{"id":1690,"date":"2025-12-13T08:00:00","date_gmt":"2025-12-13T08:00:00","guid":{"rendered":"https:\/\/www.tgvalve.com\/?p=1690"},"modified":"2025-12-15T07:30:25","modified_gmt":"2025-12-15T07:30:25","slug":"centerline-butterfly-valves-eccentricity-design-difference","status":"publish","type":"post","link":"https:\/\/www.tgvalve.com\/tr\/blog\/butterfly-valve\/comparison\/centerline-butterfly-valves-eccentricity-design-difference\/","title":{"rendered":"Merkez Hatt\u0131, \u00c7ift ve \u00dc\u00e7l\u00fc Eksantrik Kelebek Vanalar Aras\u0131ndaki Fark"},"content":{"rendered":"

Fark, disk konumland\u0131rmas\u0131 ve s\u0131zd\u0131rmazl\u0131k mekanizmalar\u0131nda yatmaktad\u0131r. Merkez hatl\u0131 kelebek vanalar, mili, diski ve g\u00f6vdeyi sabit oturma temas\u0131yla tek bir eksen \u00fczerinde hizalar. \u00c7ift ofsetli kelebek vanalar, s\u00fcrt\u00fcnmeyi azaltmak i\u00e7in mili diskin ve g\u00f6vde merkezlerinin arkas\u0131na kayd\u0131r\u0131r. \u00dc\u00e7 eksantrik kelebek vana tasar\u0131mlar\u0131, s\u00fcrt\u00fcnmeyi tamamen ortadan kald\u0131ran \u00fc\u00e7\u00fcnc\u00fc bir konik ofset ekler.<\/p>\n\n\n\n

\"Merkez<\/figure>\n\n\n\n

Ba\u015fl\u0131ca Farkl\u0131l\u0131klar Bir Bak\u0131\u015fta<\/strong><\/h2>\n\n\n\n
\u00d6zellik<\/strong><\/td>Merkez \u00e7izgisi<\/strong><\/td>\u00c7ift Eksantrik<\/strong><\/td>\u00dc\u00e7l\u00fc Eksantrik<\/strong><\/td><\/tr>
Ofsetler<\/td>Yok (ortalanm\u0131\u015f)<\/td>\u0130ki (g\u00f6vde kaymas\u0131)<\/td>\u00dc\u00e7 (g\u00f6vde + konik)<\/td><\/tr>
S\u0131zd\u0131rmazl\u0131k<\/td>Yumu\u015fak oturma yeri (kau\u00e7uk, PTFE)<\/td>Yumu\u015fak veya metal koltuk<\/td>Metalden metale<\/td><\/tr>
S\u00fcrt\u00fcnme<\/td>Y\u00fcksek (s\u00fcrekli temas)<\/td>Orta d\u00fczeyde (azalt\u0131lm\u0131\u015f s\u00fcrt\u00fcnme)<\/td>Hi\u00e7biri (koltuktan kalkm\u0131yor)<\/td><\/tr>
Bas\u0131n\u00e7 Derecesi<\/td>D\u00fc\u015f\u00fck bas\u0131n\u00e7<\/td>Orta bas\u0131n\u00e7<\/td>Y\u00fcksek bas\u0131n\u00e7<\/td><\/tr>
S\u0131cakl\u0131k<\/td>400\u00b0F'ye kadar<\/td>600\u00b0F'ye kadar<\/td>600\u00b0F'nin \u00fczerinde<\/td><\/tr>
Uygulamalar<\/td>Su, \u0131s\u0131tma, havaland\u0131rma ve klima sistemleri<\/td>Kimyasal boru hatlar\u0131, kanalizasyon<\/td>Buhar hatlar\u0131, rafineriler<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

