Cryogenic Cast Gate Valve

NSV Cryogenic Gate Valve

This cryogenic gate valve is engineered for reliable on/off service in extreme low-temperature applications, including LNG, liquid oxygen, nitrogen, and argon systems. Featuring an extended stem design and low-temperature certified cast stainless steel construction, it ensures safe, leak-tight operation down to –196°C. Available in sizes up to 48" and pressure ratings up to Class 2500 for demanding cryogenic infrastructure.

Key Features

Body Material CF8, CF8M, CF3, CF3M, or other cast material

Operation Manual handwheel (gear operator optional for large sizes)

Pressure Rating Up to Class 2500

Size Range 2" to 48" (DN50–DN1200)

Valve Type Full port, rising stem, flexible wedge gate

Stem Design Extended stem for cryogenic service

Testing Low temperature testing per API 607

Design Standard API 607

Operation & Advantages

The valve uses a rising stem with a flexible wedge gate that provides tight shut-off even under thermal cycling. The extended stem isolates the packing area from the cryogenic fluid, preventing freezing of the stem seal and ensuring smooth operation. Each unit undergoes rigorous low-temperature testing at –196°C to validate material toughness and sealing performance. The full-port design minimizes pressure drop in high-flow cryogenic lines.

Typical Applications

Deployed in LNG export terminals, cryogenic storage facilities, air separation plants, rocket propellant systems, and large-scale industrial gas distribution networks.

Quality Control & Service

Manufactured in accordance with ASME B16.34 and API 607. All materials are traceable and tested for impact resistance at cryogenic temperatures. Comprehensive documentation—including material certifications and test reports—is supplied. Engineering support includes cryogenic system integration, installation review, and commissioning assistance.

FAQ

1. Q:Do you have customized valve?

A:Yes,we can supply customized valves.

2. Q: What kinds of valves do you manufacture?

A: We usually manufacture valves made of various materials such as cast Iron/ carbon steel,stainless steel,Alloy steel and industrial valves such as ball, gate, globe, check, bellows seal and ETC. For detail information, please refer to " Download>E-Catalog” of homepage.

3. Q:Do you have customized valve?

A:Yes,we can supply customized valves.

4.Q:How can I visit your company?

A: We always welcome you to factory. However, your visit intention shall be pure. You can visit factory conveniently by noticing your visit to the department in charge depending on your visit purpose in advance. For the way to factory, please refer to map“About Us” of homepage.