Safety Relief Valve

65A102C77

(NSN) National Stock Number

4820-00-107-3234

Federal Supply Classification

4820 Nonpowered Valves

Item Name Code

05488

Schedule B Code

8481400000

Summary

0.750 inches 1st end nominal pipe size accommodated, right-hand 1st end thread direction, poppet flow control device, spring disk loading method, 280.0 deg fahrenheit single response maximum operating temp, plain (pipe) 1st end connection style

DAC	HCC	DMIL	RNCC
1	-	-	5

RNVC	SADC	MSDS	RNAAC
2	-	-	KE

Identification

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.

INC	FIIG	Concept	Condition
05488	A046B0	1	2

Specifications

Nominal Pipe Size Accommodated

0.750 inches 1st end

Details

A measurement of the pipe size the item will accommodate.

Thread Direction

right-hand 1st end

Details

The direction of the thread when viewed axially. a right-hand thread winds in a clockwise direction while a left-hand thread winds in a counterclockwise direction.

Flow Control Device

poppet

Details

The part that controls the flow through the item.

Disk Loading Method

spring

Details

The means of closing the item when inlet pressure decreases.

Maximum Operating Temp

280.0 deg fahrenheit single response

Details

The maximum temperature at which the item is rated to operate for an extended period of time.

Connection Style

plain (pipe) 1st end

Details

The style designation indicating the configuration that most nearly corresponds to the appearance of the connection.

Valve Operation Method

automatic

Details

The means used to control the operation of the valve.

Connection Type

threaded external pipe 1st end

Details

Indicates the type of connection/s/.

Maximum Operating Pressure

200.0 pounds per square inch single response

Details

The maximum pressure at which the item is rated for operation.

Nominal Thread Size

0.750 inches 1st end

Details

A designation that is used for the purpose of general identification of the thread.

Opening Pressure Setting

125.0 pounds per square inch

Details

The predetermined pressure at which the item is calibrated to open.

Material

copper alloy 360 body

Details

The chemical compound or mechanical mixture properties of which the item is fabricated.

Material

copper alloy 360 flow control device and rubber butadiene-acrylonitrile class nbr flow control device

Details

The chemical compound or mechanical mixture properties of which the item is fabricated.

Material

copper alloy 360 seat

Details

The chemical compound or mechanical mixture properties of which the item is fabricated.

Material Document And Classification

qq-b-626,alloy360 fed spec single material response body

Details

The specification, standard, or manufacturer's reference and the classification designation, such as class, condition, temper, and the like, that identifies the material.

Material Document And Classification

qq-b-626,alloy360 fed spec single material response flow control device

Details

The specification, standard, or manufacturer's reference and the classification designation, such as class, condition, temper, and the like, that identifies the material.

Material Document And Classification

qq-b-626,alloy360 fed spec single material response seat

Details

The specification, standard, or manufacturer's reference and the classification designation, such as class, condition, temper, and the like, that identifies the material.

Media For Which Designed

air 1st response

Details