Model: A44255

Safety Relief Valve

Properties:

Flow Control Device
Disk
Bonnet Type
Exposed spring
Bonnet Attachment Method
Bolted
Disk Loading Method
Spring
Valve Discharge Flow Rate
16100.0 pounds per hour
Renewable Seat Ring Type
Threaded
Bolt Hole Quantity
4 1st end
Bolt Hole Quantity
8 2nd end
Valve Operation Method
Automatic or manual
Flange Shape
Round with holes 1st end
Flange Shape
Round with holes 2nd end
Features Provided
Pressure tight outlet side
Valve Size
1.500 inches
Opening Pressure Setting
725.0 pounds per square inch
Outside Diameter
6.125 inches 1st end
Outside Diameter
7.500 inches 2nd end
Bolt Hole Diameter
0.875 inches 1st end
Bolt Hole Diameter
0.875 inches 2nd end
Bolt Circle Diameter
4.500 inches 1st end
Bolt Circle Diameter
5.875 inches 2nd end
Flange Face Design
Raised straight 2nd end
Flange Face Design
Recessed straight 1st end
Raised Face Height
0.062 inches 2nd end
Raised Face Diameter
4.125 inches 2nd end
Recess Depth
0.062 inches 1st end
Style Designator
Angle flanged ends
Reference Number Differentiating Characteristics
As differentiated by the valve discharge flow rate requirement
NSN
4820-00-165-1549
Part Number
A44255
Description
Valve,safety Relief
CAGE
15187

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 A44255 NSN 4820-00-165-1549

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

Packaging & Shipping

Est. Pack Size
Est. Pack Weight
Est. Item Weight
Est. Item Dim.
Pack Size:
--
Paclk Weight:
82.0000lbs
Item Weight:
--
Item Dim:
--
OPI
SPI No.
SPI Rev.
SPC Mkg.
LVL A
LVL B
OPI:
M
SPI No.:
SPI Rev.:
SPC Mkg:
00
LVL_A:
Q
LVL_B:
F

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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