NSN 4820-00-220-1850

Datasheet

• Product description
  

  Safety Relief Valve NSN 4820-00-220-1850.

• MPN or Model
  

  R6181AZ

• Schedule B
  8481.40.0000 (Safety or relief valves)
• NMF (National Motor Freight)
  127220 - Pressure Reg/red/relief Valves NOI
• Flow Control Device
  Disk
• Bonnet Type
  Exposed spring
• Bonnet Attachment Method
  Bolted
• Disk Loading Method
  Spring
• Valve Discharge Flow Rate
  13000.0 pounds per hour
• Renewable Seat Ring Type
  Threaded
• Bolt Hole Quantity
  8 1st end
• Flange Shape
  Round with holes 2nd end
• Connection Type
  Flange 1st end
• Features Provided
  Pressure tight outlet side
• Adjustable Pressure Range
  +580.0/+630.0 pounds per square inch
• Opening Pressure Setting
  624.0 pounds per square inch
• Outside Diameter
  6.500 inches 2nd end
• Thickness
  1.000 inches 1st end
• Bolt Hole Diameter
  0.688 inches 2nd end
• Bolt Circle Diameter
  5.188 inches 2nd end
• Flange Face Design
  Plain 2nd end
• Raised Face Height
  0.250 inches 1st end
• Raised Face Diameter
  3.625 inches 1st end
• Style Designator
  Angle
• Reference Number Differentiating Characteristics
  As differentiated by the valve discharge flow rate requirement