Safety Relief Valve NSN 4820-01-478-0818

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: 4820-01-478-0818

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Features and Characteristics

Pipe Size Accommodated

1.500 inches all ends

Flow Control Device

Disk

Bonnet Type

Inside spring

Bonnet Attachment Method

Bolted

Disk Loading Method

Spring

Renewable Seat Ring Type

Bolted

Maximum Operating Temp

150.0 degrees fahrenheit single response

Connection Style

Socket (tube) err-100

Valve Operation Method

Automatic

Connection Type

Unthreaded internal pipe all ends

Adjustable Pressure Range

+100.0/+108.0 pounds per square inch

Maximum Operating Pressure

400.0 pounds per square inch single response

Opening Pressure Setting

105.0 pounds per square inch

Special Features

This valve meets requirements of mil-v-24332, grade b, as modified by p555n21c-9. Inlet and outlet connections iaw buships drawing 803-1385884, 1 1/2" size.Spclghi-shock test gaynes testing laboratories report no. 71305, approved by supships n. N. Va. Ltr cvn shcl/9480-249400-1 ser: 2810-3037 dated 18 oct 1971, lightweight, class 1, type a, mounting location: hull; mounting plane: base. Vibration test ias mil-std-167, type 1, gaynes testing laboratories report no. 67764 dated 9 june 1967. Approved by supships letter ssn537/9600/1 ser. 252-780m dated 11 june 1967

Material

Plastic polytetrafluoroethylene packing

Material Specification

Qq-n-281 federal specification all material responses stem

Style Designator

Err-090

Furnished Items And Quantity

1 spring and 2 tailpiece

FSC

4820 Nonpowered Valves

NIIN

014780818

NSN

4820014780818

Manufacturer Part Numbers

Part numbers registered to this national stock number.

Part Number

Cage

Status

MSDS

Part Number:

SW125B01R0105

Cage Code:

01343

Status:

MSDS:

Part Number:

SW125B01R0105/CDS17037

Cage Code:

15187

Status:

MSDS:

Part Number:

SW125

Cage Code:

01343

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 4820-01-478-0818

What are the manufacturers of nsn 4820014780818?

Anderson Greenwood Lp (01343)
Pentair Valves & Controls Us Lp (15187)

Does this nsn 4820014780818 have a shelf life?
No. This NSN does not have an applicable shelf life.

What is the formal definition of nsn 4820014780818
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 4820014780818 contain any precious metals?
No precious metal content.

Does nsn 4820014780818 contain any hazardous materials?
No MSDS. No hazardous material.

What is the ESD classification of nsn 4820014780818?
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
Quality Inspected Parts
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