Cryogenic Control Valves

HEVC cryogenic control valves bring modulating flow regulation to low-temperature process systems. The extended-neck, pneumatically actuated configuration provides a dedicated control-valve option alongside cryogenic isolation valves for LNG, LPG, air-separation and ethylene applications.

Technical Specifications	Product Scope
Valve Type	Cryogenic regulating valve
Duty	Modulating process-flow control
Actuation	Pneumatic diaphragm actuator
Construction	Extended-neck arrangement with stem and yoke assembly
Ends	Flanged configuration
Applications	LNG / LPG / air separation / ethylene

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Description

Design & Construction

Modulating control duty

A dedicated regulating-valve configuration provides continuous flow adjustment rather than simple on/off isolation.
Pneumatic actuation

The illustrated configuration uses a pneumatic diaphragm actuator with a stem-and-yoke connection.
Extended-neck arrangement

The extended neck creates physical separation between the cold process body and the upper operating assembly.

Typical Duty / Applications

LNG and LPG processes

Regulation of low-temperature process flow.
Air separation

Control-valve service in cryogenic process circuits.
Ethylene systems

Modulating flow duty in low-temperature ethylene applications.