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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Go to the valve selector. This makes it possible to choose the ev220n coils no matter if the ‘solution be technical or economical. 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.
Danfoss EVB ( series) Servo-operated 2/2-way solenoid valves
If the equalising orifice is blocked by build-up of dirt, it can easily be removed and cleaned with compressed air. The valve is designed with cast iron valve body and flanged connection. Learn more about our valve range in the Danfoss Learning eLessons eLesson: The seal material determines the minimum temperature. Water-hammer damped design and built-in pilot filter ensures a reliable operation. During the movement of the diaphragm the rubber is stressed and relieved several times and often determines the lifetime of the valve.
Insensitive to dirt The flow through the dirt sensitive pilot system is filtered on the EVB.
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 ev2220b range of standard applications. It makes it possible to use 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 Dnafoss connections: Built-in pilot filter as standard, adjustable closing time and enclosures up to IP67 ensures optimal performance even under critical working conditions.
The valve is designed with very smooth internal shape of the valve body. Wide coil range up to IP By controlling the closing speed at this stage the water hammer can be reduced. Broad range of standard options EB is a range in a modular program. In addition the closing speed can be adjusted by changing the equalising orifice.
Danfoss EVB water hammer damped solenoid danfosz In general it is the closing speed of the valve that determines the water hammer phenomenon.
Valve body in brass, dezincification resistant brass and stainless steel ensures that a broad variety of application can be covered. Up to IP67 Thread connections: They are available normally closed or normally open.
EV220B, servo-operated solenoid valves
EVB, servo-operated solenoid valves. For water and similar neutral media Flow range for water: Broad range of different body and sealing materials The EVB range is available in three different body materials and with three different seal materials. Direct and indirect servo operated valves eLesson: Home EVB series Solenoid valves.
To 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.
This is possible because of the high quality EPDM type and the special ddanfoss of the reinforced diaphragm reducing the internal stress level. Direct operated solenoid valves eLesson: For water, steam, oil, compressed ev22b and gases Flow range for water: Material, media and market failures eLesson: This results in a very good external tightness. If this spring is very soft only a low differential pressure is needed to lift the diaphragm resulting in a high opening degree.
This program is especially for OEM applications demanding a robust solution and moderate flow rates. The tool is intended to make it easy for installers and fv220b to specify the correct industrial solenoid valves for eanfoss range of standard applications. Basic valve and coil theory eLesson: Up to 10 bar Viscosity: This means you don’t need an assisted lift solenoid valve as in most of the cases. This is done by the closing spring.
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 giving a viscous damping in the very late closing stage. Also the danfpss of a special design of the diaphragm to increase its lift height increases the capacity. 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.
Spare parts kits for EVB. For water, oil, compressed air and similar neutral media Flow range from 0. This makes it possible to use the EVB for’ several brines.
Up to 50 cSt Coil enclosure: The program comes complete with the clip-on coil and IP65 electrical plug and has been carefully designed to simplify product selection. In reality the water hammer comes just before the valves closes.