NSN 4820-01-198-9507
Velocity Fuse
About this product
Poppet flow control device, inside screw bonnet type, threaded bonnet attachment method, disk loading method: spring.
Manufacturer part number D559T-3M-95 for national stock number 4820011989507.
Datasheet
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Product description
Safety Relief Valve NSN 4820-01-198-9507.
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MPN or Model
D559T-3M-95
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Schedule B
8481.40.0000 (Safety or relief valves) -
NMF (National Motor Freight)
127220 - Pressure Reg/red/relief Valves NOI -
Thread Direction
Right-hand all ends -
Flow Control Device
Poppet -
Bonnet Type
Inside screw -
Bonnet Attachment Method
Threaded -
Disk Loading Method
Spring -
Maximum Operating Temp
250.0 degrees fahrenheit single response -
Connection Style
G46b plain (pipe) all ends -
Valve Operation Method
Automatic -
Connection Type
Threaded external pipe all ends -
Maximum Operating Pressure
200.0 pounds per square inch single response -
Thread Size
0.375 inches all ends -
Opening Pressure Setting
95.0 pounds per square inch -
Material
Steel comp 303 body -
Media For Which Designed
Air 1st responseacetylene 2nd responseammonia, gaseous 3rd responserefrigerant 12 4th responsehydrogen 5th response -
Style Designator
Err-090 -
Thread Series Designator
Npt all ends
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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.
![Mechanic Bill explains Velocity Fuse](/public/images/billy-thinking.png)
Pricing and Availability
Get a quote for 4820-01-198-9507 safety relief valveManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
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D559T-3M-95 | Circor Aerospace, Inc. |
Stock Check
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