Valve Technology Catalogue

»GEFA Processtechnik – The name that stands for quality & innovation.«

Our product ranges ■ Valves & Controls • Shut-off and Control valves • Ball valves • Knife Gates valves • Non Return valves • Actuators • Speciality valves ■ Measurement and Control Technology • Flow rate measurements • Signal processing modules • Custom control cabinets and panels

Centrally mounted Solid one-piece valve disc and stem Extremely easy to service: Quick seat ring changeout possible with two-piece body Body completely elastomer-lined with seat ring as multifunctional sealing element Operational for almost all media from acid application to sensitive food or pharmaceuticals Control and regulation of process sequences without hysteresis Process valve Type KG 9 [ DN 50 - DN 300 ] Technical Data: Wafer type butterfly valve for installation between flanges DIN EN 1092-1, PN 10/16, ANSI 150, Two-piece body, self-centring, One-piece valve disc & stem, leakproof to...

Safe and secure automation with the interchangeable top flange Two-piece body Standard construction length; easy to service, simple replacement of the internal parts to the two-piece body construction Bearing bushing with O-ring seal Primary seal Integrated in the seat ring, causes space-free and pressure-stable sealing to the outside, additional labyrinth design Seat ring Multifunctional sealing element, single-piece replacement, maintenance-free, long life-span, reliable seal in seat, to the flanges and at the shaft gland; secure latching in the dove tail, Embedded in the housing with no edges...

Soft-seated Butterfly valve Series K Type K 19 [ DN 350 - DN 500 ] Technical Data: Wafer type butterfly valve for installation between flanges DIN EN 1092-1, PN 10/16, ANSI 150, Two-piece body, self-centring, One-piece valve disc and stem, leak-proof to 16 bar, vacuum-tight. Face to face dimensions: DIN EN 558-1 series 20 (DIN 3202-K1) Top flange: ISO 5211 Test: : EN12266-1, P10/P11/P12-A DIN 3230, T3 - BA/BO-1, DIN 3230, T5, T6 Type K 17 [ DN 350 - DN 500 ] Technical Data: Lug type butterfly valve for installation between flanges DIN EN 1092-1, PN 10, ANSI 150. Two-piece body with threaded cam...

Technical Data Control range: 20° - 60° Opening angle Seat ring replacement After loosening the two body bolts, only the lower part of the body is pulled out along with the inner parts. The actuator remains mounted to the top of the body! Temperature °C As of DN 200, at a differential pressure above 13 bar, seat rings with an increased shore hardness are required. Vacuum tight to 1 x 10-2 mbar KG7 / K17 / K14: In single-side flange status max. differential pressure 10 bar KG2 / KG4: max. differential pressure 10 bar K08 / K07: max. differential pressure 10 bar K08 / K07: Seat ring material EPDM...

Type KG 2 • KG 4 The Types Type KG 2 [ DN 50 - DN 500 ] Wafer type butterfly valve for installation between flanges DIN EN 1092-1, PN 10/16, ANSI 150. ^Advantages Centre-mounted process valve for safe and secure industrial usage Economic initial equipment with single-piece housing construction Body complete Elastomer-lined with seat ring as multifunctional sealing element Option: Version DIN DIN with certification Type KG 4 [ DN 50 - DN 500 ] Lug type butterfly valve for installation between flanges DIN EN 1092-1, PN 10/16, ANSI 150. Technical Data: Single-piece body, self-centring Face to face...

Safe and secure automation with the interchangeable top flange Additional O-ring seal Seals the stem coupling from outside Two-piece, blow-out proof stem ensures a stable mount for the valve disc Primary seal integrated in the seat, ensures a pressure-stable seal to the outside, additional labyrinth design, seals on the stem Body single-piece with locating holes or threaded cam as lug type version Valve disc with full high finish Seat ring exchangeable multifunctional sealing element, maintenance-free, long life-span, reliable seal in seat, to the flanges and on the stem coupling, secure latching...

• Centrally mounted valve disc \ with solid, zero play \ disc/stem connection • Body fully PTFE-lined (min. 3 mm) Permanent seal with full chemical resistance Very aggressive and corrosive media are transferred safely • Option: Pharmacentical version / cavity free with glazed PTFE face towards flange Type KG 6 [ DN 50 - DN 300 ] Technical Data: Wafer type butterfly valve for installation between flanges DIN EN 1092-1, PN 10/16, ANSI 150. Two-piece body, self-centring, single-piece valve disc and stem, sealed to 10 bar. Face to face dimensions: DIN EN 558-1 series 20 (DIN 3202-K1) Top flange:...

Safe and secure automation with the interchangeable top flange Automation • Standard mounting flange conforming to DIN 3337 • Direct-mount actuation without interruption to the valve stem • Variable and exchangeable for any size of actuator • Actuator protected against leakage Two-piece body Standard construction length; very easy to service, simple replacement of the internal parts only possible with the two-piece body construction Technical specifications PTFE seat ring in solid construction (3 mm), diffusion-stable, guarantees permanent seal on stem coupling, on closing/sealing and to the...

Technical Data: Wafer type butterfly valve for installation between flanges DIN EN 1092-1, PN 10/16, ANSI 150. Two-piece body, self-centring, single-piece valve disc and stem, sealed to 10 bar. Face to face dimensions: DIN EN 558-1 series 20 (DIN 3202-K1) Top flange: ISO 5211 Test: EN12266-1, P10/P11/P12-A DIN 3230, T3 - BA/BO-1 DIN 3230, T5, T6 Technical Data: Lug type butterfly valve for installation between flanges DIN EN 1092-1, PN 10, ANSI 150. Two-piece body with threaded cam for a fixed flange connection from both sides. Single-piece valve disc and stem. Special features: The pipeline...

Technical Data Pressure/Temperature Diagram CC n e D CO CO £ Q. 3 -I—' c <1> it Control range: 20° - 60° Opening angle PTFE material (Fluorine plastic) provides the user with a material that can rarely be matched with another material in terms of its corrosion and chemical resistance. For lining or coating parts in contact with the medium - as with GEFA-Buttefly Valves KG 6 / KG 8 - this material has become almost indispensable. PTFE (polytetrafluorethylene) with EPDM elastomer Temperature: -30 °C to +130 °C. with silicone elastomer Temperature: to +160 °C. PTFE / Carbon (Reinforced polytetrafluorethylene...