{"id":2484,"date":"2026-06-18T10:20:00","date_gmt":"2026-06-18T10:20:00","guid":{"rendered":"https:\/\/www.tgvalve.com\/?p=2484"},"modified":"2026-07-07T07:26:57","modified_gmt":"2026-07-07T07:26:57","slug":"butterfly-valve-leakage-class-explained","status":"publish","type":"post","link":"https:\/\/www.tgvalve.com\/tr\/blog\/butterfly-valve\/butterfly-valve-leakage-class-explained\/","title":{"rendered":"Kelebek Vana S\u0131z\u0131nt\u0131 S\u0131n\u0131f\u0131 A\u00e7\u0131klamas\u0131"},"content":{"rendered":"

Kelebek vana s\u0131z\u0131nt\u0131 s\u0131n\u0131f\u0131<\/strong><\/a> Bu, vanan\u0131n tamamen kapal\u0131yken valf yuvas\u0131ndan ge\u00e7mesine izin verilen maksimum i\u00e7 s\u0131z\u0131nt\u0131y\u0131 belirleyen standartla\u015ft\u0131r\u0131lm\u0131\u015f bir derecelendirmedir. ANSI\/FCI 70-2 ve API 598, end\u00fcstriyel vana tedarikinde en yayg\u0131n olarak referans al\u0131nan iki standartt\u0131r.<\/p>\n\n\n\n

S\u0131z\u0131nt\u0131 s\u0131n\u0131f\u0131 derecelendirmesi, test ko\u015fullar\u0131 alt\u0131nda kapal\u0131 bir valf yuvas\u0131ndan ge\u00e7en s\u0131v\u0131 miktar\u0131n\u0131 \u00f6l\u00e7er. End\u00fcstriyel standartlar, kurulum \u00f6ncesinde tedarik ekiplerinin ve m\u00fchendislerin beklentilerini belirleyen bir s\u0131z\u0131nt\u0131 s\u0131n\u0131f\u0131 atar.<\/p>\n\n\n\n

Bu makale, s\u0131z\u0131nt\u0131 s\u0131n\u0131flar\u0131n\u0131n nas\u0131l \u00e7al\u0131\u015ft\u0131\u011f\u0131n\u0131 a\u00e7\u0131klamakta, yumu\u015fak contal\u0131 ve metal contal\u0131 vanalar\u0131n performans\u0131n\u0131 kar\u015f\u0131la\u015ft\u0131rmakta ve kullan\u0131m s\u0131ras\u0131nda s\u0131zd\u0131rmazl\u0131\u011f\u0131 etkileyen fakt\u00f6rleri \u00f6zetlemektedir.<\/p>\n\n\n\n

Vana Ka\u00e7ak S\u0131n\u0131f\u0131n\u0131 Tan\u0131mlayan \u0130ki Standart<\/strong><\/h2>\n\n\n\n
\"Vana<\/figure>\n\n\n\n

End\u00fcstriyel kelebek vanalar\u0131n \u00e7o\u011fu uygulamas\u0131nda ge\u00e7erli olan iki standart vard\u0131r. Bu standartlar, vana tamamen kapal\u0131yken vana yuvas\u0131ndan ge\u00e7mesine izin verilen maksimum s\u0131z\u0131nt\u0131y\u0131 tan\u0131mlar. <\/p>\n\n\n\n

    \n
  • ANSI\/FCI 70-2<\/strong>Kontrol vanalar\u0131nda yayg\u0131n olarak kullan\u0131l\u0131r. Her biri giderek daha s\u0131k\u0131 bir s\u0131z\u0131nt\u0131 limitine sahip olan I'den VI'ya kadar s\u0131n\u0131flar\u0131 tan\u0131mlar.<\/li>\n\n\n\n
  • API 598<\/strong>\u0130zolasyon vanalar\u0131na uygulan\u0131r. Farkl\u0131 test gereksinimlerine sahip metal contal\u0131 ve esnek (yumu\u015fak) contal\u0131 vanalar\u0131 birbirinden ay\u0131r\u0131r.<\/li>\n<\/ul>\n\n\n\n

    Avrupa ve uluslararas\u0131 pazarlar ayr\u0131ca, biraz farkl\u0131 test parametreleriyle benzer mant\u0131\u011f\u0131 kullanan EN 12266-1 ve ISO 5208 standartlar\u0131na da ba\u015fvurmaktad\u0131r.<\/p>\n\n\n\n

    S\u0131z\u0131nt\u0131 s\u0131n\u0131f\u0131, fabrika ortam\u0131nda yap\u0131lan bir test s\u0131ras\u0131nda belirlenir. Bu testte, valf kapal\u0131 konumdayken belirli bir bas\u0131n\u00e7ta hava, su veya nitrojen kullan\u0131l\u0131r.<\/p>\n\n\n\n

