A large industrial valve with a blue handwheel, featuring multiple bolted sections, is displayed against a white background. The word “NUCLEAR” appears in a blue label at the bottom right.

Forged Steel Bellows Seal Bolted Bonnet Gate Valves for Nuclear Applications

Product Line

Large forged bolted bonnet valves

Product Type

Gate

Features & Benefits

Available for nuclear class 1, 2, and 3 and safety related applications.

Design features

Long cycle life bellows (2000 cycles) in Gr. 321 (stainless) or lnconel. 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:
a) Non-rotating stem prevents torsion of bellows.
b) Stem nut thrust bearings
c) Central lubrication.
Seating faces hardfaced with Stellite 6, ground and lapped.

Product Details

Spec	Detail
Size Range	NPS 2 - 12 (DN 50 - 300)
Pressure Class	ASME Classes 150 - 1500
Standard Connections	Butt weld ends or flanged connections

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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