Temel bir sal\u0131n\u0131ml\u0131 \u00e7ek valf, bir valf g\u00f6vdesi, bir kapak ve bir mente\u015feye ba\u011fl\u0131 bir diskten olu\u015fur. Disk, ileri y\u00f6nde ak\u0131\u015fa izin vermek i\u00e7in valf yuvas\u0131ndan uzakla\u015f\u0131r ve geri ak\u0131\u015f\u0131 \u00f6nlemek i\u00e7in yukar\u0131 ak\u0131\u015f durduruldu\u011funda valf yuvas\u0131na geri d\u00f6ner.<\/p>\n\n\n\n
Sal\u0131n\u0131ml\u0131 tip \u00e7ek valflerde disk, tamamen a\u00e7\u0131l\u0131p kapan\u0131rken k\u0131lavuzsuzdur. Farkl\u0131 uygulamalar\u0131n gereksinimlerini kar\u015f\u0131lamak i\u00e7in bir\u00e7ok disk ve koltuk tasar\u0131m\u0131 mevcuttur. Valf tam, engelsiz ak\u0131\u015fa izin verir ve bas\u0131n\u00e7 azald\u0131k\u00e7a otomatik olarak kapan\u0131r. Bu vanalar, ak\u0131\u015f s\u0131f\u0131ra ula\u015ft\u0131\u011f\u0131nda geri ak\u0131\u015f\u0131 \u00f6nlemek i\u00e7in tamamen kapat\u0131l\u0131r. Vanadaki t\u00fcrb\u00fclans ve bas\u0131n\u00e7 kayb\u0131 \u00e7ok d\u00fc\u015f\u00fckt\u00fcr.<\/p>\n\n\n
![\"\"](\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/07\/Swing-Check-Valve.jpg\")
<\/figure>\n<\/div>\n\n\nEnd\u00fcstri Kodlar\u0131 ve Standartlar\u0131<\/p>\n\n\n\n
- \n
- Valf Tasar\u0131m\u0131: BS 1868 \/ API 6D<\/li>\n\n\n\n
- Bas\u0131n\u00e7 Testi: BS 6755-I<\/li>\n\n\n\n
- Y\u00fcz Y\u00fcze: ANSI B 16.10<\/li>\n\n\n\n
- Flan\u015f Delme : ANSI B 16.5 \/ BS 10 Tablo \/ DIN \/ IS \/ JIS Std.<\/li>\n\n\n\n
- Al\u0131n Kaynak Ucu: ANSI B 16.25<\/li>\n\n\n\n
- Y\u00fcz Y\u00fcze: ANSI B 16.10<\/li>\n\n\n\n
- Soket Kaynak Ucu: ANSI B 16.11<\/li>\n\n\n\n
- Vidal\u0131 U\u00e7: ANSI B 1.20.1(BSP\/NPT)<\/li>\n<\/ul>\n\n\n\n
Gofret \u00c7ek Valfler<\/mark><\/strong><\/a><\/h3>\n\n\n\n
Wafer Tip \u00c7ek Valf, k\u0131sa y\u00fcz y\u00fcze boyutlara ve d\u00fc\u015f\u00fck a\u011f\u0131rl\u0131\u011fa sahip olup, tamamlay\u0131c\u0131 flan\u015flar aras\u0131nda yerden tasarruf sa\u011flayan basit bir kuruluma olanak tan\u0131r.<\/p>\n\n\n\n
Vanalar farkl\u0131 standartlardaki kaynak boyunlu veya ge\u00e7meli tip flan\u015flar aras\u0131na montaja uygundur.<\/p>\n\n\n\n
D\u00fc\u015f\u00fck bas\u0131n\u00e7 kayb\u0131n\u0131n gerekli oldu\u011fu uygulamalar i\u00e7in \u00f6zel olarak geli\u015ftirilmi\u015ftir. Vanan\u0131n a\u00e7\u0131l\u0131p kapanmas\u0131, vana diski \u00fczerinde son derece d\u00fc\u015f\u00fck bir bas\u0131n\u00e7 fark\u0131nda ger\u00e7ekle\u015fecektir.<\/p>\n\n\n\n
Disk yuvas\u0131 ile eksantrik disk mili kombinasyonu, geri d\u00f6nen ortam\u0131n pozitif olarak kapat\u0131lmas\u0131n\u0131 garanti eder. Wafer \u00e7ek valfler, kompakt tasar\u0131mlar\u0131 ve nispeten d\u00fc\u015f\u00fck maliyetleri nedeniyle \u00e7o\u011fu uygulama i\u00e7in tercih edilen \u00e7ek valf t\u00fcr\u00fc haline geliyor.<\/p>\n\n\n
\n![\"Wafer](\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/06\/wafer-dual-plate-check-valve.jpg\")
Wafer \u00c7ift Plakal\u0131 \u00c7ekvalf<\/figcaption><\/figure>\n<\/div>\n\n\n Kald\u0131rma \u00c7ek Valf\u0131 \/ Piston \u00c7ek Valf\u0131<\/h3>\n\n\n\n
Kald\u0131rma-\u00c7ek valfinin yuva tasar\u0131m\u0131 Glob valfe benzer. Disk genellikle piston veya top \u015feklindedir.<\/p>\n\n\n\n
Kald\u0131rma \u00c7ek valfleri \u00f6zellikle y\u00fcksek ak\u0131\u015f h\u0131z\u0131na sahip y\u00fcksek bas\u0131n\u00e7l\u0131 servis i\u00e7in uygundur. Kald\u0131rma \u00c7ek valflerinde disk hassas bir \u015fekilde y\u00f6nlendirilir ve amortis\u00f6re m\u00fckemmel \u015fekilde oturur. Kald\u0131rma \u00c7ek valfleri, yukar\u0131 ak\u0131\u015fl\u0131 yatay veya dikey boru hatlar\u0131na montaj i\u00e7in uygundur.<\/p>\n\n\n\n
Kald\u0131rmak i\u00e7in ak\u0131\u015f \u00c7ek valfler her zaman koltu\u011fun alt\u0131ndan girmelidir. Ak\u0131\u015f girerken, piston veya bilye, yukar\u0131 do\u011fru ak\u0131\u015f\u0131n bas\u0131nc\u0131yla yataktan k\u0131lavuzlar i\u00e7erisinde kald\u0131r\u0131l\u0131r. Ak\u0131\u015f durdu\u011funda veya tersine d\u00f6nd\u00fc\u011f\u00fcnde piston veya bilye, hem geri ak\u0131\u015f hem de yer \u00e7ekimi nedeniyle valf yuvas\u0131na do\u011fru zorlan\u0131r.<\/p>\n\n\n
\n![\"\"](\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/07\/Piston-Check-Valve-798x1024.jpg\")
<\/figure>\n<\/div>\n\n\nK\u00fcresel \u00c7ek Valfler<\/h3>\n\n\n\n
K\u00fcresel \u00e7ek valfler basittir ve genellikle k\u00fc\u00e7\u00fck pompalarda ve al\u00e7ak ba\u015fl\u0131kl\u0131 sistemlerde kullan\u0131l\u0131r. Bilyal\u0131 \u00e7ek valfler, \u00e7atlama bas\u0131nc\u0131n\u0131n alt\u0131ndaki bas\u0131n\u00e7larda kapanmak i\u00e7in yay y\u00fckl\u00fc veya serbest y\u00fczen k\u00fcresel bilyeli bir klape i\u00e7erir. S\u0131zd\u0131rmazl\u0131k yuvas\u0131, topu yuvaya y\u00f6nlendirmek ve pozitif bir s\u0131zd\u0131rmazl\u0131k olu\u015fturmak i\u00e7in konik olarak koniktir. Ancak bu valfler uzun s\u00fcreli kullan\u0131ma ba\u011fl\u0131 olarak kolayl\u0131kla a\u015f\u0131nabilir ve s\u0131k bak\u0131m gerektirebilir.<\/p>\n\n\n
\n![\"\"](\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/07\/Ball-Check-Valves.webp\")
<\/figure>\n<\/div>\n\n\nDevirme Diskli \u00c7ekvalfler<\/h3>\n\n\n\n
Devirme diskli \u00e7ek valf g\u00f6r\u00fcn\u00fcm olarak eksantrik kelebek vanaya benzer. Valf g\u00f6vdesi \u00e7ift flan\u015fl\u0131 ve k\u0131sa uzunluktad\u0131r. Disk, hem yatay hem de dikey eksenlerde g\u00f6vde merkez hatt\u0131ndan eksantrik olarak konumland\u0131r\u0131lm\u0131\u015f bir \u015faft arac\u0131l\u0131\u011f\u0131yla yerle\u015ftirilir.<\/p>\n\n\n\n
