{"id":1884,"count":8,"description":"\r\n\r\n\r\n\r\nS\u00dcRG\u00dcL\u00dc VANA W\u0130K\u0130PED\u0130A B\u0130LG\u0130LER\u0130N\u0130 ALIN<\/strong><\/a>\r\n\r\n\r\n\r\n\r\n

S\u00fcrg\u00fcl\u00fc Vanalar\u0131n Yap\u0131m\u0131<\/h2>\r\n\r\n\r\n\r\n\r\nCommon gate valves are actuated by a threaded stem that connects the actuator (e.g. handwheel or motor) to the gate. They are characterized as having either a rising or a non-rising stem, depending on which end of the stem is threaded. Rising stems are fixed to the gate and rise and lower together as the valve is operated, providing a visual indication of valve position. The actuator is attached to a nut that is rotated around the threaded stem to move it. Non rising stem valves are fixed to, and rotate with, the actuator, and are threaded into the gate. They may have a pointer threaded onto the stem to indicate valve position since the gate's motion is concealed inside the valve. Non rising stems are used where vertical space is limited.\r\n\r\n\r\n\r\n\r\n\r\nS\u00fcrg\u00fcl\u00fc vanalar manuel olarak (el \u00e7ark\u0131) veya y\u00fcksek torklu bir motor kullan\u0131larak elektrikle \u00e7al\u0131\u015ft\u0131r\u0131labilir.\r\n\r\n\r\n\r\n\r\n\r\nS\u00fcrg\u00fcl\u00fc kap\u0131 (disk) kama \u015feklinde (konik) veya paralel \u015fekilli olabilir. Kama \u015fekli tasar\u0131mlar\u0131 sa\u011flam, esnek ve b\u00f6l\u00fcnm\u00fc\u015f kama tasar\u0131mlar\u0131n\u0131 i\u00e7erir.\r\n\r\n\r\n\r\n\r\n\r\nA\u015f\u0131nm\u0131\u015f\/s\u0131zd\u0131ran koltu\u011fun de\u011fi\u015ftirilmesini kolayla\u015ft\u0131rmak i\u00e7in oturma halkalar\u0131 kullan\u0131l\u0131r. Yuva halkalar\u0131n\u0131n arka taraf\u0131nda ana valf g\u00f6vdesine vidalanabilen bir vida di\u015fi bulunur, kar\u015f\u0131 taraftaki d\u00fcz y\u00fczey ise diske bask\u0131 yapan oturma y\u00fczeyi alan\u0131d\u0131r. Yuva halkalar\u0131 kullan\u0131lmazsa, ana valf g\u00f6vdesi \u00fczerinde d\u00fcz bir yuvan\u0131n i\u015flenmesi m\u00fcmk\u00fcnd\u00fcr; ne yaz\u0131k ki bu, yuvan\u0131n de\u011fi\u015ftirilmesini imkans\u0131z hale getirir ve t\u00fcm valfin de\u011fi\u015ftirilmesi gerekmeden \u00f6nce yuva yaln\u0131zca birka\u00e7 kez i\u015flenebilir.\r\n\r\n\r\n\r\n\r\n\r\nS\u00fcrg\u00fcl\u00fc vana kapaklar\u0131 genellikle d\u00f6kme demirden yap\u0131l\u0131r. D\u00f6kme demir k\u0131r\u0131lgand\u0131r ve bu da kaputun \u00e7atlamaya yatk\u0131n olmas\u0131na neden olur. D\u00f6kme demir kapakl\u0131 vanalar\u0131n ta\u015f\u0131nmas\u0131 ve bak\u0131m\u0131 yap\u0131l\u0131rken \u00f6zel dikkat g\u00f6sterilmelidir.\r\n\r\n\r\n\r\n\r\n\r\nMil valf kapa\u011f\u0131ndan ge\u00e7erken, mil ile kapak aras\u0131ndaki bo\u015fluktan s\u0131z\u0131nt\u0131 olu\u015fmas\u0131n\u0131 \u00f6nlemek i\u00e7in bir s\u0131zd\u0131rmazl\u0131k contas\u0131n\u0131n tak\u0131lmas\u0131 gerekir; S\u0131zd\u0131rmazl\u0131k genellikle lifli ambalaj malzemesi kullan\u0131larak sa\u011flan\u0131r.\r\n\r\n\r\n\r\n\r\n\r\nBorular\u0131n kolayca ba\u011flanabilmesi i\u00e7in vanan\u0131n emme ve basma taraf\u0131na flan\u015flar tak\u0131lm\u0131\u015ft\u0131r.\r\n\r\n\r\n\r\n\r\n

S\u00fcrg\u00fcl\u00fc Vana \u00c7e\u015fitleri<\/h2>\r\n\r\n\r\n\r\n\r\nKap\u0131, farkl\u0131 uygulamalar i\u00e7in etkili s\u0131zd\u0131rmazl\u0131k sa\u011flamak \u00fczere \u00e7e\u015fitli tasar\u0131m ve teknolojilerle sunulmaktad\u0131r.\r\n\r\n\r\n\r\n\r\n\r\nB\u0131\u00e7ak s\u00fcrg\u00fcl\u00fc vana\r\n\r\n\r\n\r\n\r\n\r\nKal\u0131n s\u0131v\u0131lar ve kuru d\u00f6kme kat\u0131lar i\u00e7in b\u0131\u00e7akl\u0131 s\u00fcrg\u00fcl\u00fc vana kullan\u0131l\u0131r. Kap\u0131, genellikle bir b\u0131\u00e7ak gibi sivrilen tek bir metal par\u00e7as\u0131ndan olu\u015fur. Bu valfler her a\u00e7\u0131l\u0131p kapand\u0131klar\u0131nda yuva halkalar\u0131ndan ge\u00e7tikleri i\u00e7in kendi kendini temizleme \u00f6zelli\u011fine sahiptir.\r\n\r\n\r\n\r\n\r\n

