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Safety Relief Valve

Model / MPN: 20327 PART 20327H51SS | NSN: 4820-01-448-1419
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
4820-01-448-1419
Sold in multiples of
1 EA
DEMIL
NO
Flow Control Device
Disk
Bolt Hole Quantity
4 all ends
Maximum Operating Temp
100.0 degrees fahrenheit 1st response
Maximum Operating Temp
300.0 degrees fahrenheit 2nd response
End Application
Strategic sealift conversion ships class
Valve Operation Method
Automatic or manual
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Mounting Facility
Bracket
Valve Size
1.000 inches
Adjustable Pressure Range
+45.0/+55.0 pounds per square inch
Maximum Operating Pressure
250.0 pounds per square inch 2nd response
Maximum Operating Pressure
285.0 pounds per square inch 1st response
Outside Diameter
4.250 inches all ends
Thickness
0.438 inches all ends
First Connection Face To Centerline Distance
3.500 inches
Bolt Hole Diameter
0.625 inches all ends
Second Connection Face To Centerline Distance
3.250 inches
Bolt Circle Diameter
3.125 inches all ends
Flange Face Design
Raised straight all ends
Raised Face Height
0.062 inches all ends
Raised Face Diameter
2.000 inches all ends
Material
Steel body
Material
Stainless steel flow control device
Material
Stainless steel seat
Material
Stainless steel stem
Material Specification
Astm a216 gr wcb assn standard single material response body
Material Specification
Astm a582 type 303 assn standard single material response flow control device
Material Specification
Astm a582 type 303 assn standard single material response stem
Material Specification
Astm a582 type 303 assn standard single material response seat
Furnished Items And Quantity
1 wrench
20327H Series Parts
Solicitations
Solicitation Description Qty UOM Close Date
SPE7MC15Q2760 Valve, Safety Relief 2 EA 06/29/2015
SPE7MC15TJ306 Valve, Safety Relief 3 EA 09/14/2015

Pricing and Availability

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20327 PART 20327H51SS Cross Reference
  • CNSNN05SEE
  • 20327H51SS
  • TYPE FF 2751 1.00 IN.
  • CNSNN05SEE
  • 20327
  • 20327 PART 20327H51SS
  • TYPE FF 2751 1.00 IN.