\u015eaft\u0131n \u00e7ift eksantrikli\u011fi, diskin alt b\u00f6l\u00fcm\u00fcn\u00fcn ak\u0131\u015f yolunda daha b\u00fcy\u00fck bir alan kaplamas\u0131na neden olur. Sonu\u00e7 olarak disk \u00e7ok d\u00fc\u015f\u00fck ak\u0131\u015f h\u0131zlar\u0131nda a\u00e7\u0131lmaya ba\u015flar. Bu nedenle, devirme diskli \u00e7ek valf, d\u00fc\u015f\u00fck ak\u0131\u015f h\u0131zlar\u0131na sahip pompalama sistemlerinde ve titre\u015fimli ak\u0131\u015flarda yayg\u0131n olarak kullan\u0131l\u0131r.<\/p>\n\n\n\n
Ak\u0131\u015f\u0131n tersine \u00e7evrilmesi s\u0131ras\u0131nda disk yer \u00e7ekimi nedeniyle kapan\u0131r. Diskin \u015faft merkez hatt\u0131n\u0131n \u00fczerindeki \u00fcst k\u0131sm\u0131 ak\u0131\u015fa kar\u015f\u0131 iter, b\u00f6ylece kapal\u0131 konuma d\u00f6nerken diski tamponlayan bir hidrolik fren g\u00f6revi g\u00f6r\u00fcr. Valfin kapanma \u00f6zelliklerini ayarlamak i\u00e7in devirme diskli valfler opsiyonel kollar ve a\u011f\u0131rl\u0131klarla birlikte temin edilebilir. Bu nedenle devirme diskli \u00e7ek valfler su darbesi riskini azaltmak i\u00e7in \u00e7ok uygundur.<\/p>\n\n\n
\n![\"\"](\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/07\/Tilted-Disc-check-valves.jpg\")
<\/figure>\n<\/div>\n\n\nKelebek \u00c7ek Valf<\/h3>\n\n\n\n
Kelebek \u00e7ek valf, \u00e7ift plakal\u0131 bir \u00e7ek valf, katlan\u0131r diskli \u00e7ek valf, \u00e7ift diskli veya b\u00f6l\u00fcnm\u00fc\u015f diskli \u00e7ek valftir. Ad\u0131ndan da anla\u015f\u0131laca\u011f\u0131 gibi, diskin iki yar\u0131s\u0131 ileri ak\u0131\u015fla merkez \u00e7izgisine do\u011fru hareket eder ve ters ak\u0131\u015fla iki yar\u0131s\u0131 a\u00e7\u0131l\u0131r ve ak\u0131\u015f\u0131 kapatmak i\u00e7in yuvaya yaslan\u0131r.<\/p>\n\n\n\n
Bu t\u00fcr \u00e7ek valfler, d\u00fc\u015f\u00fck bas\u0131n\u00e7l\u0131 s\u0131v\u0131 sistemleri ve gaz boru sistemleri i\u00e7in iyidir. Hafif ve kompakt yap\u0131s\u0131, alan ve rahatl\u0131\u011f\u0131n \u00f6nemli oldu\u011fu durumlarda onu tercih edilen bir se\u00e7im haline getirir. Ayr\u0131ca geleneksel tam g\u00f6vdeli \u00e7ekvalflere g\u00f6re 80 ila 90% aras\u0131nda daha hafiftir ve kurulum ve bak\u0131m maliyeti di\u011fer tiplere g\u00f6re daha d\u00fc\u015f\u00fckt\u00fcr.<\/p>\n\n\n\n
Diyafram \u00c7ek Valf<\/h3>\n\n\n\n
Diyaframl\u0131 \u00e7ek valfler, geri ak\u0131\u015f\u0131 \u00f6nlemek i\u00e7in kau\u00e7uk esnek diyaframlardan veya kendili\u011finden merkezlenen disklerden olu\u015fur. Giri\u015f bas\u0131nc\u0131 artt\u0131\u011f\u0131nda diyafram esneyerek a\u00e7\u0131l\u0131r ve ak\u0131\u015f ba\u015flar. \u0130ki tip diyaframl\u0131 \u00e7ekvalf vard\u0131r;<\/p>\n\n\n\n
- \n
- Serbest Y\u00fczer Normalde A\u00e7\u0131k Vana<\/li>\n\n\n\n
- Sabit Esnek Normalde Kapal\u0131 Vana<\/li>\n<\/ul>\n\n\n\n
Normalde a\u00e7\u0131k diyaframl\u0131 valfler durumunda, kendi kendine merkezlenen elastomerik diyafram serbest\u00e7e y\u00fczd\u00fc\u011f\u00fc i\u00e7in \u00e7atlatma bas\u0131nc\u0131na gerek yoktur. Ancak vanay\u0131 kapatmak i\u00e7in kar\u015f\u0131 bas\u0131nca ihtiya\u00e7lar\u0131 var. \u00d6te yandan normalde kapal\u0131 vanalar, sabit diyafram\u0131n esnekli\u011fini a\u015fabilmek i\u00e7in belirli bir giri\u015f bas\u0131nc\u0131na ihtiya\u00e7 duyar.<\/p>\n\n\n\n
\u00c7ek Valf Durdurma<\/h3>\n\n\n\n
Durdurma \u00e7ek valfi, tek bir g\u00f6vdeye yerle\u015ftirilmi\u015f iki valftir. \u0130zolasyon veya d\u00fczenleme amac\u0131yla k\u00fcresel vana g\u00f6revi g\u00f6rebilir. Yine geri ak\u0131\u015f\u0131 \u00f6nlemek i\u00e7in \u00e7ek valf g\u00f6revi g\u00f6rebilir. Stop \u00e7ek valf di\u011fer \u00e7ek valflerden farkl\u0131 olarak dik veya a\u00e7\u0131sal y\u00f6nde ek olarak harici bir kontrol mekanizmas\u0131na sahiptir. Durdurma \u00c7ek valfleri, enerji santralleri, kazan sirk\u00fclasyonu, buhar jenerat\u00f6rleri, t\u00fcrbin so\u011futmas\u0131 ve g\u00fcvenlik sistemleri gibi buhar hizmetlerinde pop\u00fclerdir.<\/p>\n\n\n\n\n
\u0130lgili Etiketler :<\/h2>\n\n\n\n\n
\nZECO Valf<\/a>\n\n<\/div>\n\n\n\n\nNBR Kelebek Vana<\/a>\n\n<\/div>\n\n\n\n\nGlob Vana Nedir?<\/a>\n\n<\/div>\n\n\n\n\nS\u00fcrg\u00fcl\u00fc Vana vs K\u00fcresel Vana<\/a>\n\n<\/div>\n\n\n\n\nEksenel \u00c7ekvalf Nedir<\/a>\n\n<\/div>\n\n\n\n\n\nS\u00fcrg\u00fcl\u00fc Vana ve Kelebek Vana Aras\u0131ndaki Fark<\/a>\n\n<\/div>\n\n\n\n\nK\u00fcresel Vana vs Glob Vana<\/a>\n\n<\/div>\n\n\n\n\nOtomatik Kontrol Vanalar\u0131 Nedir?<\/a>\n\n<\/div>","protected":false},"excerpt":{"rendered":"\u00c7ek valfler hemen hemen her end\u00fcstriyel uygulamada tek y\u00f6nl\u00fc veya \u00e7ek valf g\u00f6revi g\u00f6ren bulunur. \u00c7ek valfler, a\u015fa\u011f\u0131daki i\u015flemleri ger\u00e7ekle\u015ftiren basit cihazlard\u0131r\u2026 Daha fazla bilgi