![\"\"](\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/01\/20220105083122-61d5575ae65f4.jpg\")
<\/figure>\n<\/div>\n\n\nDiyafram valfi nas\u0131l \u00e7al\u0131\u015f\u0131r?<\/h2>\n\n\n\n
Bir diyafram valfinin \u00e7al\u0131\u015fma g\u00fcc\u00fc \u00e7e\u015fitli kaynaklardan gelebilir. Pn\u00f6matik diyafram valfi, onu a\u00e7mak veya kapatmak i\u00e7in hava bas\u0131nc\u0131n\u0131 kullan\u0131r. Bazen valfi harekete ge\u00e7irmek i\u00e7in elektrik varl\u0131\u011f\u0131nda manyetik alan \u00fcretebilen tel sar\u0131l\u0131 metalik bir bile\u015fen olan bir solenoid kullan\u0131l\u0131r. Di\u011fer zamanlarda manuel olarak \u00e7al\u0131\u015ft\u0131r\u0131labilir. Ayr\u0131ca hidrolik bas\u0131n\u00e7 da yayg\u0131n olarak kullan\u0131lmaktad\u0131r.<\/p>\n\n\n\n
Diyaframl\u0131 Vana \u00c7e\u015fitleri<\/h2>\n\n\n\n- Weir tipi diyaframl\u0131 vanalar<\/strong>
- Savak tipi diyaframl\u0131 vana mevcut en yayg\u0131n tasar\u0131mlardan biridir ve yukar\u0131daki \u015eekil 2'de g\u00f6sterilmektedir. Y\u00fckseltilmi\u015f dudak\/yer tasar\u0131m\u0131, k\u00fc\u00e7\u00fck ak\u0131\u015f kontrol\u00fc i\u00e7in en uygunudur ve diyafram ve akt\u00fcat\u00f6r \u00fczerindeki kapak sayesinde s\u0131zd\u0131rmaz tutulur. Bu tasar\u0131m, tehlikeli veya a\u015f\u0131nd\u0131r\u0131c\u0131 s\u0131v\u0131 ve gaz i\u00e7in idealdir \u00e7\u00fcnk\u00fc membrandaki herhangi bir ar\u0131za bu kapak taraf\u0131ndan muhafaza edilecektir. Ayr\u0131ca e\u011fimli g\u00f6vde, bu valfin do\u011fas\u0131 gere\u011fi kendi kendini bo\u015faltmas\u0131n\u0131 sa\u011flar, ancak bu bo\u015faltma her iki valf y\u00f6n\u00fcnde de ger\u00e7ekle\u015febilir ve bu da baz\u0131 uygulamalar i\u00e7in ideal olmayabilir. Savak tipi vana \u00e7o\u011funlukla temiz, homojen ak\u0131\u015fkanlar i\u00e7in tasarlanm\u0131\u015ft\u0131r, \u00e7\u00fcnk\u00fc viskoz \u00e7amurlar ve \u00e7\u00f6keltiler semerin her iki taraf\u0131nda da birikebilir. \u00c7o\u011funlukla g\u0131da\/kimyasal, gaz \u00fcretimi, a\u015f\u0131nd\u0131r\u0131c\u0131 ve su uygulamalar\u0131 gibi i\u015flemlerde bulunurlar.<\/li><\/ul><\/li>
- D\u00fcz ge\u00e7i\u015fli tip diyaframl\u0131 vanalar<\/strong>
- D\u00fcz diyaframl\u0131 vana yap\u0131sal olarak savak tiplerine benzer; ancak karakteristik eyeri i\u00e7ermez ve bunun yerine tamamen d\u00fcz bir yola sahiptir. Membranlar\u0131 tipik olarak daha esnektir ve valfin en alt\u0131na temas etmesi gerekti\u011finden daha uzak hareket mesafesine izin verir. Daha esnek membranlar\u0131 nedeniyle \u00f6m\u00fcrleri savak tipi tasar\u0131mlardan daha k\u0131sa oldu\u011fundan, bu vanalar\u0131n s\u0131kl\u0131kla servise verilmesi\/de\u011fi\u015ftirilmesi gerekir. D\u00fcz diyaframl\u0131 valfler \u00e7amurlar, viskoz s\u0131v\u0131lar ve t\u0131kanman\u0131n azalt\u0131lmas\u0131 gereken di\u011fer uygulamalar i\u00e7in kullan\u0131l\u0131r. Giri\u015ften \u00e7\u0131k\u0131\u015fa h\u0131zl\u0131 ge\u00e7i\u015fi engelleyecek bir eyer bulunmad\u0131\u011f\u0131ndan \u00e7ift y\u00f6nl\u00fc ak\u0131\u015f rejimleri i\u00e7in de kullan\u0131\u015fl\u0131d\u0131rlar.<\/li><\/ul><\/li><\/ul>\n\n\n\n
Diyaframl\u0131 vanalar\u0131n avantajlar\u0131?<\/h2>\n\n\n\n- Diyaframl\u0131 vanalar k\u0131sma hizmeti i\u00e7in de kullan\u0131labilir.<\/li>
- K\u0131sma \u00f6zellikleri, koltuk boyunca geni\u015f kapatma alan\u0131 nedeniyle esasen h\u0131zl\u0131 a\u00e7\u0131lan bir valfin \u00f6zellikleridir.<\/li>
- K\u00fc\u00e7\u00fck ak\u0131\u015flar\u0131 kontrol etmek i\u00e7in savak tipi diyaframl\u0131 vana mevcuttur.<\/li>
