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    Val-Tex valve lube sealants, equipment
    Sealweld valve lube sealants, equipment
    Tacmina smoothflow pumps
    Williams air driven metering pumps
    Kenco level measurement

    • OsecoElfab rupture discs & accessories
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    • Elmac / Protectoseal low pressure protection
    • Val-Tex valve lube sealants, equipment
    • Sealweld valve lube sealants, equipment

      Products | Delta Engineering B.V.

      OsecoElfab rupture discs & accessories
      Elmac / Protectoseal flame arresters 
      Elmac / Protectoseal pressure protection
      Val-Tex valve lube sealants, equipment
      Sealweld valve lube sealants, equipment
      Tacmina smoothflow pumps
      Williams air driven metering pumps
      Kenco level measurement

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    • Elmac / Protectoseal flame arresters
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6 June 2025
Categories
  • Emergency Relief Vents E
Tags

7800 Series End-Of-Line Emergency Pressure vent

Protectoseal Series 7800 Emergency Pressure Vent is designed to provide emergency relief capacity beyond that furnished by the operating vent on tanks. Under normal operating conditions, the vent pallet assembly is closed providing an effective vapor seal. In the event of an emergency (fire involvement of the tank), the pallet lifts in response to the increased pressure in the tank’s vapor space. Vapor is expelled, thereby protecting the tank from dangerous over-pressurization. Pallet assembly automatically closes and reseals when the pressure is reduced.

Options

  • Flange Connections: Other drilling patterns available upon request
  • Diaphragm Materials: FEP, Viton®, Buna N, EPDM, Neoprene; other materials available upon request
  • Special Coatings: PROSHIELD™, FEP and Kynar®
  • Instrumentation: Mechanical or electronic lift indicator
  • Material certifications for castings
  • PURE-TECH™ Design – Special cleaning and packaging for the storage of ultrapure liquids
Request quote

Additional documentation

Below you can download the following documentation:

Product Specification Sheet
Installation & Maintenance Instructions

Product Specifications

  • Sizes: 2” (DN 50) through 24” (DN 600)
  • Flange Connections: ANSI, DIN 16 PN or API flange connections
  • Materials: Aluminum, Ductile Iron, Carbon Steel, Stainless Steel and Alloy C / C276
  • Testing and Certifications: Conforms with the latest ATEX Directive
  • Standard Setting Range*: Pressure: 1 – 48 oz/in2 | 4.31 – 206.84 mbar
  • Spring-loaded models available to achieve higher than standard settings, Series 9800

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
  • Serialized unit and associated weights for easy identification and traceability

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