LPG

Internal pressure relief valves for LPG/NH3 equipment protection

Internal relief valves are commonly used to protect equipment like mobile tanks and containers. They prevent over-pressure accidents and are specifically designed for ASME tanks and containers while others suit bobtail and transport trucks and construction equipment.

Product description

These valves come in fully or semi-internal types to conform to different installation requirements. Unlike the standard full-range gradual relief, these internal pressure relief valves feature a 'pop-action' functionality that ensures a full discharge once pressure exceeds a predetermined limit.

Material

Body: Stainless steel, brass
Spring: Stainless steel, steel, coated steel
Stem: Stainless steel
Seat disc: Resilient rubber, resilient synthetic rubber or Viton
Stem bushing: 17 to 4PH stainless steel

Specifications

Gas types: LPG (Propane, Butane), NH3 (Ammonia, Anhydrous Ammonia)
Connections: Thread
Types: NPT
Pressure range: Max. 27 bar (391 psi)
Capacity: Max. 453 m³/h
Sizes and range: 3/4" to 3"
Standards: UL listed, ASME

*Materials and specifications are subject to generalisation. Our experienced people are ready to help you find the correct fit for your application.

Features

Low profile design (no shearing or distortion)
Tamper-proof functioning parts
Longer spring size to minimise stress cracking in service
Easy installation and removal
High capacity - low turbulence
Dependable shut-off after opening
Built-in spring stop
'Pop-action' minimising product loss
Automatic re-seating after pressure equalisation

Did you know?

Internal valves are suitable for many different applications

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