- Diyafram valfleri \u00f6zellikle a\u015f\u0131nd\u0131r\u0131c\u0131 s\u0131v\u0131lar\u0131n, lifli bulama\u00e7lar\u0131n, radyoaktif s\u0131v\u0131lar\u0131n veya kirlenmemesi gereken di\u011fer s\u0131v\u0131lar\u0131n ta\u015f\u0131nmas\u0131 i\u00e7in uygundur.<\/li>
- Diyaframl\u0131 vanan\u0131n \u00e7al\u0131\u015fma mekanizmas\u0131 boru hatt\u0131 i\u00e7indeki ortama maruz kalmaz. Yap\u0131\u015fkan veya viskoz s\u0131v\u0131lar kaputun i\u00e7ine girerek \u00e7al\u0131\u015fma mekanizmas\u0131n\u0131 etkileyemez.<\/li>
- Di\u011fer valf t\u00fcrlerinin \u00e7o\u011funun \u00e7al\u0131\u015fma par\u00e7alar\u0131n\u0131 t\u0131kayan, a\u015f\u0131nd\u0131ran veya yap\u0131\u015fan bir\u00e7ok s\u0131v\u0131, sorun yaratmadan diyafram valfinden ge\u00e7ecektir. Bunun aksine, \u00e7al\u0131\u015ft\u0131rma mekanizmas\u0131 i\u00e7in kullan\u0131lan ya\u011flay\u0131c\u0131lar\u0131n, kullan\u0131lan ak\u0131\u015fkan\u0131 kirletmesine izin verilemez.<\/li>
- Bak\u0131m\u0131 gereken salmastra salmastralar\u0131 yoktur ve vanalarda mil s\u0131z\u0131nt\u0131s\u0131 olas\u0131l\u0131\u011f\u0131 yoktur.<\/li><\/ul>\n\n\n\n\n
\u0130lgili Etiketler :<\/h2>\n\n\n\n\n\nZECO Valf<\/a>\n\n<\/div>\n\n\n\n\nS\u00fcrg\u00fcl\u00fc Vana ve Kelebek Vana Aras\u0131ndaki Fark<\/a>\n\n<\/div>\n\n\n\n\nGlob Vanalar Nedir?<\/a>\n\n<\/div>\n\n\n\n\nManuel Kumandal\u0131 S\u00fcrg\u00fcl\u00fc Vana \u00dcreticisi<\/a>\n\n<\/div>\n\n\n\n\nS\u00fcrg\u00fcl\u00fc Vana Nedir?<\/a>\n\n<\/div>\n\n\n\n\n\u015eangay Bas\u0131n\u00e7 D\u00fc\u015f\u00fcr\u00fcc\u00fc Vana Fabrikas\u0131<\/a>\n\n<\/div>\n\n\n\n\nOtomatik Kontrol Vanalar\u0131 Nedir?<\/a>\n\n<\/div>\n\n\n\n\nK\u00fcresel Vana vs Glob Vana<\/a>\n\n<\/div>\n\n\n\n\n12 in\u00e7 S\u00fcrg\u00fcl\u00fc Vana Tedarik\u00e7isi<\/a>\n\n<\/div>\n\n\n\n\nK\u00fcresel Vana Yuvas\u0131 ve Kelebek Vana Yuvas\u0131 Olarak Termoplastik Malzemeler<\/a>\n\n<\/div>","protected":false},"excerpt":{"rendered":"Diyafram valfleri \u00e7o\u011fu durumda \u00f6nemli bir husus de\u011fildir. Ancak bir vana, sonraki s\u00fcre\u00e7lerde performans\u0131n\u0131z\u0131 art\u0131rabildi\u011finde... Daha fazla bilgi edinin<\/a><\/p>","protected":false},"author":2,"featured_media":13348,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","kt_blocks_editor_width":"","footnotes":""},"categories":[1],"tags":[2702,2704,2703,3205],"class_list":["post-3059","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-diaphragm-valve","tag-diaphragm-valve-diagram","tag-diaphragm-valve-function","tag-diaphragm-valve-manufacturers","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"featured_image_src_large":["https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/01\/20220105083122-61d5575ae65f4.jpg",924,1004,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":2702,"name":"Diaphragm Valve","slug":"diaphragm-valve","term_group":0,"term_taxonomy_id":2702,"taxonomy":"post_tag","description":"","parent":0,"count":3,"filter":"raw"},{"term_id":2704,"name":"diaphragm valve diagram","slug":"diaphragm-valve-diagram","term_group":0,"term_taxonomy_id":2704,"taxonomy":"post_tag","description":"","parent":0,"count":2,"filter":"raw"},{"term_id":2703,"name":"Diaphragm Valve Function","slug":"diaphragm-valve-function","term_group":0,"term_taxonomy_id":2703,"taxonomy":"post_tag","description":"\r\n\r\n\r\n\r\nGET DIAPHRAGM VALVE DIAGRAM INFORMATION<\/strong><\/a>\r\n\r\n\r\n\r\n\r\nWhat is a Diaphragm Valve?<\/h2>\r\n\r\n\r\n\r\n\r\nDiaphragm valves get their name from a flexible disc that comes into contact with a seat at the top of the valve body to form a seal. A diaphragm is a flexible, pressure-responsive element that transmits force to open, close, or control a valve. Diaphragm valves are related to pinch valves, but use an elastomeric diaphragm, instead of an elastomeric liner in the valve body, to separate the flow stream from the closure element.\r\n\r\n\r\n\r\n\r\n![\"\"](\"https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/07\/20220708083634-62c7ec92aba44.jpg\")