edinin<\/a><\/p>","protected":false},"author":2,"featured_media":18005,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","kt_blocks_editor_width":"","footnotes":""},"categories":[1],"tags":[2823,2824,2819,1882,2825,2822,2826,1857,2820,2821,1883,2546],"class_list":["post-19521","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-ball-check-valve","tag-butterfly-check-valve","tag-check-valve-types","tag-check-valve-wiki","tag-diaphragm-check-valve","tag-lift-check-valve","tag-stop-check-valve","tag-swing-check-valve","tag-types-of-check-valve","tag-types-of-check-valves","tag-valve-wikipedia","tag-wafer-check-valve","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"featured_image_src_large":["https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/07\/Wafer-Type-Check-Valve.jpg",800,600,false],"author_info":{"display_name":"Jerry","author_link":"https:\/\/zecovalve.com\/tr\/author\/jerry"},"comment_info":0,"category_info":[{"term_id":1,"name":"Uncategorized","slug":"uncategorized","term_group":0,"term_taxonomy_id":1,"taxonomy":"category","description":"","parent":0,"count":452,"filter":"raw","cat_ID":1,"category_count":452,"category_description":"","cat_name":"Uncategorized","category_nicename":"uncategorized","category_parent":0}],"tag_info":[{"term_id":2823,"name":"Ball Check Valve","slug":"ball-check-valve","term_group":0,"term_taxonomy_id":2823,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":2824,"name":"Butterfly Check Valve","slug":"butterfly-check-valve","term_group":0,"term_taxonomy_id":2824,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":2819,"name":"Check Valve Types","slug":"check-valve-types","term_group":0,"term_taxonomy_id":2819,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":1882,"name":"Check Valve Wiki","slug":"check-valve-wiki","term_group":0,"term_taxonomy_id":1882,"taxonomy":"post_tag","description":"\r\n\r\nGET CHECK VALVE WIKI<\/strong><\/a>\r\n\r\n\r\n\r\n\r\n\r\n\r\n
Valve Wiki<\/h2>\r\n\r\n\r\n\r\n\r\nA valve is a device or natural object that regulates, directs, or controls the flow of a fluid (gases, liquids, fluidized solids, or slurries) by opening, closing, or partially obstructing various passageways. Valves are technically fittings but are usually discussed as a separate category. In an open valve, fluid flows in a direction from higher pressure to lower pressure.\r\n\r\n\r\n\r\n\r\n\r\nThe simplest, and very ancient, valve is simply a freely hinged flap that swings down to obstruct fluid (gas or liquid) flow in one direction but is pushed up by the flow itself when the flow is moving in the opposite direction. This is called a check valve, as it prevents or \"checks\" the flow in one direction. Modern control valves may regulate pressure or flow downstream and operate on sophisticated automation systems. (sources from Wikipedia)\r\n\r\n\r\n\r\n\r\n
Check Valve Wiki<\/strong><\/h2>\r\n\r\n\r\n\r\n\r\nA check valve is a type of valve that normally allows fluid (liquid or gas) to flow through it in one direction, but not the opposite direction. Check valves are two-port valves, meaning they have two openings in the body, one for fluid to enter and the other for fluid to leave. There are various types of check valves used in a wide variety of applications. Check valves are often part of common household items. Although they are available in a wide range of sizes and costs, many check valves are very small, simple, and\/or cheap. Check valves work automatically and most are not controlled by a person or any external control; accordingly, most do not have any valve handle or stem. The bodies (external shells) of most check valves are made of plastic or metal, and some alloy check valves are made of exotic materials, such as nickel-copper alloys or titanium.\r\n\r\n\r\n\r\n\r\n
Type of Check Valves<\/a><\/h3>\r\n\r\n\r\n\r\n
Ball Check Valve<\/h4>\r\n\r\n\r\n\r\n\r\nA ball check valve is a check valve in which the closing member, the movable part to block the flow, is a spherical ball. In some ball check valves, the ball is spring-loaded to help keep it shut. For those designs without a spring, reverse flow is required to move the ball toward the seat and create a seal. The interior surface of the main seats of ball check valves is more or less conically-tapered to guide the ball into the seat and form a positive seal when stopping reverse flow.\r\n\r\n\r\n\r\n\r\n\r\nA ball check valve uses a free-floating or spring-loaded ball that rests on the sealing seat to close the orifice. The sealing seat is normally conically tapered to guide the ball into the seat and create a positive seal, thereby stopping reverse flow. When the pressure of the fluid in the inlet side exceeds the cracking pressure, the ball is dislodged from its seat, which permits flow. When the inlet pressure doesn\u2019t exceed the cracking pressure, or there is back pressure, the ball will close with the back pressure or via the spring, effectively closing the orifice. True union ball check valves allow for easy removal and replacement of balls, eliminating the need to buy a new valve.\r\n\r\n\r\n\r\n\r\n
Diaphragm Check Valve<\/h4>\r\n\r\n\r\n\r\n\r\nA diaphragm check valve uses a flexing rubber diaphragm positioned to create a normally-closed valve. Pressure on the upstream side must be greater than the pressure on the downstream side by a certain amount, known as the pressure differential, for the check valve to open allowing flow. Once positive pressure stops, the diaphragm automatically flexes back to its original closed position.\r\n\r\n\r\n\r\n\r\n
Swing Check Valve<\/h4>\r\n\r\n\r\n\r\n\r\nSwing check valves are called \u2018tilting-disc\u2019 or \u2018flapper\u2019 check valves. They have a disc on a hinge (or trunnion) that swings open with an inlet pressure. The disc swings shut as the inlet pressure decreases or if there is backflow. If there is no spring to assist in closing, mounting orientation is important to consider to ensure that the disc swings shut with gravity. A dual disk or double door check valve has a central disk that is split into two semicircular doors that function independently hinged on a central pivot point. Figure 7 shows an example of a swing check valve. Read our article on swing check valves for more information.\r\n\r\n\r\n\r\n\r\n