S\u0131zd\u0131rmazl\u0131k ve S\u00fcrt\u00fcnme<\/strong><\/h3>\n\n\n\n

Merkez hatl\u0131 kelebek vanalar, s\u00fcrekli disk-yuva temas\u0131yla pozisyonel s\u0131zd\u0131rmazl\u0131k kullan\u0131r. Disk, \u00e7al\u0131\u015fma boyunca yumu\u015fak yuvaya s\u00fcrt\u00fcnerek y\u00fcksek s\u00fcrt\u00fcnme ve h\u0131zl\u0131 a\u015f\u0131nmaya neden olur. Bu da daha fazla \u00e7al\u0131\u015fma torkuna ihtiya\u00e7 duyaca\u011f\u0131n\u0131z anlam\u0131na gelir.<\/p>\n\n\n\n

\u00c7ift ofset kelebek vanalar<\/a> Kam mekanizmas\u0131 sayesinde s\u00fcrt\u00fcnme azalt\u0131l\u0131r. Milin ofseti, a\u00e7\u0131lma ba\u015flad\u0131ktan hemen sonra diskin yuvadan kalkmas\u0131n\u0131 sa\u011flar. Metal yuva se\u00e7enekleri de mevcuttur, ancak s\u0131zd\u0131rmazl\u0131k yine de hat temas\u0131na ve elastik deformasyona ba\u011fl\u0131d\u0131r.<\/p>\n\n\n\n

\u00dc\u00e7l\u00fc eksantrik tasar\u0131mlar, s\u0131f\u0131r s\u00fcrt\u00fcnmeyle burulma s\u0131zd\u0131rmazl\u0131\u011f\u0131na d\u00f6n\u00fc\u015f\u00fcr. Konik geometri, temas\u0131n yaln\u0131zca tam kapanmada ger\u00e7ekle\u015fti\u011fi anlam\u0131na gelir. Deformasyondan ziyade temas y\u00fczeyi bas\u0131nc\u0131na dayan\u0131r. Dahas\u0131, s\u0131zd\u0131rmazl\u0131k bas\u0131nc\u0131 sistem bas\u0131nc\u0131yla orant\u0131l\u0131 olarak artar.<\/p>\n\n\n\n

Bas\u0131n\u00e7 ve S\u0131cakl\u0131k<\/strong><\/h3>\n\n\n\n

Centerline tasar\u0131mlar\u0131, 200 PSI'ye kadar d\u00fc\u015f\u00fck bas\u0131n\u00e7l\u0131 uygulamalar ve yakla\u015f\u0131k 400\u00b0F s\u0131cakl\u0131klar i\u00e7in uygundur. Yumu\u015fak oturma y\u00fczeyi malzemeleri, a\u015f\u0131r\u0131 ko\u015fullarda kullan\u0131m\u0131n\u0131 s\u0131n\u0131rland\u0131r\u0131r. Bu da uygulamalar\u0131 genel hizmetle k\u0131s\u0131tlayabilir.<\/p>\n\n\n\n

\u00c7ift ofset kelebek vanalar, ANSI S\u0131n\u0131f 600'e kadar orta bas\u0131n\u00e7lar\u0131 ve 600\u00b0F'ye kadar s\u0131cakl\u0131klar\u0131 kald\u0131rabilir. Metal contalar, yumu\u015fak contalar\u0131n izin verdi\u011finden daha y\u00fcksek s\u0131cakl\u0131k dayan\u0131m\u0131 sa\u011flar. Bununla birlikte, pozisyonel s\u0131zd\u0131rmazl\u0131k, maksimum bas\u0131n\u00e7 dayan\u0131m\u0131n\u0131 yine de s\u0131n\u0131rlar.<\/p>\n\n\n\n

\u00dc\u00e7 eksantrik kelebek vana tasar\u0131mlar\u0131, 600 s\u0131n\u0131f\u0131n\u0131n \u00fczerindeki a\u015f\u0131r\u0131 ko\u015fullarda ve 600\u00b0F'nin \u00fczerindeki s\u0131cakl\u0131klarda \u00fcst\u00fcn performans g\u00f6sterir. Metalden metale s\u0131zd\u0131rmazl\u0131k, yang\u0131na kar\u015f\u0131 g\u00fcvenli bir \u00f6zellik sa\u011flar. Bu da onlar\u0131 buhar hatlar\u0131nda ve y\u00fcksek bas\u0131n\u00e7l\u0131 sistemlerde kullanabilece\u011finiz anlam\u0131na gelir.<\/p>\n\n\n\n

