Shut-off valves in biogas plants

Advantages of GEFA valves in biogas plants

Biogas plants are a great way to generate renewable energy from organic materials through the microbial decomposition process. However, due to the nature of the biogas and other water polluting substances and residues, biogas plants can also be a source of odors, pollutants and noise. By installing GEFA valves in your biogas plant, you can ensure quality, reliability and safety.

With our powerful product range we offer you the possibility to get suitable knife gate valves and butterfly valves for your biogas application. Our offer ranges from nominal size DN 50 up to DN 1800!

DOMINO knife gate valve for high operational reliability

The high operational reliability of our gate valves is ensured above all by their tight shut-off in both pressure flow directions and their insensitivity to pressure surges. In addition, the knife gate valves still function smoothly even after long downtimes typical of the industry.

DOMINO Knife gate valve AT100 (SD1)

Wafer type

Face-to-face dimension: EN 558-1 line 20
Body: EN GJS-250 (GG25)
Gate: 1.4301 or 1.4571
Seal: NBR (EPDM, FPM, etc.)
Sizes: DN 100 - DN 400

Further product information can be found here

Knife gate valve AT100

DOMINO Knife gate valve AT200 (SD7)

Lug type

Face-to-face dimension: EN 558-1 Reihe 20
Body: EN GJS-400 (GGG40)
Gate: 1.4301 oder 1.4571
Seal: NBR (EPDM, FPM, etc.)
Sizes: DN 50 - DN 1800

Further product information can be found here

Knife gate valve AT200

Butterfly valves with high life expectancy

Our centrally mounted butterfly valves are ideally suited for the biogas industry due to their rational and safe use. The one-piece housing is completely elastomer lined with the seat ring as a multifunctional sealing element. The edge-free transition to the dovetail guide guarantees secure locking with high tear resistance. High flow velocities, crust formation and abrasive media are optimally controlled.

Soft seated butterfly valve KG2/KG4 DVGW gas

DVGW type examination gas according to DIN EN 13774 Seat ring made of NBR

Face-to-face dimension: EN 558-1 line 20
Body: EN GJS-400-15 (GGG40)
Disc: stainless steel 1.4408
Seat: EPDM (white), NBR, MVQ (silikon), FPM, PU, NBR DVGW Gas
Sizes: DN 50 - DN 500

Further product information can be found here

Butterfly valve KG2/KG4

Download here our biogas flyer

Biogas Systems (GB) (2.9 MB)

If you are looking for an optimally matched valve for your biogas plant, please feel free to contact our team of experts - our specialists will be happy to advise you!

Dirk Pollak

Product Manager
Knife Gate Valves

+49 231 61009-355

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Markus Szymanski

Product Manager
Soft sealing Valves

+49 231 61009-336

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Shut-off valves in biogas plants

Advantages of GEFA valves in biogas plants