欧美无毛视频,欧美视频精品全部免费观看,一区三区在线欧 ,在线精品高清中文字幕

VA-7010 Electric Two-way Valve Overview
VA-7010 Electric Two-way Valve produced and sold by Baigang valve group for fan coil water on-off control. Body forged brass, the drive using hysteresis synchronous motor as the driving force. Power open the valve, reset by the spring after the power is off (that is, the body off after power off), and with a manual valve operating mechanism is the central air conditioning system is one of the most widely used electric valve.

VA-7010 Electric Two-way Valve technical indicators
◆ Drive motor: hysteresis synchronous motor 
◆ Drive voltage: 220VAC, 50Hz / 60Hz (with AC24V, 110V to choose from) 
◆ Power consumption: ≤ 7.5VA 
◆ Body pressure: 1.6MPa 
◆ Allow Pressure difference: ≤0.13MPa 
◆ Suitable medium: cold water, hot water 
◆ Applicable medium temperature: 2 ℃ -95 ℃ 
◆ Applicable ambient temperature: 0 ℃ -60 ℃ 
◆ Opening and closing time: about 10 seconds, about 5 seconds off 
◆ Valve Body connection: ZG pipe thread (can also be customized according to user needs) 
◆ travel (theoretical): 4.0mm

VA-7010 Electric Two-way Valve The main material
◆ Body: brass (forging) 
◆ Stem: 304 stainless steel 
◆ Sealing material: special rubber 
◆ Drive Chassis: Die Cast Aluminum 
◆ Drive Cover: Flame Retardant ABS Engineering Plastics

VA-7010 Electric Two-way Valve installation and commissioning
◆ Before installation must read the instructions, cut off the power and must be installed by professionals. 
◆ The flow direction must be the same as the direction of the arrow on the valve body. 
◆ The valve body must be above the fan water tray to ensure that dripping water will fall into the water receiving tray. 
◆ The valve body and driver must be installed within ± 60 ° in the vertical direction. At least 30mm above the space should be used for disassembly and assembly. The surrounding piping, equipment and buildings must maintain sufficient space for maintenance and repair, and must be installed in the maintenance personnel Through the access hole can reach places. 
◆ two and more than two electric valve can not be parallel, if you really need to use relays parallel isolation. 
◆ After installing the valve body and passing the pressure test to the pipeline, install the drive. 
◆ If the driver has been installed on the valve body, the driver must not be used during installation and commissioning as this may damage the driver. 
◆ The drive can not be wrapped with insulation material, otherwise it will affect its heat dissipation. 
◆ The driver must be reliably grounded through a wire of not less than 1.5mm2. The other wires should comply with the relevant standards of the electrician. 
◆ Installation is complete and check the correct, water-free power debugging. At least observe the three full drive cycles and make sure all components are correct and correct. 
◆ after passing through the anhydrous test, and then through the water debugging. System pressure on the water must be strictly controlled within 0.13MPa, in order to ensure the effectiveness of the electric valve on the water flow switch.

VA-7010 Electric Two-way Valve model comparison table