The N6 MK165 is a non rising stem, pressure balanced stop valve. They are suitable for use with gases where tight shut-off is required in high pressure lines. N6 MK165 is designed for use with hydrogen and other non-corrosive and non-oxidising gases. The N6 MK165 is pending TPED approval and may be used as a primary closure device for transportable vessels (e.g. Cylinder Banks on Trailers).