{"id":4205,"date":"2018-12-07T16:54:38","date_gmt":"2018-12-07T16:54:38","guid":{"rendered":"https:\/\/www.stvvalves.com\/?post_type=product&p=4205"},"modified":"2025-02-17T18:19:47","modified_gmt":"2025-02-17T10:19:47","slug":"forged-steel-bellows-gate-valve-300lb-large-female-flange","status":"publish","type":"product","link":"https:\/\/www.stvvalves.com\/fr\/products\/forged-steel-bellows-gate-valve-300lb-large-female-flange\/","title":{"rendered":"Bride femelle en acier forg\u00e9e de soufflets de la soupape \u00e0 vanne 300LB grande"},"content":{"rendered":"

Our Services
\nPre-sale service:
\n1.We have full stock and can deliver within short time.
\n2.OEM and ODM order are accepted, Any kind of logo printing or design are available.
\n3.Good Quality + Factory Price + Quick Response + Reliable Service, is what we are trying best to offer you.
\n4.All of our products are produced by our professional workman and we have our high-work-effect foreign trade team, you can totally believe our service.
\nAfter you choose:
\n1. We will count cheapest shipping cost and make invoice to you at once.
\n2. Check quality again, then send out to you at 1-2 working day after your payment
\n3. Email you the tracking no., and help to chase the parcels until it arrive you.
\nAfter-sale service:
\n1.We are very glad that customers give us some suggestion for price and products.
\n2.If you have any question,please contact us freely by E-mail or Telephone.<\/p>\n

 <\/p>\n

What is a bellows sealed valve?<\/p>\n

A\u00a0Bellow Sealed Valve<\/b>\u00a0is a industrial process\u00a0valve<\/b>\u00a0designed to eliminate\u00a0valve<\/b>\u00a0leakage and are also known as ‘Zero Leak\u00a0Valve<\/b>‘ or ‘Emission Free\u00a0Valve<\/b>. … A\u00a0bellow<\/b>\u00a0is a long accordion-like tube. As the\u00a0valve<\/b>\u00a0stem strokes, the\u00a0bellow<\/b>\u00a0expands or compresses with the stroke movement..<\/span><\/p>\n

 <\/p>\n

Why bellow seal valves are used?<\/p>\n

The use of a\u00a0bellows seal valve<\/b><\/span>\u00a0significantly reduces external leakage. By covering the circumference of the\u00a0valve<\/b>\u00a0stem with\u00a0bellows<\/b>, leakage from the gland<\/span> components is reduced.<\/p>\n

 <\/p>\n

How Do Bellows Seal Valves Work<\/b>? <\/span><\/p>\n

These\u00a0valves<\/b>\u00a0feature an accordion like\u00a0bellows<\/b>\u2014i.e., the\u00a0bellows<\/b>\u00a0cartridge component, welded to the\u00a0valve<\/b>\u00a0stem and bonnet. During the\u00a0valve<\/b>\u00a0stroke the\u00a0bellows<\/b>\u00a0compress or expand along with the sliding stem’s linear motion with little to no friction.<\/span><\/p>\n\n\n\n\n\n\n\n
DN 15 – DN 50<\/b><\/strong><\/span><\/td>\n<\/tr>\n
150# \/ 300#<\/b><\/strong><\/span><\/td>\n<\/tr>\n
<\/td>\nC.S<\/b><\/strong><\/span><\/td>\nS.S<\/b><\/strong><\/span><\/td>\nLow temp.<\/b><\/strong><\/span><\/td>\n<\/tr>\n
T min.<\/b><\/strong><\/span><\/td>\n-29\u00b0C<\/b><\/strong><\/span><\/td>\n-29\u00b0C<\/b><\/strong><\/span><\/td>\n-29\u00b0C<\/b><\/strong><\/span><\/td>\n<\/tr>\n
T max.<\/b><\/strong><\/span><\/td>\n+425\u00b0C<\/b><\/strong><\/span><\/td>\n+538\u00b0C<\/b><\/strong><\/span><\/td>\n+425\u00b0C<\/b><\/strong><\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n\n\n\n\n\n\n\n
Materials<\/b><\/strong><\/span><\/td>\nA105 & LF2<\/b><\/strong><\/span><\/td>\nF316\/F304<\/b><\/strong><\/span><\/td>\n<\/tr>\n
150#<\/span><\/td>\n300#<\/span><\/td>\n150#<\/span><\/td>\n300#<\/span><\/td>\n<\/tr>\n
HYDRO<\/span><\/td>\nSHELL<\/span><\/td>\n30<\/span><\/td>\n77<\/span><\/td>\n29<\/span><\/td>\n75<\/span><\/td>\n<\/tr>\n
SEAT<\/td>\n22<\/td>\n57<\/td>\n21<\/td>\n55<\/td>\n<\/tr>\n
AIR<\/td>\nSEAT<\/td>\n7<\/td>\n7<\/td>\n7<\/td>\n7<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