<\/figure>\r\n\r\n\r\n\r\nHow do Diaphragm Valves Work?<\/h2>\r\n\r\n\r\n\r\n\r\nDiaphragm valves are simple in construction and operation. A valve actuator is in contact with the inner membrane (or \u201cdiaphragm\u201d) of the valve in its open position. When the user desires the valve to be shut, the actuator is pressed and\/or turned and the membrane is pushed into the edge of the solid damn, closing the valve. Certain diaphragm valves can also have half open\/restricted positions where the membrane is partially closed, allowing a throttled flow through the valve. In the next section, we will examine the broad categories of diaphragm valves and where they are most useful.\r\n\r\n\r\n\r\n\r\nTypes of Diaphragm Valves<\/h2>\r\n\r\n\r\n\r\nWeir-Type Diaphragm Valves<\/h3>\r\n\r\n\r\n\r\n\r\nThe weir-type diaphragm valve is one of the most common designs available and is what is shown in Figure 2, above. The raised lip\/saddle design is best suited for small flow control and is kept leak-proof thanks to the bonnet over the diaphragm and actuator. This design is optimal for dangerous or corrosive liquid and gas, as any failure with the membrane will be kept contained by this bonnet. Also, the sloped body makes this valve inherently self-draining, but this draining can happen in both valve directions which may not be optimal for some applications. The weir-type valve is mostly specified for clean, homogenous fluids, as viscous slurries and sediments may build up on either side of the saddle. They are most often found in processes such as food\/chemical, gas production, corrosive, and water applications.\r\n\r\n\r\n\r\n\r\nStraight Through Type Diaphragm Valves<\/h3>\r\n\r\n\r\n\r\n\r\nThe straight-through diaphragm valve is structurally similar to weir-types; however, it does not contain the characteristic saddle and instead has a completely straight pathway. Their membranes are typically more flexible and allow for farther travel distance, as it must touch the very bottom of the valve. These valves must often be serviced\/replaced, as their lifespan is typically less than weir-type designs due to their more flexible membranes. Straight-through diaphragm valves are used for slurries, viscous fluids, and other applications where blocking must be reduced. They are also useful for bi-directional flow regimes, as there is no saddle to impede swift changing from inlet to outlet.\r\n\r\n\r\n\r\n\r\nDiaphragm Valve Parts<\/h2>\r\n\r\n\r\n\r\n\r\nThe components of diaphragm valves are the following:\r\n\r\n\r\n\r\n\r\nDiaphragm Valve Bonnet<\/h3>\r\n\r\n\r\n\r\n\r\nThe bonnet serves as the top cover and is bolted to the valve body. It protects the compressor, stem, diaphragm, and other non-wetted components of the diaphragm valve.\r\n\r\n\r\n\r\n\r\nDiaphragm Valve Body<\/h3>\r\n\r\n\r\n\r\n\r\nThe valve body is the component directly connected to the pipeline wherein the fluid passes. The flow area inside the valve body depends on the type of diaphragm valve.\r\n\r\n\r\n\r\n\r\n\r\nBoth the valve body and bonnet are constructed from strong, rigid, and corrosive resistant materials.