Zhejiang Jufeng Fan Ventilation Equipment Co., Ltd.

< . Series explosion-proof exhaust fans | The explosion-proof performance of the exhaust fan is made into explosion-proof type according to the provisions of B. "General Requirements for Explosion-proof Electrical Equipment for Explosive Environments" B. "Explosion-proof Electrical Equipment for Explosive Environments". The explosion-proof mark is IIB, which is suitable for Class II, Class B, Temperature Group, and explosive environments formed by flammable gases and air. This product has the advantages of reliable explosion-proof performance, large air volume, low noise, and low power consumption. It has passed the safety inspection by the national statutory explosion-proof inspection unit and obtained the "Explosion-proof Certificate" explosion-proof certificate number:.
Model meaning of rrr fan
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Main technical parameters of rrr fan
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Installation and use
◆First check the frame, wind Whether the blades are deformed, whether the fan blades rotate flexibly, and whether there is any friction. Check whether all solid parts are complete and tightened, and there should be an explosion-proof certificate number.
◆The line voltage must match the rated voltage on the motor.
◆ Use a megohmmeter to check the insulation resistance of the motor. If the resistance value is less than 1, apply the drying method or short-circuit current method to dry it to make the insulation resistance greater than 1.
◆A small explosion-proof switch must be used as the power switch, or an ordinary switch must be installed in a non-explosive place outdoors.
◆The outer diameter of the cable connected to the power supply should match the sealing ring. After tightening and compressing the nut, ensure that there is no gap between the sealing ring and the cable, and between the sealing ring and the outlet nozzle, otherwise the explosion-proof performance will be reduced.
◆Make sure the explosion-proof gap is less than .
◆The non-wiring parts of the explosion-proof motor cannot be disassembled at will. When wiring, open the cover of the wiring room, insert the lead wires and connect them to the terminals. After connecting, cover the cover and tighten the screws to make the gap between the explosion-proof surface less than . Then tighten the outlet device so that the lead wire cannot move. Note: When installing, pay attention to the explosion-proof surface. During assembly, the explosion-proof surface must be coated with anti-rust grease. All explosion-proof surfaces must not be damaged or corroded, otherwise the explosion-proof performance will be lost. If there is any damage or corrosion, it must be repaired in accordance with the "Regulations on the Treatment of Defects in Explosion-Proof Surfaces of Explosion-Proof Electrical Equipment".
◆When the exhaust fan is in use, dust and other accumulations on the motor should be cleaned regularly to avoid affecting heat dissipation.
◆When reusing an exhaust fan that has not been used for a long time, you should check it again according to the instructions and make sure it is suitable before use.
rrr appearance and installation dimensions
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Company introduction
Zhejiang Jufeng Ventilation Equipment Co., Ltd. was founded in 2001. The company takes market development and technology development as the forerunner and specializes in the production of instruments. Fans, axial flow fans, explosion-proof fans, fire smoke exhaust fans, centrifugal fans, roof fans and mixed flow fan cabinets and other fan products, and has production qualification certificates for various types of fans and coal mine products) and is one of the few in the country. The member units of the Fan Industry Association have passed: quality management system certification, and the products have been excellent in previous industry quality random inspections. The company also enjoys self-operated import and export rights.
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Ordering Instructions
When ordering, please specify the fan model, flow rate, pressure, speed, motor power and whether ship inspection is required.
If the product cannot be used within the year due to manufacturing quality and other reasons, our factory will guarantee repair, return and replacement.
(Note: If the fan needs brackets and motor voltage, please indicate it when ordering)
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