other varieties of solenoid valves are available and the same basic principles apply. These other varieties include three- and four-way and normally open valves. The larger sizes use a pilot valve to ...

The rotating action also cleans the valve seat as it closes. The stainless steel stem resists corrosion, and the three O-rings ensure a leakproof seal. Models are available with sweat or flare ...

The single tube versions act as standard on/off two-way valves and can be normally-open or normally-closed. The two-tube version have a normally-open tube and a normally-closed tube, letting them ...