    Bu sonu\u00e7, s\u00f6z konusu vanan\u0131n kullan\u0131m \u00f6mr\u00fc boyunca s\u0131zd\u0131rmazl\u0131k performans\u0131n\u0131n \u00f6l\u00e7\u00fct\u00fcn\u00fc olu\u015fturur.<\/p>\n\n\n\n

    Her s\u0131n\u0131f i\u00e7in maksimum s\u0131z\u0131nt\u0131 oranlar\u0131 nelerdir?<\/strong><\/h2>\n\n\n\n

    maksimum s\u0131z\u0131nt\u0131 oranlar\u0131<\/strong> S\u0131n\u0131flar aras\u0131nda b\u00fcy\u00fck farkl\u0131l\u0131klar g\u00f6sterir. Yanl\u0131\u015f s\u0131n\u0131f se\u00e7imi \u00fcr\u00fcn kayb\u0131na, g\u00fcvenlik olaylar\u0131na veya mevzuata uyumsuzlu\u011fa yol a\u00e7abilir.<\/p>\n\n\n\n

    A\u015fa\u011f\u0131daki tablo, kelebek vana se\u00e7iminde en \u00f6nemli olan s\u0131n\u0131flar\u0131 kapsamaktad\u0131r:<\/p>\n\n\n\n

    S\u0131n\u0131f<\/strong><\/th>Standart<\/strong><\/th>Maksimum S\u0131z\u0131nt\u0131<\/strong><\/th>Test Ortam\u0131<\/strong><\/th>Tipik Valf Tipi<\/strong><\/th><\/tr><\/thead>
    S\u0131n\u0131f IV<\/td>ANSI\/FCI 70-2<\/td>0,01% nominal ak\u0131\u015f kapasitesi<\/td>Hava veya su<\/td>Y\u00fcksek performansl\u0131 kelebek vana (HPBV), \u00e7ift ofsetli<\/td><\/tr>
    S\u0131n\u0131f V<\/td>ANSI\/FCI 70-2<\/td>5 \u00d7 10\u207b\u2074 mL\/dakika, port \u00e7ap\u0131n\u0131n in\u00e7 ba\u015f\u0131na psi ba\u015f\u0131na<\/td>Maksimum bas\u0131n\u00e7 fark\u0131nda su<\/td>\u00dc\u00e7l\u00fc ofset kelebek vana (TOV), hassas metal yuva<\/td><\/tr>
    S\u0131n\u0131f VI<\/strong><\/td>ANSI\/FCI 70-2<\/td>S\u0131zd\u0131rmaz; valf boyutuna ba\u011fl\u0131 olarak izin verilen kabarc\u0131k say\u0131s\u0131\/dakika<\/td>45\u201350 psi bas\u0131n\u00e7ta hava veya azot<\/td>Esnek contal\u0131 (yumu\u015fak contal\u0131) kelebek vana<\/td><\/tr>
    API 598 Metal<\/td>API 598<\/td>Dakikadaki damla veya kabarc\u0131k say\u0131s\u0131 \u2014 miktar valf boyutuna ba\u011fl\u0131d\u0131r.<\/td>Hava veya su<\/td>Tamamen yeni metal contal\u0131 izolasyon vanalar\u0131<\/td><\/tr>
    API 598 Dayan\u0131kl\u0131<\/strong><\/td>API 598<\/td>Fabrika testinde s\u0131f\u0131r s\u0131z\u0131nt\u0131<\/td>Hava veya su<\/td>Yepyeni yumu\u015fak contal\u0131 izolasyon vanalar\u0131<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n

    I ila III. s\u0131n\u0131flar kelebek vanalar i\u00e7in nadiren belirtilir. IV. s\u0131n\u0131f, metal contal\u0131 tasar\u0131mlar i\u00e7in pratik minimumdur. VI. s\u0131n\u0131f ise yumu\u015fak contal\u0131 kelebek vanalar i\u00e7in standartt\u0131r.<\/p>\n\n\n\n

    S\u0131n\u0131f IV, vanan\u0131n maksimum nominal ak\u0131\u015f kapasitesinin 0,01%'sine kadar s\u0131z\u0131nt\u0131ya izin verir. S\u0131n\u0131f VI (yumu\u015fak contal\u0131), vanan\u0131n boyutuna ba\u011fl\u0131 olarak dakikada belirli say\u0131da kabarc\u0131k s\u0131z\u0131nt\u0131s\u0131n\u0131 s\u0131n\u0131rlar. 2 in\u00e7te bu, 0,15 mL\/dak'd\u0131r. 8 in\u00e7te ise 1,70 mL\/dak'ya y\u00fckselir.<\/p>\n\n\n\n

