NSN 4820-01-331-8683
Velocity Fuse
About this product
Disk flow control device, 4 all ends bolt holes, automatic valve operation method, flange shape: round with holes all ends.
Manufacturer part number 1905-30FC-1 S/N TH72190-193 for national stock number 4820013318683.
Datasheet
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Product description
Safety Relief Valve NSN 4820-01-331-8683.
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MPN or Model
1905-30FC-1 S/N TH72190-193
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Schedule B
8481.40.0000 (Safety or relief valves) -
NMF (National Motor Freight)
127220 - Pressure Reg/red/relief Valves NOI -
Flow Control Device
Disk -
Bolt Hole Quantity
4 all ends -
Maximum Operating Temp
450.0 degrees fahrenheit 2nd response -
Valve Operation Method
Automatic -
Flange Shape
Round with holes all ends -
Connection Type
Flange all ends -
Valve Size
1.500 inches -
Adjustable Pressure Range
+15.0/+20.0 pounds per square inch -
Maximum Operating Pressure
285.0 pounds per square inch 1st response -
Outside Diameter
6.000 inches 1st end -
Thickness
0.750 inches 1st end -
First Connection Face To Centerline Distance
4.750 inches -
Bolt Hole Diameter
0.750 inches 1st end -
Second Connection Face To Centerline Distance
4.875 inches -
Bolt Circle Diameter
4.750 inches 1st end -
Flange Face Design
Raised straight all ends -
Raised Face Height
0.062 inches all ends -
Raised Face Diameter
3.250 inches 1st end -
Material
Steel comp 316 flow control device -
Style Designator
Err-090
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 4820-01-331-8683 safety relief valveManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
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1905-30FC-1 S/N TH72190-193 | Dresser, Inc. |
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