Turnex

Turnex

Ever since its introduction back in the 1980s, NAF Turnex has proven its unique features and maintenance-free operation. The robust linkage system with bushing provides an optimum torque curve for quarter turn valves and eliminates play. This makes it ideal for rotary control applications. NAF Turnex is an integrated part in the NAF control valve package with a unique direct mounting concept. The actuator is also used for on/off service and has adjustable end-stops in both directions. Ever since we developed this state-of-the-art actuator the spare parts have been the same. This, combined with a unique system of sleeves, for different stem diameters, minimizes the number of spare parts.

Brand: NAF
Category: Scotch Yoke
Type Scotch Yoke (Special Linkage Design)
Action Rotary
Fluid Power Pneumatic
Sizes 02, 12, 22, 32, 42, 52
Maximum Output 20 000 Nm (14 500 ft-lb) at 72.5 psig
Pressure Rating 116 psig
Fail Safe Operation Last, Closed, Open
Enclosure Aluminum
Seals NBR Buna, PTFE, Nitrile
Temperature Range -40°C to 80°C (-40°F to 176°F) Seal Dependent
Manual Override Declutchable with Handwheel
Options Low-Temperature Seals

Flowserve NAF Turnex is an integrated part in the NAF control valve package with a unique direct mounting concept eliminating the need for any brackets or couplings

The robust linkage system provides an optimum torque curve for quarter turn valves and eliminates play

Integrated air channels eliminate the risk of breaking external tubing

Excellent sensitivity to provide quick, accurate movements for precise control and increased process efficiency

Can be equipped with the M-lock safety locking device for simplified safety lock out and minimized risk of accidents

Piston rod mounted in PTFE bearings for smooth operation

Flexible system of sleeves for different stem diameters