NSN 4820-00-287-3139

Safety Relief Valve

FSC: 4820 NIIN: 002873139

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Product Characteristics

NSN:

4820002873139

Demilitarization:

INC:

05488

Shelf Life:

N/A

Pipe Size Accommodated:

1.000 inches 1st end

Flow Control Device:

Disk

Disk Loading Method:

Spring

Valve Discharge Flow Rate:

93.0 pounds per hour

Maximum Operating Temp:

800.0 degrees fahrenheit single response

Minimum Operating Temp:

401.0 degrees fahrenheit

Connection Style:

Socket err-100

Valve Operation Method:

Automatic

Connection Type:

Unthreaded internal pipe all ends

Adjustable Pressure Range:

+33.0/+55.0 pounds per square inch

Maximum Operating Pressure:

2000.0 pounds per square inch single response

Opening Pressure Setting:

50.0 pounds per square inch

Special Features:

W/lifting lever and inconel spring

Material:

Steel comp 410 stem

Material Specification:

Astm a479 assn standard single material response flow control device

Media For Which Designed:

Steam single response

Style Designator:

Angle

Nondefinitive Specification/std Data:

A-1 type and c class

Part Numbers

1990
DRESSER, INC.
1990T-1/21 35-50PSI
DRESSER, INC.
1990T-1/2X1-36-50PSI
DRESSER, INC.

Shipping & Handling

HMIRS:

No MSDS. No hazardous material.

ESD:

No known electrostatic discharge.

Schedule B:

8481400000 - Safety or relief valves.

Professional Distribution

ITAR Registered
DDTC Registered
HAZMAT Certified
AS9120 Quality Standards
100% Quality Inspections

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Cage Codes

DRESSER, INC. - 16497