Part Number P491 Safety Relief Valve

SKU: 4820000156231

P491 Safety Relief Valve Datasheet

Thread Direction:
Right-hand 1ST end
Flow Control Device:
Poppet
Bonnet Type:
Inside spring
Bonnet Attachment Method:
Integral
Disk Loading Method:
Spring
Maximum Operating Temp:
-54.0 degrees celsius 1ST response
Maximum Operating Temp:
110.0 degrees celsius 2ND response
Connection Style:
G50 external seat for gasket seal (boss) 1ST end
Connection Style:
External seat for gasket seal (boss) 1ST end
Valve Operation Method:
Automatic
Connection Type:
Threaded external boss 1ST end
Features Provided:
Valve stem lock shield
Maximum Operating Pressure:
50.0 pounds per square inch single response
Thread Size:
0.562 inches 1ST end
Outside Diameter Tube Accommodated:
0.375 inches 1ST end
Material Specification:
QQ-A-225/6, ALLOY2024, T4 federal specification single material response
Media For Which Designed:
Air single response
Surface Treatment Specification:
MIL-A-8625, TYPE1, CLASS1 military specification single treatment response
Style Designator:
C6 straight thru
Style Designator:
Straight thru
Test Data Document:
18876-10177850 drawing (this is the basic governing drawing, such as a contractor drawing, original equipment manufacturer drawing, etc. excludes any specification, standard or other document that may be referenced in a basic governing drawing)
Manufacturer Cage:
91816
Trade Information:
  • Schedule B: 8481400000
  • SITC: 74740
  • End Use: Industrial machines, other
  • NAICS: 332911
  • USDA: 1

Safety or relief valves

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