Maliyet ve S\u0131z\u0131nt\u0131<\/strong><\/h3>\n\n\n\n

Merkez hatl\u0131 kelebek vanalar en d\u00fc\u015f\u00fck ilk maliyeti sunar. Basit tasar\u0131m\u0131, \u00fcretimini kolayla\u015ft\u0131r\u0131r. Oturma y\u00fczeyinin s\u0131k\u0131\u015ft\u0131r\u0131lmas\u0131yla s\u0131zd\u0131rmaz bir kapanma sa\u011flanabilir, ancak oturma y\u00fczeyi a\u015f\u0131nd\u0131k\u00e7a s\u0131z\u0131nt\u0131 artabilir.<\/p>\n\n\n\n

\u00c7ift ofset tasar\u0131mlar, merkez hatl\u0131 vanalardan daha pahal\u0131, ancak \u00fc\u00e7l\u00fc ofset vanalardan daha ucuzdur. A\u015f\u0131nman\u0131n azalmas\u0131 nedeniyle s\u0131z\u0131nt\u0131 oranlar\u0131 d\u00fc\u015fer. Bu da servis aral\u0131klar\u0131n\u0131 uzatabilir ve zaman i\u00e7inde bak\u0131m maliyetlerini azaltabilir.<\/p>\n\n\n\n

CTGV gibi \u00fc\u00e7l\u00fc eksantrik kelebek vana \u00fcreticileri, s\u0131f\u0131r s\u0131z\u0131nt\u0131 \u00f6zelli\u011fine sahip vanalar \u00fcretmektedir. Daha y\u00fcksek ba\u015flang\u0131\u00e7 maliyeti, karma\u015f\u0131k i\u015fleme ve s\u0131k\u0131 toleranslardan kaynaklanmaktad\u0131r. Bununla birlikte, uzun hizmet \u00f6mr\u00fc ve minimum bak\u0131m, ba\u015flang\u0131\u00e7 yat\u0131r\u0131m\u0131n\u0131 telafi etmektedir.<\/p>\n\n\n\n

Uygulamalar<\/strong><\/h3>\n\n\n\n

Merkez hatl\u0131 kelebek vanalar i\u00e7me suyu, havaland\u0131rma ve HVAC sistemlerinde kullan\u0131l\u0131r. Uygun maliyetli tasar\u0131m\u0131 genel kullan\u0131ma uygundur. Bunlar\u0131 g\u0131da i\u015fleme ve temiz su ar\u0131tma tesislerinde bulabilirsiniz.<\/p>\n\n\n\n

\u00c7ift a\u00e7\u0131l\u0131 kelebek vanalar kimyasal boru hatlar\u0131na, so\u011futma sistemlerine ve at\u0131ksu ar\u0131tma tesislerine uygundur. Geli\u015ftirilmi\u015f a\u015f\u0131nma \u00f6zellikleri, end\u00fcstriyel ortamlarda daha uzun hizmet \u00f6mr\u00fc anlam\u0131na gelir.<\/p>\n\n\n\n

\u00dc\u00e7l\u00fc eksantrik tasar\u0131mlar, petrol ve gaz, enerji \u00fcretimi ve a\u00e7\u0131k deniz platformlar\u0131nda kritik izolasyon sa\u011flar. S\u0131f\u0131r s\u0131z\u0131nt\u0131 \u00f6zelli\u011fi, yang\u0131n senaryolar\u0131nda b\u00fcy\u00fck \u00f6nem ta\u015f\u0131r. CTGV, bu \u00f6zelli\u011fi sunar. kelebek vana \u00fcretimi<\/a> Bu zorlu uygulamalar i\u00e7in.<\/p>\n\n\n

\n
\"Uzman<\/figure>\n<\/div>\n\n\n

Do\u011fru Tasar\u0131m\u0131 Se\u00e7mek<\/strong><\/h2>\n\n\n\n

Vana tipleri aras\u0131nda se\u00e7im yaparken \u015fu fakt\u00f6rleri g\u00f6z \u00f6n\u00fcnde bulundurun:<\/p>\n\n\n\n