Tork-Mate Pneumatic Actuator - Series 890
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Heavy DutyRack and Pinion Extended Life . . . Up to 15 Million Cycles >

1.Piston Aluminum alloy,designed for the most demanding applications. 2 3 8 > 2.Piston bearing 9 > Low friction wearband centers the piston for extended life. 6 12 5 > 3.Piston Seal A double acting,PTFE, O-ring ener- gized seal minimizes friction and requires an extremely low breakaway force. Provides a much longer life than conventional O-rings. 10 1 > 4.Pinion High strength steel,plated for corrosion resistance. Precisely ma- chined gear minimizes wear and backlash. 13 4 7 > 5.Piston Rack Precision engineered toothprofile and wide engage- ment with pinion minimizes wear and maximizes...

The Tork-Mate > 890 series extended life actuatorsare ideal for the operation of 90ΰ turn devicessuch as butterfly valves, ball valves, plug valves, damper valves and other devices. Tork-Matepneumatic actuators have features that areunique, providing many benefits to the userlooking for worry-free service. > The Tork-Mate 890 series actuators feature piniontravel stops that allow a full +/-10 of valvetravel adjustment. As an option, extended stroke adjustment screws can be added for inexpensivethrottling applications. > Special piston seals provide greatly extendedlife compared to standard...

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All specifications subject to change without notice.Posi-flate ծ and Tork-Mate are registered trademarks of Posi-flate, St. Paul, Minnesota. Milton Keynes, England Bulletin 20316 (10/03/03) 14 Carters Lane, Kiln Farm, Milton Keynes MK11 3ER, EnglandPhone: +44-1908-564455For the latest product and contactinformation, visit our website: > Ω 2003 Posi-flate Corporate Headquarters 1125 Willow Lake Boulevard St. Paul, MN 55110 U.S.A.Phone: +1 651 484-5800 Additional Posi-flate locations: Sao Paulo, BrazilBeijing, China Auckland, New Zealand >