    Not<\/em><\/strong>Test bas\u0131nc\u0131n\u0131 ve ortam\u0131n\u0131 her zaman vana veri sayfas\u0131ndan do\u011frulay\u0131n. 50 psi'de test edilen bir S\u0131n\u0131f VI de\u011feri, 80 psi'de test edilen bir de\u011fere e\u015fde\u011fer de\u011fildir.<\/em><\/p>\n\n\n\n\n\n\n Kahraman \u00dcr\u00fcn \u00d6ne \u00c7\u0131kanlar\u0131<\/title>\n <style>\n \/* Added !important tags to prevent WordPress themes from injecting unwanted underlines *\/\n .hero-card, .hero-card:hover, .hero-card:focus {\n display: flex;\n flex-wrap: wrap;\n align-items: center;\n background: #f7f8fa;\n border-radius: 16px;\n box-shadow: 0 6px 20px rgba(0, 0, 0, 0.05);\n padding: 24px;\n max-width: 900px;\n margin: 40px auto;\n font-family: 'Poppins', Arial, sans-serif;\n text-decoration: none !important; \n color: inherit;\n }\n\n .hero-image {\n width: 220px;\n height: auto;\n border-radius: 12px;\n object-fit: cover;\n flex-shrink: 0;\n }\n\n .hero-content {\n padding-left: 24px;\n flex: 1;\n min-width: 260px;\n }\n\n .hero-title {\n font-size: 1.6rem;\n font-weight: bold;\n margin-bottom: 12px;\n color: #222;\n font-family: 'Poppins', sans-serif; \n }\n\n .hero-description {\n font-size: 1rem;\n color: #555;\n margin-bottom: 18px;\n line-height: 1.6;\n }\n\n .hero-link {\n display: inline-block;\n padding: 10px 20px;\n background-color: #0066cc;\n color: #fff !important;\n text-decoration: none !important;\n border-radius: 8px;\n font-weight: bold;\n transition: background 0.2s ease-in-out;\n }\n\n .hero-link:hover {\n background-color: #004c99;\n }\n\n @media (max-width: 640px) {\n .hero-card {\n flex-direction: column;\n text-align: center;\n }\n\n .hero-content {\n padding-left: 0;\n padding-top: 20px;\n }\n\n .hero-image {\n width: 100%;\n max-width: 280px;\n }\n }\n <\/style>\n<\/head>\n<body>\n\n<a class=\"hero-card\" href=\"https:\/\/www.tgvalve.com\/tr\/product\/double-offset-butterfly-valve\/\" target=\"_blank\">\n <img decoding=\"async\" class=\"hero-image\" src=\"https:\/\/tgvalve.b-cdn.net\/wp-content\/uploads\/2025\/06\/Double-Offset-Butterfly-Valve-480x480.webp\" alt=\"\u00c7ift Ofset Kelebek Vana\">\n <div class=\"hero-content\">\n <div class=\"hero-title\">\u00c7ift Ofset Kelebek Vana<\/div>\n <div class=\"hero-description\">\n <strong>Disk:<\/strong> WCB, SS, C958<br>\n <strong>K\u00f6k:<\/strong> 2Cr13, SS304, SS316, Monel\n <\/div>\n <span class=\"hero-link\">\u00dcr\u00fcn\u00fc G\u00f6r\u00fcnt\u00fcle<\/span>\n <\/div>\n<\/a>\n\n<\/body>\n<\/html>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Yumu\u015fak Contal\u0131 ve Metal Contal\u0131 Kelebek Vanalar\u0131n Kar\u015f\u0131la\u015ft\u0131r\u0131lmas\u0131<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Valfin s\u0131z\u0131nt\u0131 performans\u0131n\u0131 belirleyen en b\u00fcy\u00fck fakt\u00f6r, oturma y\u00fczeyinin malzemesidir. Her iki oturma y\u00fczeyi tipi de farkl\u0131 \u00e7al\u0131\u015fma ko\u015fullar\u0131na hizmet eder.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Yumu\u015fak Contal\u0131 Kelebek Vanalar<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.tgvalve.com\/tr\/product\/ptfe-lined-concentric-butterfly-valve\/\" target=\"_blank\" rel=\"noreferrer noopener\">Yumu\u015fak contal\u0131 vanalar<\/a> Elastomerik veya polimer koltuk malzemeleri kullan\u0131n. Yayg\u0131n kullan\u0131lan malzemeler aras\u0131nda EPDM, NBR, PTFE, Neopren ve Viton bulunur.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Disk kapand\u0131\u011f\u0131nda, yumu\u015fak conta disk kenar\u0131na kar\u015f\u0131 hafif\u00e7e deforme olur. Bu, uyumlu, hava ge\u00e7irmez bir s\u0131zd\u0131rmazl\u0131k sa\u011flar.