Model: DD445S4700-20PC1

Safety Relief Valve

Properties:

Thread Direction
Right-hand 2nd end
Flow Control Device
Poppet
Bonnet Type
Inside screw
Bonnet Attachment Method
Integral
Disk Loading Method
Spring
Bolt Hole Quantity
3 1st end
Connection Style
G9 plain, optional en (pipe) 2nd end
Connection Style
Plain, optional en (pipe) 2nd end
Valve Operation Method
Automatic
Flange Shape
Round with holes 1st end
Connection Type
Flange 1st end
Connection Type
Threaded internal pipe 2nd end
Features Provided
Pressure tight outlet side
Adjustable Pressure Range
+0.0/+12.0 pounds per square inch
Maximum Operating Pressure
100.0 pounds per square inch single response
Thread Size
0.500 inches 2nd end
Outside Diameter
3.562 inches 1st end
Bolt Hole Diameter
0.562 inches 1st end
Bolt Circle Diameter
2.437 inches 1st end
Flange Face Design
Plain 1st end
Material
Copper alloy flow control device
Material
Copper alloy seat
Material
Copper alloy body
Material
Stainless steel stem
Media For Which Designed
Water-oil-gas single response
Style Designator
Angle
Thread Series Designator
Npt 2nd end
NSN
4820-00-273-1025
Part Number
DD445S4700-20PC1
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 DD445S4700-20PC1 NSN 4820-00-273-1025

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

Freight Classification

NMFC
UFC
LTL
LCL
WCC
TCC
SHC
ACC
NMFC:
127200
UFC:
64480
LTL:
85.0
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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