Safety Relief Valve NSN 4820-01-528-4391

Item Description

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.

NSN: 4820-01-528-4391

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Features and Characteristics

Pipe Size Accommodated

0.250 inches all ends

Flow Control Device

Disk

Bonnet Type

Inside spring

Bonnet Attachment Method

Integral

Disk Loading Method

Spring

End Application

Process panel assembly

Valve Operation Method

Automatic

Adjustable Pressure Range

+5.0/+150.0 pounds per square inch

Maximum Operating Pressure

150.0 pounds per square inch 1st response

Part Name Assigned By Controlling Agency

Relief valve

Special Features

Ivalve is machined from solid pvc; supplied w multiple springs for various cracking pressures; adjustment bolt to change cracking pressure; vitron diaphragm. Application: corrosive or ultra-pure liquids

Material

Plastic polyvinyl chloride body

Media For Which Designed

Water, salt 1st response

Style Designator

Err-090

FSC

4820 Nonpowered Valves

NIIN

015284391

NSN

4820015284391

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

RVD-025V-PV

Cage Code:

53141

Status:

MSDS:

Part Number:

TVD-025V-PV

Cage Code:

53141

Status:

MSDS:

Part Number:

03T61TM-0250 REV F FIND 114

Cage Code:

62950

Status:

MSDS:

Part Number:

03Y61TM=-0247 REV H3 FIND 126

Cage Code:

62950

Status:

MSDS:

Part Number:

0502

Cage Code:

62950

Status:

MSDS:

Foreign Trade & Schedule B

What is a Schedule B number? Find more information at help.cbp.gov

Schedule B Number: 8481400000
NAICS: 332911
SITC: 74740
Description: Safety or relief valves
End Use (Code 21180):
Industrial machines, other

Q & A

Frequently asked questions for NSN 4820-01-528-4391

What are the manufacturers of nsn 4820015284391?

Plast O Matic Valves Inc (53141)
Exceltec Intl Corp (62950)

Does this nsn 4820015284391 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 4820015284391
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.

Does nsn 4820015284391 contain any precious metals?
No precious metal content.

Does nsn 4820015284391 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 4820015284391?
No known electrostatic discharge.

Identification Group

Item Identification Guide (IIG) and Item Name Code (INC)

INC

FIIG

App. Key

Cond. Code

Status

INC:

05488

FIIG:

A046B0

App. Key:

Cond. Code:

Status:

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Certificate of Conformance
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