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bu vanalar su ar\u0131tma, \u0131s\u0131tma, havaland\u0131rma ve iklimlendirme (HVAC), g\u0131da i\u015fleme ve genel hizmet alanlar\u0131nda en iyi performans\u0131 g\u00f6sterir. Tipik \u00e7al\u0131\u015fma bas\u0131nc\u0131 16 bar'a kadar olup, s\u0131cakl\u0131k 200\u00b0C'nin alt\u0131nda kal\u0131r.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Y\u00fcksek s\u0131cakl\u0131k veya a\u015f\u0131nd\u0131r\u0131c\u0131 ortamlarda, yumu\u015fak contalarla s\u0131f\u0131r s\u0131z\u0131nt\u0131 elde edilemez. Bu nedenle, IV. s\u0131n\u0131f metal conta pratik bir alternatiftir.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Ula\u015f\u0131labilir s\u0131n\u0131f<\/strong>: S\u0131n\u0131f VI (ANSI\/FCI 70-2)<strong> <\/strong>veya API 598 Dayan\u0131kl\u0131* standard\u0131na g\u00f6re s\u0131f\u0131r s\u0131z\u0131nt\u0131. Her ikisi de \u015fu niteliklere sahiptir: <strong>s\u0131f\u0131r s\u0131z\u0131nt\u0131l\u0131 kelebek vana<\/strong> Standart fabrika test ko\u015fullar\u0131 alt\u0131nda.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><em>Not<\/em><\/strong><em>API 598 Esnek, Amerikan Petrol Enstit\u00fcs\u00fc (API) taraf\u0131ndan yumu\u015fak contal\u0131 vanalar i\u00e7in belirlenen test standard\u0131n\u0131 ifade eder.<\/em><\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><strong>Metal Contal\u0131 Kelebek Vanalar<\/strong><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.tgvalve.com\/tr\/product\/metal-to-metal-triple-offset-butterfly-valve\/\" target=\"_blank\" rel=\"noreferrer noopener\">Metal contal\u0131 vanalar<\/a> Koltuk y\u00fczeyi i\u00e7in paslanmaz \u00e7elik, Stellite sert kaplama, Inconel veya benzeri ala\u015f\u0131mlar kullan\u0131n.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">S\u0131zd\u0131rmazl\u0131k mekanizmas\u0131 metalden metale temas esas\u0131na dayanmaktad\u0131r. Disk, hassas bir \u015fekilde i\u015flenmi\u015f bir oturma halkas\u0131na kar\u015f\u0131 kapan\u0131r. Y\u00fczeydeki farkl\u0131l\u0131klar nedeniyle k\u00fc\u00e7\u00fck s\u0131z\u0131nt\u0131lar normaldir.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Metal koltuklar y\u00fcksek s\u0131cakl\u0131ktaki buhara, kriyojenik uygulamalara, yang\u0131na dayan\u0131kl\u0131 uygulamalara ve a\u015f\u0131nd\u0131r\u0131c\u0131 ortamlara dayan\u0131kl\u0131d\u0131r. Ayr\u0131ca y\u00fcksek devirli \u00e7al\u0131\u015fma ko\u015fullar\u0131nda da daha iyi performans g\u00f6sterirler.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Dezavantaj\u0131, yumu\u015fak contal\u0131 tasar\u0131mlara k\u0131yasla daha y\u00fcksek s\u0131z\u0131nt\u0131 oran\u0131d\u0131r. \u00c7o\u011fu kritik izolasyon g\u00f6revi i\u00e7in S\u0131n\u0131f IV kabul edilebilir.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Ula\u015f\u0131labilir s\u0131n\u0131f<\/strong>: tipik olarak <strong>S\u0131n\u0131f IV<\/strong> ANSI\/FCI 70-2 standard\u0131na uygun olarak, hassas ta\u015flanm\u0131\u015f yuvalara sahip \u00fc\u00e7l\u00fc ofset kelebek vanalar (TOV) \u015fu de\u011ferlere ula\u015fabilir: <strong>S\u0131n\u0131f V<\/strong>.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th><strong>\u00d6zellik<\/strong><\/th><th><strong>Yumu\u015fak Oturmal\u0131<\/strong><\/th><th><strong>Metal Oturmal\u0131<\/strong><\/th><\/tr><\/thead><tbody><tr><td>S\u0131z\u0131nt\u0131 S\u0131n\u0131f\u0131<\/td><td>S\u0131n\u0131f VI \/ API 598 Esnek (s\u0131f\u0131r s\u0131z\u0131nt\u0131)<\/td><td>S\u0131n\u0131f IV (standart), S\u0131n\u0131f V (hassas TOV)<\/td><\/tr><tr><td>S\u0131cakl\u0131k Aral\u0131\u011f\u0131<\/td><td>~200\u00b0C'ye kadar<\/td><td>Ala\u015f\u0131ma ba\u011fl\u0131 olarak -196\u00b0C ile 600\u00b0C+ aras\u0131nda de\u011fi\u015fir.