NSN 4820-01-434-6660
Velocity Fuse
About this product
Incl packing lifting lever.
Manufacturer part number 77321003 for national stock number 4820014346660.
Datasheet
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Product description
Safety Relief Valve NSN 4820-01-434-6660.
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MPN or Model
77321003
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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 -
Disk Loading Method
Spring -
Valve Discharge Flow Rate
18.0 gallons per minute -
Bolt Hole Quantity
4 all ends -
Maximum Operating Temp
500.0 degrees fahrenheit single response -
End Application
Supply class aoe -
Valve Operation Method
Automatic -
Flange Shape
Round with holes all ends -
Connection Type
Flange all ends -
Valve Size
1.000 inches -
Adjustable Pressure Range
+56.0/+77.0 pounds per square inch -
Maximum Operating Pressure
1500.0 pounds per square inch single response -
Outside Diameter
0.500 inches 2nd end -
Thickness
0.562 inches 1st end -
First Connection Face To Centerline Distance
4.000 inches -
Bolt Hole Diameter
0.625 inches all ends -
Second Connection Face To Centerline Distance
4.250 inches -
Bolt Circle Diameter
3.125 inches 1st end -
Flange Face Design
Raised straight all ends -
Raised Face Height
0.062 inches all ends -
Raised Face Diameter
2.000 inches 1st end -
Material
Steel comp 316 flow control device -
Media For Which Designed
Fuel/oil, hydrocarbon single response -
Style Designator
Err-090
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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 4820-01-434-6660 safety relief valveManufacturer Part Numbers and Alternates
MPN manufacturer part number | Registrant or Supplier |
---|---|
77321003 | Pentair Valves & Controls Us Lp |
9512101D0050 0100 56T77PSI | Pentair Valves & Controls Us Lp |
DS-G-74893 ASSY 77321003 | Pentair Valves & Controls Us Lp |
DS-G-74893 | Pentair Valves & Controls Us Lp |
Stock Check
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