Stop Check Valve<\/h4>\r\n\r\n\r\n\r\n\r\nA stop-check valve is a check valve with override control to stop flow regardless of flow direction or pressure. In addition to closing in response to backflow or insufficient forward pressure, it can also be deliberately shut by an external mechanism, thereby preventing any flow regardless of forward pressure.\r\n\r\n\r\n\r\n\r\n
Lift Check Valve<\/h4>\r\n\r\n\r\n\r\n\r\nA lift-check valve is a check valve in which the disc, sometimes called a lift, can be lifted up off its seat by higher pressure of inlet or upstream fluid to allow flow to the outlet or downstream side. A guide keeps the motion of the disc on a vertical line, so the valve can later reseat properly. When the pressure is no longer higher, gravity or higher downstream pressure will cause the disc to lower onto its seat, shutting the valve to stop reverse flow.\r\n\r\n\r\n\r\n\r\n
Spring-loaded in-line Check Valve<\/h4>\r\n\r\n\r\n\r\n\r\nIn-line spring-loaded check valves are common, easy to understand, and have a simple design. Figure 2 shows a spring-loaded in-line check valve in the open and closed positions. The arrows indicate flow direction. When flow enters the input port of the valve, it should have enough pressure (force) to overcome the cracking pressure and the spring force. The pressure pushes the disc, opening the orifice and allowing flow to move through the valve. When the input pressure is no longer high enough or there is enough back pressure, the back pressure and spring push the disc against the orifice and seal the valve shut. The spring, along with the short travel distance for the disc, allows for a quick reaction time for closing. This valve design also prevents pressure surges in the line, preventing water hammering.\r\n\r\n\r\n\r\n\r\n
Duckbill Valve<\/h4>\r\n\r\n\r\n\r\n\r\nA duckbill valve is a check valve in which flow proceeds through a soft tube that protrudes into the downstream side. Back pressure collapses this tube, cutting off flow.\r\n\r\n\r\n\r\n\r\n
Multiple Check Valve<\/h4>\r\n\r\n\r\n\r\n\r\nMultiple check valves can be connected in series. For example, a double-check valve is often used as a backflow prevention device to keep potentially contaminated water from siphoning back into municipal water supply lines. There are also double ball check valves in which there are two ball or seat combinations sequentially in the same body to ensure positive leak-tight shutoff when blocking reverse flow; and piston check valves, wafer check valves, and ball-and-cone check valves.\r\n\r\n\r\n\r\n\r\n
Flap Valve Wiki<\/h2>\r\n\r\n\r\n\r\n\r\nA flap valve is a type of non-return device for water or sewerage. The purpose of a flap valve is to ensure water can pass through the valve in one direction only. Flap valves operate by water flowing through a pipe or culvert and pushing the swinging door open. When the water level on the downstream side of the flap valve is higher than in the pipe or culvert it presses the swinging, door shut and prevents the water from traveling back through the system.\r\n\r\n\r\n\r\n\r\n\r\nA Flap Valve, in simple words, permits gas or fluid to flow in one direction while preventing backflow. A spring-loaded or weighted flap affixed to the opening of a pipe, tube, or duct accomplishes this function. Flap valves are commonly used as industrial equipment to direct flow in the desired direction. They can be opened manually or remotely, and they can be opened by the force of the flow. The purpose of a flap valve is to send water out of a flanged pipe while preventing debris such as sticks and leaves from flowing back in. The valve will open when direct pressure is applied to it, and it will close when that pressure is alleviated.\r\n\r\n","parent":0,"count":9,"filter":"raw"},{"term_id":2825,"name":"Diaphragm Check Valve","slug":"diaphragm-check-valve","term_group":0,"term_taxonomy_id":2825,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":2822,"name":"Lift Check Valve","slug":"lift-check-valve","term_group":0,"term_taxonomy_id":2822,"taxonomy":"post_tag","description":"","parent":0,"count":2,"filter":"raw"},{"term_id":2826,"name":"Stop Check Valve","slug":"stop-check-valve","term_group":0,"term_taxonomy_id":2826,"taxonomy":"post_tag","description":"","parent":0,"count":1,"filter":"raw"},{"term_id":1857,"name":"swing check valve","slug":"swing-check-valve","term_group":0,"term_taxonomy_id":1857,"taxonomy":"post_tag","description":"","parent":0,"count":10,"filter":"raw"},{"term_id":2820,"name":"Types of Check Valve","slug":"types-of-check-valve","term_group":0,"term_taxonomy_id":2820,"taxonomy":"post_tag","description":"\r\n\r\nCheck valves are found in almost every industrial application acting as one-way or non-return valves. Check valves are simple devices that perform a vital function by preventing reverse flows, therefore preventing damage and ensuring efficient operations. Different types of check valves are designed for a specific application. To help you choose the right check valve for your needs, here are a few of the most common types of check valves and their recommended applications. Follow this new blog in Linquip to find out more.\r\n\r\n\r\n\r\n\r\n\r\n\r\n\r\nGET TYPES OF CHECK VALVE INFORMATION<\/strong><\/a>\r\n\r\n\r\n\r\n\r\n
