NSN 4820-00-018-7881
Velocity Fuse
About this product
Disk flow control device, inside spring bonnet type, threaded bonnet attachment method, disk loading method: spring.
Manufacturer part number D661-1255 for national stock number 4820000187881.
Datasheet
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Product description
Safety Relief Valve NSN 4820-00-018-7881.
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MPN or Model
D661-1255
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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.)
6 lb -
Thread Direction
Right-hand 1st end -
Flow Control Device
Disk -
Bonnet Type
Inside spring -
Bonnet Attachment Method
Threaded -
Disk Loading Method
Spring -
Renewable Seat Ring Type
Pressed-in -
Connection Style
Plain, optional en (pipe) 2nd end -
Valve Operation Method
Automatic -
Connection Type
Threaded internal pipe 2nd end -
Features Provided
Valve stem lock shield and bonnet packing and pressure tight outlet side -
Maximum Operating Pressure
3200.0 pounds per square inch single response -
Thread Size
0.750 inches 1st end -
Material
Stainless steel body -
Style Designator
Angle -
Thread Series Designator
Npt 1st 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 4820-00-018-7881 safety relief valveManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
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D661-1255 | Gas Equipment Engineering |
FIG189-1-2-3200 | Anderson Greenwood Lp |
Stock Check
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