DurMAX™ Cylinder Deactivators
Reduce engine load
CECO DurMAX™ deactivators can be supplied as a complete unit – ready to install on your compressor. By supervising the installation and training your station personnel, CECO assures the successful commissioning and operation of these custom-designed deactivators.

CECO DurMAX™ deactivators are fail-safe plug type with a balanced piston and open on loss of air pressure. We use two cast-iron rings on the plunger guide allowing the self-aligning plunger to seal properly. The plunger and guide are heat-treated 4140 steel and are hardened to provide long, trouble-free operation.

Call 800-879-2326 or e-mail for more information
Features Benefits
Plug-type design Avoids inherent operational problems and breakage of the finger-type deactivators.
Removable packing gland Seals can be replaced without disturbing plunger.
Working cylinder and plunger guide are integral Smooth operation.
Balanced piston design Avoids chatter. Minimizes pressure required to operate.
API construction Double-seals and vents preveningt mingling of air from operating cylinder and gas from compressor cylinder.
Upper cylinder parts interchangeable with clearance pocket actuator parts Readily available spare parts.
Fail-safe design Opens on loss of air pressure.

DurMAX™ deactivators conform to API specs and require only one air supply line. The covered sight glass gives a visual indication of closed or open position.

The operating shaft is a high-strength alloy steel and noncorrosive. The operating cylinder has a noncorrosive wear surface for long service life.

In addition, our deactivators unload one end of a compressor cylinder, enabling you to avoid overloading the driver. Deactivators assist in maintaining 100% engine load for optimum fuel efficiency.