NEMA 4X Multi Turn Actuator For PVC Diaphragm Valve

Heavy Duty Rate Multi Turn Actuator for PVC diaphragm valve/shut-off valve/needle valve

DCL-MZZ dimension and parameters.pdf

Features

• Turns and torque can be set to match with different size of diaphragm valve
• Heavy duty DC brushless motor provides large torque and high speed with small inertia force
• High pressure die cast aluminum alloy housing with external power coated
• IP 67/NEMA 4X sealing grade/weather proof for indoor and outdoor use
• Smart mini control board inside to provide over current protection
• Permanent lubricated gear drive without maintenance
• Double direction over torque protection

Description

DCL-MZZ multi-turn electric actuator uses over torque protection type to close valve to make sure valve is fully sealed. Since diaphragm valve and small globe valve linear move by rotate drive, and these valves commonly need to be sealed by an over normal torque which is like screwing cap to a bottle.

So for closing direction, an large over torque protection is set, to make sure valve is totally sealed. While, we can see that if the torque of the closing direction and the opening direction is the same, then valve can not be opened, which is also same as that when unscrewing the cap from a bottle, we need even larger torque than screw it. So the opening direction over torque protection is 1 second later than motor starts moving to avoid motor stuck on the fully close position.

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