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

Safety Relief Valve

Model / MPN: 20381 ASSY 2038101E0055 | NSN: 4820-01-437-4802
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
4820-01-437-4802
Sold in multiples of
1 EA
DEMIL
NO
Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Bolted
Disk Loading Method
Spring
Bolt Hole Quantity
4 all ends
Maximum Operating Temp
100.0 degrees fahrenheit single response
End Application
Wasp class lhd
Valve Operation Method
Automatic
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Mounting Facility
Bracket
Valve Size
0.500 inches
Maximum Operating Pressure
285.0 pounds per square inch single response
Opening Pressure Setting
55.0 pounds per square inch
Outside Diameter
3.500 inches all ends
Thickness
0.375 inches all ends
First Connection Face To Centerline Distance
1.670 inches
Bolt Hole Diameter
0.625 inches all ends
Second Connection Face To Centerline Distance
1.670 inches
Bolt Circle Diameter
2.375 inches all ends
Flange Face Design
Raised straight all ends
Raised Face Height
0.062 inches all ends
Raised Face Diameter
1.375 inches all ends
Material
Plastic polytetrafluoroethylene packing
Material
Stainless steel flow control device
Material
Stainless steel seat
Material
Stainless steel stem
Material
Steel uns j03002 body
Furnished Items And Quantity
4 nut
2038101E Series Parts

Pricing and Availability

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20381 ASSY 2038101E0055 Cross Reference
  • 2038101E0055
  • 20381 ASSY 20381
  • 2038101E0055