Model: D539A2M30

Safety Relief Valve

Special Features:

Furnished with deflector cap

Properties:

Pipe Size Accommodated
0.250 inches 1st end
Thread Direction
Right-hand 1st end
Flow Control Device
Poppet
Disk Loading Method
Spring
Maximum Operating Temp
250.0 degrees fahrenheit single response
Connection Style
G46b plain (pipe) all ends
Valve Operation Method
Air
Connection Type
Threaded external pipe 1st end
Thready Qty Per Inch (tpi)
18 1st end
Adjustable Pressure Range
+0.5/+140.0 pounds per square inch
Maximum Operating Pressure
140.0 pounds per square inch single response
Thread Size
0.250 inches 1st end
Opening Pressure Setting
30.0 pounds per square inch
Material
Aluminum alloy body
Material
Aluminum alloy seat
Material
Aluminum alloy stem
Media For Which Designed
Ammonia, gaseous 2nd response
Media For Which Designed
Fuel/oil, hydrocarbon 1st response
Media For Which Designed
Gas, inert 5th response
Media For Which Designed
Gas, natural 4th response
Media For Which Designed
Hydrogen 3rd response
Thread Series Designator
Npt 1st end
NSN
4820-00-832-8923
Part Number
D539A2M30
Description
Valve,safety Relief
CAGE
91816

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 D539A2M30 NSN 4820-00-832-8923

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:
SX
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
0.1000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
O
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
Q

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
127220
UFC:
64490
LTL:
77.5
LCL:
--
WCC:
594
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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