\r\n\r\n\r\n\r\n\r\nDiaphragm Valve Diaphragm<\/h3>\r\n\r\n\r\n\r\n\r\nThe diaphragm is made from a highly elastic polymeric disc that moves down to touch the bottom of the valve body to limit or obstruct the passage of fluid. The diaphragm lifts if the fluid flow rate is to be increased or the valve is to be fully opened. The fluid flows underneath the diaphragm. However, this component limits the valve\u2019s operating temperature and pressure due to the diaphragm\u2019s material and structure. It must also be replaced periodically since its mechanical properties degrade during usage.\r\n\r\n\r\n\r\n\r\n\r\nThe diaphragm isolates the non-wetted components (compressor, stem, and actuator) from the flowing media. Therefore, solids and viscous fluids are less likely to interfere with the operating mechanism of the diaphragm valve. This also protects the non-wetted components from corrosion. Conversely, the fluid in the pipeline will not be contaminated with the lubricant used in operating the valve.\r\n\r\n\r\n\r\n\r\nMaterial of Diaphragm Valve Diaphragm<\/h4>\r\n\r\n\r\n\r\n\r\nUnlined or Rubber Lined Type<\/strong>\r\n\r\n\r\n\r\n\r\n\r\n \t- NR\/Natural Rubber<\/li>\r\n \t
- NBR\/Nitrile\/Buna-N<\/li>\r\n \t
- EPDM<\/li>\r\n \t
- FKM\/Viton<\/li>\r\n \t
- BUNA-N<\/li>\r\n \t
- SI\/Silicone rubber<\/li>\r\n \t
- Leather<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n\r\nFluorine Plastic Type<\/strong>\r\n\r\n\r\n\r\n\r\n
\r\n \t- FEP, with EPDM backing<\/li>\r\n \t
- PTFE, with EPDM backing<\/li>\r\n \t
- PFA, with EPDM backing<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
Diaphragm Valve Compressor<\/h3>\r\n\r\n\r\n\r\n\r\nThe compressor is a disc that lies between the valve stem and the diaphragm. It supports the diaphragm valve and distributes the forces from the stem during linear movement. The compressor design is optimized to provide better flow throttling and control.\r\n\r\n\r\n\r\n\r\nDiaphragm Valve Stem<\/h3>\r\n\r\n\r\n\r\n\r\nThe stem is a vertical shaft connected to the compressor that exerts linear motion to move both compressor and diaphragm, thus operating the diaphragm valve. It transmits the motion exerted by the actuator. Diaphragm valves can either have piston- or threaded-type stems. As the name implies, piston-type valves are moved by a piston assembly inside the bonnet, with the valve stem likely acting as the piston rod. This type requires linear force exerted by fluid pressure. Threaded stem valves have a matching stem nut. This type requires torque to linearly move the stem, as well as lubrication for smooth motion.\r\n\r\n\r\n\r\n\r\n\r\nThe threaded stems of diaphragm valves can have a rising or non-rising mechanism:\r\n\r\n\r\n\r\n\r\n\r\n \t- Rising Stem<\/strong>: Rising stems or indicating stems extend their length up to the handwheel. As the handwheel is turned, the stem rises or descends to open or close the valve, respectively. Hence, it is easier to determine the extent to which the valve is opened by looking at the amount of stem exposed. However, rising stems take up more space than non-rising stems.<\/li>\r\n \t
- Non-Rising Stem:<\/strong> Non-rising stems or non-indicating stems are rotated to open or close the valve, but it does not cause the stem to move up or down. Non-rising stem valves are used in limited spaces, such as in underground piping systems.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
Advantages and Disadvantages of Diaphragm Valves<\/h2>\r\n\r\n\r\n\r\n\r\n
