GEFA Processtechnik GmbH

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

https://www.gefa.com/en/products/gefa-processtechnik/valve-technology/butterfly-valves/granulate-and-bulk-material-butterfly-valve/kgg-detail

Technical data
Lug type knife gate valve for installation between flanges acc. to EN 1092-1 / PN 10. DN 200-DN 400 also available in PN 16. Also suitable for dead-end service. Two-piece body, bidirectional tight shutoff. Metal guided plate, locked when closed. Self-adjusting COMPACT cross seal, no necessity for gland packing – maintenance-free. Self - cleaning flush-out corners with cutting edge in the lower body area.

Sizes DN 50 - DN 1800
Face-to-face dimension according to EN 558-1 line 20/16 (DIN 3202 K1/K3)
Body GG25, EN GJL-250/GGG40, EN GJS-400-15, Stainless steel 1.4408
Coating EKB, both inside and outside
Colour RAL 5010
Plate Stainless steel 1.4301, 1.4571, 1.4462 etc.
Sealings NBR (EPDM, FPM, PTFE, ceramic fibre etc.)
Certifications CE-Marking, FDA approval, ATEX, SIL

Applications and Industries
Biogas plants
Sewage plants
Waste water treatment plant
Pump stations
Organical fermentation plants
Coal-fired power plant
Paper industry
Ship construction
Storm water holding tank
Recycling of waste
Wast incineration plants
Chemical industry
Coal-fired power plant
Power plant industry
Petrochemistry
Cement industry
Sludge treatment
Water treatment
Breweries
Food industry

https://www.gefa.com/en/products/gefa-processtechnik/valve-technology/knife-gate-valves/at200-detail

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 400 - 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

https://www.gefa.com/en/products/gefa-processtechnik/valve-technology/knife-gate-valves/at500-at510f-detail

Technical data

Knife gate valve for pharmaceutical and chemical industries. Lug and wafer type knife gate valve for installation between flanges acc. to EN 1092-1/PN 10. Also suitable for dead-end service in vertical pipelines and below silos. Two-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 falling or standing product column.

Sizes According to customer request
Flange DIN EN 1092-1 PN 10
Face-to-face dimension Manufacturer standard
Body 1.4408, completely high-gloss polished on the inside
Coating EKB, both inside and outside
Colour RAL 9005, electrically conductive
Plate 1.4401 high-gloss polished
Sealings MVQ (FDA-confirm)
Package LATTYflon 3206SO with quad ring MVQ (FDA-confirm)
Certifications CE-Marking, FDA approval, ATEX

Applications and Industries
Chemical industry
Pharmaceutical industry
Food industry
Solids (powder)

https://www.gefa.com/en/products/gefa-processtechnik/valve-technology/knife-gate-valves/at550f-detail

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.

Nominal 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

https://www.gefa.com/produkte/gefa-processtechnik/armaturentechnik/kugelhaehne/feststoffkugelhaene/fk-detail