{"id":16576,"date":"2022-06-22T05:29:17","date_gmt":"2022-06-22T05:29:17","guid":{"rendered":"https:\/\/zecovalve.com\/?p=16576"},"modified":"2022-08-22T08:45:15","modified_gmt":"2022-08-22T08:45:15","slug":"difference-between-globe-valve-and-gate-valve","status":"publish","type":"post","link":"https:\/\/zecovalve.com\/tr\/difference-between-globe-valve-and-gate-valve.html","title":{"rendered":"K\u00fcresel Vana ve S\u00fcrg\u00fcl\u00fc Vana Aras\u0131ndaki Fark"},"content":{"rendered":"

K\u00fcresel vana, s\u00fcrg\u00fcl\u00fc vana, kelebek vana, \u00e7ek vana ve k\u00fcresel vana, \u00e7e\u015fitli boru hatt\u0131 sistemlerinde vazge\u00e7ilmez kontrol par\u00e7alar\u0131d\u0131r. Her valf t\u00fcr\u00fc g\u00f6r\u00fcn\u00fcm, yap\u0131 ve hatta i\u015flev bak\u0131m\u0131ndan farkl\u0131d\u0131r. Ancak k\u00fcresel vana ve s\u00fcrg\u00fcl\u00fc vana g\u00f6r\u00fcn\u00fc\u015f olarak benzerdir ve her ikisinin de boru hatt\u0131n\u0131 kesme i\u015flevi vard\u0131r. Dolay\u0131s\u0131yla vana ile temas\u0131 az olan bir\u00e7ok arkada\u015f glob vana ile s\u00fcrg\u00fcl\u00fc vanay\u0131 kar\u0131\u015ft\u0131rabilir. Asl\u0131nda dikkatli incelerseniz glob vana ile s\u00fcrg\u00fcl\u00fc vana aras\u0131nda b\u00fcy\u00fck bir bo\u015fluk var. Bu makale, K\u00fcresel vana ve s\u00fcrg\u00fcl\u00fc vana aras\u0131ndaki fark<\/a>.<\/p>\n\n\n\n\n\n

S\u00fcrg\u00fcl\u00fc vana ile k\u00fcresel vana aras\u0131ndaki yap\u0131sal fark<\/h2>\n\n\n\n

Montaj alan\u0131n\u0131n s\u0131n\u0131rl\u0131 olmas\u0131 durumunda se\u00e7ime dikkat edilmelidir.\u00a0s\u00fcrg\u00fcl\u00fc vana<\/a>\u00a0S\u0131z\u0131nt\u0131 olmamas\u0131n\u0131 sa\u011flamak i\u00e7in orta bas\u0131nca ba\u011fl\u0131 olarak s\u0131zd\u0131rmazl\u0131k y\u00fczeyi ile s\u0131k\u0131ca kapat\u0131labilir. Valf g\u00f6be\u011fi, valf yuvas\u0131n\u0131n s\u0131zd\u0131rmazl\u0131k y\u00fczeyi ile temas halindeyse ve a\u00e7ma ve kapama s\u0131ras\u0131nda s\u00fcrt\u00fcnme varsa, s\u0131zd\u0131rmazl\u0131k y\u00fczeyinin a\u015f\u0131nmas\u0131 kolayd\u0131r. S\u00fcrg\u00fcl\u00fc vana kapat\u0131ld\u0131\u011f\u0131nda boru hatt\u0131n\u0131n \u00f6n\u00fc ve arkas\u0131 aras\u0131ndaki bas\u0131n\u00e7 fark\u0131 b\u00fcy\u00fckt\u00fcr, bu da s\u0131zd\u0131rmazl\u0131k y\u00fczeyinin daha ciddi \u015fekilde a\u015f\u0131nmas\u0131na neden olur. S\u00fcrg\u00fcl\u00fc vanan\u0131n yap\u0131s\u0131 k\u00fcresel vanadan daha karma\u015f\u0131k olacakt\u0131r. G\u00f6r\u00fcn\u00fc\u015fe g\u00f6re, ayn\u0131 kalibrede, s\u00fcrg\u00fcl\u00fc vana k\u00fcresel vanadan daha y\u00fcksektir ve k\u00fcresel vana, s\u00fcrg\u00fcl\u00fc vanadan daha uzundur. Ayr\u0131ca s\u00fcrg\u00fcl\u00fc vanalar a\u00e7\u0131k milli ve gizli milli olmak \u00fczere ikiye ayr\u0131l\u0131r. K\u00fcresel vana b\u00f6l\u00fcnemez.<\/p>\n\n\n\n

