The TTV Colossus 50WX4040 is a double offset (double eccentric) high performance wafer butterfly valve with an A216 WCB carbon steel body, a CF8M stainless steel disc and an F316 stainless steel shaft. This lever-operated version covers sizes from 2" (DN50) to 4" (DN100) and is supplied with a lockable lever. It is built to API 609, ASME B16.34, MSS SP-67 and EN 593, with NACE MR0175 compliance, and is tested to ISO 5208 / API 598.
Choose an RPTFE soft seat (-50°C to +220°C) for aggressive chemicals, vacuum, LPG/LNG, petroleum and ethylene, or a fire-safe F316L metal seat (-100°C to +500°C, BS 6755 Pt 2 / API 6FA / API 607) for saturated steam, gases, bitumen and thermal oil. The wafer body fits between PN10, PN16, PN40, ANSI 150 or ANSI 300 flanges. For sizes above 4", see the gearbox-operated version.