<\/td><\/tr><tr><td>Medya Uygunlu\u011fu<\/td><td>Su, \u0131s\u0131tma, havaland\u0131rma ve klima s\u0131v\u0131lar\u0131, g\u0131da s\u0131n\u0131f\u0131 s\u0131v\u0131lar, hafif kimyasallar<\/td><td>Buhar, kriyojenler, hidrokarbonlar, a\u015f\u0131nd\u0131r\u0131c\u0131 proses ortamlar\u0131<\/td><\/tr><tr><td>Koltuk Hayat\u0131<\/td><td>Orta d\u00fczeyde; y\u00fcksek devirli \u00e7al\u0131\u015fma s\u0131ras\u0131nda koltuk a\u015f\u0131nmas\u0131 artar.<\/td><td>Uzun \u00f6m\u00fcrl\u00fc; y\u00fcksek bas\u0131n\u00e7 ve s\u0131cakl\u0131k alt\u0131nda a\u015f\u0131nmaya dayan\u0131kl\u0131d\u0131r.<\/td><\/tr><tr><td>En \u0130yi Uygulama<\/td><td>Su ar\u0131tma, HVAC, kimyasal dozlama, genel izolasyon<\/td><td>Rafineri, enerji \u00fcretimi, LNG, yang\u0131n g\u00fcvenli\u011fi hizmetleri<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u00c7al\u0131\u015fma S\u0131ras\u0131nda Vana S\u0131z\u0131nt\u0131s\u0131n\u0131 Etkileyen Ba\u015fl\u0131ca Fakt\u00f6rler<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"656\" src=\"https:\/\/www.tgvalve.com\/wp-content\/uploads\/2026\/07\/An-infographic-that-outlines-the-5-factors-that-affect-valve-leakage-based-on-specific-conditions-1200x656.webp\" alt=\"Belirli ko\u015fullara ba\u011fl\u0131 olarak vana s\u0131z\u0131nt\u0131s\u0131n\u0131 etkileyen 5 fakt\u00f6r\u00fc \u00f6zetleyen bir infografik.\" class=\"wp-image-2513\" srcset=\"https:\/\/www.tgvalve.com\/wp-content\/uploads\/2026\/07\/An-infographic-that-outlines-the-5-factors-that-affect-valve-leakage-based-on-specific-conditions-1200x656.webp 1200w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2026\/07\/An-infographic-that-outlines-the-5-factors-that-affect-valve-leakage-based-on-specific-conditions-500x273.webp 500w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2026\/07\/An-infographic-that-outlines-the-5-factors-that-affect-valve-leakage-based-on-specific-conditions-300x164.webp 300w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2026\/07\/An-infographic-that-outlines-the-5-factors-that-affect-valve-leakage-based-on-specific-conditions-768x420.webp 768w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2026\/07\/An-infographic-that-outlines-the-5-factors-that-affect-valve-leakage-based-on-specific-conditions-1536x839.webp 1536w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2026\/07\/An-infographic-that-outlines-the-5-factors-that-affect-valve-leakage-based-on-specific-conditions-18x10.webp 18w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2026\/07\/An-infographic-that-outlines-the-5-factors-that-affect-valve-leakage-based-on-specific-conditions-137x75.webp 137w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2026\/07\/An-infographic-that-outlines-the-5-factors-that-affect-valve-leakage-based-on-specific-conditions-480x262.webp 480w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2026\/07\/An-infographic-that-outlines-the-5-factors-that-affect-valve-leakage-based-on-specific-conditions-800x437.webp 800w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2026\/07\/An-infographic-that-outlines-the-5-factors-that-affect-valve-leakage-based-on-specific-conditions.webp 1999w\" sizes=\"auto, (max-width:767px) 480px, (max-width:1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Valf yuvas\u0131 s\u0131z\u0131nt\u0131s\u0131<\/strong> Bir vanan\u0131n kullan\u0131m \u00f6mr\u00fc boyunca bu de\u011fer sabit kalmaz. Bir vanan\u0131n ger\u00e7ek \u00e7al\u0131\u015fma ko\u015fullar\u0131nda nominal s\u0131n\u0131f\u0131n\u0131 ne kadar iyi korudu\u011funu etkileyen \u00e7e\u015fitli fakt\u00f6rler vard\u0131r.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Oturma yerinin malzemesi ve sertli\u011fi.<\/strong> Daha yumu\u015fak elastomerler d\u00fc\u015f\u00fck bas\u0131n\u00e7larda daha iyi \u015fekil al\u0131r. Daha sert metaller daha uzun \u00f6m\u00fcrl\u00fcd\u00fcr ancak y\u00fczey kusurlar\u0131na daha az tolerans g\u00f6sterir.<\/li>\n\n\n\n<li><strong>Disk geometrisi.