K\u00fcresel vana ve s\u00fcrg\u00fcl\u00fc vanan\u0131n \u00e7al\u0131\u015fma prensibi<\/h2>\n\n\n\n

Ne zaman\u00a0glob vana<\/a>\u00a0a\u00e7\u0131l\u0131r ve kapan\u0131r, y\u00fckselen milli tiptir, yani el \u00e7ark\u0131 d\u00f6nd\u00fcr\u00fcld\u00fc\u011f\u00fcnde mil ile birlikte d\u00f6necek ve kalkacakt\u0131r. S\u00fcrg\u00fcl\u00fc valf, el \u00e7ark\u0131n\u0131 d\u00f6nd\u00fcrerek g\u00f6vdenin yukar\u0131 ve a\u015fa\u011f\u0131 hareket etmesini sa\u011flar ve el \u00e7ark\u0131n\u0131n konumu de\u011fi\u015fmeden kal\u0131r. Ak\u0131\u015f h\u0131z\u0131 farkl\u0131d\u0131r. S\u00fcrg\u00fcl\u00fc vanan\u0131n tamamen a\u00e7\u0131k veya tamamen kapal\u0131 olmas\u0131 gerekirken k\u00fcresel vana gerekli de\u011fildir. K\u00fcresel vanan\u0131n giri\u015f ve \u00e7\u0131k\u0131\u015f y\u00f6nleri belirlenmi\u015ftir; S\u00fcrg\u00fcl\u00fc vanan\u0131n giri\u015f ve \u00e7\u0131k\u0131\u015f y\u00f6nlerine ili\u015fkin herhangi bir gereksinimi yoktur. Ek olarak s\u00fcrg\u00fcl\u00fc vanan\u0131n yaln\u0131zca iki durumu vard\u0131r: tam a\u00e7\u0131k veya tam kapal\u0131. Kap\u0131n\u0131n a\u00e7\u0131lma ve kapanma stroku \u00e7ok b\u00fcy\u00fck ve a\u00e7\u0131lma ve kapanma s\u00fcresi uzun. K\u00fcresel vanan\u0131n valf plakas\u0131n\u0131n hareket stroku \u00e7ok daha k\u00fc\u00e7\u00fckt\u00fcr ve ak\u0131\u015f\u0131n d\u00fczenlenmesi i\u00e7in k\u00fcresel vanan\u0131n valf plakas\u0131 hareket s\u0131ras\u0131nda belirli bir yerde durdurulabilir. S\u00fcrg\u00fcl\u00fc vana, ba\u015fka i\u015flevler olmadan yaln\u0131zca kesme i\u00e7in kullan\u0131labilir.<\/p>\n\n\n\n

S\u00fcrg\u00fcl\u00fc vana ile k\u00fcresel vana aras\u0131ndaki performans fark\u0131<\/h2>\n\n\n\n

K\u00fcresel vana kesme ve ak\u0131\u015f d\u00fczenlemesi i\u00e7in kullan\u0131labilir. K\u00fcresel vanan\u0131n ak\u0131\u015f direnci nispeten b\u00fcy\u00fckt\u00fcr ve a\u00e7\u0131lmas\u0131 ve kapanmas\u0131 zaman al\u0131r. Ancak valf plakas\u0131 ile s\u0131zd\u0131rmazl\u0131k y\u00fczeyi aras\u0131ndaki mesafe k\u0131sa oldu\u011fundan a\u00e7\u0131lma ve kapanma stroku k\u0131sad\u0131r.<\/p>\n\n\n\n