- Savak tipi diyaframl\u0131 vana mevcut en yayg\u0131n tasar\u0131mlardan biridir ve yukar\u0131daki \u015eekil 2'de g\u00f6sterilmektedir. Y\u00fckseltilmi\u015f dudak\/yer tasar\u0131m\u0131, k\u00fc\u00e7\u00fck ak\u0131\u015f kontrol\u00fc i\u00e7in en uygunudur ve diyafram ve akt\u00fcat\u00f6r \u00fczerindeki kapak sayesinde s\u0131zd\u0131rmaz tutulur. Bu tasar\u0131m, tehlikeli veya a\u015f\u0131nd\u0131r\u0131c\u0131 s\u0131v\u0131 ve gaz i\u00e7in idealdir \u00e7\u00fcnk\u00fc membrandaki herhangi bir ar\u0131za bu kapak taraf\u0131ndan muhafaza edilecektir. Ayr\u0131ca e\u011fimli g\u00f6vde, bu valfin do\u011fas\u0131 gere\u011fi kendi kendini bo\u015faltmas\u0131n\u0131 sa\u011flar, ancak bu bo\u015faltma her iki valf y\u00f6n\u00fcnde de ger\u00e7ekle\u015febilir ve bu da baz\u0131 uygulamalar i\u00e7in ideal olmayabilir. Savak tipi vana \u00e7o\u011funlukla temiz, homojen ak\u0131\u015fkanlar i\u00e7in tasarlanm\u0131\u015ft\u0131r, \u00e7\u00fcnk\u00fc viskoz \u00e7amurlar ve \u00e7\u00f6keltiler semerin her iki taraf\u0131nda da birikebilir. \u00c7o\u011funlukla g\u0131da\/kimyasal, gaz \u00fcretimi, a\u015f\u0131nd\u0131r\u0131c\u0131 ve su uygulamalar\u0131 gibi i\u015flemlerde bulunurlar.<\/li><\/ul><\/li>
- D\u00fcz ge\u00e7i\u015fli tip diyaframl\u0131 vanalar<\/strong>
- D\u00fcz diyaframl\u0131 vana yap\u0131sal olarak savak tiplerine benzer; ancak karakteristik eyeri i\u00e7ermez ve bunun yerine tamamen d\u00fcz bir yola sahiptir. Membranlar\u0131 tipik olarak daha esnektir ve valfin en alt\u0131na temas etmesi gerekti\u011finden daha uzak hareket mesafesine izin verir. Daha esnek membranlar\u0131 nedeniyle \u00f6m\u00fcrleri savak tipi tasar\u0131mlardan daha k\u0131sa oldu\u011fundan, bu vanalar\u0131n s\u0131kl\u0131kla servise verilmesi\/de\u011fi\u015ftirilmesi gerekir. D\u00fcz diyaframl\u0131 valfler \u00e7amurlar, viskoz s\u0131v\u0131lar ve t\u0131kanman\u0131n azalt\u0131lmas\u0131 gereken di\u011fer uygulamalar i\u00e7in kullan\u0131l\u0131r. Giri\u015ften \u00e7\u0131k\u0131\u015fa h\u0131zl\u0131 ge\u00e7i\u015fi engelleyecek bir eyer bulunmad\u0131\u011f\u0131ndan \u00e7ift y\u00f6nl\u00fc ak\u0131\u015f rejimleri i\u00e7in de kullan\u0131\u015fl\u0131d\u0131rlar.<\/li><\/ul><\/li><\/ul>\n\n\n\n
Diyaframl\u0131 vanalar\u0131n avantajlar\u0131?<\/h2>\n\n\n\n
- Diyaframl\u0131 vanalar k\u0131sma hizmeti i\u00e7in de kullan\u0131labilir.<\/li>
- K\u0131sma \u00f6zellikleri, koltuk boyunca geni\u015f kapatma alan\u0131 nedeniyle esasen h\u0131zl\u0131 a\u00e7\u0131lan bir valfin \u00f6zellikleridir.<\/li>
- K\u00fc\u00e7\u00fck ak\u0131\u015flar\u0131 kontrol etmek i\u00e7in savak tipi diyaframl\u0131 vana mevcuttur.<\/li>
- Diyafram valfleri \u00f6zellikle a\u015f\u0131nd\u0131r\u0131c\u0131 s\u0131v\u0131lar\u0131n, lifli bulama\u00e7lar\u0131n, radyoaktif s\u0131v\u0131lar\u0131n veya kirlenmemesi gereken di\u011fer s\u0131v\u0131lar\u0131n ta\u015f\u0131nmas\u0131 i\u00e7in uygundur.<\/li>
- Diyaframl\u0131 vanan\u0131n \u00e7al\u0131\u015fma mekanizmas\u0131 boru hatt\u0131 i\u00e7indeki ortama maruz kalmaz. Yap\u0131\u015fkan veya viskoz s\u0131v\u0131lar kaputun i\u00e7ine girerek \u00e7al\u0131\u015fma mekanizmas\u0131n\u0131 etkileyemez.<\/li>
- Di\u011fer valf t\u00fcrlerinin \u00e7o\u011funun \u00e7al\u0131\u015fma par\u00e7alar\u0131n\u0131 t\u0131kayan, a\u015f\u0131nd\u0131ran veya yap\u0131\u015fan bir\u00e7ok s\u0131v\u0131, sorun yaratmadan diyafram valfinden ge\u00e7ecektir. Bunun aksine, \u00e7al\u0131\u015ft\u0131rma mekanizmas\u0131 i\u00e7in kullan\u0131lan ya\u011flay\u0131c\u0131lar\u0131n, kullan\u0131lan ak\u0131\u015fkan\u0131 kirletmesine izin verilemez.<\/li>
- Bak\u0131m\u0131 gereken salmastra salmastralar\u0131 yoktur ve vanalarda mil s\u0131z\u0131nt\u0131s\u0131 olas\u0131l\u0131\u011f\u0131 yoktur.<\/li><\/ul>\n\n\n\n\n
\u0130lgili Etiketler :<\/h2>\n\n\n\n\n
