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Worldwide distributor of NSN parts and consumables located in the USA.

Safety Relief Valve

Model / MPN: 77306009 | NSN: 4820-01-434-5354
ITAR Registered seal

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.

Product Details
NATO Stock Number
4820-01-434-5354
Sold in multiples of
1 EA
DEMIL
NO
Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Union
Disk Loading Method
Spring
Bolt Hole Quantity
4 all ends
Maximum Operating Temp
750.0 degrees fahrenheit single response
Minimum Operating Temp
-50.0 degrees fahrenheit
End Application
Supply class aoe
Valve Operation Method
Automatic
Flange Shape
Round with holes 1st end
Flange Shape
Round with holes 2nd end
Connection Type
Flange 2nd end
Connection Type
Flange 1st end
Valve Size
1.000 inches
Adjustable Pressure Range
+48.0/+66.0 pounds per square inch
Maximum Operating Pressure
1500.0 pounds per square inch single response
Outside Diameter
3.875 inches 2nd end
Outside Diameter
4.250 inches 1st end
Thickness
0.438 inches 1st end
Thickness
0.438 inches 2nd end
Bolt Hole Diameter
0.625 inches 1st end
Bolt Hole Diameter
0.625 inches 2nd end
Bolt Circle Diameter
2.750 inches 2nd end
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
1.688 inches 2nd end
Raised Face Diameter
2.000 inches 1st end
Material
Steel body
Material
Steel comp 316 flow control device
Material
Steel comp 316 seat
Material
Steel comp 316 stem
Furnished Items And Quantity
1 lever
77306 Series Parts

Pricing and Availability

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77306009 Cross Reference
  • 9511011-D 48TO66PSI
  • DS-G-74893 ASSY 77306009