Danfoss Industrial Controls
Solutions You Can Grow With
EV250B Danfoss EV250B 10 - 22B Solenoid Valve Danfoss EV250B 10 - 22B Solenoid Valve
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Technical Data |
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Pressure Range | Vacuum to 16 bar | |
Ambient temperature: | Max 80oC | |
Media temperature: | FKM : 0 to +100OC / EPDM: -30 to +120Oc (140OC up to max 3.6 bar) | |
Materials: | Valve body : DZR Brass | |
O rings : EPDM or FKM | ||
Valve plate : EPDM or FKM | ||
Diaphragm : EPDM or FKM |
Code No. (without coil) |
End Connection | Kv Value (m3/h) | Orifice (mm) | Seal* Material | Type designation | Differential pressure (bar based on coil BB max. | ||||
Main type | Specification | min. | 10 W a.c. | 18 W d.c. | ||||||
032U5250 | G 3/8 | 2.5 | 10 | EPDM | EV250B10BD | G38ENC000 | 0 | 16 | 10 | |
032U5252 | G 1/2 | 4 | 12 | EPDM | EV250B12BD | G12ENC000 | 0 | 16 | 10 | |
032U5254 | G 3/4 | 6 | 18 | EPDM | EV250B18BD | G34ENC000 | 0 | 10 | 6 | |
032U5256 | G 1 | 7 | 22 | EPDM | EV250B22BD | G1ENC000 | 0 | 10 | 6 |
EV250B Normally Open Range
Type | Connection | Seal | Diff. Pressure Min-Max |
NO |
EV250B 10B | G 3/8 | EPDM | 0-10 bar | 032U5350 |
FKM | 032U5351 | |||
EV250B 12B | G 1/2 | EPDM | 0-10 bar | 032U5352 |
FKM | 032U5353 | |||
EV250B 18B | G 3/4 | EPDM | 0-10 bar | 032U5354 |
FKM | 032U5355 | |||
EV250B 22B | G 1 | EPDM | 0-10 bar | 032U5356 |
FKM | 032U537 |
*EPDM seals for use on water, glycol and steam
NC - Normally closed versions, NO - normally open versions (in
specification code)
Coil also required for complete product, see coil types BB, BE and BG.
The EV250B is an assisted lift, servo operated valve which is
ideal in closed circuit systems with circulation pumps, e.g.
central heating systems. In these systems it is difficult to
know how much differential pressure is available because the
pump and system load are constantly varying. This means that
sometimes the differential pressure is too great for direct
operated valves and sometimes too low for servo operated
valves. We therefore offer a range of high flow valves designed
for pressures from 0 to 16 bar.
The EV250B is often a good choice of valve in drainage
applications since the pressure in a tank when it is
completely filled can be too great for a direct operated
valve. Similarly, the pressure is often too low for a servo
operated valve when the tank has almost drained.
Please note: The small orifices, passages and dead spaces in
solenoid valves of any manufacture are vulnerable to dirt
particles in the fluid. Best practice is to fit a
strainer/filter in front of any valve: this is not always
possible but all valves subject to the possibility of dirt in
the system must be protected this way where dirt is highly likely to be
present, for example outlets from metal storage tanks for
diesel fuel hydroscopic oils, externally operated valves such
as the type AV210 should be used.
Tel : International enquiries +60 (3)8961 9008, International Fax - +60 (3)8961 2007 ,