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up to 20 bar / 290 psi

The „soft-sealing“ by the diaphragm provides a reliable shutoff – with SISTO valves for pressures up to 20 bar (290 psi).

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durable diaphragms

Our unique design with enclosed and spiral supported diaphragms support the durability of the SISTO diaphragms.

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reduced death spots

The general construction principle of a diaphragm valves reduces death zones to a minimum. This supports sterility in processes.

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broad range of materials

As the most common material for the valves body we are using 1.4435. However, our strength is the processing of higher alloys on the base of nickel or other special materials.

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all connection types

Butt weld end, clamp connection, sterile screw joint or sterile flange – all connection types are possible.

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easy installation

To facilitate installation and to ensure self-draining of the valve, we are using laser marking on the butt weld end to visualize the correct angle.

Single Seat Valves

Multi Seat Valves

Tank Valves

Actuators

Diaphragms

Accessories /

Custom Solutions

Downloads / Documentation