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The new Tyco Keystone Composeal butterfly valves feature a composite body and disk-shaft assembly.

The valves offer benefits including high chemical resistance against the process medium, excellent external corrosion resistance and reduced weight.

Tyco predicts that the products will initially appeal to the food, brewing and industrial water applications including sea water at high temperature, deionisation, brine and cargo-container applications.

The Composeal range has a split body that clamps the seat securely in position around the entire 360 degrees – making it suitable for high line velocities and vacuum applications – and a one-piece disc-stem.

The one-piece disc-stem minimises hysteresis problems, makes Composeal suitable for regulating flows, and ensures the shaft remains dry, to eliminate crevice corrosion between the shaft and disc.

It also gives the range a high Kv value.

The Keystone Composeal double-D shaft design gives a clear visual indication of disc position, even when the valve is installed in the pipe-line, and four multi-drilled locating holes compatible with PN 6/10/16 and ANSI 150.

It also guarantees perfect concentric positioning between pipe flanges.

Incorporated flange O-rings speed up installation and remove the need for gaskets.

Composeal is available with short lead times thanks to streamlined production techniques adopted by Tyco.

It can operate in a temperature range of -40 to 120C with a maximum pressure rating of 10bar across this range.

Tyco Flow Control

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