\nZECO Valf<\/a>\n\n<\/div>\n\n\n\n\nS\u00fcrg\u00fcl\u00fc Vana ve Kelebek Vana Aras\u0131ndaki Fark<\/a>\n\n<\/div>\n\n\n\n\nGlob Vanalar Nedir?<\/a>\n\n<\/div>\n\n\n\n\nManuel Kumandal\u0131 S\u00fcrg\u00fcl\u00fc Vana \u00dcreticisi<\/a>\n\n<\/div>\n\n\n\n\nS\u00fcrg\u00fcl\u00fc Vana Nedir?<\/a>\n\n<\/div>\n\n\n\n\n\u015eangay Bas\u0131n\u00e7 D\u00fc\u015f\u00fcr\u00fcc\u00fc Vana Fabrikas\u0131<\/a>\n\n<\/div>\n\n\n\n\nOtomatik Kontrol Vanalar\u0131 Nedir?<\/a>\n\n<\/div>\n\n\n\n\nK\u00fcresel Vana vs Glob Vana<\/a>\n\n<\/div>\n\n\n\n\n12 in\u00e7 S\u00fcrg\u00fcl\u00fc Vana Tedarik\u00e7isi<\/a>\n\n<\/div>\n\n\n\n\nK\u00fcresel Vana Yuvas\u0131 ve Kelebek Vana Yuvas\u0131 Olarak Termoplastik Malzemeler<\/a>\n\n<\/div>","protected":false},"excerpt":{"rendered":"Diyafram valfleri \u00e7o\u011fu durumda \u00f6nemli bir husus de\u011fildir. Ancak bir vana, sonraki s\u00fcre\u00e7lerde performans\u0131n\u0131z\u0131 art\u0131rabildi\u011finde... Daha fazla bilgi edinin<\/a><\/p>","protected":false},"author":2,"featured_media":13348,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_generate-full-width-content":"","kt_blocks_editor_width":"","footnotes":""},"categories":[1],"tags":[2702,2704,2703,3205],"class_list":["post-3059","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized","tag-diaphragm-valve","tag-diaphragm-valve-diagram","tag-diaphragm-valve-function","tag-diaphragm-valve-manufacturers","generate-columns","tablet-grid-50","mobile-grid-100","grid-parent","grid-50"],"featured_image_src_large":["https:\/\/zecovalve.com\/wp-content\/uploads\/2022\/01\/20220105083122-61d5575ae65f4.jpg",924,1004,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":2702,"name":"Diaphragm Valve","slug":"diaphragm-valve","term_group":0,"term_taxonomy_id":2702,"taxonomy":"post_tag","description":"","parent":0,"count":3,"filter":"raw"},{"term_id":2704,"name":"diaphragm valve diagram","slug":"diaphragm-valve-diagram","term_group":0,"term_taxonomy_id":2704,"taxonomy":"post_tag","description":"","parent":0,"count":2,"filter":"raw"},{"term_id":2703,"name":"Diaphragm Valve Function","slug":"diaphragm-valve-function","term_group":0,"term_taxonomy_id":2703,"taxonomy":"post_tag","description":"\r\n\r\n\r\n\r\nGET DIAPHRAGM VALVE DIAGRAM INFORMATION<\/strong><\/a>\r\n\r\n\r\n\r\n\r\n
What is a Diaphragm Valve?<\/h2>\r\n\r\n\r\n\r\n\r\nDiaphragm valves get their name from a flexible disc that comes into contact with a seat at the top of the valve body to form a seal. A diaphragm is a flexible, pressure-responsive element that transmits force to open, close, or control a valve. Diaphragm valves are related to pinch valves, but use an elastomeric diaphragm, instead of an elastomeric liner in the valve body, to separate the flow stream from the closure element.\r\n\r\n\r\n\r\n\r\n
<\/figure>\r\n\r\n\r\n\r\nHow do Diaphragm Valves Work?<\/h2>\r\n\r\n\r\n\r\n\r\nDiaphragm valves are simple in construction and operation. A valve actuator is in contact with the inner membrane (or \u201cdiaphragm\u201d) of the valve in its open position. When the user desires the valve to be shut, the actuator is pressed and\/or turned and the membrane is pushed into the edge of the solid damn, closing the valve. Certain diaphragm valves can also have half open\/restricted positions where the membrane is partially closed, allowing a throttled flow through the valve. In the next section, we will examine the broad categories of diaphragm valves and where they are most useful.\r\n\r\n\r\n\r\n\r\n
Types of Diaphragm Valves<\/h2>\r\n\r\n\r\n\r\n
