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

Safety Relief Valve

Model / MPN: 629XB1-4-2 | NSN: 4820-00-757-4329
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
4820-00-757-4329
Sold in multiples of
1 EA
DEMIL
NO
Thread Class
3a all ends
Thread Direction
Right-hand all ends
Flow Control Device
Poppet
Bonnet Type
Inside spring
Bonnet Attachment Method
Threaded
Disk Loading Method
Spring
Maximum Operating Temp
225.0 degrees fahrenheit single response
Connection Style
G42 flared (tube) all ends
Connection Style
Flared (tube) all ends
Valve Operation Method
Automatic
Connection Type
Threaded external tube all ends
Features Provided
Bonnet packing and pressure tight outlet side
Adjustable Pressure Range
+4.0/+15.0 pounds per square inch
Maximum Operating Pressure
3100.0 pounds per square inch single response
Thread Size
0.437 inches all ends
Seat Angle
37.0 degrees all ends
Opening Pressure Setting
10.0 pounds per square inch
Outside Diameter Tube Accommodated
0.250 inches all ends
Material
Aluminum alloy body
Material
Aluminum alloy seat
Material
Rubber butadiene-acrylonitrile class nbr flow control device
Media For Which Designed
Water-oil-gas single response
Surface Treatment
Anodize
Style Designator
Angle
Thread Series Designator
Unf all ends
629XB1 Series Parts

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629XB1-4-2 Cross Reference