anti-water hammer solenoid valve FLOW RATE|
The flow factor Kv of each valve is indicated, so that the flow Q can be calculated as a function of the pressure drop Dp (see chart or formula). The Kv represents the flow of water, expressed in m3/h, at a temperature between 5°C and 30°C, that passes through the solenoid valve with a pressure drop of 1 bar (Standard VDI/VDE2173).
anti-water hammer solenoid valve RESPONSE TIME
The time requested to pass from fully open to fully closed or vice-versa is a function of the size of the orifice, the operating system, the voltage value, the type of medium, the relative pressure and temperature and the pressure drop (Dp).Depending on the diameter of the orifice, the response time is about few tens of milliseconds for direct acting valves and hundreds or thousands of milliseconds for pilot-operated or forced lifting (zero pressure) valves.
anti-water hammer solenoid valve USEFUL LIFE
The useful life of the solenoid valve is influenced by the pressure, temperature, type of medium and the voltage.Generally speaking, these solenoid valves are reliable for more than 2 million cycles and, in clearly defined cases and with special treatments, for a much larger number of operations.
anti-water hammer solenoid valve OPTIONS
On request, anti-water hammer solenoid valve can be supplied for special applications to different designs and with different materials or performances.On request and subject to minimum quantities, the following can be supplied:different seals, nickel-plated (Ni-P) brass bodies or PTFE (polytetrafluorethylene) coated bodies and general features complying with BGA-FDA-NSF standards, other types of connections (NPT, male etc.), coils with flying leads.Also available with domestic approval (IMQ) and international approvals (UL, VDE, WRC etc.).
HOW TO ORDER anti-water hammer solenoid valve
Always use the complete code, followed by the port size (G) and the orifice diameter in mm. Specify the voltage and relative frequency for AC (e.g.L177B04-Z610A1/8”x1,6V220/50-60Hz).
These solenoid valves are suitable for non-aggressive
liquid and gaseous media that are compatible with the construction
materials used in the valves.Maximum admissible viscosity:5°E (37
cStokes or mm2/s).Minimum ambient temperature:–10°C;maximum
ambient temperature:60°C with class “A”or “F”coils, 80°C with class “H”
coils.The minimum and maximum temperatures of the medium are shown in
the table, according to the type of valve concerned. N.B.: at very low
ambient temperature, the medium can solidify and damage the solenoid