Flomatic’s Model 888VFD wafer-style check valves can be close coupled with a butterfly valve, allowing for operation of the butterfly valve in an open or closed position with no interference. Its unique poppet design operates quietly and efficiently across a wide range of flow velocities, which makes it ideal for varying flow rates in VFD-controlled pumping systems. The design helps minimize flow losses and hydraulic shocks in the pump system. The spring-loaded poppet system is guided in an oversized sleeve for stability, resulting in quiet and efficient operation regardless of flow rate. The valve begins to close as flow is reduced and fully closes at zero velocity stopping reverse flow, helping to reduce water hammer shock. It is suitable for direct mounting of butterfly valves, eliminating the need for a 2- to 6-inch spool piece. The valves save energy and maintenance costs, and are rated NSF/ANSI 61 and NSF/ANSI 372, and they meet MSS-SP 125. 800-833-2040; www.flomatic.com.