Model: 75421-091

Safety Relief Valve

Special Features:

Reseating pressure shall not be lower than 94 psi, valve must have test lever stamp 100.0 psi on valve body

Properties:

Flow Control Device

Disk

Bonnet Type

Inside spring

Bonnet Attachment Method

Threaded

Disk Loading Method

Spring

Valve Discharge Flow Rate

423.0 pounds per hour

Connection Style

G46b plain (pipe) 2nd end

Valve Operation Method

Automatic

Features Provided

Bonnet packing and pressure tight outlet side

Thread Size

0.500 inches 2nd end

Thread Size

1.000 inches 1st end

Opening Pressure Setting

100.0 pounds per square inch

Thread Series Designator

Npt 2nd end

Thread Series Designator

Npt 1st end

NSN

4820-01-189-3920

Part Number

75421-091

Description

Valve,safety Relief

CAGE

02964

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 75421-091 NSN 4820-01-189-3920

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.:

MPPWN00001

SPI Rev.:

SPC Mkg:

LVL_A:

LVL_B:

Freight Classification

NMFC

UFC

LTL

LCL

WCC

TCC

SHC

ACC

NMFC:

127220

UFC:

64490

LTL:

77.5

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