Model: 549-1 1-2IN

Lift-check Valve

Properties:

Pipe Size Accommodated

0.500 inches all ends

Flow Control Device

Disk

Bonnet Type

Packing retaining

Connection Style

Streamlined with one brazing ring (pipe) all ends

Valve Operation Method

Automatic

Connection Type

Unthreaded internal pipe all ends

Mounting Position

Horizontal or vertical

Maximum Operating Pressure

700.0 pounds per square inch single response

Material

Copper alloy

Media For Which Designed

Steam single response

Style Designator

Straight thru

NSN

4820-01-059-1176

Part Number

549-1 1-2IN

Description

Valve,lift-check

CAGE

76364

A valve with a stem that may be mechanically actuated to two different positions by rotary or linear motion. In the first position, one side of the valve disk is located against the seat permitting movement of the disk in a manner that will allow a flow of fluid in one direction through the valve. In the second position, the valve disk is lifted from the seat to allow a flow of fluid in either direction through the valve. The valve disk may be spring loaded. See also valve, stop-check and valve, stop-lift-check.

Part 549-1 1-2IN NSN 4820-01-059-1176

INC

FIIG

Concept No.

App. Key

Cond. Code

Status

INC:

27828

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:

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:

594

TCC:

SHC:

ACC:

Trailers/Vehicles

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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