4820-01-270-4268
Find complete technical information, availability, and procurement data for: 4820-01-270-4268
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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.
automatic valve operation method, 12 all ends bolt hole quantity, 450.0 fahrenheit single response maximum operating temp, disk flow control device, round with holes all ends flange shape
Product Characteristics
Below you’ll find the complete technical specifications and performance data for this part, including material details and compliance information.
- Flow Control Device
- disk
- Bolt Hole Quantity
- 12 all ends
- Maximum Operating Temp
- 450.0 fahrenheit single response
- Valve Operation Method
- automatic
- Flange Shape
- round with holes all ends
- Connection Type
- flange all ends
- Mounting Position
- horizontal
- Valve Size
- 14.000 inches
- Maximum Operating Pressure
- 150.0 pounds per square inch single response
- Nominal Outside Diameter
- 21.000 inches all ends
- Face To Face Distance
- 31.000 inches
- Nominal Thickness
- 1.375 inches all ends
- Bolt Hole Nominal Diameter
- 1.125 inches all ends
- Bolt Circle Nominal Diameter
- 18.750 inches all ends
- Flange Face Design
- raised straight all ends
- Raised Face Nominal Height
- 0.063 inches all ends
- Raised Face Nominal Diameter
- 16.250 inches all ends
- Special Features
- swing check type
- Material
- copper alloy 922 flow control device
- Material
- copper alloy 922 seat
- Material
- iron cast uns f32800 body
- Material Document And Classification
- astm a395 assn std single material response body
- Material Document And Classification
- astm b61 assn std single material response flow control device
- Material Document And Classification
- astm b61 assn std single material response seat
- Media For Which Designed
- steam single response
- Style Designator
- straight thru flanged ends
Replaces National Stock Numbers
Below is a list of NSNs that have been officially superseded by this NSN:
| NSN | Name | Date |
|---|---|---|
| 4820-01-271-3668 | No Name Available | 09/01/2004 |
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 |
|---|---|
| 31F-DI-7 | Check Valve |
| 31F-DI7-14IN | Check Valve |
| PS-3114D700 | Check Valve |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 4820-01-270-4268?
Does the NSN 4820-01-270-4268 have a Schedule B code assigned?
Does NSN 4820-01-270-4268 require demilitarization?
Does NSN 4820-01-270-4268 contain precious materials?
Does NSN 4820-01-270-4268 contain hazardous materials?
When the NSN 4820-01-270-4268 was assigned to the Federal Catalog?
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