Model 945 Pressure & Vacuum Tank Vents

Performance Features

  • Suitable for normal pressure and vacuum relief
  • Complies with API 2000 Seventh Edition / EN ISO 28300
  • Certified to ATEX – Directive 2014/34/EU and EN ISO 16852:2016
  • Weight-loaded offset pallet design; discharges to outlet pipe (guidance is internal to the valve body protecting from freeze-up during inclement weather)
  • Achieves full open (flowing pressure/vacuum) at just 10% overpressure. Other overpressure settings available on request.
  • Provides premium sealing with FEP diaphragms (metal-to-metal available for special requirements or higher settings)
  • Leakage rates much tighter than API 2000/EN ISO 28300 requirements
  • Weather-hood and screen protect pallets/seats from environment and contamination
  • Pallets, seats & stem-guides made from stainless steel
  • Pipeaway design prevents emission losses
  • Available in nom. diameter 2” – 12”

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  • Specification Options
  • Materials
  • Documentation

Protection

  • Gas/air or vapour/air mixtures II 1/2 G Ex h IIBT1...T6 Ga/Gb

Connection Type

  • EN or DIN: ISO 7005-1
  • JIS B 2220
  • ASME B16.5

Compliance with Guidelines

  • Guideline 2014 / 34 / EU
  • EN ISO 28300
  • API Standard 2000 7th Edition

Materials of Construction

  Stainless Steel Aluminum Carbon Steel FEP Other Materials on request
Diaphragm  
Valve Set/Pallet
Valve Seat      
Body  

Dimensions

Size A B C D Weight*
in mm in mm in mm in mm in mm lbs kg
2 50 11.811 300 16.272 413 2.146 54 9.843 250 71 32
3 80 13.484 343 16.811 427 3.307 84 11.811 300 93 42
4 100 18.11 460 18.465 469 4.217 107 14.213 361 199 90

* Dependent on set pressure

Model 945 Dimensions Illustration

Product Literature

Model 945 Brochure

Installations

Model 945 150 Installation Instruction
Model 945 200 Installation Instruction
Model 945 250 Installation Instruction
Model 945 300 Installation Installation Instruction