New PROTEGO® Valves


The PROTEGO® Type VN-A-PC pilot-controlled diaphragm valve is a newly developed valve for pressure and vacuum relief. Primarily used as a device for outbreathing in tanks, vessels, and process engineering equipment it also offers reliable protection from overpressure and/or vacuum.

Special Features and Advantages:

  • corrosion-resistant pilot valve
  • max. 10% Technology for minimum pressure increase until full lift
  • Field-Test-Connection on request
  • Field-Test-Kit on request

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The V/SV-XL and V/SV-XXL type PROTEGO® valve is a highly developed optimized vacuum relief valve with excellent flow performance. It is primarily used as a device for relieving vacuum in tanks, containers and process engineering equipment. 

Special Features and Advantages:

  • extreme tightness and hence least possible product losses and reduced environmental pollution
  • the valve pallet is guided within the housing to protect against harsh weather conditions
  • can be used in areas subject to explosion hazards
  • self draining
  • maintenance friendly design
  • best technology for API-tanks



The Research and Development Team has done approval tests according US Coast Guard with already certified ATEX devices. All devices from 2” up to 16”  passed the  tests successfully for explosion group IIA and 1,1 bar (abs.). The name of the new device is DA-UCG-NG/DN-IIA-P1,1. The housings are identical with the PROTEGO® DA-UB. It will take some time to pass all formalities to get the certification.

Technical Information

Visit PROTEGO® at trade fairs and events

We would be pleased to meet you in person at one of our trade fair stands!

  • UK AD & Biogas, 05. - 06. July 2017,  Birmingham, UK 
  • OGA, 11.-13. July 2017, Kuala Lumpur, Malaysia
  • Fenasucro & Agrocana, 22.-25. August 2017, Sertãozinho - São Paulo, Brazil
  • CIPPE, 23.-25. August, Shanghai, China


More Trade Fairs and Events