Model: 31F-CB3

Check Valve

Properties:

Flow Control Device

Disk

Disk Loading Method

Weight

Bolt Hole Quantity

8 all ends

Maximum Operating Temp

500.0 degrees fahrenheit single response

Valve Operation Method

Automatic

Flange Shape

Round with holes all ends

Connection Type

Flange all ends

Mounting Position

Horizontal or vertical

Valve Size

5.000 inches

Maximum Operating Pressure

150.0 pounds per square inch single response

Outside Diameter

10.000 inches all ends

Face To Face Distance

13.000 inches

Thickness

0.875 inches all ends

Bolt Hole Diameter

0.875 inches all ends

Bolt Circle Diameter

8.500 inches all ends

Flange Face Design

Raised straight all ends

Raised Face Height

0.062 inches all ends

Raised Face Diameter

7.312 inches all ends

Material

Steel body

Material Specification

Astm a216, grade wcb assn standard single material response body

Media For Which Designed

Steam single response

Style Designator

Straight through flanged ends

Test Data Document

81349-mil-s-901 specification (includes engineering type bulletins, brochures, etc., that reflect specification type data in specification format; excludes commercial catalogs, industry directories, and similar trade publications, reflecting general type data on certain environmental and performance requirements and test conditions that are shown as "typical", "average", "", etc.).

Nondefinitive Specification/std Data

C group and 3 type and 5 trim and 150 class

NSN

4820-00-137-9214

Part Number

31F-CB3

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 31F-CB3 NSN 4820-00-137-9214

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:

576

TCC:

SHC:

ACC:

Construction Materials

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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