VG4400-VA7010 Series fan coil electric valve: Introduction Overview: VG4400 electric valve technology parameters: VA-7010 Drive Specifications: Product VG4400 Series Valve Model VA-7010 Model VG4400 action on / off valve PN16 motor rating categories tape synchronous motors Body size DN15 DN20 DN25 retractable power 7VA flow characteristics with VA7010 drive stroke 3MM (5MM MAX) 0.12INCH linear or 100% whole trip with VA7040 drive time "on" for about 8-10 seconds, two normally closed valve full Travel time "off" for about 4-5 seconds stroke 3MM IP40 enclosure protection is applied to HVAC systems in the medium of water and glycol ambient temperature protection + 2- + 60 ℃ Storage -20- + 60 ℃ VG4400 Series high-performance / high-Off Built off the power valve spring return device can mediate water flow according to the requirements of the controller. Suitable for fan coil units, ventilation, variable air volume and heating systems. Usually equipped VA7010 Series switch drive use, this drive offers the smallest force 90N shut tight, and it is small, and with a spring return. CG4400 Series Switching electric two-way valve by VA-7010 series valve drive and VG400 series of copper valves. Cold or hot water is used to control the air conditioning system is turned on or off the pipeline, to achieve the purpose of the control room. Drive hysteresis synchronous motor is driven by a one-way valve spring return. When the valve is not working in a normally closed state, when the need to work to provide an open signal from the thermostat, the electric valve connected to AC power and action, open the valve, chilled water or hot water into the fan coil, for room air conditioners or heating; when the temperature reaches the thermostat set point, the thermostat so that the electric valve power, the return spring to the valve closed, thus cutting off the flow of water into the fan coil. Through the valve is closed or open, so room temperature is always maintained at a temperature range of the thermostat setting. Features: 1. High off force can effectively ensure the valve is closed tightly. 2. Synthetic rubber mat, no bubbles when closed. 3. 4. Built replacement parts can easily return spring. 5 can be adjusted to control the form. 6 manual lever. 7. rotatable drive after installation. 8. prolong life, small size. 9 to maximize energy savings and quiet operation. 10 can be used with line pipe location, simple wiring. VG4400-VA7010 Material: Forged Brass Body Material Seal Material Nitrile rubber (NBR) drives retardant ABS plastic cover medium temperature <95 ℃ stem material stainless steel (A1S1302) die-cast aluminum chassis drive working medium brass water valve Body main parameters: Model valve connecting thread form closed flow coefficient Kv pressure (MPa) working fluid medium temperature Ambient temperature Storage temperature pressure (MPa) VA7010-15 normally closed two-way valve G1 / 2 1.5 0.25 frozen / hot water 2 -94 ℃ 0-60 ℃ Maximum relative humidity without condensation -20-65 ℃ maximum relative humidity non-condensing 1.6 VA7010-15 mixing three-way valve G1 / 2 1.5 0.25 VA7010-20 normally closed two-way valve G3 / 4 2.5 0.1 VA7010-20 mixing tee valve G3 / 4 2.5 0.1 VA7010-25 normally closed two-way valve G1 4.8 0.06 VA7010-25 mixing three-way valve G1 4.8 0.06 handling precautions and installation instructions: motor casing to prevent dripping water infiltration. When the valve is installed in the horizontal pipe, the mounting position and the angle between the vertical plane is not more than 85 ° when the valve is mounted in a vertical pipe, the motor housing must be prevented from dripping infiltration. Normally closed two-way valve and three-way valve for mixing high-rise buildings should be used on the bottom of the manifold valve. When installing the valve, the valve should pay attention to the arrows pointing.