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Instantly add the Varec Series 221 Emergency Pressure Relief Manway Covers and 50,000+ more product series to your store or catalog  
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Emerson Varec Emergency Pressure Relief Manway Cover, 221 Series

Varec Series 221 Emergency Pressure Relief Manway Covers

Brand: Varec
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The 221 Series is designed to provide emergency venting of low pressure storage tanks and vessels.
Features
  • Available in emergency pressure only and emergency pressure and vacuum relief models.
  • Cast metal cover provides added strength and extended life.
  • Hinged cover provides a fixed pivot point, ensures proper reseating and added safety.
  • Cover cannot separate from the base.
  • Easily lifted open to provide a large, unobstructed passage for easy tank access.
  • 221PV incorporates a spring loaded vacuum relief valve integral to the cover assembly.
  • Weather hood and screen provided for protection.
  • Non-metallic seat insert on the pallet minimizes leakage.
  • Durable reinforced fabric diaphragm type pressure side seating surface backed by compressible, cellular non-metallic pads for added cushion and reduced leakage.
  • Optional materials available to suit most chemical applications.

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Specifications

Brand

Product Type

  • Tank, Vacuum Valves, Emergency, Emergency Relief Vents, Pressure/Vacuum Relief Valves, Relief Valves, Spring-Loaded Hatches

Materials

  • Carbon Steel, Aluminum, Stainless Steel

Sizes

  • 18" - 24" (450 - 600 mm)

Connections

  • Drilled Flange to API 650

Pressure Settings

  • ½ to 6 oz/in² (22 to 264 kg/m²)

Vacuum Settings

  • ½ to 1 oz/in² (22 to 44 kg/m²)

Documentation

Data Sheets

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