Working of Types of Check Valves<\/h2>\r\n\r\n\r\n\r\n\r\nAs already stated that a check valve operates on the principle of differential pressure. For a check valve to open, it must attain a minimum upstream pressure known as cracking pressure. Depending on the check valve design and size, the cracking pressure changes. When the upstream pressure reaches the cracking pressure, the valve opens allowing the fluid to enter. When the upstream pressure falls below the cracking pressure, back pressure is generated and the flow attempt to move from outlet to inlet. At this point, the check valve closes, and the flow halts. The closing mechanism of a check valve varies depending on the design and type of the valve. Spring or Gravity pressure normally assist the closing process.\r\n\r\n\r\n\r\n\r\n
Check Valve Types<\/h2>\r\n\r\n\r\n\r\n
Lift Check Valve<\/h3>\r\n\r\n\r\n\r\n\r\nLift-check valves feature a guided disc and a similar seating arrangement as globe valves. The disc is usually in the form of a piston or a ball. There are three body patterns (horizontal, angle, and vertical) that can be installed in horizontal or vertical lines with upward flow.\r\n\r\n\r\n\r\n\r\n\r\nWhen the flow enters below the seat, a disk is raised from the seat by the pressure of the upward flow. When the flow stops or reverses, the backflow and gravity force the disk downward to set on the seat.\r\n\r\n\r\n\r\n\r\n\r\nLift check valves are particularly suitable for high-pressure service where the velocity of flow is high. They are commonly used in high-rise buildings, industrial and power plant applications, and water and wastewater applications. They have no external moving parts and are known to be economical and reliable. Over time, these types of check valves can have high energy costs because the disc remains in the flow stream during operation.\r\n\r\n\r\n\r\n\r\n\r\nThere are two types of lift check valves:\r\n\r\n\r\n\r\n\r\n
Piston Check Valve<\/h4>\r\n\r\n\r\n\r\n\r\nThis type of check valve is also known as a plug check valve. It operates by controlling the flow of fluid in a piping system utilizing the linear motion of a piston within the valve chamber. Sometimes the piston has a spring attached, which helps it stay in the closed position when not in use.\r\n\r\n\r\n\r\n\r\n
Ball Check Valve<\/h4>\r\n\r\n\r\n\r\n\r\nThe ball check valve operates simply using gravity. When there is enough pressure in the flow, the ball is lifted upward, and when the pressure is decreased, the ball rolls down and closes the opening. Ball Check Valves come in a wide range of material types and style types.\r\n\r\n\r\n\r\n\r\n
Swing Check Valve<\/h3>\r\n\r\n\r\n\r\n\r\nSwing Check Valves are available in straight body design and y-pattern design. The disk is suspended from the body by means of a hinge pin and seals against the seat which is integral to the body.\r\n\r\n\r\n\r\n\r\n\r\nThese valves are typically used in sizes 2 inches and over. Swing check valves can be installed in both horizontal and vertical positions. They are not suitable for pulsating flow.\r\n\r\n\r\n\r\n\r\n\r\nThe closure response of the swing check valve is slower compared to the lift check valve due to longer disc travel and inertia of the disk.\r\n\r\n\r\n\r\n\r\n
Specifications of Swing Check Valve<\/h4>\r\n\r\n\r\n\r\n
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- Valve Design: BS 1868 \/ API 6D<\/li>\r\n \t
- Pressure Testing: BS 6755-I<\/li>\r\n \t
- Face To Face: ANSI B 16.10<\/li>\r\n \t
- Flange Drilling : ANSI B 16.5 \/ BS 10 Table \/ DIN \/ IS \/ JIS Std.<\/li>\r\n \t
- Butt Weld End: ANSI B 16.25<\/li>\r\n \t
- Face to Face: ANSI B 16.10<\/li>\r\n \t
- Socket Weld End: ANSI B 16.11<\/li>\r\n \t
- Screwed End: ANSI B 1.20.1(BSP\/NPT)<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
Tilting Disc Check Valve<\/h3>\r\n\r\n\r\n\r\n\r\nThe tilting disc check valve is similar in appearance to an eccentric butterfly valve. The valve body is double\u2010flanged and of a short length. The disc is held in place via a shaft which is positioned eccentrically from the body centreline in both the horizontal and vertical axes.\r\n\r\n\r\n\r\n\r\n\r\nThe double eccentricity of the shaft results in the lower section of the disc occupying a greater area in the flow path. Consequently, the disc begins to open at very low flow rates. The tilting disc check valve is therefore commonly used in pumping systems with low flow rates and also for pulsating flows.\r\n\r\n\r\n\r\n\r\n\r\nDuring flow reversal, the disc closes due to gravity and the upper part of the disc above the shaft centreline pushes against the flow thus acting as a hydraulic brake that cushions the disc as it returns to the closed position. Tilting disc valves can be supplied with optional levers and weights to adjust the closing characteristics of the valve. As such, the tilting disc check valves are well suited to reduce the risk of water hammers.\r\n\r\n\r\n\r\n\r\n
Butterfly Check Valve<\/h3>\r\n\r\n\r\n\r\n\r\nA butterfly check valve is known as a dual plate check valve, folding disc check valve, double-disc, or split disc check valve. As the name suggests, two halves of the disk move towards the centerline with the forward flow, and with reverse flow two halves open and rest on the seat to close the flow.\r\n\r\n\r\n\r\n\r\n\r\nThese types of check valves are good for low-pressure liquid systems as well as gas piping systems. Its lightweight and compact construction make it a preferable choice when space and convenience are important. Besides, it is 80 to 90% lighter than the conventional full-body check valve and the cost of installation and maintenance is lower compared to other types.\r\n\r\n\r\n\r\n\r\n
