The Wells range of high-pressure solenoid valves covers a range of pressure up to 415 bar (6000 psi), and orifices from 1.6mm to 12.7mm diameter (1/16″ to 1/2″). Two and three way port arrangements are included in the range.
For the smallest orifice (E20 to E29) a porous bronze filter disk is fitted as standard into the valve port.
For all larger sizes of valve, it is recommended that a Wells high pressure filter is fitted upstream of the solenoid valve.
The largest orifice range (E50 to E57) incorporates a pilot valve to operate the main valve due to the need to overcome the spring loads and friction on the main valve steam, a minimum pressure of 10 bar (150 psi) is needed to operate the valve.
In the case of solenoid valves E26 E27 and E50 to E57 the vent is not ported. These valves can only be used for gas applications.
Two-way High Pressure Solenoid Valves use an electrical signal to either open or close the valve.
Three way High Pressure Solenoid Valves use the electrical signal to switch the line pressure between the inlet and the vent.