Heavy industrial, maritime, chemical and petrochemical applications where rubber-lined butterfly valves cannot be used due to their limited pressure and temperature range.
Recommended in: Chemical, Food & Beverages
Technical information
High-performance stainless-steel butterfly valve.
Patented seat construction for 100% bi-directional seal.
Full-length shaft-disc construction and replaceable seat.
One-piece spindle in an anti-blowout design.
Antistatic version with ground connection.
Dimensions in DN50 to DN150 (2" to 6").
Drilled in dimensions DN50 to DN150 PN16.
With "direct mount" top-flange in accordance with ISO-5211.
Version with lever.
The following applies to the PTFE (TF 1641) version: All components intended to come into contact with food comply with EC1935 und FDA.
Medium temperature with standard seat made of PTFE (TF 1641): -29/+210°C, with RPTFE seat: -29/+250&°C, with seat of Inconel B637: -29/+500°C.
Construction
Wafer connection type.
Double-eccentric.
Design in accordance with API 609 and ASME B16.34.
Construction length in accordance with EN 558, series 20.
Suitable for mounting with flanges in accordance with EN 1092-1.
Nominal pressure class is Class 150 (PN20).
Charpy impact test at -29°C.
Soft sealing tested according to EN12266-1 rate A for EN- or according to API 598 for ASME valves.
Metallic sealing tested according to ASME FCI 70-2-2003: Table 1 Class V for Class-150 valves up to DN300 and Table 1 Class IV for DN350 and above and for all Class-300 valves.
Approval
PED module H in accordance with 2014/68/EU.
SIL 2 in accordance with IEC 61508-1 and SIL 3 with duplicate design in series or in parallel (redundancy).
Declaration of conformity in accordance with EC 1935/2004 and FDA.
Options
DN50 to DN150 can also be designed with PN10 or class-150 bore.
Pressure class PN25, PN40, Class 150 or Class 300.
Available as a socket or double-flange model.
Available in steel.
Equipped with worm gearbox and pneumatic, electric or hydraulic actuators.
Position feedback for manually actuated or automated valves.
Available with other seat materials such as R-PTFE and metal seat (Inconel).
Certified fire-safe design available.
Spindle seal in accordance with ISO 15848-1-CO3 Class BH for fugitive emissions.