Kama S\u00fcrg\u00fcl\u00fc Vana<\/h3>\r\n\r\n\r\n\r\n\r\nA wedge gate valve has a gate in the shape of a wedge that sits on two inclined seats. In addition to the primary force created by fluid pressure, a high wedging force on the seats created by the stem tightening assists with the sealing. The wedge-shaped gate does not stick to the seat in case of high fluid differential pressure and has an increased service life due to less \"rubbing\" on the seats. However, wedge-shaped gate valves have an additional compression load on the seats that may result in thermal binding and restricted valve opening due to expansion.\r\n\r\n\r\n\r\n\r\n

Paralel S\u00fcrg\u00fcl\u00fc S\u00fcrg\u00fcl\u00fc Vana<\/h3>\r\n\r\n\r\n\r\n\r\nParalel s\u00fcrg\u00fcl\u00fc vanan\u0131n d\u00fcz bir kap\u0131s\u0131 vard\u0131r ve buna paralel yuvalar vard\u0131r. Paralel s\u00fcrg\u00fcl\u00fc s\u00fcrg\u00fcl\u00fc vanalar, s\u0131k\u0131 bir s\u0131zd\u0131rmazl\u0131k sa\u011flamak i\u00e7in hat bas\u0131nc\u0131n\u0131 ve konumland\u0131rmay\u0131 kullan\u0131r. D\u00fcz kap\u0131lar iki par\u00e7adan olu\u015fmakta olup ortas\u0131nda yay bulunmaktad\u0131r. Yay, daha iyi s\u0131zd\u0131rmazl\u0131k sa\u011flamak i\u00e7in par\u00e7alar\u0131 koltuklara do\u011fru iter. Do\u011fal tasar\u0131mlar\u0131 nedeniyle paralel s\u00fcrg\u00fcl\u00fc vanalar, y\u00fcksek s\u0131cakl\u0131k uygulamalar\u0131nda g\u00fcvenlik avantaj\u0131na sahiptir. Ayr\u0131ca, paralel kap\u0131larda herhangi bir s\u0131k\u0131\u015ft\u0131rma hareketi olmad\u0131\u011f\u0131ndan kapatma torklar\u0131 nispeten daha k\u00fc\u00e7\u00fckt\u00fcr, bu da daha k\u00fc\u00e7\u00fck, daha ucuz akt\u00fcat\u00f6rlere veya daha az manuel \u00e7abaya neden olur. Paralel kap\u0131lar, kayarak pozisyon almalar\u0131 nedeniyle kiri oturma y\u00fczeylerinden uzak tutar.\r\n\r\n\r\n\r\n\r\n

Slab S\u00fcrg\u00fcl\u00fc Vana<\/h3>\r\n\r\n\r\n\r\n\r\nBoru ge\u00e7i\u015fli valfler olarak da adland\u0131r\u0131lan d\u00f6\u015feme kapaklar\u0131, delik boyutunda bir delik i\u00e7eren tek \u00fcniteli kapaklard\u0131r. Delik a\u00e7\u0131k durumda iki yatakl\u0131 halkalarla ayn\u0131 hizadad\u0131r. Bu hizalama minimum t\u00fcrb\u00fclansla d\u00fczg\u00fcn bir ak\u0131\u015f yarat\u0131r. Bu benzersiz tasar\u0131m, sistemde minimum bas\u0131n\u00e7 kayb\u0131na olanak tan\u0131r ve ham petrol ve do\u011fal gaz s\u0131v\u0131lar\u0131n\u0131n (NGL'ler) ta\u015f\u0131nmas\u0131 i\u00e7in m\u00fckemmeldir. Valf yuvalar\u0131 temiz kal\u0131r. Ancak disk bo\u015flu\u011fu yabanc\u0131 maddeleri yakalayabilir. Bu nedenle, bo\u015flukta tipik olarak, biriken yabanc\u0131 maddenin bo\u015falt\u0131lmas\u0131na y\u00f6nelik bak\u0131m amac\u0131yla yerle\u015fik bir t\u0131ka\u00e7 bulunur.\r\n\r\n\r\n\r\n\r\n

Paralel Geni\u015fleyen S\u00fcrg\u00fcl\u00fc Vana<\/h3>\r\n\r\n\r\n\r\n\r\nExpanding gate valves have two slab gates matched together that provide sealing through the mechanical expansion of the gate, as seen in Figure 5. When lifted, both of the slab gate's cavities allow the media to flow. The upward force on one slab and the stoppage of the second slab, by a step in the valve body, allows for outward mechanical expansion for a proper seal. When closed, the slab gates block the media flow, and the downward force (stem) on one slab and upward force (step in valve body) allows for outward mechanical expansion for a proper seal.\r\n\r\n\r\n\r\n\r\n\r\nBu valfler hem yukar\u0131 hem de a\u015fa\u011f\u0131 y\u00f6ndeki koltuklar i\u00e7in ayn\u0131 anda etkili bir s\u0131zd\u0131rmazl\u0131k sa\u011flar. Bu conta, onlar\u0131 enerji santrallerindeki izolasyon vanalar\u0131, proses sistemlerindeki blok vanalar ve rafinerilerdeki y\u00fcksek s\u0131cakl\u0131k vanalar\u0131 gibi uygulamalar i\u00e7in ideal k\u0131lar.\r\n\r\n\r\n\r\n\r\n

