Model: 31W-C8M4 3IN

Check Valve

Special Features:

Swing check type

Properties:

Pipe Size Accommodated

3.000 inches all ends

Flow Control Device

Disk

Maximum Operating Temp

1000.0 degrees fahrenheit single response

Connection Style

Beveled (pipe) all ends

Valve Operation Method

Automatic

Connection Type

Butt weld pipe all ends

Mounting Position

Horizontal

Maximum Operating Pressure

275.0 pounds per square inch single response

Material

Steel comp 316

Material Specification

Astm a351 grade cf8m assn standard single material response

Media For Which Designed

Water-oil-gas single response

Style Designator

Straight thru

NSN

4820-01-256-0660

Part Number

31W-C8M4 3IN

Description

Valve,check

CAGE

61661

A valve permitting flow in one direction only. It does not have a stem, except when equipped with a lever and weight and has no pressure adjustment. It may be inline or cartridge (manifold) design.

Part 31W-C8M4 3IN NSN 4820-01-256-0660

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

05487

FIIG:

A530B0

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:

051080

UFC:

29300

LTL:

RATING VARIABLE

LCL:

WCC:

594

TCC:

SHC:

ACC:

Trailers/Vehicles

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Schedule B and Export

Schedule B: 8481302090
SITC: 74730
End Use: Industrial machines, other
NAICS: 332911
USDA: 1

Freight Class: Check valves of steel