• Red Point Gate Valve Ext Bonnet

Red Point®

Gate Valves With Extended Bonnet

An extended bonnet is used for both low temperature and high temperature applications. The extended bonnet has the function of protecting the stuffing box and prevent leakage of the stempacking.

Low temperature applications and types of medium examples include: LNG applications, ethylene liquid, oxygen, liquid hydrogen, and liquefied natural gas.

High temperature applications and types of medium examples include: steam applications, sour service.

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

Extended Bonnet

The Red Point® gate valves can be supplied with extended bonnets for high or low temperature applications like cryogenic services. The extended bonnet allows the valve to be wrapped with insulation without interfering with the handwheel. By increasing the bonnet length the stem seal will be further away from the flowing fluid, thereby reducing the effects of the temperature extremes.

Hard Facing Disc Benefits

  • Wedge and seats are ground and lapped to a mirror finish and tightly guided to prevent dragging and seat damage
  • Body and bonnet joint accurately machined with high surface finish stem and packing chamber
  • Low emission valve technology optimized for extended service life
  • Low compression packing reduces friction and allows more room to re-torque in the field
  • Packing ring construction provides excellent sealing and is a corrosion inhibitor
  • Option: live loaded gland bolting
  • Lantern ring with double packing (upper & lower) for critical services

Red Point’s gate valves with extended bonnet can be deployed for a wide variety of applications in the oil & gas and petrochemical industries when high quality, reliable valves are required. A few example applications include:

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

Nickel Alloys (Monel®, Inconel®, Hastelloy®, Incoloy®), Duplex and Super Duplex, Carbon Steel and Low Temp Carbon Steel, Low Alloy Steel, Stainless Steel, Titanium, Zirconium

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