Bellow Sealed Globe Valve Design Standards

Type of disc Plug, needle, swivel, regulating disc
Construction Bolted, welded, extended, pressure seal bonnet
Pattern Straight, Angle, Y-type
End connections Flanged, BW, SW, THR, HUB
Options Extended bonnet, bellow sealed, Heating Jacket, Screw-down/non-return
Seating options Soft or metal seated, renewable, HF
Operated Handwheel, actuator operated, bare stem
Bellow seal materials 304 - 321 - 316Ti - Alloy 625 - C276
Design & testing All available international standards according to API - EN - ISO
Fire safe design

Size and pressure ranges

  • 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

Types of bellows

No torsion of bellows, proper stem guiding of non-rotating stem prevents torsionof bellows and ensure long cycle life
Long cycle life of bellows +10,000 cycles

In particulair chemical processed the fluids in the pipes are often toxic, radioactive and hazardous. Bellow sealed valves are used to prevent leakage of any toxic chemicals to the atmosphere. The Bellow can be supplied in different materials like 316Ti, 321, C276 or Alloy 625. The body materials used for the valves are basicly available in all available materials. Red Point has a large inventory of bellows to cover a range of valves from 1/2″ to 2″ with a pressure rating of 150 lbs to 1,500 lbs.

Applications for Bellow Sealed Globe Valves

Red Point’s bellow sealed globe valves can be deployed for a wide variety of applications in the oil & gas and (petro)chemical industries when high quality and highly reliable valves are required. A few example applications include:

• High-temperature services
• High-cycle and switching services
• Emergency shutdown valves (ESDV)
• High-integrity pressure protection system (HIPPS)
• High-pressure oxygen, nitrogen or hydrogen
• Solids handling (powders, fines, dust and catalysts)
• Polyethylene or polypropylene
• Coal conversion and gasification
• Thermal fluids
• Separator, filter and drying systems
• Compressor stations
• On/off isolation service
• Oil and gas manifolds

Body Material

Commonly used body materials




– Nickel Alloys (Monel®, Inconel®, Hastelloy®, Incoloy®)
– Duplex and Super Duplex
– Carbon steel and low temp carbon steel
– Low alloy steel
– Stainles steel
– Titanium
– Zirconium

View all materials

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