Supply ZA Series Electric Actuators - ZA900-7 Standard Switched Electric Actuator - ZA900-7T Adjusted Electric Actuator
Product Features
Product advantage
I. Overview
The DZW series electric actuators for valves are our company's new generation products, which are improved and optimized based on our mature products. They feature compact structure, small size, attractive appearance, and stable and reliable performance. With a good protection level, they can meet various design requirements: explosion-proof, full-on/full-off, and full-adjustment 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 used for 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 specifications of JB/T8528-1997 (Technical Conditions for Electric Actuators of General Valves) and the performance of explosion-proof types 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: Numeric representation, unit r/min (revolutions per minute)
Connection Type: T for Thrust Type, I for Power Station Type, Standard Type with no code; Rated Torque: Numbered, Unit kgf.m
Product Form: Multi-Rotation Electric Device
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℃
Relative humidity: Not more than 95% (at 25°C)
4: Working Environment; Standard type for areas without flammable, explosive, and highly corrosive media; Explosion-proof type (ExdIIBT4) for use in II A, II B groups of explosive gases, T1-T4 groups
5: Protection Grade; IP65/67 (Special Order IP68)
The motor operates in a duty cycle; rated running time is 10 minutes. F-grade insulation.
7: Corrosion-Resistant Coating: High-Temperature Bake Paint
Product Featuresfeatures
Three: Adjust
Adjust the torque while moving the stroke. Ensure the potentiometer on the position indicator is disengaged (loosen the set screw on the gear of the potentiometer shaft) to prevent damage.
Torque control mechanism adjustment:
Firstly, adjust the closing torque.
(2) Start from a low torque value and gradually increase it until the valve is fully closed.
(3) Adjust the torque for the switching direction based on the valve's operating characteristics; generally, the opening torque is greater than the closing torque.
(4) Adjustments above are made under conditions of no-load and no-medium pressure. When there is pressure and temperature, attention should be given to whether it can be tightly sealed. If it cannot be tightly sealed, the torque value should be appropriately increased to ensure it can be tightly sealed 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 driving pinion from the counter's unit gear set.
(3) Rotate the "OFF" position screwdriver towards the adjustment shaft, turning it in the direction of the arrow 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 turn it off. Check if the closing travel meets the requirements; if not, adjust it again following the above procedure.
(5) Direction Adjustment: After the valve is 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 activate. Reengage the stroke mechanism with the driving gear to complete the opening stroke adjustment. After adjusting the stroke control mechanism, repeat the operation a few times. Generally, control the valve opening to about 90%.
3. Adjustable opening indicator adjustment:
Adjust the adjustable opening indicator and remote potentiometer after aligning the gear and travel.
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Yangzhou Su Valves 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 valve electric actuators. The company has established a reliable quality assurance system, ensuring that product quality standards are fully implemented. Our product range of valve electric actuators is comprehensive and widely used in engineering projects across various industries such as electricity, metallurgy, petroleum, chemicals, paper, and water supply and drainage, earning high praise from customers. For many years, Yangzhou Su Valves Control Equipment Co., Ltd. has adhered to the business philosophy of "Quality, Integrity, and Customer First," gaining recognition from users across industries, establishing the company's brand image, and creating fine products in the electric valve industry. Our products are based in China and face the world, covering more than 30 provinces, municipalities, and autonomous regions across the country. The company offers comprehensive customer service...
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About Shipment
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About Returns and Exchanges
If there are any disputes upon receiving the product, please contact us promptly for negotiation and resolution.
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