Model: 8521947

Safety Relief Valve

Special Features:

W/handknob for adjusting relief pressure setting control cap rotated 90.0 deg. And additional washers provided on stem under handknob control

Properties:

Pipe Size Accommodated
0.750 inches 1st end
Thread Direction
Right-hand 1st end
Flow Control Device
Disk
Bonnet Type
Inside spring
Bonnet Attachment Method
Bolted
Disk Loading Method
Spring
Maximum Operating Temp
200.0 degrees fahrenheit single response
Connection Style
G9 plain, optional en (pipe) 1st end
Connection Style
Plain, optional en (pipe) 1st end
Valve Operation Method
Automatic
Connection Type
Threaded internal pipe 1st end
Features Provided
Bonnet packing and pressure tight outlet side
Adjustable Pressure Range
+2500.0/+5000.0 pounds per square inch
Adjustable Pressure Range
+2500.0 to 5000.0 pounds per square inch
Thread Size
0.750 inches 1st end
Material
Iron body
Material
Iron seat
Material
Steel flow control device
Material
Steel stem
Material Specification
Astm a48, class 40 assn standard single material response body
Material Specification
Astm a48, class 40 assn standard single material response seat
Media For Which Designed
Oil, hydraulic single response
Thread Series Designator
Npt 1st end
NSN
4820-00-089-2461
Part Number
8521947
Description
Valve,safety Relief
CAGE
18876

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 8521947 NSN 4820-00-089-2461

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:
SX
CRITL:
X

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
15.7000lbs
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:
Z
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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