Versatility from VF Series Butterfly Valves. Specifically designed for a wide range of HVAC applications, these standard-pressure, standard-temperature valves offer two-position and modulating...
Butterfly valves are a great (and less expensive) alternative to globe and other control valves in applications where 1-2% accuracy is acceptable. Process conditions will dictate whether a resilient...
Mar 02, 2011 · Butterfly Control Valve Butterfly Control Valve, from Table 6A-2, K = 0.9 (note that Table 5A-3 gives K = 45f or K = 0.675, This discrepancy is a good illustration why K values...
Butterfly valves are extremely versatile and suitable for many control and shutoff applications. These quarter-turn valves open and close by turning the disc 90° inside the flow port. Butterfly...
Butterfly valves have been made to very large diameters (10 m or more) operating under very high heads and at high water velocities (20 m/s or more) and have proved successful in use....
Figure 1. A butterfly valve reduces cavitation by utilizing air sucked in by the liquid vapor through a series of holes. A check valve prevents the escape of liquid in case there is no vacuum...












