Supply parameters and maintenance for electric actuator drive unit DZW500-24W
Product Features
Product advantage
I: Overview
The DZW series electric actuators for valves are a new generation of products, developed and improved upon our company's mature products. They feature a compact structure, small size, attractive appearance, and stable and reliable performance. With a good protection grade, they can meet the needs of various designs: explosion-proof, overall switch, and overall regulating types.
The DZW series is used for controlling the opening and closing of valves. Suitable for gate valves, stop valves, check valves, diaphragm valves, its derivative products can be applied to ball valves, butterfly valves, and dampers, etc. It can accurately actuate according to control commands, and is an indispensable driving device for remote control, centralized control, and automatic control of valves.
This product meets the requirements of JB/T8528-1997 (Technical Conditions for Electric Actuators for Valves of General Type) and the performance of explosion-proof type conforms to GB3836.1-2000 (Part 1 of Electrical Equipment for Explosive Gas Atmospheres: General Requirements), GB3836.2-2000 (Part 2 of Electrical Equipment for Explosive Gas Atmospheres: 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 for Outdoor, B for Explosion Proof
Output Speed: Numerical value, 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 unit
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 time of order); 2: Environmental Temperature; -20℃ to +60℃; Optional Temperature: -40℃ to +70℃
3: Relative humidity; not more than 95% (at 25°C)
4: Working Environment; Standard type for places without flammable, explosive, and highly corrosive media; Explosion-proof type (ExdIIBT4) used in environments of II A, II B groups T1-T4 explosive gases.
5: Protection Level; IP65/67 (Special Order IP68)
6: Motor for continuous duty; rated running time 10 minutes. F-grade insulation.
7: Corrosion-Resistant Coating: High-Temperature Painting
Product Featuresfeatures
Three: Adjust
Adjusting the torque, while in motion, ensure the potentiometer on the position indicator is disengaged (loosen the set screw on the gear of the potentiometer shaft to disengage) to prevent damage.
Torque control mechanism adjustment:
Firstly, adjust the torque.
(2) Begin with a low torque value and gradually increase it until the valve is fully closed.
(3) Adjust the torque for switching direction based on the valve's operational characteristics; typically, the opening torque is greater than the closing torque.
(4) The adjustments above are made under conditions of no load and medium-free pressure. When there is pressure and temperature, attention should be paid 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) Close the valve manually.
(2) Disengage the stroke control mechanism by using a screwdriver to push the top rod in the stroke control mechanism and rotate it 90°, thereby separating the driven small gear from the counter's unit gear set.
(3) Rotate the "OFF" position screwdriver clockwise towards the adjustment shaft, turning until the cam presses against the spring plate, causing the microswitch to activate. This indicates that the initial OFF travel has been properly adjusted.
（4）
At this point, you can electrically turn it a few rotations, then shut it off. Check if the closing stroke meets the requirements. If not, adjust it again following the aforementioned procedure.
(5) Valve Opening Adjustment: After the valve is properly adjusted in the closed direction, 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 actuate. Once the stroke mechanism engages with the driving gear, the opening stroke is complete. After adjusting the stroke control mechanism, it can be operated repeatedly. Generally, the valve opening is controlled at around 90%.
3. Adjustment of the adjustable opening indicator:
Adjust the adjustable opening indicator and remote potentiometer after adjusting the torque and travel.
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Corporate Strengthenterprise
Yangzhou SuFang Control Equipment Co., Ltd. is located in Yangzhou, a historically and culturally significant city in 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, ensuring that product quality standards are fully implemented. Our range of electric valve actuators is comprehensive and widely used in engineering projects across various industries such as power, metallurgy, petrochemicals, papermaking, and water supply and drainage, earning high praise from customers. For many years, Yangzhou SuFang Control Equipment Co., Ltd. has adhered to the business philosophy of "Quality, Integrity, and Customer First," gaining recognition from users in all industries, establishing the company's brand image, and creating top-quality products in the electric valve industry. Our products are based in China and extend to the global market, covering over thirty provinces, municipalities, and autonomous regions across the country. The company offers comprehensive customer service...
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Regarding 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
