Georg Fischer Piping Systems Ltd Valves - Plastic-Valves - Check-Valves - wafer-Check-Valve-369 161369111

The wafer check valve type 369 PVC-U with Hastelloy C spring, part number 161369111, is designed for use in piping systems with vertical or horizontal mounting. It features supporting eyelets for simple fitting and is compatible with ISO/DIN and ANSI/BS flange adaptors, requiring the next larger adaptor size for DN40 to DN80 installations. Sealing uses a special flange gasket, and a stabilizing zone of at least five times the nominal diameter is recommended upstream and downstream. This variant, for DN200, has a body diameter of 279 mm, length of 34 mm, and weighs 2.100 kg. The valve has a minimum opening pressure of 20 mbar vertically and 20 mbar horizontally, and requires a minimum water column height of 2 m for sealing. It supports a maximum pressure of 6 bar.