NMP-1531
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An item that controls the flow of a fluid by rotation of a ported plug within a suitable ported seat. It must not have any lubrication other than from the fluid controlled, nor contain any nonmetallic seal between plug and seat. See also valve, seatless and valve, plug.
disk flow control device, inside screw bonnet type, spring disk loading method, bolted bonnet attachment method, 4 all ends bolt hole quantity
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
- Bonnet Type
- inside screw
- Bonnet Attachment Method
- bolted
- Disk Loading Method
- spring
- Bolt Hole Quantity
- 4 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
- Valve Size
- 1.000 inches
- Adjustable Pressure Range
- +156.0 to 186.0 pounds per square inch
- Maximum Operating Pressure
- 225.0 pounds per square inch single response
- Nominal Outside Diameter
- 3.500 inches 2nd end
- Nominal Outside Diameter
- 4.250 inches 1st end
- Nominal Thickness
- 0.438 inches all ends
- First Connection Face To Centerline Distance
- 3.374 inches
- Bolt Hole Nominal Diameter
- 0.625 inches all ends
- Second Connection Face To Centerline Distance
- 3.312 inches
- Bolt Circle Nominal Diameter
- 2.375 inches 2nd end
- Bolt Circle Nominal Diameter
- 3.125 inches 1st end
- Flange Face Design
- raised straight all ends
- Raised Face Nominal Height
- 0.062 inches all ends
- Raised Face Nominal Diameter
- 1.375 inches 2nd end
- Raised Face Nominal Diameter
- 2.000 inches 1st end
- Material
- steel body
- Material
- steel corrosion resisting flow control device
- Material
- steel corrosion resisting stem
- Style Designator
- angle flanged ends
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 |
|---|---|
| D-82C/SP NMP153 | Safety Relief Valve |
| D-82C1SP NMP1531 | Safety Relief Valve |
| D-82C1SP NMP1531OPTH 165PSI SET | Safety Relief Valve |
| NMP-1531 | Safety Relief Valve |
| NMP-1531 OPT-H 1 | Safety Relief Valve |
| NMP-1531 OPT-H 156T186PSI | Safety Relief Valve |
FAQs
Find helpful answers about installation, operation, maintenance, compliance, and troubleshooting.
What is the FSCG of the NSN 4820-01-333-2890?
Does the NSN 4820-01-333-2890 have a Schedule B code assigned?
Does NSN 4820-01-333-2890 require demilitarization?
Does NSN 4820-01-333-2890 contain precious materials?
Does NSN 4820-01-333-2890 contain hazardous materials?
When the NSN 4820-01-333-2890 was assigned to the Federal Catalog?
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