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Bolted bonnet forged bellows seal flexible wedge gate valves

Product Line
  • Large forged bolted bonnet valves
Product Type
  • Gate

Features & Benefits

  • Long cycle life bellows (2000 cycles) in Gr. 321 (stainless) or Inconel. Designed for, and successfully tested in high pressure/temperature conditions.
  • Bellows monitoring port (optional): Connected to the space above the bellows to monitor performance.
  • Non-rotating stem prevents torsion of bellows.
  • Two secondary stem seals: a) Backseat in open position; b) Graphite packing.
  • Forged for higher safety: Increased toughness, strength and fatigue resistance.
  • Two-part bellows.
  • Low torque due to: a) Non-rotating stem prevents torsion of bellows; b) Stem nut thrust bearings; c) Central lubrication.
  • Seating faces hardfaced with CoCr alloy, ground and lapped.

Product Details

Spec Detail
Size Range NPS 2 1/2 - 6
(DN 65 - 150)
Pressure Class ASME Classes 600 - 1500
Standard Connections Butt weld

Quality That Lasts

Precision Engineered

Our products, crafted with cutting-edge precision, set the industry standard for quality, reliability, and versatility across an expansive range of applications.

Long-Lasting & Durable

Velan leverages advanced engineering capabilities and innovation to create durable valves that meet critical industrial needs in the areas of nuclear power, mining, oil and gas, and more.

Certified & Tested

Innovation is our DNA. From our first steam trap to advanced cutting-edge valve designs, we are committed to providing solutions that define the highest standards of quality and performance.

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