Metal Oturmal\u0131 ve Esnek Oturmal\u0131 S\u00fcrg\u00fcl\u00fc Vanalar<\/h2>\r\n\r\n\r\n\r\n\r\nEsnek oturmal\u0131 s\u00fcrg\u00fcl\u00fc vana pazara sunulmadan \u00f6nce, metal oturmal\u0131 kamal\u0131 s\u00fcrg\u00fcl\u00fc vanalar yayg\u0131n olarak kullan\u0131l\u0131yordu. Metal yatakl\u0131 kaman\u0131n konik kama tasar\u0131m\u0131 ve a\u00e7\u0131l\u0131 s\u0131zd\u0131rmazl\u0131k cihazlar\u0131, s\u0131k\u0131 bir kapanma sa\u011flamak i\u00e7in valf taban\u0131nda bir \u00e7\u00f6k\u00fcnt\u00fc gerektirir. B\u00f6ylece deli\u011fin i\u00e7erisine kum ve \u00e7ak\u0131llar g\u00f6m\u00fcl\u00fcr. Boru sistemi, kurulum veya onar\u0131m s\u0131ras\u0131nda borunun ne kadar iyice y\u0131kand\u0131\u011f\u0131na bak\u0131lmaks\u0131z\u0131n hi\u00e7bir zaman yabanc\u0131 maddelerden tamamen ar\u0131nd\u0131r\u0131lmayacakt\u0131r. Bu nedenle, herhangi bir metal takoz eninde sonunda d\u00fc\u015fmeye kar\u015f\u0131 dayan\u0131kl\u0131 olma \u00f6zelli\u011fini kaybedecektir.\r\n\r\n\r\n\r\n\r\n\r\nEsnek oturmal\u0131 s\u00fcrg\u00fcl\u00fc vana, kum ve \u00e7ak\u0131llar\u0131n vana i\u00e7inde serbest ge\u00e7i\u015fine izin veren d\u00fcz bir vana taban\u0131na sahiptir. Valf kapan\u0131rken yabanc\u0131 maddeler ge\u00e7erse, valf kapal\u0131yken kau\u00e7uk y\u00fczey yabanc\u0131 maddelerin etraf\u0131n\u0131 kapatacakt\u0131r. Y\u00fcksek kaliteli kau\u00e7uk bile\u015fi\u011fi, valf kapand\u0131\u011f\u0131nda yabanc\u0131 maddeleri emer ve valf tekrar a\u00e7\u0131ld\u0131\u011f\u0131nda yabanc\u0131 maddeler temizlenerek giderilir. Kau\u00e7uk y\u00fczey, s\u0131k\u0131 bir s\u0131zd\u0131rmazl\u0131k sa\u011flayarak orijinal \u015feklini geri kazanacakt\u0131r.\r\n\r\n\r\n\r\n\r\n\r\nS\u00fcrg\u00fcl\u00fc vanalar\u0131n b\u00fcy\u00fck \u00e7o\u011funlu\u011fu esnek yatakl\u0131d\u0131r, ancak baz\u0131 pazarlarda metal yatakl\u0131 s\u00fcrg\u00fcl\u00fc vanalar hala talep edilmektedir, dolay\u0131s\u0131yla su temini ve at\u0131k su ar\u0131t\u0131m\u0131 \u00fcr\u00fcn yelpazemizin bir par\u00e7as\u0131d\u0131rlar.\r\n\r\n","link":"https:\/\/zecovalve.com\/tr\/tag\/gate-valve-wikipedia","name":"S\u00fcrg\u00fcl\u00fc Vana Vikipedi","slug":"gate-valve-wikipedia","taxonomy":"post_tag","meta":[],"yoast_head":"\nGate Valve Wikipedia - Gate Valve Suppliers | ZECO Valve<\/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\/tag\/gate-valve-wikipedia\" \/>\n<meta property=\"og:locale\" content=\"tr_TR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Gate Valve Wikipedia - Gate Valve Suppliers | ZECO Valve\" \/>\n<meta property=\"og:description\" content=\"GET GATE VALVE WIKIPEDIA INFORMATION Construction of Gate Valves Common gate valves are actuated by a threaded stem that connects the actuator (e.g. handwheel or motor) to the gate. They are characterized as having either a rising or a non-rising stem, depending on which end of the stem is threaded. Rising stems are fixed to the gate and rise and lower together as the valve is operated, providing a visual indication of valve position. The actuator is attached to a nut that is rotated around the threaded stem to move it. Non rising stem valves are fixed to, and rotate with, the actuator, and are threaded into the gate. They may have a pointer threaded onto the stem to indicate valve position since the gate’s motion is concealed inside the valve. Non rising stems are used where vertical space is limited. Gate valves can be actuated manually (handwheel) or electrically using a high torque motor. The sliding gate (disc) can be wedge-shaped (tapered) or parallel-shaped. Wedge shape designs include solid, flexible, and split wedge designs. Seat rings are used to make the replacement of a worn\/leaking seat easier. Seat rings have a screw thread on the reverse side which can be screwed into the main valve body, the flat surface on the opposite side is the seating surface area that presses against the disc. If seat rings are not used, it is possible to machine a flat seat on the main valve body itself, unfortunately, this makes replacing the seat impossible and the seat can only be machined a few times before the entire valve must be replaced. Gate valve bonnets are often constructed of cast iron. Cast iron is brittle and this makes the bonnet prone to cracking. Special care should be taken when handling and maintaining valves with cast iron bonnets. As the stem penetrates through the valve bonnet, it is necessary to install a sealing gland to prevent leakage from occurring through the gap between the stem and bonnet; sealing is usually achieved using the fibrous packing material. Flanges are installed on the suction and discharge side of the valve so that piping can be easily connected. Gate Valve Types The gate comes in various designs and technologies to produce effective sealing for differing applications. Knife gate valve A knife gate valve is used for thick fluids and dry bulk solids. The gate is only one piece of metal, which is typically pointed like a knife. These valves are self-cleaning as they pass the seat rings every time they open and close. Wedge Gate Valve A wedge gate valve has a gate in the shape of a wedge that sits on two inclined seats. In addition to the primary force created by fluid pressure, a high wedging force on the seats created by the stem tightening assists with the sealing. The wedge-shaped gate does not stick to the seat in case of high fluid differential pressure and has an increased service life due to less “rubbing” on the seats. However, wedge-shaped gate valves have an additional compression load on the seats that may result in thermal binding and restricted valve opening due to expansion. Parallel Slide Gate Valve A parallel slide gate valve has a flat gate and seats parallel to it. Parallel slide gate valves use line pressure and positioning to make a tight seal. Flat gates consist of two pieces and have a spring in the middle. The spring pushes the pieces towards the seats for enhanced sealing. Due to their inherent design, parallel gate valves have a safety advantage in higher-temperature applications. Furthermore, since there is no wedging action in parallel gates, closing torques are comparatively smaller, resulting in smaller, less expensive actuators or less manual effort. Due to their sliding into position, parallel gates keep dirt away from the seating surfaces. Slab Gate Valve Slab gates, also called through-conduit gate valves, are one-unit gates that include a bore-size hole. The bore is in line with the two-seat rings in the open state. This alignment creates a smooth flow with minimal turbulence. This unique design allows for minimal pressure loss in the system and is perfect for the transportation of crude oil and natural gas liquids (NGLs). The valve seats remain clean. However, the disc cavity can capture foreign material. Therefore, the cavity typically has a built-in plug for maintenance purposes of draining the accumulated foreign material. Parallel Expanding Gate Valve Expanding gate valves have two slab gates matched together that provide sealing through the mechanical expansion of the gate, as seen in Figure 5. When lifted, both of the slab gate’s cavities allow the media to flow. The upward force on one slab and the stoppage of the second slab, by a step in the valve body, allows for outward mechanical