Products
Liquid Pumps
Refrigerant Pumps
Gas Boosters
Air Pressure Amplifiers
Haskel Systems
BuTech Valves, Fittings and Tubing
Haskel Valves
Industries & Applications
Aerospace and Defense
Automotive
Fluid Power
Oil and Gas
General Industry
Aftermarket
Recommend Service Center in EMEA & Americas
ONSITE Service Program
Service & Technical Support
Spare Parts
Warranty Information
About Us
Document Library
Who We Are
News
Careers
Back to the product list

Hydrogen Check Valves

Rugged construction provides assurance of fail-safe operation at pressures up to 20,000 PSI (1378 BAR). For operation in temperatures ranging from -320° to 500°F (-195° to 260°C).

Haskel's BuTech line provides high-pressure check valves specifically engineered for hydrogen service, designed to mitigate issues like hydrogen embrittlement. These valves are critical for ensuring unidirectional flow and preventing backflow in hydrogen storage, compression, and dispensing systems.

  • Standard hydrogen-specific models are rated up to 20,000 PSI (1,380 bar).
  • Some specialized high-pressure check valves can handle up to 100,000 PSI (6,895 bar).
  • Material Construction: Built using 316 cold-worked stainless steel and other hydrogen-resistant alloys to ensure long-term integrity in high-pressure gas environments.
  • Temperature Range: Designed to operate in extreme conditions, typically from -320°F to 500°F (-195°C to 260°C).
  • Fail-Safe Operation: Rugged construction provides reliable performance in mission-critical applications like hydrogen refueling stations and fuel cell testing

Operating Temperature Ranges

 

O-Ring Material

Operating Temp Range

Catalog Suffix

Viton

-40° to +500° F

-

(-40° to +260° C)

Teflon

-320° to +400° F

-TFE

(-195° to +204° C)

 

 

Catalog Number

Connection

MAWP

Cv

A

B

C

D

20SC4-N-2-H2-S

1/4” M/P Tube

20,000 PSI (1378 BAR)

0.25

2.94” (74.7)

2.50” (63.5)

1.00” (25.4)

0.88” (22.4)

20SC6-N-2-H2-S

3/8” M/P Tube

20,000 PSI (1378 BAR)

0.8

3.12” (79.2)

2.62” (66.5)

1.12” (28.4)

0.88” (22.4)

20SC9-N-2-H2-S

9/16” M/P Tube

20,000 PSI (1378 BAR)

2.30

4.23” (107.4)

3.50” (88.9)

1.38” (35.1)

1.38” (35.1)

20SC12-N-2-H2-S

3/4” M/P Tube

20,000 PSI (1378 BAR)

3.40

5.89” (149.6)

4.75” (120.7)

1.75” (44.5)

1.38” (35.1)

20SC16-N-H2-S

1” M/P Tube

20,000 PSI (1378 BAR)

7.4

6.50” (165.1)

5.55” (141.0)

2.12” (53.8)

1.75” (44.5)

 

Configure seal kits or search parts in seconds
Hydrogen Check Valves diagram
Access the data sheet, installation manual or other technical documents you need by using our Technical Resources Finder. Simply apply the filters or type your query into the search field to locate the right document.