Model: 272778-1

Safety Relief Valve

Properties:

Thread Direction
Right-hand 2nd end
Thread Direction
Right-hand 1st end
Flow Control Device
Disk
Disk Loading Method
Spring
Connection Style
G9 plain, optional en (pipe) 1st end
Connection Style
G9 plain, optional en (pipe) 2nd end
Connection Style
Plain, optional en (pipe) 1st end
Connection Style
Plain, optional en (pipe) 2nd end
Valve Operation Method
Automatic
Connection Type
Threaded internal pipe 1st end
Connection Type
Threaded internal pipe 2nd end
Mounting Facility
Threaded fastener
Features Provided
Pressure tight outlet side
Adjustable Pressure Range
+950.0/+1050.0 pounds per square inch
Thread Size
0.375 inches 2nd end
Thread Size
0.625 inches 1st end
Material
Aluminum alloy body
Material
Stainless steel seat
Style Designator
Angle
Thread Series Designator
Npt 2nd end
Thread Series Designator
Npt 1st end
NSN
4820-00-219-0482
Part Number
272778-1
Description
Valve,safety Relief
CAGE
88277

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 272778-1 NSN 4820-00-219-0482

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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