Model: 80-4S-CS135

Safety Relief Valve

Special Features:

Lox clean per a/f packaging k3655-00887, amend no. 1, 12 dec 1963

Properties:

Pipe Size Accommodated
0.500 inches 1st end
Pipe Size Accommodated
0.750 inches 2nd end
Thread Direction
Right-hand 2nd end
Thread Direction
Right-hand 1st end
Flow Control Device
Disk
Disk Loading Method
Spring
Renewable Seat Ring Type
Threaded
Connection Style
G46b plain (pipe) 1st end
Connection Style
G9 plain, optional en (pipe) 2nd end
Connection Style
Plain (pipe) 1st end
Connection Style
Plain, optional en (pipe) 2nd end
Valve Operation Method
Air
Connection Type
Threaded external pipe 1st end
Connection Type
Threaded internal pipe 2nd end
Thready Qty Per Inch (tpi)
14 1st end
Thready Qty Per Inch (tpi)
14 2nd end
Adjustable Pressure Range
+45.0/+55.0 pounds per square inch
Maximum Operating Pressure
55.0 pounds per square inch single response
Thread Size
0.500 inches 1st end
Thread Size
0.750 inches 2nd end
Opening Pressure Setting
50.0 pounds per square inch
Material
Copper alloy body
Media For Which Designed
Oxygen, liquid single response
Style Designator
Angle
Thread Series Designator
Npt 2nd end
Thread Series Designator
Npt 1st end
NSN
4820-00-043-3823
Part Number
80-4S-CS135
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 80-4S-CS135 NSN 4820-00-043-3823

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:
77.5
WCC:
594
TCC:
Z
SHC:
Z
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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