Dual Non-Pressurized (tandem)
+ZV Added seal type V (FPM)
+BT Added seal type T (PTFE)
+BS Added seal type S (MVQ)
+ZKV Added seal type KV (FPM)
+ZKT Added seal type KT (PTFE)
+flB Added seal type KS (MVQ)
Features: Secondary mechanical seal system (as Plan 54 circulation) added to standard one. This solution is used
when flushing liquid is not available under pressure. Pumped liquid may vary its pressure, while the chamber does not have to be at a higher pressure than the pumped fluid.
Maximum prussure: 15 BAR Temperature: -10/+240°C Work Sense: Bidirectional