NSN 4820-00-552-3508
Velocity Fuse
About this product
The end connection identified above as the second end is the valve inlet.
Manufacturer part number 631B-4-1/4-2 for national stock number 4820005523508.
Datasheet
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Product description
Safety Relief Valve NSN 4820-00-552-3508.
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MPN or Model
631B-4-1/4-2
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Schedule B
8481.40.0000 (Safety or relief valves) -
NMF (National Motor Freight)
127220 - Pressure Reg/red/relief Valves NOI -
Unit Weight (Est.)
1 lb -
Thread Direction
Right-hand 1st end -
Flow Control Device
Poppet -
Bonnet Type
Inside screw -
Bonnet Attachment Method
Threaded -
Disk Loading Method
Spring -
Maximum Operating Temp
225.0 degrees fahrenheit single response -
Connection Style
Plain, optional en (pipe) 1st end -
Valve Operation Method
Automatic -
Connection Type
Threaded internal pipe 1st end -
Features Provided
Pressure tight outlet side -
Maximum Operating Pressure
3100.0 pounds per square inch single response -
Thread Size
0.250 inches 2nd end -
Opening Pressure Setting
200.0 pounds per square inch -
Material
Steel comp 416 flow control device -
Material Specification
Qq-b-626, alloy 360 federal specification single material response body -
Media For Which Designed
Fuel/oil, hydrocarbon 3rd response -
Style Designator
Angle -
Thread Series Designator
Anpt 2nd end
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Safety Relief Valve
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.
Pricing and Availability
Get a quote for 4820-00-552-3508 safety relief valveManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
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631B-4-1/4-2 | Parker-hannifin Corporation |
631B4 1-4 2 | Teledyne Industries Inc |
Stock Check
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