Model: FIG291

Safety Relief Valve

Properties:

Pipe Size Accommodated
0.500 inches 1st end
Thread Direction
Right-hand 1st end
Flow Control Device
Disk
Bonnet Type
Inside screw
Bonnet Attachment Method
Threaded
Disk Loading Method
Spring
Valve Discharge Flow Rate
8.0 gallons per minute
Connection Style
G9 plain, optional en (pipe) 1st end
Connection Style
Plain, optional en (pipe) 1st end
Connection Type
Threaded internal pipe 1st end
Features Provided
Pressure tight outlet side
Thready Qty Per Inch (tpi)
14 1st end
Maximum Operating Pressure
1250.0 pounds per square inch single response
Thread Size
0.500 inches 1st end
Opening Pressure Setting
50.0 pounds per square inch
Material
Steel body
Material
Stainless steel seat
Material
Stainless steel stem
Media For Which Designed
Liquid, ingested single response
Style Designator
Angle
Thread Series Designator
Npt 1st end
NSN
4820-00-201-2828
Part Number
FIG291
Description
Valve,safety Relief
CAGE
01343

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 FIG291 NSN 4820-00-201-2828

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

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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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