Model: D48667

Safety Relief Valve

Properties:

Pipe Size Accommodated
0.500 inches all ends
Flow Control Device
Disk
Bonnet Type
Inside screw
Bonnet Attachment Method
Bolted
Disk Loading Method
Spring
Maximum Operating Temp
425.0 degrees fahrenheit single response
Valve Operation Method
Automatic
Connection Type
Unthreaded internal pipe all ends
Maximum Operating Pressure
400.0 pounds per square inch single response
Material
Copper alloy 922 body
Material
Nickel alloy seat
Material
Nickel alloy flow control device
Material
Plastic polytetrafluoroethylene packing
Material
Steel stem
Material Specification
Astm a276 assn standard single material response stem
Material Specification
Astm b61 assn standard single material response body
Material Specification
Qq-n-288 federal specification single material response flow control device
Material Specification
Qq-n-288 federal specification single material response seat
Media For Which Designed
Air 1st response
Media For Which Designed
Gas, inert 2nd response
Supplementary Features
This item has been reviewed for asbestos material. The current approved source, 34889, has indicated their part number contained asbestos prior to 1984. They continue to manufacture the same part number without asbestos material after 1984
Furnished Items And Quantity
2 nut and 2 tailpiece
NSN
4820-01-215-9992
Part Number
D48667
Description
Valve,safety Relief
CAGE
34889

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 D48667 NSN 4820-01-215-9992

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:
--
WCC:
576
TCC:
Z
SHC:
9
ACC:
Construction Materials

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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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