207 Series
The 207 series are normally open servo-assisted (also known as pilot operated)
solenoid valves. These offer the benefits of significantly lower cost
and power consumption when compared with direct acting valves able to
give the same performance in terms of flow rate and maximum operating
pressure. Because they require a minimum pressure to open the diaphragm
servo-assisted valves are only suitable for use in situations where the
inlet pressure is unlikely to fall below the minimum differential
pressure quoted by the maker. A significant advantage of the 207 series
is that for most sizes the ACL series E207 solenoid valves require a
minimum differential pressure of only 0.15 bar making them usable in a
wide range of fluid control applications. The 207 series is available
with a wide choice of seal materials, the solenoid coil can be fitted
with an IP65 DIN connector to provide environmental protection. As with
all servo assisted solenoid valves the need for a small diameter
equalisation hole in the diaphragm means that they should be protected
by a pre-filter if dirt or rust particles are likely to be present in
the media.
Now available with WRAS seal material.
Click to find out more.
Sizes
from 1/4" - 3" BSPConstruction
Body and cover: Brass
Armature tube: Stainless steel
Plunger and core: Stainless steel
Springs: Stainless steel
Seal material: NBR - FPM - EPDM - WRAS EPDM
Features
Minimum differential pressure 0.15 bar
Maximum allowable pressure 25 bar**
Maximum fluid viscosity 25cSt (mm ²/s)
Ambient temperature rating: with class F coil -10°C +55°C
with class H coil -10°C +80°C
Preferred mounting position: with vertical coil above.
Options
Electroless nickel plating
UL certified coilsN.B. Unless a voltage is stated in the description our ACL valves are NOT supplied with coils.