Direct mounting compact design requires minimum space for operation and installation with fewer potential leak points.Cost savings when manifolding the valves by eliminating several parts used in conventional methods of ‘piping up’.Free-swivelling ball end stem ensures perfect alignment, providing repetitive bubble-tight shutoff and long life.PTFE or graphite packing below stem threads prevents lubricant washout and thread corrosion.Back seat stem prevents blowout or removal while in operation.Threaded vent ports allow vent to be piped away safely. Supplied plugged as standard.Direct mounting via standard flanged connections at 2?” (54 mm) centers. Non-standard centers also available.Standard pipe bracket bolts directly to the manifold providing a rigid support for the transmitter. Instrument can be removed easily for service or repair.