<\/strong> \u00c7ift ve<a href=\"https:\/\/www.tgvalve.com\/tr\/product-category\/butterfly-valve\/triple-offset-butterfly-valve\/\" target=\"_blank\" rel=\"noreferrer noopener\"> \u00fc\u00e7l\u00fc ofset<\/a> Disk tasar\u0131mlar\u0131, oturma y\u00fczeyiyle temas s\u00fcrt\u00fcnmesini azalt\u0131r. Bu, oturma y\u00fczeyi a\u015f\u0131nmas\u0131n\u0131 azalt\u0131r ve bir\u00e7ok \u00e7al\u0131\u015fma d\u00f6ng\u00fcs\u00fc boyunca s\u0131zd\u0131rmazl\u0131\u011f\u0131 iyile\u015ftirir.<\/li>\n\n\n\n<li><strong>Diferansiyel bas\u0131n\u00e7.<\/strong> Kapal\u0131 vanadaki bas\u0131n\u00e7 fark\u0131 artt\u0131k\u00e7a s\u0131z\u0131nt\u0131 da artar. Belirtilen s\u0131n\u0131f\u0131n, ger\u00e7ek \u00e7al\u0131\u015fma bas\u0131n\u00e7 fark\u0131n\u0131zda ge\u00e7erli olup olmad\u0131\u011f\u0131n\u0131 do\u011frulay\u0131n.<\/li>\n\n\n\n<li><strong>\u00c7al\u0131\u015fma s\u0131cakl\u0131\u011f\u0131.<\/strong> Is\u0131, elastomerlerin zamanla sertle\u015fmesine veya deformasyona u\u011framas\u0131na neden olur. Bu durum, temas geometrisini de\u011fi\u015ftirir ve s\u0131zd\u0131rmazl\u0131k b\u00fct\u00fcnl\u00fc\u011f\u00fcn\u00fc azalt\u0131r.<\/li>\n\n\n\n<li><strong>Medya uyumlulu\u011fu.<\/strong> A\u015f\u0131nd\u0131r\u0131c\u0131 veya y\u0131prat\u0131c\u0131 s\u0131v\u0131lar koltuk y\u00fczeylerine zarar verir. Y\u00fczey p\u00fcr\u00fczl\u00fcl\u00fc\u011f\u00fc artar ve s\u0131z\u0131nt\u0131 meydana gelir.<\/li>\n\n\n\n<li><strong>Akt\u00fcat\u00f6r torku.<\/strong> Yetersiz torklanm\u0131\u015f bir akt\u00fcat\u00f6r, diskin tam olarak yerine oturmas\u0131n\u0131 engeller. A\u015f\u0131r\u0131 torklanm\u0131\u015f bir akt\u00fcat\u00f6r ise yuva a\u015f\u0131nmas\u0131n\u0131 h\u0131zland\u0131r\u0131r. Her iki sonu\u00e7 da art\u0131\u015f\u0131 beraberinde getirir. <strong>kelebek vana s\u0131z\u0131nt\u0131s\u0131<\/strong> mesai.<\/li>\n\n\n\n<li><strong>Bak\u0131m ge\u00e7mi\u015fi.<\/strong> De\u011fi\u015ftirilmemi\u015f, a\u015f\u0131nm\u0131\u015f koltuklar orijinal s\u0131z\u0131nt\u0131 s\u0131n\u0131f\u0131n\u0131 koruyamaz. Y\u00fcksek devirli veya a\u015f\u0131nd\u0131r\u0131c\u0131 ortamlarda periyodik koltuk kontrolleri planlay\u0131n.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>Uygulaman\u0131z \u0130\u00e7in Do\u011fru S\u0131z\u0131nt\u0131 S\u0131n\u0131f\u0131n\u0131 Nas\u0131l Se\u00e7ersiniz?<\/strong><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Do\u011fru s\u0131z\u0131nt\u0131 s\u0131n\u0131f\u0131n\u0131 se\u00e7mek, \u00f6ncelikle proses gereksinimlerinizi anlamakla ba\u015flar.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>S\u0131n\u0131f VI veya API 598 Dayan\u0131kl\u0131l\u0131k \u00f6zelli\u011fini belirtin.<\/strong> \u0130\u00e7me suyu, kimyasal dozlama ve g\u00f6zle g\u00f6r\u00fcl\u00fcr s\u0131z\u0131nt\u0131n\u0131n kabul edilemez oldu\u011fu her t\u00fcrl\u00fc kullan\u0131m i\u00e7in uygundur. Yumu\u015fak contal\u0131 tasar\u0131m, \u00e7o\u011fu ko\u015fulda bu standard\u0131 kar\u015f\u0131lar.<\/li>\n\n\n\n<li><strong>S\u0131n\u0131f IV'\u00fc (API 598 Metal) belirtin.<\/strong> Y\u00fcksek s\u0131cakl\u0131ktaki buhar, yang\u0131na dayan\u0131kl\u0131 servis ve elastomerlerin dayanamayaca\u011f\u0131 rafineri prosesleri i\u00e7in.<\/li>\n\n\n\n<li><strong>Be\u015finci S\u0131n\u0131f\u0131 g\u00f6z \u00f6n\u00fcnde bulundurun.<\/strong> Sadece prosesin kritikli\u011fi ek maliyeti hakl\u0131 \u00e7\u0131kard\u0131\u011f\u0131nda. LNG terminalleri, enerji santrali buhar izolasyonu ve baz\u0131 petrokimya tesisleri bu kategoriye girer.<\/li>\n\n\n\n<li><strong>Test ko\u015fullar\u0131n\u0131 do\u011frulay\u0131n.<\/strong> Veri sayfas\u0131nda belirtilen s\u0131n\u0131f\u0131n, fabrika denetimi s\u0131ras\u0131nda kullan\u0131lan test bas\u0131nc\u0131 ve ortamla e\u015fle\u015fti\u011fini kontrol edin.