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| Dwyer Instruments, Inc. | Michigan City, IN | |
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.jpg) | LIN-E-AIRE™ Pneumatic Valve Actuators Lin-E-Aire® Valve Actuators offer the ultimate in precision diaphragm motor control. These actuators are available in either air-to-lower or air-to-raise types. Both types feature easily accessible spring compression nuts permitting easy range change and adjustment. These actuators employ molded Buna-N rubber diaphragms reinforced with nylon, for resilient, easy valve action. No more than 10% of the diaphragm area is lost during a full stroke of the actuator, thereby imparting a practically constant force throughout the length of the stroke.   | ||||||||
.jpg) | Series EVA Electric Actuators Easily Installs Onto a Series GV Valve The Series EVA Electric Actuators are designed to mount directly onto the Series GV globe valves, creating a complete, low cost, and compact control valve package. Floating or modulating control inputs are available, and the 24 VAC synchronic motor includes a magnetic clutch to protect the motor in stall conditions. Actuators are ruggedly constructed with a fire-proof ABS housing and robust aluminum bracket. Features include a visual position indicator and manual override to make this actuator an excellent choice for any size area, large or small. | ||||||||
.jpg) | Series CVA Compact Valves and Actuators Pneumatic Actuated, Direct Acting or Spring Return Series CVA actuated valves combine a pneumatic actuator and a fast on-off control valve into one body, eliminating packing glands, actuators, and mounting kits. There are no exposed moving parts, eliminating pinch points and increasing operator safety. Because the actuator is part of the valve, costs are greatly reduced when compared to standard actuated valves. Balanced design reduces friction and wear, allowing the operating life to be tested to well over 1,000,000 cycles. The stroke is linear and parallel to the flow, dramatically reducing the required force to close or open the valve. The internal waterway design allows for optimum flow characteristics. The pneumatic actuated valve can be double acting, spring return normally closed or normally open. The double acting model uses two supply ports (1/8½ NPT) with one driving the valve open and the other driving the valve closed. Normally closed spring return pneumatic actuated models use the air supply to open the valve and internally loaded springs return the valve to the closed position. The normally open spring return model uses the air supply to close the valve and internally loaded springs return the valve to the open position. | ||||||||
.jpg) | Series DDA & DDC Non-Spring Return Direct Coupled Actuators Low Cost, Two-Position or Modulating DDA and DDC Series Direct Coupled Actuators are non-spring return actuators that are perfect for positioning of dampers and valves in HVAC systems. DDA actuators are designed to accept floating control signals and come in a variety of power supplies. DDC actuators are designed to accept 4 to 20 mA or 0 to 10 VDC modulating control signals and are 24 VAC powered. DDC units feature a 0 to 10 VDC feedback signal of damper position. Actuators produce 17 to 70 in-lb (2 to 8 Nm) of torque. Contact factory for optional internal auxiliary switch on DDA. | ||||||||
.jpg) | Series DDB & DDD Non-Spring Return Direct Coupled Actuators Low Cost, Two-Position or Modulating DDB and DDD Series Direct Coupled Actuators are non-spring return actuators that are perfect for positioning of dampers and valves in HVAC systems. DDB actuators are designed to accept floating control signals and come in a variety of power supplies. DDD actuators are designed to accept 4 to 20 mA or 0 to 10 VDC modulating control signals and are 24 VAC powered. Actuators produce 88 to 265 in-lb (10 to 30 Nm) of torque. Contact factory for optional internal auxiliary switches on DDB. | ||||||||
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