Model: 34670-3

Safety Relief Valve

Properties:

Thread Class
3a 1st end
Thread Direction
Right-hand 1st end
Flow Control Device
Diaphragm
Bonnet Type
Packing retaining
Disk Loading Method
Spring
Valve Discharge Flow Rate
15.0 cubic feet per minute
Maximum Operating Temp
330.0 degrees fahrenheit single response
Connection Style
G50 external seat for gasket seal (boss) 1st end
Connection Style
External seat for gasket seal (boss) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded external boss 1st end
Thready Qty Per Inch (tpi)
20 1st end
Thread Size
0.437 inches 1st end
Opening Pressure Setting
4500.0 pounds per square inch
Outside Diameter Tube Accommodated
0.250 inches 1st end
Material
Copper alloy 170 flow control device
Material
Steel comp 630 body
Material
Steel comp 630 seat
Media For Which Designed
Air 1st response
Media For Which Designed
Nitrogen, gaseous 2nd response
Surface Treatment
Paint and primer
Style Designator
Angle
Thread Series Designator
Unf 1st end
NSN
4820-00-421-5869
Part Number
34670-3
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 34670-3 NSN 4820-00-421-5869

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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