RED POINT®
Bellow Sealed Gate Valves
In particular chemical processes the fluids in the pipes are often toxic, radioactive and hazardous. Bellow sealed valves are used to prevent leakage of any toxic chemical to the atmosphere. The bellow can be supplied in different materials like 316Ti, 321, C276 or Alloy 625. Body material can be selected from all available materials.
Advantages are:
Long cycle life bellows – 3000 cycles
Non-rotating stem prevents torsion of bellows.
Two secondary stem seals: a) Backseat in open position; b) Graphite packing.
Seating faces hardfaced with CoCr alloy, ground and lapped.
TYPE OF WEDGE
Flexible
Solid
CONSTRUCTION
Bolted
Welded
Extended
END CONNECTIONS
Flanged
BW
SW
THR
HUB
PE
OPERATED
Handwheel
Gear
Bare Stem
Actuator
OPTIONS
Extended Bonnet
Bellow Sealed
Heating Jacket
DBB Configuration
BELLOW SEAL MATERIALS
304
321
316Ti
Alloy 625
C276
DESIGN & TESTING
All available international standards according to API, EN, ISO
Thoroughly degreased and cleaned for O2 services
SIZE & BORE
ANSI 1/2 – 12”
DN 10 – DN 300
PRESSURE RANGE
ANSI 125 – 4,500 lbs.
DIN PN 10 – PN 400
Bellow Seal Materials
Applications
Body Materials Available
Nickel Alloys (Monel®, Inconel®, Hastelloy®, Incoloy®), Duplex and Super Duplex, Carbon Steel and Low Temp Carbon Steel, Low Alloy Steel, Stainless Steel, Titanium, Zirconium
