VG4400-VA7010 series fan coil electric valves: Introduction Overview: VG4400 electric valve technology parameters: VA-7010 Drive Specifications: Product VG4400 Series Valve Model VA-7010 model VG4400 operation of the open / close valve motor Class rating PN16 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% with the VA7040 drive full stroke time "on" for about 8-10 seconds, two-way normally closed valve body full Travel time "off" for about 4-5 seconds stroke 3MM Housing protection IP40 medium applied to HVAC systems in the water and glycol ambient temperature protection + 2- + 60 ℃ Storage -20- + 60 ℃ VG4400 series of high-performance / high-Off Built-off force spring return valve can mediate water flow according to the requirements of the controller. Suitable for fan coil units, ventilation, variable air volume and heating system. Usually equipped VA7010 series switch drive use, this driver provides the minimum force 90N shut tight, and it is small, and with a spring return. CG4400 Series Switching electric valves by the VA-7010 series valve actuator and VG400 series of copper valves. Open cold or hot water is used to control the air conditioning system pipe or closed to control room temperature of. Drive driven by a one-way hysteresis synchronous motors, valves spring return. When the valve does not work in a normally closed state, when the need to work, to provide an open signal from the thermostat, 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 setting, 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 closed or open, so room temperature is always maintained at the thermostat setting temperature range. Features: 1. High off force can effectively ensure the valve closes tightly. 2. Synthetic rubber pad, no bubbles when closed. 3. easy replacement of parts 4 built-in return spring. 5 adjustable control form. 6 manual lever. 7. The drive can be rotated 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: Body Material brass forging sealing material nitrile rubber (NBR) drive retardant ABS plastic cover medium temperature <95 ℃ Stem material stainless steel (A1S1302) drive chassis aluminum die-casting brass working medium water valve Body The main parameters: Model valve connecting thread form flow coefficient Kv close off pressure (MPa) Operating medium fluid 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 non-condensing -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 three-way 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 a horizontal pipe, the installation position of the angle between the vertical plane does not exceed 85 ° when the valve is mounted on a vertical pipe, the motor housing must be protected against dripping water infiltration. Normally closed two-way valve and three-way valve for mixing high-rise buildings should be used on the bottom of the valve in the manifold. When installing the valve, the valve should pay attention to the arrow pointing.