Alfa Laval LKC-2 non-return valve, ISO 51 mm, FPM seal ring. Product wetted steel 1.4301 (304) / 1.4404 (316L), internal surface Ra < 0.8 µm. Rated 10 bar and full vacuum.
Hygienic spring-loaded non-return valve. On a vertical pipe it needs about 0.06 bar differential pressure to open. FPM is Alfa Laval’s option for -10 °C to +180 °C, above the 140 °C limit of the standard EPDM.
The item master records the code as LKC-2-ISO-SVE-2359-51-FPM. The article number is not in Alfa Laval’s current or legacy catalogue, so the size and seal material here come from that code rather than from Alfa Laval.
