Model: 20454

Check Valve

Special Features:

Valve suitable for installation a.S.A. 150lb flat faced flanges

Properties:

Flow Control Device

Disk

Disk Loading Method

Spring

Valve Operation Method

Automatic

Flange Shape

Round 1st end

Connection Type

Flange 2nd end

Connection Type

Flange 1st end

Mounting Position

Horizontal

Valve Size

4.000 inches

Maximum Operating Pressure

150.0 pounds per square inch single response

Outside Diameter

4.000 inches 2nd end

Outside Diameter

4.500 inches 1st end

Face To Face Distance

2.875 inches

Flange Face Design

Plain 2nd end

Style Designator

Straight through flanged ends

NSN

4820-01-192-2271

Part Number

20454

Description

Valve,check

CAGE

40983

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 20454 NSN 4820-01-192-2271

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:

Packaging & Shipping

Est. Pack Size

Est. Pack Weight

Est. Item Weight

Est. Item Dim.

Pack Size:

Paclk Weight:

16.3000lbs

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:

051080

UFC:

29300

LTL:

RATING VARIABLE

LCL:

WCC:

576

TCC:

SHC:

ACC:

Construction Materials

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Schedule B and Export

Schedule B: 8481301090
SITC: 74730
End Use: Industrial machines, other
NAICS: 332911
USDA: 1

Freight Class: Check valves of copper having a pressure rating of 850 kpa or over