Model: H-6181 3-4IN

Safety Relief Valve

Properties:

Pipe Size Accommodated

1.000 inches 1st end

Flow Control Device

Disk

Disk Loading Method

Spring

Bolt Hole Quantity

4 2nd end

Maximum Operating Temp

300.0 degrees fahrenheit single response

Connection Style

G60b plain (pipe) 1st end

Valve Operation Method

Automatic

Flange Shape

Round with holes 2nd end

Connection Type

Flange 2nd end

Connection Type

Unthreaded external pipe 1st end

Maximum Operating Pressure

250.0 pounds per square inch single response

Opening Pressure Setting

7.50 pounds per square inch

Outside Diameter

3.812 inches 2nd end

Thickness

0.438 inches 2nd end

Bolt Hole Diameter

0.562 inches 2nd end

Bolt Circle Diameter

2.688 inches 2nd end

Flange Face Design

Plain 2nd end

Material

Copper alloy

Material Specification

Qq-c-390, aloy d4/d/ federal specification single material response

NSN

4820-01-067-9709

Part Number

H-6181 3-4IN

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 H-6181 3-4IN NSN 4820-01-067-9709

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:

13.4000lbs

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:

Construction Materials

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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