Stop Check Valve<\/h3>\r\n\r\n\r\n\r\n\r\nStop-check valves can be used for many applications. They\u2019re designed to start, stop, and regulate the flow of materials, and they help to prevent backflow.\r\n\r\n\r\n\r\n\r\n\r\nIf the pressure in the system is too low, these valves will automatically close to prevent reverse flow. As a result, damage usually caused by backflow is prevented.\r\n\r\n\r\n\r\n\r\n\r\nstop-check-valveThese types of check valves also work with an external mechanism or an override control. With these, you can set the valve to close regardless of flow direction or pressure to ensure safe and efficient operations.\r\n\r\n\r\n\r\n\r\n\r\nGenerally, stop-check valves are used in power plants and boiler systems. They\u2019re also beneficial for petroleum production and refining, hydrocarbon processing, and high-pressure safety services.\r\n\r\n\r\n\r\n\r\n
Diaphragm Check Valve<\/h3>\r\n\r\n\r\n\r\n\r\nDiaphragm check valves consist of rubber flexing diaphragms or self-centering discs for preventing backflow. When the inlet pressure is increased, the diaphragm flexes open, and flow starts. There are two types of diaphragm check valves;\r\n\r\n\r\n\r\n\r\n
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- Free-floating Normally Open Valve<\/li>\r\n \t
- Fixed Flexing Normally closed Valve<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n\r\nIn the case of normally open diaphragm valves, no cracking pressure is required as the self-centering elastomeric diaphragm is free-floating. However, they need back pressure to close the valve. On the other hand, normally closed valves need a certain inlet pressure to overcome the elasticity of the fixed diaphragm.\r\n\r\n\r\n\r\n\r\n\r\nDue to very low cracking pressure, Diaphragm check valves find their use in low pressure and vacuum applications.\r\n\r\n\r\n\r\n\r\n
Spring Loaded Check Valve<\/h3>\r\n\r\n\r\n\r\n\r\nThere are two types of Spring Loaded Check Valves; Spring Loaded in-line valves and Spring loaded Y-valves.\r\n\r\n\r\n\r\n\r\n
Spring Loaded in-line valve<\/h4>\r\n\r\n\r\n\r\n\r\nIn-line valves are also known as Nozzle Check Valves or Silent Check Valves. These valves employ a centrally guided stem-disc assembly along with a compression spring. To open the valve, the flow pressure must be more than the spring force and cracking pressure. In that case, the flow pushes the disc allowing the flow. When the inlet pressure reduces, the spring pushes the disc against the orifice and shut the valve.\r\n\r\n\r\n\r\n\r\n
Spring Loaded Y-valve<\/h4>\r\n\r\n\r\n\r\n\r\nThe operating principle of Spring-loaded y-check valves is similar to in-line check valves. The only difference is that the spring and movable disc are located at an angle to form a \u2018y\u2019 shape. The main advantage of Y-type check valves is that they can be inspected and serviced while the valve is still connected to the system.\r\n\r\n\r\n\r\n\r\n
Foot Check Valve<\/h3>\r\n\r\n\r\n\r\n\r\nA foot valve is a check valve that has a strainer installed on the inlet side to prevent debris from entering the valve.\r\n\r\n\r\n\r\n\r\n
Duckbill Check Valve<\/h3>\r\n\r\n\r\n\r\n\r\nDuckbill Check Valves are unique, one-piece, elastomeric components that enable flow to proceed through a soft tube that feeds into the downstream side of the valve wherein back pressure collapses the tube and cuts off the flow.\r\n\r\n\r\n\r\n\r\n
Wafer Check Valve<\/h3>\r\n\r\n\r\n\r\n\r\nWafer check valves are very slim and compact in design and use a swinging disc to allow or block flow. They are lightweight and suitable for various applications. They are economical and are available in various sizes. The following figure shows the typical working of a Wafer Check Valve.\r\n\r\n\r\n\r\n\r\n\r\nWafer check valves are ideal for services requiring low-pressure loss as the valve operation takes place at a very low-pressure difference.\r\n\r\n\r\n\r\n\r\n
Silent Check Valve<\/h3>\r\n\r\n\r\n\r\n\r\nSilent check valves are incredibly useful for water pipelines and systems. These valves are engineered to control and protect against pressure surges that can occur in water lines. They also work to prevent water hammer and reverse flow.\r\n\r\n\r\n\r\n\r\n\r\nSilent check valves are constructed with a spring-assisted disc. When the fluid pressure in the valve is higher than the cracking pressure, or the pressure needed open or close the valve, the spring lowers the disc to prevent reverse flow.\r\n\r\n\r\n\r\n\r\n\r\nThe valve is also manufactured to include a guide to keep the disc moving in vertically. This allows it to reseat properly.\r\n\r\n\r\n\r\n\r\n
