Model: 9457REVAITEM12

Safety Relief Valve

Properties:

Flow Control Device
Disk
Bonnet Type
Outside screw-yoke
Bonnet Attachment Method
Bolted
Disk Loading Method
Spring
Renewable Seat Ring Type
Threaded
Bolt Hole Quantity
8 1st end
Bolt Hole Quantity
8 2nd end
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
Features Provided
Pressure tight outlet side
Adjustable Pressure Range
+140.0/+150.0 pounds per square inch
Adjustable Pressure Range
+140.0 to 150.0 pounds per square inch
Maximum Operating Pressure
150.0 pounds per square inch single response
Outside Diameter
6.625 inches 2nd end
Outside Diameter
7.687 inches 1st end
Thickness
0.875 inches 1st end
Thickness
1.062 inches 2nd end
Bolt Hole Diameter
0.562 inches 1st end
Bolt Hole Diameter
0.562 inches 2nd end
Bolt Circle Diameter
5.500 inches 2nd end
Bolt Circle Diameter
6.562 inches 1st end
Flange Face Design
Plain 1st end
Flange Face Design
Plain 2nd end
Material
Copper alloy 462 stem or copper alloy 464 stem or copper alloy 482 stem or copper alloy 485 stem
Material
Copper alloy 922 body
Material
Nickel alloy seat
Material
Nickel alloy flow control device
Style Designator
Angle
Reference Number Differentiating Characteristics
By the adjustable pressure range spring requirement
NSN
4820-00-133-3457
Part Number
9457REVAITEM12
Description
Valve,safety Relief
CAGE
15187

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 9457REVAITEM12 NSN 4820-00-133-3457

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:
A
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:
Trailers/Vehicles

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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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