Weir-Type Diaphragm Valves<\/h3>\r\n\r\n\r\n\r\n\r\nThe weir-type diaphragm valve is one of the most common designs available and is what is shown in Figure 2, above. The raised lip\/saddle design is best suited for small flow control and is kept leak-proof thanks to the bonnet over the diaphragm and actuator. This design is optimal for dangerous or corrosive liquid and gas, as any failure with the membrane will be kept contained by this bonnet. Also, the sloped body makes this valve inherently self-draining, but this draining can happen in both valve directions which may not be optimal for some applications. The weir-type valve is mostly specified for clean, homogenous fluids, as viscous slurries and sediments may build up on either side of the saddle. They are most often found in processes such as food\/chemical, gas production, corrosive, and water applications.\r\n\r\n\r\n\r\n\r\n
Straight Through Type Diaphragm Valves<\/h3>\r\n\r\n\r\n\r\n\r\nThe straight-through diaphragm valve is structurally similar to weir-types; however, it does not contain the characteristic saddle and instead has a completely straight pathway. Their membranes are typically more flexible and allow for farther travel distance, as it must touch the very bottom of the valve. These valves must often be serviced\/replaced, as their lifespan is typically less than weir-type designs due to their more flexible membranes. Straight-through diaphragm valves are used for slurries, viscous fluids, and other applications where blocking must be reduced. They are also useful for bi-directional flow regimes, as there is no saddle to impede swift changing from inlet to outlet.\r\n\r\n\r\n\r\n\r\n
Diaphragm Valve Parts<\/h2>\r\n\r\n\r\n\r\n\r\nThe components of diaphragm valves are the following:\r\n\r\n\r\n\r\n\r\n
Diaphragm Valve Bonnet<\/h3>\r\n\r\n\r\n\r\n\r\nThe bonnet serves as the top cover and is bolted to the valve body. It protects the compressor, stem, diaphragm, and other non-wetted components of the diaphragm valve.\r\n\r\n\r\n\r\n\r\n
Diaphragm Valve Body<\/h3>\r\n\r\n\r\n\r\n\r\nThe valve body is the component directly connected to the pipeline wherein the fluid passes. The flow area inside the valve body depends on the type of diaphragm valve.\r\n\r\n\r\n\r\n\r\n\r\nBoth the valve body and bonnet are constructed from strong, rigid, and corrosive resistant materials.\r\n\r\n\r\n\r\n\r\n
Diaphragm Valve Diaphragm<\/h3>\r\n\r\n\r\n\r\n\r\nThe diaphragm is made from a highly elastic polymeric disc that moves down to touch the bottom of the valve body to limit or obstruct the passage of fluid. The diaphragm lifts if the fluid flow rate is to be increased or the valve is to be fully opened. The fluid flows underneath the diaphragm. However, this component limits the valve\u2019s operating temperature and pressure due to the diaphragm\u2019s material and structure. It must also be replaced periodically since its mechanical properties degrade during usage.\r\n\r\n\r\n\r\n\r\n\r\nThe diaphragm isolates the non-wetted components (compressor, stem, and actuator) from the flowing media. Therefore, solids and viscous fluids are less likely to interfere with the operating mechanism of the diaphragm valve. This also protects the non-wetted components from corrosion. Conversely, the fluid in the pipeline will not be contaminated with the lubricant used in operating the valve.\r\n\r\n\r\n\r\n\r\n
Material of Diaphragm Valve Diaphragm<\/h4>\r\n\r\n\r\n\r\n\r\nUnlined or Rubber Lined Type<\/strong>\r\n\r\n\r\n\r\n\r\n
- \r\n \t
- NR\/Natural Rubber<\/li>\r\n \t
- NBR\/Nitrile\/Buna-N<\/li>\r\n \t
- EPDM<\/li>\r\n \t
- FKM\/Viton<\/li>\r\n \t
- BUNA-N<\/li>\r\n \t
- SI\/Silicone rubber<\/li>\r\n \t
- Leather<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n\r\nFluorine Plastic Type<\/strong>\r\n\r\n\r\n\r\n\r\n
- \r\n \t
- FEP, with EPDM backing<\/li>\r\n \t
