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Worldwide distributor of NSN parts and consumables located in the USA.

Safety Relief Valve

Model / MPN: 8720M0D | NSN: 4820-00-237-5791
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
4820-00-237-5791
Sold in multiples of
1 EA
DEMIL
DEMIL/MLI
Pipe Size Accommodated
1.000 inches 1st end
Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Bolted
Disk Loading Method
Spring
Renewable Seat Ring Type
Threaded
Maximum Operating Temp
180.0 degrees fahrenheit single response
Valve Operation Method
Hydraulic
Connection Type
Unthreaded internal pipe 1st end
Features Provided
Pressure tight outlet side
Adjustable Pressure Range
+5.0/+1500.0 pounds per square inch
Maximum Operating Pressure
1500.0 pounds per square inch single response
Criticality Code Justification
Zzzy
Opening Pressure Setting
185.0 pounds per square inch
Material
Copper alloy 922 body
Material
Nickel alloy 400 seat
Material
Nickel alloy 400 stem
Media For Which Designed
Water, fresh single response
Style Designator
Angle
Reference Number Differentiating Characteristics
Material will be in accordance with ships parts control center activity hx quality control, manufacturing and testing specifications
8720M Series Parts

Pricing and Availability

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8720M0D Cross Reference
  • E8720PM41M