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Mark 978 Low Flow Series The Mark 978LF Series is designed to meet the stringent specifications for low flow sterile processes. Whether the need is to control pressure, temperature, flow pH, level, or other variables, the Mark 978LF's true characterized trims and excellent repeatability makes it the right choice for your sanitary process applications. Available in sizes 1/2" and 3/4". FDA and USP Class VI conformity on all process seal materials.

Features & Benefits


Extended FDA/USP Class VI PEEK guide bushing ensures smooth, stable movement throughout entire stroke length
Broad selection of FDA/USP Class VI o-ring materials
Self draining in either vertical or horizontal orientation
Bolted bonnet provides enhanced strength and safety over clamped bonnet
Rugged 14M actuator has been field-proven for smooth operation over the life of the valve
316L SST solid barstock stem/plug