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9100 Series Flanged Pressure Relief Valve

Brand: Mercer Valve
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The Mercer Valve 9100 Series Pressure Relief Valve is “State of the Art” in soft seat, high flow rate, pressure relieving devices. 

The 9100 Series is a continuation of the 8100 Series incorporating our patented “Auto Seat Technology”® into its design. 

Mercer Valve’s “Auto Seat Technology“® has made the 9100 Series an industry leader with its reliable, repeatable set pressures. 

The patented soft seat design and fully guided disk allow the valve to continually outlast the competition. 

The soft seat 9100 Series has a field-proven lip seal design, which allows for a tighter seal up to set pressure. 

This tight seal reduces leaks and limits product loss.

The 9100 Series is manufactured in accordance with the requirements of ASME Boiler and Pressure Vessel Code, Section VIII, Division 1 for Air/Gas and Liquid service. 

The 9100 Series is well suited for specialty gases, compressors, separators, transmission, gathering lines and other production processes.
Features
  • Designed with "Auto Seat Technology"®. 
  • Consistent Set Pressures allowing repeatable uses without repair or resetting.
  • Open, Close, Seat and Seal™. 
  • Fully guided disk keeps the disk properly aligned, opening and closing, helping to reseat the valve. 
  • Mechanical Stop prevents wear on parts and controls valve lift. 
  • Low rated and fully guided spring allows for more consistent set pressures from pop to pop. 
  • Pop Action relief allows valve to go to full lift at set pressure. Helps with DOT regulated applications. 
  • Built in accordance with the requirements of ASME Boiler and Pressure Vessel Code. Sec. VIII Div 1. 
  • Non-rising stems allowing valves to be installed in small areas.
The Mercer Valve 9100 Series Pressure Relief Valve is “State of the Art” in soft seat, high flow rate, pressure relieving devices. 

The 9100 Series is a continuation of the 8100 Series incorporating our patented “Auto Seat Technology”® into its design. 

Mercer Valve’s “Auto Seat Technology“® has made the 9100 Series an industry leader with its reliable, repeatable set pressures. 

The patented soft seat design and fully guided disk allow the valve to continually outlast the competition. 

The soft seat 9100 Series has a field-proven lip seal design, which allows for a tighter seal up to set pressure. 

This tight seal reduces leaks and limits product loss.

The 9100 Series is manufactured in accordance with the requirements of ASME Boiler and Pressure Vessel Code, Section VIII, Division 1 for Air/Gas and Liquid service. 

The 9100 Series is well suited for specialty gases, compressors, separators, transmission, gathering lines and other production processes.
Features
  • Designed with "Auto Seat Technology"®. 
  • Consistent Set Pressures allowing repeatable uses without repair or resetting.
  • Open, Close, Seat and Seal™. 
  • Fully guided disk keeps the disk properly aligned, opening and closing, helping to reseat the valve. 
  • Mechanical Stop prevents wear on parts and controls valve lift. 
  • Low rated and fully guided spring allows for more consistent set pressures from pop to pop. 
  • Pop Action relief allows valve to go to full lift at set pressure. Helps with DOT regulated applications. 
  • Built in accordance with the requirements of ASME Boiler and Pressure Vessel Code. Sec. VIII Div 1. 
  • Non-rising stems allowing valves to be installed in small areas.
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Specifications

Brand

Standard Inlet Sizes

  • 3/4” 1”
  • 3/4” 1” 1-1/2”
  • 1” 1-1/2”
  • 1-1/2” 2”
  • 2” 3”
  • 3”
  • 3” 4”
  • 4”

Inlet and Outlet Connection Types Available

  • RF x RF , RTJ x RF , RTJ x RTJ

Actual Orifice Diameter (inch)

  • 0.281”
  • 0.394”
  • 0.520”
  • 0.655”
  • 0.775”
  • 1.050”
  • 1.350”
  • 1.625”
  • 2.020”
  • 2.280”
  • 2.500”
  • 3.000”

Actual Orifice Area (in²)

  • 0.062 in²
  • 0.122 in²
  • 0.212 in²
  • 0.337 in²
  • 0.472 in²
  • 0.865 in²
  • 1.430 in²
  • 2.074 in²
  • 3.205 in²
  • 4.080 in²
  • 4.909 in²
  • 7.069 in²

API Orifice Area (in²)

  • 0.110 in²
  • 0.196 in²
  • 0.307 in²
  • 0.503 in²
  • 0.785 in²
  • 1.287 in²
  • 1.838 in²
  • 2.853 in²
  • 3.600 in²
  • 4.34 in²
  • 6.38 in²

Pressure Ranges (psi)

  • 15to 2999
  • 15 to 2400
  • 15 to 2000
  • 15 to 1250
  • 15 to 1000
  • 15 to 740
  • 15 to 525

Standard Temperature Range (°F)

  • -20to 400

ASME Flow Coefficient, Kd (Gas)

  • 0.818

ASME Flow Coefficient, Kd (Liquid)

  • 0.707
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