A644X2-12
View detailed technical data, stock status, and sourcing information for: A644X2-12
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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.
integral bonnet attachment method, inside spring bonnet type, 3a all ends thread class, poppet flow control device, right-hand all ends thread direction
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Thread Class
- 3a all ends
- Thread Direction
- right-hand all ends
- Flow Control Device
- poppet
- Bonnet Type
- inside spring
- Bonnet Attachment Method
- integral
- Disk Loading Method
- spring
- Maximum Operating Temp
- 225.0 fahrenheit single response
- Connection Style
- flared (tube) all ends
- Valve Operation Method
- automatic
- Connection Type
- threaded external tube all ends
- Features Provided
- bonnet packing and pressure tight outlet side
- Thread Quantity Per Inch
- 12 all ends
- Adjustable Pressure Range
- +10.0 to 50.0 pounds per square inch
- Maximum Operating Pressure
- 50.0 pounds per square inch single response
- Nominal Thread Size
- 1.500 inches all ends
- Seat Angle
- 37.0 degrees all ends
- Opening Pressure Setting
- 35.0 pounds per square inch
- Nominal Outside Diameter Tube Accommodated
- 0.750 inches all ends
- Material
- steel comp 303 body
- Material
- steel comp 303 seat
- Material
- steel comp 416 flow control device
- Material Document And Classification
- fedstd66,aisi303/sae30303 fed std single material response body
- Material Document And Classification
- fedstd66,aisi303/sae30303 fed std single material response seat
- Material Document And Classification
- fedstd66,aisi416/sae51416 fed std single material response flow control device
- Media For Which Designed
- water-oil-gas single response
- Surface Treatment
- passivate
- Style Designator
- angle
- Thread Series Designator
- un all ends
- Furnished Items And Quantity
- 2 ferrule
Related Parts
This NSN group includes multiple components designed to meet specific performance and operational standards. Each listing provides detailed specs, functionality data, and replacement compatibility information:
| Part Number | Name |
|---|---|
| 21C2222-285 | Safety Relief Valve |
| A644X2-12 | Safety Relief Valve |
| A644X2-2-12 | Safety Relief Valve |
| A644XB-2-12-2 | Safety Relief Valve |
| A644XB2-12 | Safety Relief Valve |
| A644XB2-12-2 | Safety Relief Valve |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 4820-00-010-1682?
Does the NSN 4820-00-010-1682 have a Schedule B code assigned?
Does NSN 4820-00-010-1682 require demilitarization?
Does NSN 4820-00-010-1682 contain precious materials?
Does NSN 4820-00-010-1682 contain hazardous materials?
When the NSN 4820-00-010-1682 was assigned to the Federal Catalog?
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