Bellows Seal Gate Valve

Size range : 2”-24”
Class : 150LB -1500LB
Temperature : ≤425℃
Materials:WCB,WC6,WC9,C5,C12,CF8,CF8M,CF3M,SS321,904L etc.
Materials of bellows: SS304, SS316, SS316L,SS321,SS316Ti ,Hastelly C276
Application：Hot oil system, steam system, molten sale and hot and cold water system etc.

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Product Details

Inquiry

Technical specification:
Design Standard: API600 / BS1873
Face To Face: ANSI B16.10
Flange ends: ANSI B16.5
Test & Inspection: API 598

Features and benefits

● Long cycle life bellows (2000 cycles) in Gr. 321 (stainless), Inconel for special applications, (may be replaced with Monel trim to resist corrosion or Hastelloy C for chlorine service).
● Improved body-bonnet joint: Graphite reinforced with SS foil gasket for Class 150 valves. Fully-encased, spiral wound graphite-filled Gr. 316 (stainless) gasket for Classes 300-600.
● Bolted body-bonnet for fast serviceability. Hermetically-sealed bonnets available for Classes 300 and 600.
● Two or three section bellows assembly.
● Non-rotating stemprevents torsion of bellows.
● Two secondary stem seals: a) Backseat in open position; b) Graphite packing.
● Welded-in seat hardfaced with CoCr alloy.
● Wedge hardfaced with CoCr alloy for long life.
● Seating faces hardfaced with CoCr alloy, ground and lapped.

If you have any enquiry about quotation or cooperation,please feel free to email us at info@weke-valves.com or use the following enquiry form. Our sales representative will contact you within 24 hours. Thank you for your interest in our products.

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