Model: 140764-1

Safety Relief Valve

Properties:

Flow Control Device
Poppet
Bonnet Type
Inside screw
Bonnet Attachment Method
Pressure seal, ring type
Disk Loading Method
Spring
Bolt Hole Quantity
4 all ends
Valve Operation Method
Automatic
Flange Shape
Round with holes all ends
Connection Type
Flange all ends
Features Provided
Valve stem lock shield and pressure tight outlet side
Maximum Operating Pressure
400.0 pounds per square inch single response
Opening Pressure Setting
75.0 pounds per square inch
Outside Diameter
4.250 inches all ends
Thickness
0.438 inches all ends
Bolt Hole Diameter
0.625 inches all ends
Bolt Circle Diameter
3.125 inches all ends
Flange Face Design
Raised straight all ends
Raised Face Height
0.062 inches all ends
Raised Face Diameter
2.000 inches all ends
Material
Steel comp 316
Material Specification
Qq-s-763, class 316 federal specification single material response
Media For Which Designed
Water, fresh single response
NSN
4820-00-940-1882
Part Number
140764-1
Description
Valve,safety Relief
CAGE
3B150

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 140764-1 NSN 4820-00-940-1882

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:
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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