<\/h4>\n

Testing Pressure in bar (API 598) :<\/h4>\n\n\n\n\n\n\n\n\n\n\n
DN<\/b><\/strong><\/span><\/td>\nL<\/b><\/strong><\/span><\/td>\nH closed<\/b><\/strong><\/span><\/td>\n\u00d8D<\/b><\/strong><\/span><\/td>\n\u00d8C<\/b><\/strong><\/span><\/td>\nCv<\/b><\/strong><\/span><\/td>\nWeight (approx.)<\/b><\/strong><\/span><\/td>\n<\/tr>\n
[mm]<\/td>\n[mm]<\/td>\n[mm]<\/td>\n[mm]<\/td>\n<\/td>\n[kgs]<\/td>\n<\/tr>\n
15<\/td>\n86<\/td>\n200<\/td>\n100<\/td>\n9<\/td>\n2.5<\/td>\n2.5<\/td>\n<\/tr>\n
20<\/td>\n92<\/td>\n210<\/td>\n100<\/td>\n12<\/td>\n3.5<\/td>\n2.5<\/td>\n<\/tr>\n
25<\/td>\n106<\/td>\n220<\/td>\n100<\/td>\n17<\/td>\n6<\/td>\n4<\/td>\n<\/tr>\n
32<\/td>\n130<\/td>\n290<\/td>\n150<\/td>\n23<\/td>\n12<\/td>\n7.5<\/td>\n<\/tr>\n
40<\/td>\n130<\/td>\n300<\/td>\n150<\/td>\n25<\/td>\n12<\/td>\n8<\/td>\n<\/tr>\n
50<\/td>\n145<\/td>\n315<\/td>\n150<\/td>\n30<\/td>\n28<\/td>\n13.5<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

 <\/p>\n","protected":false},"excerpt":{"rendered":"

Mod\u00e8le\u00a0: WZ41Y-300LB<\/p>\n

Les vannes \u00e0 soufflet en acier forg\u00e9 sont principalement utilis\u00e9es sur les canalisations de divers syst\u00e8mes de centrales thermiques, et le support pour couper ou connecter le support de canalisation convient pour\u00a0: L'eau, la vapeur et d'autres fluides non corrosifs forgent des vannes en acier par rapport \u00e0 d'autres produits de vannes. se caract\u00e9risent par une temp\u00e9rature et une pression \u00e9lev\u00e9es, une conception auto-obturante unique, plus la pression est \u00e9lev\u00e9e, plus l'\u00e9tanch\u00e9it\u00e9 est fiable. En raison des caract\u00e9ristiques techniques de performance, les conditions particuli\u00e8res des conditions de travail font que le produit constitue \u00e9galement une caract\u00e9ristique qui ne peut pas \u00eatre remplac\u00e9e par d'autres produits.<\/p>\n

Caract\u00e9ristiques et avantages
\n\u25cf Une conception compacte mais extr\u00eamement robuste pour un service \u00e0 haute pression et temp\u00e9rature.
\n\u25cf Cale en alliage CoCr solide (en option) garantissant un faible frottement et une longue dur\u00e9e de vie.
\n\u25cf Pour les vannes Classe 1500 et pour service vapeur, les si\u00e8ges sont soud\u00e9s de mani\u00e8re \u00e9tanche au corps.
\n\u25cf Les anneaux de garniture sont pr\u00e9comprim\u00e9s \u00e0 4 000 psi pour fournir une \u00e9tanch\u00e9it\u00e9 \u00e9lev\u00e9e.
\n\u25cf Pour les vannes \u00e0 chapeau soud\u00e9, le chapeau est filet\u00e9 et serr\u00e9 \u00e0 une valeur de couple d'ing\u00e9nierie et le joint du corps du chapeau est soud\u00e9, offrant une double protection contre les fuites. (Filetages corps\/capot et solidit\u00e9-soudure).
\n\u25cf La cale enti\u00e8rement guid\u00e9e r\u00e9duit l'usure des surfaces d'assise.
\n\u25cf Entra\u00eenement de tige en 2 pi\u00e8ces r\u00e9parable.
\n\u25cf Des vannes \u00e0 guillotine parall\u00e8le \u00e9galement disponibles.
\n\u25cf Conception en option disponible avec double garniture, raccord anti-fuite, chargement dynamique et sortie de garniture pour un retrait facile de l'ancienne garniture.<\/p>\n

Vanne \u00e0 bride scell\u00e9e \u00e0 soufflet en acier forg\u00e9<\/p>\n

d\u00e9tails du produit
\nTaille : 1\/2\u2033- 2\u2033
\nPression\u00a0: classe 150LB-600LB
\nMat\u00e9riel : A105, F22, LF2, F304, F316, F304L, F316L
\nNorme de conception\u00a0: API602, BS 5352
\nNorme face \u00e0 face\u00a0: ANSI B16.10
\nNorme de bride\u00a0: ANSI B16.5
\nType d'al\u00e9sage\u00a0: al\u00e9sage r\u00e9duit, al\u00e9sage complet.<\/p>\n

 <\/p>\n

STV Valve Technology Group Co., Ltd est un leader professionnel Chine API Vanne \u00e0 vanne scell\u00e9e \u00e0 soufflet en acier forg\u00e9, Vanne \u00e0 vanne \u00e0 soufflet, Vannes \u00e0 soufflet, Vanne \u00e0 soufflet de Chine, Vanne \u00e0 vanne \u00e0 bride scell\u00e9e \u00e0 soufflet en acier forg\u00e9, Vannes scell\u00e9es \u00e0 soufflet en acier forg\u00e9, Forg\u00e9 Vanne \u00e0 vanne scell\u00e9e \u00e0 soufflet en acier, fabricant de vanne \u00e0 vanne scell\u00e9e \u00e0 soufflet en acier forg\u00e9 de haute qualit\u00e9 et \u00e0 prix comp\u00e9titif.<\/p>\n

Veuillez contacter notre sales@stvvalve.com pour d'autres mat\u00e9riaux et d\u00e9tails.<\/p>\n

Feuille de dates\u00a0:
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