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8740 Series Pressure & Vacuum Relief Vent

Brand: Protectoseal Company
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The Protectoseal Series 8740 In-Line Conservation Breather Vents are used to conserve costly vapors and to protect a tank or vessel from damage caused by excessive pressure or vacuum accumulations during normal operation. 

The design makes these vents particularly suited for mounting inside tank house installations. 

Outlet pipes can direct vapors to some appropriate area for discharge. Locating the vent inside the building facilitates maintenance and eliminate hazardous roof top inspections.
Features
  • Certified flow curves validating flow characteristics of unit
  • Certified test report verifying specified settings and leakage performance
  • “Air-cushion” pallet design for low leakage performance of no more than 1 SCFH at 90% of the set pressure
  • Pallet assembly guides and center pallet stem guide to ensure proper alignment of pallet assembly on the seat and smooth lifting and reseating action
  • Automatic condensate drainage design to mitigate freezing, binding and clogging
  • Swing-bolt design facilitating inspection and easy maintenance
  • Serialized unit and associated weights for easy identification and traceability
The Protectoseal Series 8740 In-Line Conservation Breather Vents are used to conserve costly vapors and to protect a tank or vessel from damage caused by excessive pressure or vacuum accumulations during normal operation. 

The design makes these vents particularly suited for mounting inside tank house installations. 

Outlet pipes can direct vapors to some appropriate area for discharge. Locating the vent inside the building facilitates maintenance and eliminate hazardous roof top inspections.
Features
  • Certified flow curves validating flow characteristics of unit
  • Certified test report verifying specified settings and leakage performance
  • “Air-cushion” pallet design for low leakage performance of no more than 1 SCFH at 90% of the set pressure
  • Pallet assembly guides and center pallet stem guide to ensure proper alignment of pallet assembly on the seat and smooth lifting and reseating action
  • Automatic condensate drainage design to mitigate freezing, binding and clogging
  • Swing-bolt design facilitating inspection and easy maintenance
  • Serialized unit and associated weights for easy identification and traceability
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Specifications

Brand

Size

  • 2” (DN 50)
  • 3” (DN 80)
  • 4” (DN 100)

Connections

  • Inlet Connection mates with 125# / 150# ANSI and DIN PN 16
  • Outlet Connection has Standard NPT Threads

Materials

  • Aluminum
  • Ductile Iron
  • Stainless Steel

Standard Setting Range

  • Pressure: 1 - 26 oz./in² | 4.31 - 112.04 mbar
  • Vacuum: 1 oz./in² | 4.31 mbar
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Documentation

Data Sheet

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