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.:

App. Key:

Cond. Code:

Status:

Material Classification

Hazardous material, precious metals, criticality, enviroment, and electrostatic discharge indicators

HMIC

PMIC

ESD/EMI

ENAC

MMAC

CRITL

HMIC:

PMIC:

ESD:

MMAC:

CRITL:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

127220

UFC:

64490

LTL:

77.5

LCL:

WCC:

594

TCC:

SHC:

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