Model: A6814A

Safety Relief Valve

Properties:

Pipe Size Accommodated
0.500 inches 1st end
Thread Direction
Right-hand 1st end
Flow Control Device
Disk
Bonnet Type
Exposed spring
Bonnet Attachment Method
Bolted
Disk Loading Method
Spring
Renewable Seat Ring Type
Threaded
Bolt Hole Quantity
4 2nd end
Connection Style
G9 plain, optional en (pipe) 1st end
Connection Style
Plain, optional en (pipe) 1st end
Valve Operation Method
Automatic
Flange Shape
Round with holes 2nd end
Connection Type
Flange 2nd end
Connection Type
Threaded internal pipe 1st end
Features Provided
Bonnet packing
Adjustable Pressure Range
+31.0/+50.0 pounds per square inch
Maximum Operating Pressure
150.0 pounds per square inch single response
Thread Size
0.500 inches 1st end
Outside Diameter
3.875 inches 2nd end
Thickness
0.438 inches 2nd end
Bolt Hole Diameter
0.500 inches 2nd end
Bolt Circle Diameter
2.750 inches 2nd end
Flange Face Design
Raised straight 2nd end
Raised Face Height
0.062 inches 2nd end
Raised Face Diameter
1.688 inches 2nd end
Material
Nickel alloy seat
Material
Nickel alloy stem
Material
Nickel alloy flow control device
Material
Steel body
Media For Which Designed
Water, fresh single response
Style Designator
Angle
Thread Series Designator
Npt 1st end
NSN
4820-00-142-1014
Part Number
A6814A
Description
Valve,safety Relief
CAGE
01343

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 A6814A NSN 4820-00-142-1014

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:
--
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:
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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