S\u00fcrg\u00fcl\u00fc vana ile k\u00fcresel vana aras\u0131ndaki montaj ve ak\u0131\u015f y\u00f6n\u00fc fark\u0131<\/h2>\n\n\n\n

S\u00fcrg\u00fcl\u00fc vanan\u0131n ak\u0131\u015f y\u00f6n\u00fc a\u00e7\u0131s\u0131ndan etkisi her iki y\u00f6nde de ayn\u0131d\u0131r. Kurulum i\u00e7in giri\u015f ve \u00e7\u0131k\u0131\u015f y\u00f6n\u00fcne gerek yoktur ve ortam iki y\u00f6nde akabilir. K\u00fcresel vana, vana g\u00f6vdesinin okuyla g\u00f6sterilen y\u00f6ne tam olarak uygun \u015fekilde monte edilmelidir. Glob vanan\u0131n giri\u015f ve \u00e7\u0131k\u0131\u015f y\u00f6n\u00fcne ili\u015fkin net bir d\u00fczenleme bulunmaktad\u0131r. \u00c7in vanalar\u0131n\u0131n "serile\u015ftirilmesi, evrenselle\u015ftirilmesi ve standardizasyonuna" g\u00f6re k\u00fcresel vanan\u0131n ak\u0131\u015f y\u00f6n\u00fc yukar\u0131dan a\u015fa\u011f\u0131ya do\u011fru olmal\u0131d\u0131r.<\/p>\n\n\n\n

Ak\u0131\u015f direnci a\u00e7\u0131s\u0131ndan bak\u0131ld\u0131\u011f\u0131nda, tamamen a\u00e7\u0131ld\u0131\u011f\u0131nda s\u00fcrg\u00fcl\u00fc vanan\u0131n ak\u0131\u015f direnci k\u00fc\u00e7\u00fck, y\u00fck \u00e7ek valfininki ise b\u00fcy\u00fckt\u00fcr. S\u0131radan s\u00fcrg\u00fcl\u00fc vanan\u0131n ak\u0131\u015f direnci katsay\u0131s\u0131 yakla\u015f\u0131k 0,08 ~ 0,12'dir, a\u00e7ma ve kapama kuvveti k\u00fc\u00e7\u00fckt\u00fcr ve ortam iki y\u00f6nde akabilir.<\/p>\n\n\n\n

Kesme vanas\u0131 d\u00fc\u015f\u00fck giri\u015f ve y\u00fcksek \u00e7\u0131k\u0131\u015ft\u0131r. G\u00f6r\u00fcn\u00fc\u015fe g\u00f6re boru hatt\u0131n\u0131n ayn\u0131 fazdaki yatay \u00e7izgi \u00fczerinde olmad\u0131\u011f\u0131 a\u00e7\u0131kt\u0131r. S\u00fcrg\u00fcl\u00fc vana ak\u0131\u015f yolu yatay bir \u00e7izgi \u00fczerindedir. S\u00fcrg\u00fcl\u00fc vanan\u0131n stroku k\u00fcresel vanan\u0131nkinden daha b\u00fcy\u00fckt\u00fcr. Ortak k\u00fcresel vanan\u0131n ak\u0131\u015f direnci, s\u00fcrg\u00fcl\u00fc vanan\u0131n 3-5 kat\u0131d\u0131r. K\u00fcresel vanan\u0131n valf eleman\u0131 s\u0131zd\u0131rmazl\u0131k y\u00fczeyine yaln\u0131zca tamamen kapal\u0131 oldu\u011funda temas eder, bu nedenle s\u0131zd\u0131rmazl\u0131k y\u00fczeyinin a\u015f\u0131nmas\u0131 \u00e7ok azd\u0131r. Ana ak\u0131\u015f kuvveti b\u00fcy\u00fckt\u00fcr, akt\u00fcat\u00f6r\u00fcn k\u00fcresel vanas\u0131na ihtiya\u00e7 vard\u0131r, bu nedenle tork kontrol mekanizmas\u0131n\u0131n ayarlanmas\u0131na dikkat edilmelidir.<\/p>\n\n\n\n

