Model: B-51019-1

Safety Relief Valve

Special Features:

4.0-4.3 psig opening pressure range; 3.5 psig closing pressure range; 1-3/8 inch wrench hex size; high flow

Properties:

Thread Direction
Right-hand 2nd end
Flow Control Device
Disk
Disk Loading Method
Spring
Connection Style
G9 plain, optional en (pipe) 2nd end
Valve Operation Method
Automatic
Flange Shape
Round 1st end
Connection Type
Flange 1st end
Connection Type
Threaded external pipe 2nd end
Thready Qty Per Inch (tpi)
12 2nd end
Thread Size
1.062 inches 2nd end
Opening Pressure Setting
4.0 pounds per square inch
Flange Face Design
Raised straight 1st end
Raised Face Height
0.625 inches 1st end
Thread Series Designator
Un 2nd end
NSN
4820-01-579-3429
Part Number
B-51019-1
Description
Valve,safety Relief
CAGE
08407

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 B-51019-1 NSN 4820-01-579-3429

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:
A
ESD:
A
MMAC:
CRITL:
X

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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