<\/li>\n\n\n\n<li><strong>Fabrika test sertifikas\u0131 talep edin.<\/strong> Her sipari\u015fle birlikte verilir. Sertifika, tedarik edilen vanan\u0131n, tesisinize ula\u015fmadan \u00f6nce belirtilen s\u0131n\u0131fa uygun oldu\u011funu do\u011frular.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\"><strong>\u00c7\u00f6z\u00fcm<\/strong><\/h2>\n\n\n\n<figure class=\"wp-block-image size-large\"><img loading=\"lazy\" decoding=\"async\" width=\"1200\" height=\"652\" src=\"https:\/\/www.tgvalve.com\/wp-content\/uploads\/2026\/07\/An-image-of-an-engineer-in-an-industrial-plant-reviewing-valve-leakage-class-requirements-to-ensure-correct-butterfly-valve-leakage-performance-for-water-and-steam-1200x652.webp\" alt=\"End\u00fcstriyel bir tesiste \u00e7al\u0131\u015fan bir m\u00fchendisin, su ve buhar i\u00e7in kelebek vanalar\u0131n do\u011fru s\u0131z\u0131nt\u0131 performans\u0131n\u0131 sa\u011flamak amac\u0131yla vana s\u0131z\u0131nt\u0131 s\u0131n\u0131f\u0131 gereksinimlerini g\u00f6zden ge\u00e7irdi\u011fi bir g\u00f6r\u00fcnt\u00fc.\" class=\"wp-image-2514\" srcset=\"https:\/\/www.tgvalve.com\/wp-content\/uploads\/2026\/07\/An-image-of-an-engineer-in-an-industrial-plant-reviewing-valve-leakage-class-requirements-to-ensure-correct-butterfly-valve-leakage-performance-for-water-and-steam-1200x652.webp 1200w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2026\/07\/An-image-of-an-engineer-in-an-industrial-plant-reviewing-valve-leakage-class-requirements-to-ensure-correct-butterfly-valve-leakage-performance-for-water-and-steam-500x272.webp 500w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2026\/07\/An-image-of-an-engineer-in-an-industrial-plant-reviewing-valve-leakage-class-requirements-to-ensure-correct-butterfly-valve-leakage-performance-for-water-and-steam-300x163.webp 300w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2026\/07\/An-image-of-an-engineer-in-an-industrial-plant-reviewing-valve-leakage-class-requirements-to-ensure-correct-butterfly-valve-leakage-performance-for-water-and-steam-768x417.webp 768w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2026\/07\/An-image-of-an-engineer-in-an-industrial-plant-reviewing-valve-leakage-class-requirements-to-ensure-correct-butterfly-valve-leakage-performance-for-water-and-steam-18x10.webp 18w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2026\/07\/An-image-of-an-engineer-in-an-industrial-plant-reviewing-valve-leakage-class-requirements-to-ensure-correct-butterfly-valve-leakage-performance-for-water-and-steam-138x75.webp 138w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2026\/07\/An-image-of-an-engineer-in-an-industrial-plant-reviewing-valve-leakage-class-requirements-to-ensure-correct-butterfly-valve-leakage-performance-for-water-and-steam-480x261.webp 480w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2026\/07\/An-image-of-an-engineer-in-an-industrial-plant-reviewing-valve-leakage-class-requirements-to-ensure-correct-butterfly-valve-leakage-performance-for-water-and-steam-800x435.webp 800w, https:\/\/www.tgvalve.com\/wp-content\/uploads\/2026\/07\/An-image-of-an-engineer-in-an-industrial-plant-reviewing-valve-leakage-class-requirements-to-ensure-correct-butterfly-valve-leakage-performance-for-water-and-steam.webp 1376w\" sizes=\"auto, (max-width:767px) 480px, (max-width:1200px) 100vw, 1200px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">S\u0131z\u0131nt\u0131 s\u0131n\u0131f\u0131n\u0131 uygulaman\u0131za uygun hale getirmek, proses b\u00fct\u00fcnl\u00fc\u011f\u00fcn\u00fc korur ve vanan\u0131n kullan\u0131m \u00f6mr\u00fc boyunca toplam sahip olma maliyetini azalt\u0131r.