- PTFE, with EPDM backing<\/li>\r\n \t
- PFA, with EPDM backing<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
Diaphragm Valve Compressor<\/h3>\r\n\r\n\r\n\r\n\r\nThe compressor is a disc that lies between the valve stem and the diaphragm. It supports the diaphragm valve and distributes the forces from the stem during linear movement. The compressor design is optimized to provide better flow throttling and control.\r\n\r\n\r\n\r\n\r\n
Diaphragm Valve Stem<\/h3>\r\n\r\n\r\n\r\n\r\nThe stem is a vertical shaft connected to the compressor that exerts linear motion to move both compressor and diaphragm, thus operating the diaphragm valve. It transmits the motion exerted by the actuator. Diaphragm valves can either have piston- or threaded-type stems. As the name implies, piston-type valves are moved by a piston assembly inside the bonnet, with the valve stem likely acting as the piston rod. This type requires linear force exerted by fluid pressure. Threaded stem valves have a matching stem nut. This type requires torque to linearly move the stem, as well as lubrication for smooth motion.\r\n\r\n\r\n\r\n\r\n\r\nThe threaded stems of diaphragm valves can have a rising or non-rising mechanism:\r\n\r\n\r\n\r\n\r\n
- \r\n \t
- Rising Stem<\/strong>: Rising stems or indicating stems extend their length up to the handwheel. As the handwheel is turned, the stem rises or descends to open or close the valve, respectively. Hence, it is easier to determine the extent to which the valve is opened by looking at the amount of stem exposed. However, rising stems take up more space than non-rising stems.<\/li>\r\n \t
- Non-Rising Stem:<\/strong> Non-rising stems or non-indicating stems are rotated to open or close the valve, but it does not cause the stem to move up or down. Non-rising stem valves are used in limited spaces, such as in underground piping systems.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
Advantages and Disadvantages of Diaphragm Valves<\/h2>\r\n\r\n\r\n\r\n
\r\n - Non-Rising Stem:<\/strong> Non-rising stems or non-indicating stems are rotated to open or close the valve, but it does not cause the stem to move up or down. Non-rising stem valves are used in limited spaces, such as in underground piping systems.<\/li>\r\n<\/ul>\r\n\r\n\r\n\r\n
- Rising Stem<\/strong>: Rising stems or indicating stems extend their length up to the handwheel. As the handwheel is turned, the stem rises or descends to open or close the valve, respectively. Hence, it is easier to determine the extent to which the valve is opened by looking at the amount of stem exposed. However, rising stems take up more space than non-rising stems.<\/li>\r\n \t
- D\u00fcz diyaframl\u0131 vana yap\u0131sal olarak savak tiplerine benzer; ancak karakteristik eyeri i\u00e7ermez ve bunun yerine tamamen d\u00fcz bir yola sahiptir. Membranlar\u0131 tipik olarak daha esnektir ve valfin en alt\u0131na temas etmesi gerekti\u011finden daha uzak hareket mesafesine izin verir. Daha esnek membranlar\u0131 nedeniyle \u00f6m\u00fcrleri savak tipi tasar\u0131mlardan daha k\u0131sa oldu\u011fundan, bu vanalar\u0131n s\u0131kl\u0131kla servise verilmesi\/de\u011fi\u015ftirilmesi gerekir. D\u00fcz diyaframl\u0131 valfler \u00e7amurlar, viskoz s\u0131v\u0131lar ve t\u0131kanman\u0131n azalt\u0131lmas\u0131 gereken di\u011fer uygulamalar i\u00e7in kullan\u0131l\u0131r. Giri\u015ften \u00e7\u0131k\u0131\u015fa h\u0131zl\u0131 ge\u00e7i\u015fi engelleyecek bir eyer bulunmad\u0131\u011f\u0131ndan \u00e7ift y\u00f6nl\u00fc ak\u0131\u015f rejimleri i\u00e7in de kullan\u0131\u015fl\u0131d\u0131rlar.<\/li><\/ul><\/li><\/ul>\n\n\n\n