Cryogenic Check Valve

Cryogenic Check Valve Manufacturer in Nigeria offer non-return solutions for LNG, liquid nitrogen, oxygen, argon and other low-temperature media, where preventing reverse flow is essential. The valve closes automatically when flow changes direction, helping protect cryogenic pumps, compressors, storage vessels and transfer systems from backflow. Depending on line conditions, swing, lift and other check-valve configurations can be selected for the required pressure, flow direction and installation arrangement.

Valve Features

• Automatic non-return operation - Closes when flow reverses without requiring an external actuator.

• Cryogenic-compatible construction - Materials are selected for the specified minimum temperature.

• Low-temperature seating - Seat materials are matched to the medium and operating conditions.

• Controlled pressure drop - Internal design can be selected to maintain efficient flow.

• Reverse-flow protection - Helps protect pumps, compressors and downstream equipment.

• Multiple configurations - Swing, lift and other designs can be selected according to service.

• Flanged or welded ends - Connection type can be matched to the piping system.

• Cryogenic testing - Testing can be specified according to project requirements.

Technical Specifications

Materials & Components

Testing Standards

Depending on the valve construction, applicable standards may include API 594, BS 1868 and ASME B16.34, while BS 6364 and ISO 28921-1 may apply to relevant cryogenic and low-temperature requirements. The exact standard, testing procedure and temperature qualification should be confirmed against the selected valve design and project specification.