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Bellows Sealed Globe Valves

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  • Design standard
  • ASME B16.34
  • Face to face dimension
  • ASME B16.10
  • Flanged ends
  • ASME B16.5
  • Test & inspection
  • API 598
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Bellows Sealed Globe Valves Introduction

Bellows Seal Globe Valve is a compact structure that is a kind of control valve which uses bellows for sealing the valve stem components. The bellows valve has a bellow inside, and the lower end of the stainless-steel bellows is welded to the stem to prevent the system fluid from eroding the stem.

Bellows Sealed Globe Valves Feature

1.  Bellow seal element. The key part of bellow sealed globe valves is metal bellow. It is the connection between cover and stem by automatic roll welding. The metal bellow can keep the stem part zero leakage.
2. Benefitted from the cone and streamline shape design, the disc has reliable sealing performance and longer sevice life.
3. Double seal design(Bellows+packing).Bellow and packing can protect from leakage and provide excellent sealing performance.
4.Grease nipple. It can directly Lubricate the stem, nut and sleeve.

5.Ergonomic hand wheel. It provide longer service life and easier operation.

  • Long cycle life bellows (10,000 cycles): Designed and qualification tested for high pressure/temperature applications.

  • Bellows monitoring port (optional): A plug can be connected to the space above the bellows to monitor performance.

  • Two secondary stem seals: a) Backseat in open position; b) Graphite packing.

  • Superior seating faces: Seats hardfaced with CoCr alloy, disc is solid CoCr alloy. 


Bellows Sealed Globe Valves Specification 

  • Size and bore:
    - ANSI 1/4” - 16”
    - DN 6 - DN 400

  • Pressure range:
    - ANSI 125 lbs - 4500 lbs
    - DIN PN 10 - PN 400

  • Temperature range:
    - minus 196 ºC up to 816 ºC
    - minus 320 °F up to 1,500 °F


Body
WCB,CF8,CF3
Seat
304,Stellite
Disc
13Cr,F304,F316
Pin
S.S304,S.S316
Bellow 
S.S304,S.S316L
Stem
13Cr,F304,F316
Gasket
stainless steel+flexible graphite
Bonnet
WCB,CF8,CF3
Nuts
ASTM 194-2H,A194-8
Double-headed bolt
ASTM 194-2H,A194-B8
Packing 
Flexible Graphite
Gland
WCB,CF8,CF3
Jack bolt
ASTM 194-B7,A193-B8
Nut
ASTM 194-2H,A194-8
Locator
1045
Stem Nut
Copper alloy,B2,BL2
Handwheel
1025/KTH330
Cap
1025



-Manuals

Bellows Sealed Globe Valves

-Data sheet


Bellows Sealed Globe Valves Application

  • CO2 Reactor Cooling Circuit - Nuclear Power Plant

  • Radioactive Waste Water – Nuclear Plant

  • Liquid Sodium Heat Exchange Circuit – Titanium Production

  • Liquid Sodium Calciner Circuit - Magnesium Refining Plant

  • Decay Stores Containment – Nuclear Power Plant

  • Contaminated Stream Container – Nuclear Power Plant

  • Liquid Sodium/Potassium ‘Alloy’ Decontaminator Circuits – Decommissioning Nuclear Plant

  • Nitric Acid Containment – Nuclear Plant

  • Liquid Nitrogen Cooling Circuit – Space Rocket Engine Test

  • Liquid CO2 Storage Tank Filling – Special Gas Manufacturing

  • Petroleum Refining Circuits – Oil Refinery

  • Vacuum Containment – Cryogenic Plant

  • Liquid Sodium Circuits (FBR)

  • Fast Breeder Reactor (FBR)

  • Boiling Water Reactor (BWR)

  • Pressurized Water Reactor (PWR )

  • Liquid Lead-Bismuth Eutectic (LBE) - Nuclear Reactor Research

  • Liquid Lead Alloy - Nuclear Research

  • Heavy Water - Nuclear Power Plant


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