Butterfly valve Tomoe Valve Europe

1. High Tension Coil Spring
Ensures a stable seal at upper and lower gland even at extreme temperatures or when thermal shock occurs

2. Minimum 3mm PFA Thickness
Seam free PFA injection moulding on the seat and disc to a minimum thickness of 3mm prevents permeation of dangerous fluids or gases

3. No Special Gasket Needed
Stable flange sealing performance is ensured by concentric circular grooves on the flange faces thereby eliminating the need for a special gasket when operating under specified temperatures. The wider sealing area also ensures minimum "creep" at high temperature. Flange sealing mechanism is independent from the seating and gland seals ensuring there is no loss of the line fluid.

4. Total Sealing
Valve structure includes primary, secondary and independent tertiary seal - ie. gland packing. There is also a fourth seal of 0-rings on the top/bottom stems - ie. dust seal.

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