Model: 79-1/2-95PSI

Safety Relief Valve

Properties:

Pipe Size Accommodated
0.500 inches 1st end
Pipe Size Accommodated
0.500 inches 2nd end
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
Maximum Operating Temp
100.0 degrees fahrenheit 1st response
Maximum Operating Temp
100.0 degrees fahrenheit 3rd response
Maximum Operating Temp
400.0 degrees fahrenheit 2nd response
Connection Style
G46b plain (pipe) 2nd end
Connection Style
G9 plain, optional en (pipe) 1st end
Connection Style
Plain (pipe) 2nd end
Connection Style
Plain, optional en (pipe) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded external pipe 2nd end
Connection Type
Threaded internal pipe 1st end
Features Provided
Valve stem lock shield and bonnet packing and pressure tight outlet side
Adjustable Pressure Range
+61.0/+120.0 pounds per square inch
Adjustable Pressure Range
+61.0 to 120.0 pounds per square inch
Maximum Operating Pressure
250.0 pounds per square inch 2nd response
Maximum Operating Pressure
300.0 pounds per square inch 1st response
Maximum Operating Pressure
300.0 pounds per square inch 3rd response
Thread Size
0.500 inches 1st end
Thread Size
0.500 inches 2nd end
Material
Copper alloy flow control device
Material
Copper alloy 836 body
Material
Copper alloy 836 seat
Material
Steel stem
Material Specification
Qq-c-290, alloyb5/d/ federal specification single material response seat
Material Specification
Qq-c-390, alloyb5/d/ federal specification single material response body
Media For Which Designed
Steam 2nd response
Media For Which Designed
Water, fresh 3rd response
Media For Which Designed
Fuel/oil, hydrocarbon 1st response
Style Designator
Angle
Thread Series Designator
Npt 2nd end
Thread Series Designator
Npt 1st end
NSN
4820-00-142-1515
Part Number
79-1/2-95PSI
Description
Valve,safety Relief
CAGE
93641

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 79-1/2-95PSI NSN 4820-00-142-1515

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

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
127220
UFC:
64490
LTL:
77.5
LCL:
--
WCC:
594
TCC:
Z
SHC:
9
ACC:
Construction Materials

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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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