SISTO diaphragm valves are used in sterile and aseptic applications in the manufacture of pharmaceutical products as well as in biotechnology.
Due to our modular design principle, our valves can be flexibly designed depending on the specific application and individual solutions are possible even with short planning lead times.
Diaphragm valves are used in sterile and aseptic processes where the purity of the product is the top priority, such as the manufacture of pharmaceutical products as well as in biotechnology, but also in the cosmetics and food industries.
SISTO-C diaphragm valves are characterized by the fact that they are self-draining and free of deadleg.
The diaphragm seals hermetically and isolates the actuator from the fluid chamber. As a result, the actuating components do not come into contact with the media. This means
This means that the valve can be operated at all times, even after longer periods of inactivity.
The diaphragm as a “soft seal” provides reliable shut-off – with SISTO valves up to pressures of 20 bar.
Our unique design of an enclosed, spiral-supported diaphragm maximises the service life of our diaphragms.
The design principle of the diaphragm valve reduces dead volume to a minimum. This ensures maximum sterility inside the system.
We use 1.4435 as the most common body material. The processing of high-alloy nickel-based materials or other special materials is our strength.
Whether orbital weld ends, clamps or sterile flange connections – all types for pipe connections are possible.
We support the pharmaceutically accurate installation by marking the self-draining angle on the welding end by means of laser marking.
A special feature of SISTO diaphragm valves is their unique sealing system:
The diaphragms are chambered in the body and are additionally supported by a metallic spiral.
This has numerous advantages:
This system thus allows operating pressures of up to 20bar and a long service life of the diaphragms.
In addition to valves for aseptic processes, SISTO’s range of products also includes diaphragm valves and swing check valves for industrial applications, for building services and for power plants.
We offer these products with different coatings or linings, for example PTFE, soft or hard rubber. These solutions are complemented by pneumatic piston actuators or diaphragm actuators.
These valves are distributed – with our support – by the KSB Group or by specialised partners.
