Model: E523

Safety Relief Valve

Special Features:

W/lifting lever

Properties:

Pipe Size Accommodated
1.000 inches 1st end
Flow Control Device
Disk
Disk Loading Method
Spring
Maximum Operating Temp
125.0 degrees fahrenheit single response
Valve Operation Method
Manual
Connection Type
Unthreaded internal pipe 1st end
Features Provided
Pressure tight outlet side
Adjustable Pressure Range
+30.0/+75.0 pounds per square inch
Maximum Operating Pressure
100.0 pounds per square inch single response
Material
Copper alloy stem
Material
Copper alloy body
Material
Nickel alloy seat
Media For Which Designed
Water, fresh single response
Style Designator
Angle
NSN
4820-00-289-1857
Part Number
E523
Description
Valve,safety Relief
CAGE

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 E523 NSN 4820-00-289-1857

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:
77.5
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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