Model: H3

Safety Relief Valve

Properties:

Thread Direction
Right-hand all ends
Flow Control Device
Poppet
Valve Discharge Flow Rate
1872.0 cubic feet per minute
Maximum Operating Temp
300.0 degrees fahrenheit single response
Valve Operation Method
Automatic
Connection Type
Threaded internal pipe all ends
Maximum Operating Pressure
300.0 pounds per square inch single response
Thread Size
1.250 inches 1st end
Thread Size
1.000 inches 2nd end
Opening Pressure Setting
225.0 pounds per square inch
Material
Iron cast body
Material
Plastic polytetrafluoroethylene seat
Material
Stainless steel flow control device
Material
Stainless steel stem
Media For Which Designed
Air single response
Thread Series Designator
Npt all ends
NSN
4820-01-306-9260
Part Number
H3
Description
Valve,safety Relief
CAGE
91051

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 H3 NSN 4820-01-306-9260

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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