Model: 137B

Safety Relief Valve

Properties:

Pipe Size Accommodated

0.750 inches 2nd end

Pipe Size Accommodated

1.000 inches 1st end

Thread Direction

Right-hand 2nd end

Thread Direction

Right-hand 1st end

Flow Control Device

Disk

Bonnet Type

Inside spring

Bonnet Attachment Method

Integral

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 1st end

Connection Type

Threaded internal pipe 2nd end

Maximum Operating Pressure

30.0 pounds per square inch single response

Thread Size

0.750 inches 2nd end

Thread Size

1.000 inches 1st end

Material

Iron body

Media For Which Designed

Water, fresh single response

Style Designator

Angle

Thread Series Designator

Npt 2nd end

Thread Series Designator

Npt 1st end

NSN

4820-00-489-0294

Part Number

137B

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 137B NSN 4820-00-489-0294

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:

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:

SPI No.:

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

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