K\u00fcresel vanay\u0131 takman\u0131n iki y\u00f6ntemi vard\u0131r: Y\u00f6ntemlerden biri, ortam\u0131n vana \u00e7ekirde\u011finin alt\u0131ndan girebilmesidir. Faydal\u0131 model, vana kapat\u0131ld\u0131\u011f\u0131nda salmastran\u0131n bas\u0131n\u00e7 alt\u0131nda olmamas\u0131, salmastran\u0131n servis \u00f6mr\u00fcn\u00fcn uzat\u0131labilmesi ve vanan\u0131n \u00f6n\u00fcndeki boru hatt\u0131 bas\u0131n\u00e7 alt\u0131ndayken salmastran\u0131n de\u011fi\u015ftirilebilmesi gibi avantajlara sahiptir. Dezavantaj\u0131 ise valfin tahrik torkunun \u00fcst ak\u0131\u015f\u0131n yakla\u015f\u0131k 1 kat\u0131 kadar b\u00fcy\u00fck olmas\u0131d\u0131r. Valf \u00e7ubu\u011fu \u00fczerindeki eksenel kuvvet b\u00fcy\u00fckt\u00fcr ve valf \u00e7ubu\u011funun b\u00fck\u00fclmesi kolayd\u0131r.<\/p>\n\n\n\n

Bu nedenle, bu y\u00f6ntem genellikle yaln\u0131zca k\u00fc\u00e7\u00fck kalibreli k\u00fcresel vanalara (DN50'nin alt\u0131nda) uygulanabilir ve DN200'\u00fcn \u00fczerindeki k\u00fcresel vanalar, ortam\u0131n yukar\u0131dan akmas\u0131 y\u00f6ntemini benimser. (elektrikli k\u00fcresel vana genellikle ortam\u0131n yukar\u0131dan girme \u015feklini benimser.) Ortam\u0131n \u00fcstten giri\u015finin dezavantaj\u0131 alttan giri\u015fin tersidir.<\/p>\n\n\n\n

S\u00fcrg\u00fcl\u00fc vana ile k\u00fcresel vana aras\u0131ndaki s\u0131zd\u0131rmazl\u0131k fark\u0131<\/h2>\n\n\n\n

K\u00fcresel vanan\u0131n s\u0131zd\u0131rmazl\u0131k y\u00fczeyi, vana \u00e7ekirde\u011finin k\u00fc\u00e7\u00fck bir yamuk taraf\u0131d\u0131r (\u00f6zellikle vana \u00e7ekirde\u011finin \u015fekline ba\u011fl\u0131d\u0131r). Valf \u00e7ekirde\u011finin d\u00fc\u015fmesi, valfin kapanmas\u0131na e\u015fde\u011ferdir (bas\u0131n\u00e7 fark\u0131 b\u00fcy\u00fckse s\u0131k\u0131 kapanmayacakt\u0131r, ancak kontrol etkisi iyidir). S\u00fcrg\u00fcl\u00fc valf, valf g\u00f6be\u011fi ko\u00e7unun yan\u0131ndan kapat\u0131lm\u0131\u015ft\u0131r. S\u0131zd\u0131rmazl\u0131k etkisi glob vana kadar iyi de\u011filse, vana g\u00f6be\u011finin d\u00fc\u015fmesi vanan\u0131n glob vana gibi kapanmas\u0131na e\u015fde\u011fer olmayacakt\u0131r.<\/p>\n\n\n\n\n