A metallic industrial check valve with flanged ends and bolts on the top. The word "VELAN" is engraved on the body, and a blue label reading "NUCLEAR" appears in the bottom right corner.

Cast Steel Swing Check Valves for Nuclear Applicatons

Product Line

Cast steel gate, globe and check valves

Product Type

Check

Features & Benefits

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

Design features

Body and cover castings are precision machined. Exclusive: Disc shaft does not penetrate body.
Body and cover joint accurately machined. Fully-enclosed gasket.
Disc: Robust one-piece construction to withstand the severe shock of check valve service. Hardfaced with 13Cr, CoCr alloy, SS 316, or Monel, ground and lapped to a mirror finish. Sizes NPS 2–6 (DN 50–150) may have solid CA 15 (13Cr) disc. SS 316 disc with CoCr alloy facing also available.
Disc assembly: Non-rotating disc is fastened securely to disc hanger with a lock nut and cotter pin. Disc hanger is supported on a sturdy disc carrier hinge pin of excellent bearing qualities. All parts are accessible from top for easy servicing.
Flanges
ASME Classes: 150–300: 1⁄16” raised face.
ASME Classes: 600–1500: ¼” raised face.
Finish: 125–250 AARH for all valves.

Product Details

Spec	Detail
Size Range	NPS 2–48 (DN 50–1200)
Pressure Class	ASME Classes 150-1500
Standard Connections	Flanged or 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