DEFINITIONS:

these valves are designed to use air, filtered with a 40 micron filter.  They can be used with air, nitrogen, CO2 and low viscosity fluids like water and some light oils that are compatible with viton O-rings.  

A 4-way valve is usually used to control double acting air cylinders.  It has an inlet port and 2 outlet ports for each side of th air cylinder.  It ususally has 2 exhaust ports, for a total of 5.  

Solenoid coils come in several voltages.  I have both 12VDC and 110VAC available

These valve have 1/8" pipe size ports.  They come in 1/8" BSP and 1/8" NPT pipe thread sizes.  BSP stands for British Standard Pipe, and NPT stands for National Pipe Thread .  BSP is common in British Commonwealth countries and NPT  is standard in the US.. They are basically the same size but the thread form is different enough that the fittings are not interchangeable.  BSP can be converted to NPT with a special thread tap.  

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The solenoid valves in this listing are "AIRTAC" Brand manufactured in China.  They come with 1/8" BSP ports and various solenoid voltages.  I stock parts to configure each solenoid to your requirements.  Each valve is assembled to order and bench tested before shipment.  

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