API 623 Cast Steel Bellows Seal Globe Valve

Product Line

Cast steel gate, globe, and check valves

Product Type

Globe

Features & Benefits

Long cycle life bellows (3000 cycles) in Gr. 321 (stainless), Inconel for special applications, or Hastelloy C for chlorine service.
Bolted body-bonnet joints for fast serviceability. Fully enclosed spiral wound Gr. 316 (stainless) graphite gaskets.
Non-rotating stem prevents torsion of bellows.
Two-secondary stem seals:
a) Back seat in open position;
b) Graphite packing.
Bellows monitoring port (optional): A plug can be connected to the space above the bellows to monitor performance.
Seat and disc hardfaced with CoCr alloy, ground and lapped.

Product Details

Spec	Detail
Size Range	NPS 2 - 8 (DN 50 - 200)
Pressure Class	ASME classes 150 - 600
Standard Connections	Flanged, 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.

The Velan Library