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Safety Relief Valve

Model / MPN: 636B-2-3/4-2 | NSN: 4820-00-163-0498
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
4820-00-163-0498
Sold in multiples of
1 EA
DEMIL
NO
Pipe Size Accommodated
0.750 inches 1st end
Pipe Size Accommodated
0.750 inches 2nd end
Thread Direction
Right-hand 2nd end
Thread Direction
Right-hand 1st end
Flow Control Device
Poppet
Disk Loading Method
Spring
Connection Style
G46b plain (pipe) 2nd end
Connection Style
G9 plain, optional en (pipe) 1st end
Connection Style
Plain (pipe) 2nd end
Connection Style
Plain, optional en (pipe) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded external pipe 2nd end
Connection Type
Threaded internal pipe 1st end
Features Provided
Pressure tight outlet side
Adjustable Pressure Range
+10.0/+50.0 pounds per square inch
Adjustable Pressure Range
+10.0 to 50.0 pounds per square inch
Maximum Operating Pressure
50.0 pounds per square inch single response
Thread Size
0.750 inches 1st end
Thread Size
0.750 inches 2nd end
Opening Pressure Setting
40.0 pounds per square inch
Material
Copper alloy 360 body
Material
Rubber butadiene-acrylonitrile class nbr seat
Material
Steel comp 303 flow control device
Material Specification
Mil-g-1149, type2, class5 military specification single material response seat
Material Specification
Qq-b-626, alloy360 federal specification single material response body
Material Specification
Qq-s-764, type303-canceled federal specification single material response flow control device
Style Designator
Angle
Thread Series Designator
Npt 2nd end
Thread Series Designator
Npt 1st end
636B2 Series Parts

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636B-2-3/4-2 Cross Reference
  • 11290814-2
  • 636B2-3-4-2