Supply electric actuator DZW90-24W drive unit specifications and maintenance
Product Features
Product advantage
I: Overview
The DZW series electric actuators for valves are a new generation of products that our company has developed and improved upon our mature products, optimizing protection performance and key components. They are entirely self-developed, featuring a compact structure, small size, attractive appearance, and stable and reliable performance. The good protection grade meets various design requirements: explosion-proof, overall switch type, and overall regulating type.
The DZW series is designed for controlling the opening and closing of valves. Suitable for gate valves, stop valves, check valves, diaphragm valves, and its derivative products can be used for ball valves, butterfly valves, and dampers, etc. It operates accurately according to control commands, making it an indispensable driving device for remote control, centralized control, and automatic control of valves.
This product meets the specifications of JB/T8528-1997 (Technical Conditions for Electric Actuators of General Valves) and the performance of explosion-proof type conforms to GB3836.1-2000 (Part 1 of Electrical Equipment for Explosive Gas Environment: General Requirements), GB3836.2-2000 (Part 2 of Electrical Equipment for Explosive Gas Environment: Explosion-proof Type "d"), and JB/T8529-1997 (Technical Conditions for Explosion-proof Electric Actuators).
Two: Technical Conditions
Z: Integrated Type T: Adjustable Type N: Smart Type
Protection Type: W = Outdoor Type, B = Explosion-Proof Type
Output Speed: Numerical, unit r/min (revolutions per minute)
Connection Type: T for Thrust Type, I for Power Station Type, Standard Type without Code; Rated Torque: Number indicates, unit kgf.m
Product Form: Multi-revolution electric device
1: Power Supply: Motor is 3-phase AC 380V, 50Hz. Control is 2-phase AC 220V, 50Hz.
Optional Power Supply: AC 220~660V, 50/60Hz (to be specified at order time) 2: Environmental Temperature; -20℃ to +60℃; Optional Temperature -40℃ to +70℃
3: Relative humidity; not greater than 95% (at 25°C)
4: Working Environment; General type for places without flammable, explosive, and highly corrosive media; Explosion-proof type (ExdIIBT4) for environments of II A, II B groups T1-T4 explosive gases
5: Protection Level; IP65/67 (Special Order IP68)
6: Motor operates in continuous duty cycle; rated operating time is 10 minutes. F-class insulation.
7: Corrosion-Resistant Coating: High-Temperature Painting
Product Featuresfeatures
Three: Adjust
Adjust the torque while traveling. It is essential to check if the potentiometer on the position indicator has been disengaged (simply loosen the set screw on the gear of the potentiometer shaft) to prevent damage.
Torque control mechanism adjustment:
Firstly, adjust the torque.
(2) Start with a low torque value and gradually increase it until the valve is fully closed.
(3) Adjust the torque for switch direction based on the valve's operational characteristics; typically, the torque for the open direction is greater than the torque for the close direction.
(4) Adjustments are made under conditions of no load and without medium pressure, etc. When there is pressure and temperature, attention should be given to whether it can be tightly closed. If it cannot be closed tightly, the torque value should be appropriately increased to ensure it can be tightly closed and easily opened.
2. Travel Control Mechanism Adjustment
(1) Manually close the valve tightly.
(2) Disengage the travel control mechanism by using a screwdriver to push the plunger in the travel control mechanism and rotate it 90°, thus separating the driven pinion from the counter's unit gear set.
(3) Rotate the "OFF" adjustment shaft with a screwdriver in the direction of the arrow until the cam engages the spring plate, causing the microswitch to activate. This indicates the initial adjustment of the "OFF" travel is complete.
（4）
At this point, you can electrically turn it a few rotations, then close it. Check if the closing stroke meets the requirements. If not, adjust it again following the above procedure.
(5) Direction Adjustment: After the closed direction is adjusted, manually open the valve to the desired position. Then disengage the stroke control mechanism, rotate the "open" adjustment shaft in the direction of the arrow until the cam presses against the spring plate, causing the micro-switch to activate. Reengage the stroke mechanism with the driving gear, and the open direction stroke is complete. After adjusting the stroke control mechanism, the operation can be repeated several times. Generally, the valve opening is controlled around 90%.
3. Adjustment of the adjustable opening indicator:
Adjust the adjustable opening indicator and remote potentiometer after adjusting the torque and stroke.
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Yangzhou Su Valve Control Equipment Co., Ltd. is located in the historic and cultural city of Yangzhou, China, and is a professional manufacturer specializing in the research, development, and market sales of electric valve actuators. The company has established a reliable quality assurance system, with product quality standards strictly implemented. Our product range of electric valve actuators is comprehensive, widely used in power, metallurgy, petrochemical, papermaking, and water supply and drainage industries, and highly praised by customers. For many years, Yangzhou Su Valve Control Equipment Co., Ltd. has adhered to the business philosophy of "Quality, Integrity, and Customer First," gaining recognition from users across various industries, building the company's brand image, and creating fine products in the electric valve industry. Our products are based in China and face the world, serving more than 30 provinces, municipalities, and autonomous regions across the country. The company offers comprehensive customer service...
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About Shipment
Subject to customer's requirements
About Returns and Exchanges
If there are any disputes upon receiving the product, please contact us promptly for negotiation and resolution.
Subject to customer's requirements
