Model: RA20BK2

Safety Relief Valve

Properties:

Pipe Size Accommodated
0.250 inches 1st end
Thread Direction
Right-hand all ends
Flow Control Device
Ball
Bonnet Type
Inside screw
Bonnet Attachment Method
Integral
Disk Loading Method
Spring
Connection Style
G9 plain, optional en (pipe) all ends
Connection Style
Plain, optional en (pipe) all ends
Valve Operation Method
Automatic
Connection Type
Threaded internal pipe all ends
Features Provided
Pressure tight outlet side
Adjustable Pressure Range
+0.0/+75.0 pounds per square inch
Maximum Operating Pressure
1500.0 pounds per square inch 1st response
Maximum Operating Pressure
1500.0 pounds per square inch 2nd response
Thread Size
0.250 inches all ends
Material
Copper alloy seat
Material
Copper alloy body
Material
Stainless steel flow control device
Media For Which Designed
Air 1st response
Media For Which Designed
Oil, hydraulic 2nd response
Style Designator
Straight thru
Thread Series Designator
Npt all ends
NSN
4820-00-453-5518
Part Number
RA20BK2
Description
Valve,safety Relief
CAGE
92029

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 RA20BK2 NSN 4820-00-453-5518

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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