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Safety Relief Valve

Model / MPN: 1990C-1-XDA1 .75IPS 135PSI | NSN: 4820-01-367-4772
ITAR Registered seal

A valve designed to automatically release excessive pressures. It is actuated by static pressure upstream of the valve and is used as a safety valve or relief valve, and may be set to close at a predetermined pressure. It is not designed for regulation of continuously fluctuating loads. It may be inline or cartridge (manifold) design. Excludes valve (1), relief, pressure and temperature.

Product Details
NATO Stock Number
4820-01-367-4772
Sold in multiples of
1 EA
DEMIL
NO
Pipe Size Accommodated
0.750 inches 2nd end
Pipe Size Accommodated
1.000 inches 1st end
Flow Control Device
Disk
Disk Loading Method
Spring
Maximum Operating Temp
400.0 degrees fahrenheit single response
Minimum Operating Temp
-20.0 degrees fahrenheit
Valve Operation Method
Automatic
Connection Type
Unthreaded internal pipe all ends
Maximum Operating Pressure
2000.0 pounds per square inch single response
Opening Pressure Setting
135.0 pounds per square inch
Material
Steel comp 316 body
Material
Steel comp 316 flow control device
Material
Steel comp 410 stem
Material Specification
Astm a276, cond t assn standard single material response stem
Material Specification
Astm a479 assn standard single material response body
Material Specification
Astm a479 assn standard single material response flow control device
Media For Which Designed
Steam 2nd response
Media For Which Designed
Air 1st response
Furnished Items And Quantity
1 lever
1990C Series Parts
Solicitations
Solicitation Description Qty UOM Close Date
SPE7M118T431H Valve, Safety Relief 1 EA 06/25/2018

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1990C-1-XDA1 .75IPS 135PSI Cross Reference
  • 0.75-19110C0-1-CC-DA-31-MTFTGS
  • 1990