TTV S.A.
TTV Colossus - PTFE Double Eccentric Wafer Butterfly Valves
FromTTV S.A.
Materials: Body: WCB, CF-8M, CF-8, CF-3M. Disc: CF-8M, CF-8. Shaft: AISI 316, AISI 304, 17-4PH. Seat/ sealing: PTFE, PTFE+15% glass., PTFE+15% graphite. Retainer: AISI 316. Packing: Graphite, PTFE, PTFE+15% Graphite. Other materials available on request.
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Rating
- DN32mm (1 ¼”)- 600mm (24”)
- PN 10, 16, 150#

Design features
- Bi-directional sealing
- Permanent in time zero leakage for air
- Specially suitable for steam or oxygen
- Standard seat: PTFE with 25% of glass fibre, which provides the best balance of mechanical, electrical and chemical properties and a good wear and friction behavior. It resists acids and alkalis, except hydrofluoric acid and strong alkali. If it is required for special applications, there is a wide range of PTFE-based polymers, F-316, graphite and virgin PTFE
- PTFE + metal ring: Fire Safe
- Low operation torque
Wafer:
- One-piece body with four centering lugs which allows installation between flanges at intermediate points in the pipeline.
- Características del PTFE:
- Almost universal chemical inertness
- Complete insolubility in all solvents below 300°C
- Low coefficent of friction
- Excellent dielectric properties
- Excellent thermal stability
- Nontoxic
- Chemical and pretochemical industry
- Pharmaceutical industry
- Petroleum
