No stem leakage as the stem area double sealed with a formed multi-ply bellow and gland packing completely preventing stem leakage of toxic fluids

No loss of line fluid through stem area increasing productivity with high corrosion resistant valve bodies made of austenitic stainless steel and leak-free stem design

Easy maintenance gland re-tightening and packing replacements not required,

Protection of the quality of line fluids as fluids are not in direct contact with an atmosphere, and protected from the contamination caused by foreign objects.