- 1 - 3rd edition No. SS2-VFR100-0100 FloWing Eccentric Rotary Control Valve (For size 6 to 12 inches) Model VFR OVERVIEW The eccentric rotary control valve, “FloWing” (model VFR), consists of a straight-through valve body with minimal flow resistance and an open yoke plug with a wing that rotates eccentrically. The FloWing is suitable for applications requiring a large flow capacity and wide rangeability, and for the control of those slurry fluids susceptible to clogging. Also, the model VFR is able to control the occurrence of cavitation when the liquid is decompressed with high pressure reduction and can decrease the level of noise and vibration. The model VFR can effectively decompress the liquid by inserting a perforated plate (Multi-hole plate) into the main body outlet side of the valve. Therefore, cold and warm water with a low or medium pressure line or process liquid can be controlled even with a Kc value* over 0.55. Furthermore, for the multi-hole plate, there are two types: the built-in type and the combined external type (model HRL). Note) Please refer to selection guide. SPECIFICATIONS Body Type Straight-through Valve size 6, 8, 10, or 12 inches If you need nominal size 4 inches or below, please refer to No.SS2-VFR100-0200. Pressure rating Note) : wafer type, ..: flange type Connections . Wafer type Note) For bolt and nut materials and fluid temperatures, refer to Table 1. (The connection bolts and nuts are provided as standard accessories.) Pressure rating Nominal size (inches) 6 8 10 12 JIS 10K, 20K ANSI 150, 300 JPI 150, 300 .. .. .. .. . Flange type Material For combinations of valve body, trim materials and fluid temperatures, refer to Table 1. Bonnet Integral body type (-60 to +350°C) Gland type Bolted gland Packing/grease . Without grease…...PTFE yarn . With grease………Graphite packings Note) PTFE: Polytetrafluoroethylene. Connection type Pressure rating Applicable standard RF JIS10K JIS B2212-1972 JIS20K JIS B2214-1967 ANSI Class 150, 300 ANSI B16.5-1968 JPI Class 150, 300 JPI-7S-15-1993 4 2 Specifications are subject to change without notice. “This product is designed for general industrial use.”