Product Features

SISTO-C valves with one seat are available as simple straight way valves (2-way valve body) and as T- or Y-valves (3-way valve body). The are offered with butt weld ends or clamped connection according to common standards such as DIN 11850, ISO 4200/1127, or ASME BPE.

Other connection types, such as sterile flanges, are of course also available.

sisto diaphragm valves


Usability up to 20 bar / 290 psi and our unique sealing system with a spiral support are only some advantages of the SISTO diaphragm valves.



Type series booklets, operating instructions, declarations of conformity and other documents can be found in the download area.



A selection of 3-D models is available here. Additional models can be provided on request.