Gefa Processtechnik GmbH
About us
Since 1964 GEFA Processtechnik GmbH offers you innovative solutions in the fields of industrial valves and filtration technology. We also offer a wide range of products for specific applications and are ready to develop the perfectly tailored solution together with you. Our extensive stockkeeping guarantees short delivery times!
Our high demands on the quality of our products and the sustainable use of raw materials and energy are regularly confirmed by external certification bodies. Since 1992 we have been certified according to EN ISO 9001 and have extended these certifications by ISO 14001.
In the future we will continue to work on new strategies for the responsible use of precious resources and sustainable corporate management!
Innovative valve technology
We are proud to always find the right solutions for our customers with our valves. Our company history is characterized by innovation and further development. Valve technology has been our core business from the very beginning.
Over the years, our own products have evolved from the commercial products, into which customer requirements and our product experience have been incorporated.
Efficient filtration technology
Our many years of experience and expertise enable us to offer you high-quality and technically advanced filtration and separation solutions for many applications in solid-liquid separation. Upon customer request we are of course happy to offer complete solutions in the field of liquid filtration.
We look forward to making our innovative power combined with the know-how we have acquired over the years available to you.
Products
Butterfly Valve KG9
Wafer type KG 9 Technical data: Wafer type butterfly valve for installation between flanges EN 1092, PN 10/16, ASME class 150. Two-piece body, self-centring, one-piece disc and stem, bubble-tight up to 16 bar, vacuum-tight. Face-to-face dimension - DIN EN 558 line 20 API 609 table 1 Mounting flange - DIN EN ISO 5211 Test - DIN EN 12266 P10 P11 P12 Leakage rate A DN 50 – DN 300
Granulate and bulk material butterfly valve
Technical data Compact butterfly valve for installation between flanges EN 1092, PN 10/16 and ASME Class 150. Two-piece body, self-centring, valve disc and shaft in one piece. Wear and abrasion resistant design, without seals in the media flow. Circumferential annular gap between disc and housing, adapted to your requirements. Disc and housing in polished design available on request. Switching in upright product column (depending on medium) possible. Nominal sizes DN 50 - DN 500 Face-to-face dimension DIN EN 558 Series 20, API 609 Table 1, other face-to-face lengths available on request Mounting flange DIN EN ISO 5211 Certifications Possible in consultation (FDA approval, foodstuffs certification 1935/2004, ATEX) Applications and industries Silo systems Solids (granulates, powder) Bulk solids technology High purity plastic granulates Chemical industry Food industry
Solid ball valves
PM series (FK type) Technical Data Our solids ball valve in two-piece design is for installation between flanges according to EN 10921, the ball is centrically counter-bearing. The solids ball valve is particularly suitable for difficult applications where dry and abrasive solids such as powder, ash, granules, etc. are used. Sizes DN 25 - DN 200 Passage Full bore Pressure ratings PN 10 - 40, ASME Class 150/300 lbs (other pressure ratings on request) Operating temperature -60 °C to +650 °C Special features Designed for demanding applications with dry, abrasive solids (powder, ash, etc.), only one preloaded spring seat ring, bearing and spring chamber sealed against contamination Mounting flange DIN EN ISO 5211 Test DIN EN 12266-1
Knife gate valve AT500 / AT510F
Technical data Lug and wafer type knife gate valve for installation between flanges acc. to EN 1092-1/PN 10. Also suitable for deadend service in vertical pipelines and below silos. ATEX approved for category II 1/2 D c TX. One-piece body with funnel-shaped outlet for the prevention of product deposits, sealing on one side, flushing connections in the body at the end of the plate stroke allows the closing of the standing product column. Sizes DN 300 - DN 700 Flange DIN EN 1092-1 PN 10 Face-to-face dimension Manufacturer standard Body GGG40, EN GJS-400-15 Coating EKB, both inside and outside Colour RAL 9005, electrically conductive Plate 1.4301 or 1.4571 Sealings NBR Package PTFE / NBR Certifications CE-Marking, FDA approval, ATEX Applications and Industries Pulverized coal firing systems Cement plants Steel plants Power plant industry Petrochemistry Chemical industry Silo-Trucks Solids (powder) Bulk goods technology Dosing of solids
Knife gate valve AT200 F
Technical data Lug type knife gate valve for installation between flanges acc. to EN 1092-1/ PN 10. Also applicable as wafer type and suitable for dead-end service. ATEX approved for category II 1D/2GD c. For granulated solids, such as carbon dust. Two-piece body with conically designed plate bed milling groove. Lateral plate guidance interrupted alternately in the front and rear body. Bidirectional tight shutoff in both flow directions. Sizes DN 200 - DN 1000 Flange DIN EN 1092-1 PN10 Face-to-face dimension according to DIN EN 558 line 20 (DIN 3202 K1) Body EN-GJL-250 (GG 25), narrowed in the bore Coating EKB, both inside and outside Colour RAL 9005, electrically conductive Plate 1.4301 or 1.4571 Scraper PTFE with MVQ support Sealings Ceramic fibre, NBR, EPDM, FPM Certifications CE-Marking, FDA approval, ATEX Applications and Industries Pulverized coal firing systems Cement plants Steel plants Power plant industry Petrochemistry Chemical industry Solids (powder)