Model: 1479

Safety Relief Valve

Properties:

Thread Direction
Right-hand 2nd end
Thread Direction
Right-hand 1st end
Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Threaded
Disk Loading Method
Spring
Valve Discharge Flow Rate
40.6 gallons per minute
Maximum Operating Temp
406.0 degrees fahrenheit 1st response
Maximum Operating Temp
406.0 degrees fahrenheit 2nd response
Maximum Operating Temp
406.0 degrees fahrenheit 3rd response
Connection Style
G46b plain (pipe) 1st end
Connection Style
G9 plain, optional en (pipe) 2nd end
Valve Operation Method
Manual
Connection Type
Threaded external pipe 1st end
Connection Type
Threaded internal pipe 2nd end
Valve Size
1.000 inches
Maximum Operating Pressure
300.0 pounds per square inch 1st response
Maximum Operating Pressure
300.0 pounds per square inch 2nd response
Maximum Operating Pressure
300.0 pounds per square inch 3rd response
Thread Size
1.000 inches 1st end
Thread Size
1.000 inches 2nd end
Opening Pressure Setting
150.0 pounds per square inch
First Connection Face To Centerline Distance
1.625 inches
Second Connection Face To Centerline Distance
2.6875 inches
Material
Copper alloy flow control device
Material
Copper alloy seat
Material
Copper alloy body
Media For Which Designed
Water, fresh 3rd response
Media For Which Designed
Air 1st response
Media For Which Designed
Oil 2nd response
Thread Series Designator
Npt 2nd end
Thread Series Designator
Npt 1st end
NSN
4820-01-032-4460
Part Number
1479
Description
Valve,safety Relief
CAGE
16497

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.

Part 1479 NSN 4820-01-032-4460

INC
FIIG
Concept No.
App. Key
Cond. Code
Status
INC:
05488
FIIG:
A046B0
Concept No.:
1
App. Key:
AP
Cond. Code:
1
Status:
A

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators
HMIC
PMIC
ESD/EMI
ENAC
MMAC
CRITL
HMIC:
N
PMIC:
U
ESD:
ESD:
MMAC:
CRITL:
X

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Schedule B and Export
  • Schedule B: 8481400000
  • SITC: 74740
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Freight Class: Safety or relief valves

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