{"id":3671,"count":8,"description":"\r\n\r\nGLOB VANA AKI\u015e Y\u00d6N\u00dc BILGISI ALIN<\/strong><\/a>\r\n\r\n\r\n\r\n\r\n\r\n\r\n

Glob Vana Ak\u0131\u015f Y\u00f6n\u00fc<\/h2>\r\n\r\n\r\n\r\n\r\nGlob vanalar<\/a> neredeyse her sekt\u00f6rdeki \u015firketlerde en \u00e7ok kullan\u0131lan vanalardan biri haline gelmi\u015ftir. Bir boru hatt\u0131 i\u00e7indeki ak\u0131\u015fkan ak\u0131\u015f\u0131n\u0131 ba\u015flatma, durdurma ve k\u0131sma yetenekleriyle bunun nedenini anlamak kolayd\u0131r.\r\n\r\n\r\n\r\n\r\n\r\nGenerally speaking, the flow of globe vales is from down to up. It means the medium will go through from the disc downside and then out by the upside. Globe valves usually adopt a compulsory sealed design, so closing the valve offer pressure to the disc against the seat. So if you want to open the valve, the globe valve disc must overcome resistance made by stem and packing friction, medium pressure will offer adverse pressure which helps open the valve. It means you can use less force than the closing valve. So the stem diameter should be larger, to avoid stem bending fault. (depending on the metal material's physical performance of the stem ). In recent years, there are more and more valve pressure seals, the medium through the upper disc to the down disc, so the close valve force is smaller than the open valve force, valve shaft diameter is allowed to be smaller.\r\n\r\n\r\n\r\n\r\n\r\nAncak baz\u0131 g\u00f6r\u00fc\u015fler buna kat\u0131lmamaktad\u0131r, \u00f6zellikle daha b\u00fcy\u00fck boyutlu bir glob vana i\u00e7in (\u00f6rne\u011fin, DN250'den daha b\u00fcy\u00fck bir boyut), glob vana genellikle bir vana bas\u0131n\u00e7 contas\u0131 kullan\u0131r ve kapatma vanas\u0131 kuvveti g\u00f6z \u00f6n\u00fcne al\u0131nd\u0131\u011f\u0131nda, conta performans\u0131na ula\u015fmak kolayd\u0131r. Ancak, vana sap\u0131 \u00e7ap\u0131 yatak \u00e7ap\u0131ndan daha k\u00fc\u00e7\u00fck oldu\u011funda vanan\u0131n stabilizasyonu dikkate al\u0131nmal\u0131d\u0131r.\r\n\r\n\r\n\r\n\r\n\r\nPeki bu vanalar tam olarak nas\u0131l \u00e7al\u0131\u015f\u0131r ve glob vana y\u00f6n ak\u0131\u015f\u0131 nedir?\r\n\r\n\r\n\r\n\r\n

Glob Vanalar Nas\u0131l \u00c7al\u0131\u015f\u0131r?<\/h2>\r\n\r\n\r\n\r\n\r\nBir glob vana \u00f6ncelikle ak\u0131\u015f\u0131 durdurmak, ba\u015flatmak ve d\u00fczenlemek i\u00e7in tasarlanm\u0131\u015ft\u0131r. Genel olarak k\u00fcresel bir g\u00f6vde i\u00e7inde hareketli bir disk ve sabit bir halka yataktan olu\u015fur. Bir glob vanan\u0131n yuvas\u0131 borunun ortas\u0131nda ve boruya paraleldir ve yuvadaki a\u00e7\u0131kl\u0131k disk ile kapat\u0131l\u0131r. Kol elle veya bir akt\u00fcat\u00f6r arac\u0131l\u0131\u011f\u0131yla d\u00f6nd\u00fcr\u00fcld\u00fc\u011f\u00fcnde, vana g\u00f6vdesi vas\u0131tas\u0131yla bir disk al\u00e7alt\u0131l\u0131r veya y\u00fckseltilir. Disk tamamen indirildi\u011finde s\u0131v\u0131 ak\u0131\u015f\u0131 kesilir. Disk tamamen kald\u0131r\u0131ld\u0131\u011f\u0131nda, s\u0131v\u0131 ak\u0131\u015f\u0131 maksimum orandad\u0131r. Disk maksimum seviyeden daha d\u00fc\u015f\u00fck bir seviyeye y\u00fckseltildi\u011finde, ak\u0131\u015fkan ak\u0131\u015f\u0131 diskin dikey hareketiyle orant\u0131l\u0131 olarak d\u00fczenlenir.\r\n\r\n\r\n\r\n\r\n

Glob Vana Ak\u0131\u015f Y\u00f6n\u00fc<\/strong><\/h2>\r\n\r\n\r\n\r\n\r\n-D\u00fc\u015f\u00fck s\u0131cakl\u0131k uygulamalar\u0131 i\u00e7in, glob ve a\u00e7\u0131l\u0131 vanalar normalde diskin alt\u0131nda bas\u0131n\u00e7 olacak \u015fekilde monte edilir. Bu, kolay \u00e7al\u0131\u015fmay\u0131 te\u015fvik eder, salmastran\u0131n korunmas\u0131na yard\u0131mc\u0131 olur ve yatak ve disk y\u00fczeylerinde belirli bir miktar a\u015f\u0131nd\u0131r\u0131c\u0131 etkiyi ortadan kald\u0131r\u0131r.\r\n\r\n\r\n\r\n\r\n\r\n-Y\u00fcksek s\u0131cakl\u0131kta buhar servisi i\u00e7in, glob vanalar bas\u0131n\u00e7 diskin \u00fczerinde olacak \u015fekilde monte edilir. Aksi takdirde, g\u00f6vde so\u011fuduktan sonra b\u00fcz\u00fcl\u00fcr ve diski yuvas\u0131ndan kald\u0131rma e\u011filimi g\u00f6sterir (ve s\u0131z\u0131nt\u0131 yapar).\r\n\r\n\r\n\r\n\r\n

A\u00e7mak i\u00e7in Ak\u0131\u015f (FTO)<\/h3>\r\n\r\n\r\n\r\n\r\nAlso referred to as standard or forward flow, or in globe valves, flow under the seat. Think about when you've controlled the flow of water from a garden hose with your thumb. Your thumb acts like the face of the plug in a globe valve - flow is pushing against your thumb to open a flow path for the water.\r\n\r\n\r\n\r\n\r\n

Kapan\u0131\u015fa Kadar Ak\u0131\u015f (FTC)<\/h3>\r\n\r\n\r\n\r\n\r\nTers ak\u0131\u015f veya glob vanalarda yatak \u00fczerinden ak\u0131\u015f olarak da adland\u0131r\u0131l\u0131r. Bir k\u00fcvetteki tahliye tapas\u0131n\u0131 d\u00fc\u015f\u00fcn\u00fcn. Ak\u0131\u015f y\u00f6n\u00fc tapan\u0131n arkas\u0131na veya \u00fcst\u00fcne do\u011frudur (\u00f6n y\u00fcz\u00fcnden ziyade) ve bu da tapan\u0131n gidere do\u011fru kapanma e\u011filimi yarat\u0131r.\r\n\r\n\r\n\r\n\r\n
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