Accu-Sync Valve Recommended Flow Range ValveFlow (GPM) SRV-100 5 to 40 PGV-100/101 5 to 40 PGV-151 20 to 120 PGV-201 40 to 150 ICV-101 5 to 40 ICV-151 20 to 150 ICV-201 40 to 200 ICV-301 150 to 300 IBV-101 5 to 40 IBV-151 20 to 150 IBV-201 40 to 200 IBV-301 150 to 300