Pressure Relief Valves
Bryan Donkin's line of pressure relief valves are a dependable means
of protecting a regulator or downstream systems, storage vessels
and other systems against overpressure conditions by relieving
the excess gas pressure. Designed to provide protection against
excessive pressure in systems and vessels, suitable for use
as creep relief and as part of stream discrimination in systems
and vessels.
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Model 201
Description : The Model 201 is a high pressure relief
valve,direct-acting, diaphragm operated.
| Threaded Size |
: 3/4", and 1" |
| Pressure |
: Up to 375 PSIG |
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Model 225LP
Description : The Model 201 is a high pressure
relief valve,direct-acting, diaphragm operated.
| Threaded Size |
: 3/4", and 1" |
| Pressure |
: Up to 30 PSIG |
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 Download 225LP Product Configurator |
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Model 225LP2
Description : The Series 225 has three
versions of low pressure relief valves, which are direct-acting,
diaphragm operated. The 225LP2 has the middle inlet
pressure rating of the three models.
| Threaded Size |
: 3/4", and 1" |
| Pressure |
: Up to 60 PSIG |
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Download 225LP2 Product Configurator |
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Model 225LP4
Description : The Series 225 has three
versions of low pressure relief valves, which are direct-acting,
diaphragm operated. The 225LP4 has the highest inlet
pressure rating of the three models.
| Threaded Size |
: 1-1/4", 1-1/2"
and 2" |
| Pressure |
: Up to 150 PSIG |
| Flanged Sizes |
: 1" and 2" |
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Download 225LP4 Technical Brochure |
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Download 225LP4 Product Configurator |
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