The direct-acting solenoid valves of the "EP" series, size G1/4, are poppet valves with a 2.5mm orifice. They are available in 2 or 3-way versions with or without manual operation. The manual operation, useful for system setup, can be activated in two ways: the first (push function) requires holding the button to operate the valve, while the second (0-1 function) keeps the valve activated in the desired position.