The Macnaught WM series range of positive displacement oval gear flowmeters are designed for Custody Transfer and provide highly accurate flow measurement performance. The WM Series offers ±0.50% accuracy of true reading in a compact footprint, requiring no flow conditioning and with high pressure and temperature capabilities. The WM series meters are available in sizes from 1” to 4” threaded connections with optional flanges.  They are constructed with PPS, aluminum or stainless steel bodies and PPS, aluminum or stainless steel rotors with applicable seals. The advantage of the WM series positive displacement meters is that they are unaffected by variations in temperature, viscosity or pressure and they will always provide consistently accurate and reliable pulsed output for all clean liquid applications.