The 600 series stop valve is used with 18 mm tape (.600" inside diameter x .700" outside diameter) and is attached with a twist lock system for a secure, waterproof connection, even in dirty conditions. It is primarily used in orchards. It cuts the flow of water in some irrigation lines through simple manual rotation. The valves are interchangeable and may be used from season to season.
** At the end of the year, when lines need to be emptied, a less powerful compressor can be used since you can turn the valves on once at a time.