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 DN200 (2" to 20").
Drilled in dimensions DN50 to DN150 PN16 and available from DN200 with PN10, PN16 or Class-150 drilling.
With "direct mount" top-flange in accordance with ISO-5211.
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.
Design pressure class PN25, PN40, Class 300.
Available as a socket or double-flange model.
Equipped with lever, 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.
Larger dimensions up to DN1200 in PN10/PN16/PN25 of Class 150 and DN600 in PN40 of Class 300.
Spindle seal in accordance with ISO 15848-1-CO3 Class BH for fugitive emissions.
