Model: NMP1544-OPT.1

Safety Relief Valve

Properties:

Flow Control Device

Disk

Bonnet Type

Inside spring

Bonnet Attachment Method

Union

Disk Loading Method

Spring

Bolt Hole Quantity

4 all ends

Maximum Operating Temp

650.0 degrees fahrenheit 1st response400.0 degrees fahrenheit 2nd response

Valve Operation Method

Automatic

Flange Shape

Round with holes all ends

Connection Type

Flange all ends

Valve Size

0.750 inches

Adjustable Pressure Range

+156.0/+186.0 pounds per square inch

Maximum Operating Pressure

125.0 pounds per square inch 1st response200.0 pounds per square inch 2nd response

Outside Diameter

4.250 inches 1st end3.875 inches 2nd end

Thickness

0.562 inches 1st end0.688 inches 2nd end

First Connection Face To Centerline Distance

3.312 inches

Bolt Hole Diameter

0.625 inches all ends

Second Connection Face To Centerline Distance

3.250 inches

Bolt Circle Diameter

3.125 inches 1st end2.750 inches 2nd end

Flange Face Design

Raised straight all ends

Raised Face Height

0.062 inches 1st end0.250 inches 2nd end

Raised Face Diameter

2.000 inches 1st end1.688 inches 2nd end

Material

Steel bodystainless steel flow control devicestainless steel seatstainless steel stem

NSN

4820-01-264-8385

Part Number

NMP1544-OPT.1

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 NMP1544-OPT.1 NSN 4820-01-264-8385

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:

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: 8481400000
SITC: 74740
End Use: Industrial machines, other
NAICS: 332911
USDA: 1

Freight Class: Safety or relief valves