Econ® PTFE-lined butterfly valve, ring type with centric disc. Disc and shaft are manufactured as a one piece unit. The PTFE lining extends to over the flange sealing surfaces and is pressed against the disc by means of cup springs to guarantee a perfect stem seal. The two-piece body of ductile cast iron features four centring holes and is suitable for installation between flanges rated DIN PN 10/16 and ANSI 150#. Short Face To Face acc. to ISO 5752-20 and DIN 3202/3 K1. The body is fitted with a top flange acc. to ISO 5211 as required for fitting of various manual controls or automatic controls.
This type of butterfly valve is generally used in systems for corrosive and hazardous liquids, and gases up to a maximum of 16 bar (PN 16 model). Designed for use on chemical tankers, this valve carries a type approval by Bureau Veritas.
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