Valves are manufactured in the dimensions DN 25 to DN 250 and 1/2″ to 10″.
The standard finish is 120 grit (Ra 1.01-1.14 µm max).
The maximum operating pressure is 7 bars; 2 bars for PTFE seal rings.
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Valves and FittingsTassalini butterfly valves are manufactured in AISI 304L and AISI 316L stainless steel and are obtained from hot-pressed and solubilized parts. The shutters are made from hot-pressed and solubilized AISI 316L stainless steel parts, mechanically machined on all surfaces and ground on the rotating parts. The standard application of two PTFE bushes on the shafts of the shutters allows to eliminate the friction in the rotations. The gaskets are produced with compression molding and with excellent quality elastomers. The standard elastomer is food grade silicone; on request, EPDM, FTM, PTFE coated PTFE, PTFE + silicone are available. All flanges are interchangeable, and the valves can be equipped with manual or pneumatic controls. There is a wide range of manual controls to satisfy the different system requirements; the pneumatic controls can be horizontal or vertical with single acting; double effect and flow regulation; and can be fitted with proximity contact, microswitch, solenoid valve and connector.
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Valves and FittingsSight glasses are manufactured from AISI 304L and AISI 316L stainless steel and are available either in-line or with radial connection. They are of high strength construction. Glass is in Pyrex and is available with a Plexiglas external guard as an option. Sight glasses are equipped with special tie rods and seals to prevent load pressures and vibrations on the glass. The standard finish is 120 grit (Ra 1.01-1.14 µm max). The maximum operating pressure is 10 bars.
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Valves and FittingsTassalini ball valves are of heavy-duty construction. The parts in contact with the fluid are manufactured exclusively of AISI 316L stainless steel.
