Pentair Water Components Catalogue 2023

No By-Pass Piston: Automatic shut-off of the outlet during regeneration - no hard water by pass. Caution: This piston is not suitable for Duplex # 7 with single- piston valves. This piston is fitted as a standard item on double-piston valves (2910 and 3900) for multiplex systems. Special wirings for Duplex are included in the valves prices. Duplex System #7 alternating: 2 valves A & B, one in service, the second one in regeneration or stand-by. Duplex System # 7 = 2 valves for duplex systems (A & B) + 1 remote meter. For example if you want to order a 2910 Duplex # 7: order 2 valves 2910 (A & B) + 1 remote meter. NBP Piston Notes for commercial and industrial valves Duplex Systems #7 For multiplex systems, or any other special systems, please contact Pentair. Fleck FLECK | VALVES | 201