Model: 1704C

Safety Relief Valve

Properties:

Pipe Size Accommodated
0.500 inches 1st end
Thread Direction
Right-hand 1st end
Flow Control Device
Disk
Disk Loading Method
Spring
Valve Discharge Flow Rate
312.0 cubic feet per minute
Connection Style
G46b plain (pipe) 1st end
Connection Style
Plain (pipe) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded external pipe 1st end
Features Provided
Pressure tight outlet side
Thready Qty Per Inch (tpi)
14 1st end
Power Drive Operating Pressure
350.0 pounds per square inch
Adjustable Pressure Range
+251.0/+400.0 pounds per square inch
Thread Size
0.500 inches 1st end
Opening Pressure Setting
350.0 pounds per square inch
Material
Copper alloy seat
Material
Copper alloy stem
Material
Copper alloy body
Material Specification
Qq-c-390, alloy d4 federal specification single material response body
Material Specification
Qq-c-390, alloy d4 federal specification single material response seat
Material Specification
Qq-c-390, alloy d4 federal specification single material response stem
Style Designator
Straight thru
Thread Series Designator
Npt 1st end
NSN
4820-00-174-2437
Part Number
1704C
Description
Valve,safety Relief
CAGE
37239

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 1704C NSN 4820-00-174-2437

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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