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Yumu\u015fak contal\u0131 kelebek vanalar ile s\u0131f\u0131r s\u0131z\u0131nt\u0131 elde edilebilir. EPDM, PTFE veya NBR contal\u0131 bu yumu\u015fak contal\u0131 vanalar, ANSI\/FCI 70-2 standard\u0131na g\u00f6re S\u0131n\u0131f VI ve API 598 Resilient standard\u0131na g\u00f6re s\u0131f\u0131r s\u0131z\u0131nt\u0131 \u00f6zelli\u011fine sahiptir. Bu vanalar, standart fabrika test ko\u015fullar\u0131 alt\u0131nda s\u0131f\u0131r s\u0131z\u0131nt\u0131l\u0131 kelebek vana olarak nitelendirilir.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>TG Vanas\u0131<\/strong> S\u0131z\u0131nt\u0131 s\u0131n\u0131f\u0131 gereksinimlerinin tamam\u0131n\u0131 garanti eder. Yumu\u015fak contal\u0131 \u00fcr\u00fcnlerimiz son derece d\u00fc\u015f\u00fck de\u011ferlere ula\u015f\u0131r. <strong>valf yuvas\u0131 s\u0131z\u0131nt\u0131s\u0131<\/strong> \u00c7o\u011fu \u00e7al\u0131\u015fma ko\u015fulunda kullan\u0131labilirler. Su ar\u0131tma, \u0131s\u0131tma, havaland\u0131rma ve iklimlendirme (HVAC), kimyasal izolasyon ve genel end\u00fcstriyel hizmetler i\u00e7in \u00fcretilmi\u015flerdir.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Metal contal\u0131 ve y\u00fcksek performansl\u0131 kelebek vanalar\u0131m\u0131z, zorlu termal, a\u015f\u0131nd\u0131r\u0131c\u0131 ve yang\u0131n g\u00fcvenli\u011fi uygulamalar\u0131 i\u00e7in IV. s\u0131n\u0131f ve \u00fczeri standartlara uygundur.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.tgvalve.com\/tr\/product\/\" target=\"_blank\" rel=\"noreferrer noopener\">T\u00fcm TG Vana \u00fcr\u00fcnleri<\/a> Teslimattan \u00f6nce fabrikada s\u0131zd\u0131rmazl\u0131k testine tabi tutulurlar. Test sertifikalar\u0131 talep \u00fczerine temin edilebilir. \u00dcretimimiz ISO 9001 standartlar\u0131na uygundur, vanalar\u0131m\u0131z ise API 609, API 607, ISO 10497 ve Avrupa CE i\u015faretleme gerekliliklerine uymaktad\u0131r.<\/p>\n\n\n\n<div class=\"wp-block-buttons is-content-justification-center is-layout-flex wp-container-core-buttons-is-layout-fe48e5de wp-block-buttons-is-layout-flex\">\n<div class=\"wp-block-button\"><a class=\"wp-block-button__link has-background wp-element-button\" href=\"https:\/\/www.tgvalve.com\/tr\/contact\/\" style=\"background-color:#1b4ca2\" target=\"_blank\" rel=\"noreferrer noopener\">\u00dccretsiz Teklif Al\u0131n<\/a><\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>Butterfly valve leakage class is a standardized rating that sets the maximum internal leakage allowed through the valve seat when fully closed. ANSI\/FCI 70-2 and API<span class=\"excerpt-hellip\"> [\u2026]<\/span><\/p>\n","protected":false},"author":1,"featured_media":2511,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2484","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-butterfly-valve"],"_links":{"self":[{"href":"https:\/\/www.tgvalve.com\/tr\/wp-json\/wp\/v2\/posts\/2484","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.tgvalve.com\/tr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.tgvalve.com\/tr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.tgvalve.com\/tr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.tgvalve.com\/tr\/wp-json\/wp\/v2\/comments?post=2484"}],"version-history":[{"count":2,"href":"https:\/\/www.tgvalve.com\/tr\/wp-json\/wp\/v2\/posts\/2484\/revisions"}],"predecessor-version":[{"id":2558,"href":"https:\/\/www.tgvalve.com\/tr\/wp-json\/wp\/v2\/posts\/2484\/revisions\/2558"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.tgvalve.com\/tr\/wp-json\/wp\/v2\/media\/2511"}],"wp:attachment":[{"href":"https:\/\/www.tgvalve.com\/tr\/wp-json\/wp\/v2\/media?parent=2484"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.tgvalve.com\/tr\/wp-json\/wp\/v2\/categories?post=2484"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.tgvalve.com\/tr\/wp-json\/wp\/v2\/tags?post=2484"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}