APPLICATION

The TECOFI resilient seat gate valve is intended for use in application such as: water supply and treatment, irrigation and sanitation.

Fluids

water, waste water, sewage water, non-aggressive neutral liquids, etc.

GENERAL CHARACTERISTICS

• Range : from DN40 to DN400.
• Resilient seat gate valve for ON/OFF with nonrising stem.
• PN10 and PN16 flange mounting (drilling of suitable flanges from DN200).
• Body and bonnet assembled by screws protected by a molded sealing gasket.
• Wedge in ductile iron covered with a thick layer of elastomer.
• Ribs (slider from DN350 to DN400) on the wedge outer face to facilitate its guiding in the body.
• Upstreamdownstream tightness made reliable thanks to the enormous qualities of elasticity and rigidity of the wedge.
• At the end of closing the latter is pressed onto the flat bottom of the valve and takes perfectly its shape. This results in the absorption of impurities contained in the fluid, such as sand, gravel, etc. From the first moment of opening, impurities or waste are returned to the fluid which evacuates them.
• Tightness of the upper part guarantees thanks to a system of Orings placed next to each other and separated by small metal segments.
• Very economical use without the need for maintenance. Low pressure drop.
• Full bore at the end of opening. No retention zone.
• Good corrosion resistance (epoxy coating inside and outside the body) fasteners protected from external aggressions by wax coat.