Throttling butterfly valves

Throttling butterfly valves are characterized by high quality and long reliable operation. These devices have ATEX certificates that allow them to be used in potentially explosive areas and as an explosion decoupling system (cell valves).

  • Throttling butterfly valves
Donat Czapski Grupa WOLFF zdjecie
DONAT CZAPSKI - I am at your disposal
+48 695 244 220
 info@grupa-wolff.com
We will answer questions about: offer, technical specification, delivery, assembly.

Application

  • Powders, dusts, liquids, gases
  • Loose materials creating explosion hazard
  • Operation in explosion risk zones
  • Flow regulation and dosing of loose materials
  • Possibility to operate in explosion risk zones: 22, 21, 20 and 2, 1, 0

Technical specifications

  • Maximum differential pressure: 6 – 16 bar (depending on the size)
  • Operating temperature: -40°C do + 300°C
  • Range of nominal diameters: DN 50 – DN 600
  • Mounting between flanges as per DIN, ANSI
  • Material design of the casing and the rotary disk: aluminium, stainless steel
  • Material design of the sealing element EPDM, Perbuna
  • Possible design with a pressure sealing element (caulking by means of compressed air)
  • Manual, pneumatic, electric control
  • ATEX 95 certificate for the following zones: 22, 21, 20 and 2, 1, 0
  • Design resistant to pressure impact of up to 10 bar – an ATEX certificate

Scope of works

  • Selection of an optimum solution
  • Installing, commissioning, service

Completed projects for bulk materials

  Designing installations for bulk materials

Depending on the investor’s needs, we are able to provide a single device, as well as design and then build a complete installation for bulk materials. In addition, we design and production dedusting and central vacuum systems (including those for explosive dust).

  Explosion safety

Due to over 25 years of experience in the field of explosion safety, if installation will process flammable or explosive dusts, we are able to make appropriate systems to protect against the effects of an explosion and studies required by law (including explosion risk assessment, determining of explosion hazard zones, explosion protection document).

Do you have any questions?

Donat Czapski Grupa WOLFF zdjecie
DONAT CZAPSKI - I am at your disposal
+48 695 244 220
 info@grupa-wolff.com
We will answer questions about: offer, technical specification, delivery, assembly.

or send your inquiry