PL01 Pressure Limiting Valve

PL01 Pressure Limiting Valve

The Ashcroft® pressure limiting valve-PL01 protects the low pressure instrument assembly from severe pressure spikes.
The Ashcroft® low pressure limiting valve-PL01 is designed to protect sensitive instrumentation by limiting pressure up to a specific set value and will only open once pressure drops down below a certain value. This device is often used to mitigate pressure spikes or other momentatary pressure events that can damage instruments like pressure gauges, switches and transmitters.

Key Features

For use with air and clean gases only

Automatically resets after 30% drop in pressure from set point

Material certificates to EN 10204:2004 3.1

Available set point from 10 to 550 mbar

Prevents damage, loss of accuracy and / or rupture of sensing elements

Isolates and protects instrument assembly from pressure surges beyond the full scale of the measurement instrument

Markets & Applications

Chemical and Petrochemical


Oil and Gas

Machine Automation

Hydrogen and Technical Gases

Pumps and Compressors

  • Specifications
  • Downloads

Temperature Rating

max. 60°C

Wetted Parts Material

Stainless steel 316Ti (1.4571)


Process Connection Style


Instrument Connection Style


Pressure Rating


Process Connection Size


G ½

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