Non-slam Check Valve<\/h3>\r\n\r\n\r\n\r\n\r\nThe swing check valve closes abruptly because of gravity and causes a pressure surge resulting in shock waves.\r\n\r\n\r\n\r\n\r\n\r\nThese high-pressure waves cause severe stress on the piping system.\r\n\r\n\r\n\r\n\r\n\r\nThis problem can be minimized by installing a Non-Slam type check valve. Non-Slam check valves do not rely on gravity. As the upstream velocity of the fluid slows the spring assist on the valve start to close the disc.\r\n\r\n\r\n\r\n\r\n\r\nBy the time the upstream velocity comes to 0, the disc is completely closed. With the reverse flow eliminated, the force necessary to produce a water hammer on either side of the valve is substantially reduced.\r\n\r\n","parent":0,"count":13,"filter":"raw"},{"term_id":2821,"name":"Types of Check Valves","slug":"types-of-check-valves","term_group":0,"term_taxonomy_id":2821,"taxonomy":"post_tag","description":"","parent":0,"count":3,"filter":"raw"},{"term_id":1883,"name":"Valve Wikipedia","slug":"valve-wikipedia","term_group":0,"term_taxonomy_id":1883,"taxonomy":"post_tag","description":"\r\n\r\nGET VALVE WIKIPEDIA<\/strong><\/a>\r\n\r\n\r\n\r\n\r\n\r\n\r\n
Valve Wikipedia<\/strong><\/a><\/h2>\r\n\r\n\r\n\r\n\r\nA valve is a device or natural object that regulates, directs, or controls the flow of a fluid (gases, liquids, fluidized solids, or slurries) by opening, closing, or partially obstructing various passageways.\r\n\r\n\r\n\r\n\r\n
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<\/figure>\r\n\r\n\r\n<\/div>\r\n\r\n\r\n<\/div>\r\n\r\n\r\n\r\nWhat is the Function of Valve?<\/h2>\r\n\r\n\r\n\r\n
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- Ball valve:\r\n
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- The ball valve is a common valve type, which is improved from the plug valve and replaces the plunger with a ball. The ball is provided with a through-the-hole, and the rotation of the ball can control the cooperation between the through-the-hole and the flow channel to adjust the opening and closing of the valve. The ball valve is used to cut off, distribute and change the flow direction of the medium in the pipeline. It only needs to be rotated 90 degrees and a small torque can be closed tightly. The valve seat can be made of suitable material according to the working conditions. It is widely used because of its good sealing performance, simple structure, and easy operation and maintenance.<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n\r\n\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
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- Globe valve:\r\n
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- It is called because its shape resembles a ball. It opens or closes the flow channel with the cooperation of the valve plate and the valve seat. It is often used for cutting off and throttling. The flow channel in the valve body is S-shaped, when the fluid passes through, the flow direction will be changed, which will increase the resistance and reduce the fluid pressure.<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n\r\n\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
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- Gate valve:\r\n
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- The valve stem is used to drive the gate to move in a straight line, and the gate is lifted to open or close the flow channel. When the gate is half-opened, the fluid impacting the gate will easily cause the valve seat to vibrate and be damaged, so it is not suitable for throttling use. It is only suitable for fully open or fully closed occasions.<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n\r\n\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
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- Check valve:\r\n
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- A check valve is also called a one-way valve. It is a valve that automatically opens and closes according to the pressure difference between the front and rear of the valve disc, allowing only a one-way flow of fluid. Under the action of fluid pressure in one direction, the valve flap opens to make the flow channel unblocked. Conversely, when the fluid pressure in the other direction acts, the valve flap is closed to prevent backflow.<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n\r\n\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
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- Butterfly valve:\r\n
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- The butterfly valve can adjust the opening and closing and flow rate by controlling the rotation angle of the valve plate. Butterfly valves can be divided into elastic seals and metal direct seals. The elastic seals use rubber rings to prevent leakage and have good low-pressure sealing, but the rubber rings have temperature and pressure limitations. Metal direct sealing is direct contact between metal surfaces and has a wide operating temperature range. Butterfly valves are suitable for installation on large-diameter pipes.<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n\r\n\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
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- Plug valve:\r\n
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- The plug valve is mainly composed of a valve body and a plug, and the faucet is a kind of plug valve.<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n\r\n\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n\r\n\r\n
