Model: 1A31R3-10S

Safety Relief Valve

Special Features:

W/handknob and buna-n seals

Properties:

Pipe Size Accommodated
0.375 inches all ends
Thread Direction
Right-hand all ends
Flow Control Device
Spool
Bonnet Type
Inside spring
Bonnet Attachment Method
Threaded
Disk Loading Method
Spring
Valve Discharge Flow Rate
3.0 gallons per minute
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
Bonnet packing and pressure tight outlet side
Adjustable Pressure Range
+25.0/+1000.0 pounds per square inch
Adjustable Pressure Range
+25.0 to 1000.0 pounds per square inch
Maximum Operating Pressure
1000.0 pounds per square inch single response
Thread Size
0.375 inches all ends
Opening Pressure Setting
100.0 pounds per square inch
Material
Aluminum alloy body
Material
Aluminum alloy seat
Material
Steel flow control device and rubber butadiene-acrylonitrile class nbr flow control device
Media For Which Designed
Oil, hydraulic single response
Surface Treatment
Anodize
Style Designator
Angle
Thread Series Designator
Nptf all ends
NSN
4820-00-168-2057
Part Number
1A31R3-10S
Description
Valve,safety Relief
CAGE
8Z296

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 1A31R3-10S NSN 4820-00-168-2057

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

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
2.0000lbs
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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