... Type: Electric Material quality: AISI304, AISI316L Flux domination of pipeline: DN25-150&1"-6", applied to the stainless ... Working principle: Remote-controlled operation by the driving gear Three drive forms: Normally closed, normally opened and opened & closed by ... Dairy, Beverage, Pharmacy We are specialized in producing different kinds of valves , pipe fitting ,tubes , manhole covers ,pumps , etc ...