How is the Valve Produced?<\/h2>\r\n\r\n\r\n\r\n\r\nValves can be produced in any desired diameter and from various materials. Valves can control all fluids, from gases to high-impact chemicals, steam, toxic gases, and radioactive materials. They can operate from very low temperatures to the highest temperatures, from vacuum pressures to hundreds of bar high-pressure conditions. The valve varies according to pipe diameters, system structure, and system pressure.\r\n\r\n","parent":0,"count":7,"filter":"raw"},{"term_id":2546,"name":"Wafer Check Valve","slug":"wafer-check-valve","term_group":0,"term_taxonomy_id":2546,"taxonomy":"post_tag","description":"","parent":0,"count":4,"filter":"raw"}],"taxonomy_info":{"category":[{"value":1,"label":"Uncategorized"}],"post_tag":[{"value":2823,"label":"Ball Check Valve"},{"value":2824,"label":"Butterfly Check Valve"},{"value":2819,"label":"Check Valve Types"},{"value":1882,"label":"Check Valve Wiki"},{"value":2825,"label":"Diaphragm Check Valve"},{"value":2822,"label":"Lift Check Valve"},{"value":2826,"label":"Stop Check Valve"},{"value":1857,"label":"swing check valve"},{"value":2820,"label":"Types of Check Valve"},{"value":2821,"label":"Types of Check Valves"},{"value":1883,"label":"Valve Wikipedia"},{"value":2546,"label":"Wafer Check Valve"}]},"yoast_head":"\n
Check Valve Types - Various Types of Check Valves Manufacturer | ZECO<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/zecovalve.com\/tr\/check-valve-types.html\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Check Valve Types - Various Types of Check Valves Manufacturer | ZECO\" \/>\n<meta property=\"og:description\" content=\"Check valves are found in almost every industrial application acting as one-way or non-return valves. Check valves are simple devices that perform ... 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- The plug valve is mainly composed of a valve body and a plug, and the faucet is a kind of plug valve.<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n\r\n\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n\r\n\r\n
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- Plug valve:\r\n
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- The butterfly valve can adjust the opening and closing and flow rate by controlling the rotation angle of the valve plate. Butterfly valves can be divided into elastic seals and metal direct seals. The elastic seals use rubber rings to prevent leakage and have good low-pressure sealing, but the rubber rings have temperature and pressure limitations. Metal direct sealing is direct contact between metal surfaces and has a wide operating temperature range. Butterfly valves are suitable for installation on large-diameter pipes.<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n\r\n\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
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- Butterfly valve:\r\n
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- A check valve is also called a one-way valve. It is a valve that automatically opens and closes according to the pressure difference between the front and rear of the valve disc, allowing only a one-way flow of fluid. Under the action of fluid pressure in one direction, the valve flap opens to make the flow channel unblocked. Conversely, when the fluid pressure in the other direction acts, the valve flap is closed to prevent backflow.<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n\r\n\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
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- Check valve:\r\n
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- The valve stem is used to drive the gate to move in a straight line, and the gate is lifted to open or close the flow channel. When the gate is half-opened, the fluid impacting the gate will easily cause the valve seat to vibrate and be damaged, so it is not suitable for throttling use. It is only suitable for fully open or fully closed occasions.<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n\r\n\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
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- Gate valve:\r\n
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- It is called because its shape resembles a ball. It opens or closes the flow channel with the cooperation of the valve plate and the valve seat. It is often used for cutting off and throttling. The flow channel in the valve body is S-shaped, when the fluid passes through, the flow direction will be changed, which will increase the resistance and reduce the fluid pressure.<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n\r\n\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
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- Globe valve:\r\n
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- The ball valve is a common valve type, which is improved from the plug valve and replaces the plunger with a ball. The ball is provided with a through-the-hole, and the rotation of the ball can control the cooperation between the through-the-hole and the flow channel to adjust the opening and closing of the valve. The ball valve is used to cut off, distribute and change the flow direction of the medium in the pipeline. It only needs to be rotated 90 degrees and a small torque can be closed tightly. The valve seat can be made of suitable material according to the working conditions. It is widely used because of its good sealing performance, simple structure, and easy operation and maintenance.<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n\r\n\r\n<\/li>\r\n<\/ul>\r\n<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
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- Ball valve:\r\n
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