Model: D559TP4D45

Safety Relief Valve

Special Features:

Furnished with deflector cap

Properties:

Thread Class
3a all ends
Thread Direction
Right-hand all ends
Flow Control Device
Poppet
Maximum Operating Temp
280.0 degrees fahrenheit single response
Connection Style
G46a plain (tube) all ends
Valve Operation Method
Automatic
Connection Type
Threaded external tube all ends
Thready Qty Per Inch (tpi)
20 all ends
Adjustable Pressure Range
+0.5/+150.0 pounds per square inch
Maximum Operating Pressure
150.0 pounds per square inch single response
Thread Size
0.438 inches all ends
Opening Pressure Setting
45.0 pounds per square inch
Material
Steel comp 303 body
Media For Which Designed
Air 1st response
Media For Which Designed
Ammonia, gaseous 2nd response
Media For Which Designed
Fuel/oil, hydrocarbon 3rd response
Media For Which Designed
Helium 4th response
Media For Which Designed
Hydrogen 5th response
Thread Series Designator
Unj all ends
NSN
4820-00-967-6291
Part Number
D559TP4D45
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 D559TP4D45 NSN 4820-00-967-6291

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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