expansion for a proper seal. When closed, the slab gates block the media flow, and the downward force (stem) on one slab and upward force (step in valve body) allows for outward mechanical expansion for a proper seal. These valves provide an effective seal simultaneously for both upstream and downstream seats. This seal makes them ideal for applications like isolation valves in power plants, block valves in process systems, and high-temperature valves in refineries. Metal seated vs Resilient Seated Gate Valves Before the resilient seated gate valve was introduced to the market, gate valves with a metal seated wedge were widely used. The conical wedge design and angular sealing devices of a metal seated wedge require a depression in the valve bottom to ensure a tight closure. Herewith, sand and pebbles are embedded in the bore. The pipe system will never be completely free from impurities regardless of how thoroughly the pipe is flushed upon installation or repair. Thus, any metal wedge will eventually lose its ability to be drop-tight. A resilient seated gate valve has a plain valve bottom allowing free passage for sand and pebbles in the valve. If impurities pass as the valve closes, the rubber surface will close around the impurities while the valve is closed. A high-quality rubber compound absorbs the impurities as the valve closes, and the impurities will be flushed away when the valve is opened again. The rubber surface will regain its original shape by securing a drop-tight sealing. The vast majority of gate valves are resilient seated, however, metal seated gate valves are still requested in some markets, so they are still part of our range for water supply and wastewater treatment.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/zecovalve.com\/tr\/tag\/gate-valve-wikipedia\" \/>\n<meta property=\"og:site_name\" content=\"ZECO Valve\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebSite\",\"@id\":\"https:\/\/zecovalve.com\/#website\",\"url\":\"https:\/\/zecovalve.com\/\",\"name\":\"ZECO Valve\",\"description\":\"Industrial Ball Valve, Gate Valve and Globe Valve Manufacturer\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":\"https:\/\/zecovalve.com\/?s={search_term_string}\",\"query-input\":\"required name=search_term_string\"}],\"inLanguage\":\"tr\"},{\"@type\":\"CollectionPage\",\"@id\":\"https:\/\/zecovalve.com\/tag\/gate-valve-wikipedia#webpage\",\"url\":\"https:\/\/zecovalve.com\/tag\/gate-valve-wikipedia\",\"name\":\"Gate Valve Wikipedia - Gate Valve Suppliers | ZECO Valve\",\"isPartOf\":{\"@id\":\"https:\/\/zecovalve.com\/#website\"},\"breadcrumb\":{\"@id\":\"https:\/\/zecovalve.com\/tag\/gate-valve-wikipedia#breadcrumb\"},\"inLanguage\":\"tr\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/zecovalve.com\/tag\/gate-valve-wikipedia\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/zecovalve.com\/tag\/gate-valve-wikipedia#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"item\":{\"@type\":\"WebPage\",\"@id\":\"https:\/\/zecovalve.com\/\",\"url\":\"https:\/\/zecovalve.com\/\",\"name\":\"Home\"}},{\"@type\":\"ListItem\",\"position\":2,\"item\":{\"@type\":\"WebPage\",\"@id\":\"https:\/\/zecovalve.com\/tag\/gate-valve-wikipedia\",\"url\":\"https:\/\/zecovalve.com\/tag\/gate-valve-wikipedia\",\"name\":\"Gate Valve Wikipedia\"}}]}]}<\/script>\n<!-- \/ Yoast SEO Premium plugin. -->","_links":{"self":[{"href":"https:\/\/zecovalve.com\/tr\/wp-json\/wp\/v2\/tags\/1884","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/zecovalve.com\/tr\/wp-json\/wp\/v2\/tags"}],"about":[{"href":"https:\/\/zecovalve.com\/tr\/wp-json\/wp\/v2\/taxonomies\/post_tag"}],"wp:post_type":[{"href":"https:\/\/zecovalve.com\/tr\/wp-json\/wp\/v2\/posts?tags=1884"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}