Model 565 consists of high-performance plastic components, including a PVDF disc with fiber-reinforced polyamide housing and EPDM or FKM seals. The butterfly valve is suitable for pressures up to 232 psi (16 bar) and temperatures ranging from 14 to 176°F (-10 to 80°C). Available in sizes from NPS 2 through 12 (DN50-300), the valve is lighter than a comparable metal valve, allowing a single technician to safely handle it during installation, says the manufacturer. The valve is supplied in the same installation length as metal valves (ISO 5752 Row 20, API 609 Table 2), so retrofitting does not require additional work on the pipes.
Image courtesy of GF Piping Systems.