EV220B DANFOSS PDF

Product name: Solenoid valve, Type: EVB, Function: NC, Connection size [in]: 1 1/4, Connection type: G, Connection Internal/External: Internal, Cv value. Solenoid valves, type EVB Data sheet. Brass valve body, NC. Connec- tion. ISO /1. Seal material. Orifice size kv- value. [m³/h]. Differential pressure. Product name: Solenoid valve, Type: EVB, Function: NC, Connection size [in]: 1, Connection type: G, Connection Internal/External: Internal, Cv value.

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Valve body in brass, dezincification resistant brass and stainless steel ensures that a broad variety of application can be covered. Basic valve and coil theory eLesson: Material, media and market failures eLesson: High capacity in the entire pressure range At low differential pressures an additional closing force is needed to get a proper tightness.

Learn more about our valve range in the Danfoss Learning eLessons eLesson: Accessories such as isolating diaphragm unit, NO-unit, manual-operating unit and adjustable equalising orifice are easily fitted on the valve, and the usual wide coil range can be used.

For water, steam, oil, compressed air and gases Flow range for water: Wide coil range up to IP Direct operated solenoid valves eLesson: Water-hammer damped design and built-in pilot filter ensures a reliable operation.

The tool is intended to make it dahfoss for installers and end-users to specify the correct industrial solenoid valves for a range of standard applications.

EVB solenoid valves | Servo-operated valves | Danfoss

danfpss Danfoss EVB water hammer damped solenoid valve In general it is the closing speed of the valve that determines the water hammer phenomenon. EVB, servo-operated solenoid valves.

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This program is especially for OEM applications demanding a robust solution and moderate flow rates. For water, oil, compressed air and similar neutral media Flow range from 0. Find the right valves The tool is intended to make it easy for installers and end-users to specify the correct industrial solenoid valves for a range of standard applications. Also the use of a special design of the diaphragm to increase its lift height increases the capacity.

In addition the closing speed can be adjusted by changing the equalising orifice. They are available normally closed or normally open. On the EVB there are no compromises on the capacity of the valve. This results in a very good external tightness. The seal material determines the minimum temperature.

Danfoss EVB Solenoid Valves

Why not open an account? This makes it possible to use the EVB for’ several brines. This makes it possible to choose the optimal coils no matter if the ‘solution be technical or economical.

The program comes complete with the clip-on coil and IP65 dsnfoss plug and has been carefully designed to simplify product selection. Spare parts kits for EVB. Danffoss avoid leakage because of the gap the moulded diaphragm has a built-in a-Ring giving an excellent sealing between valve cover and valve body even at high pressures.

It makes it possible to dsnfoss the standard brass version for common applications with limited risk of corrosion, and as trouble-shooter the EV B SS version with FKM and optionally with an isolating diaphragm.

Up to IP67 Flange connections: Up to 10 bar Viscosity: On the Danfoss EVB valve it is done by having an optimized shape of the moulded diaphragm, a reinforcement giving an internal damping and a special damping cone ev22b a viscous damping in the very late closing stage. By controlling the closing speed at this stage the water hammer can be reduced. If this spring is very soft only a low differential pressure is needed to lift the diaphragm resulting in a high opening degree.

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This means you don’t need an assisted lift solenoid valve as in most of the cases. For water and similar neutral media Flow range for water: In reality the water hammer comes just before the valves closes.

EV220B, servo-operated solenoid valves

This is done by the closing spring. Due to the increased thickness on the sealing point of the diaphragm of the EVB valve only a very low closing force is needed from the spring. High Pressure Water Pumps.

Good external tightness even at high differential pressures The pressure in the valve tries to increase the gap between valve cover and valve body. The valve is designed with cast iron valve body and flanged connection.

Broad range of different body and sealing materials The EVB range is available in three different body materials and with three different seal materials. This is possible because of the high quality EPDM type and the special design of the reinforced diaphragm reducing the internal stress level.

Direct and indirect servo operated valves eLesson: Go to the valve selector. Insensitive to dirt The flow through the dirt sensitive pilot system is filtered on the EVB.

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