- 1 - 8th edition No. SS2-8113-1110 CV3000 Series Compressible Fluid Service Low-Noise Cage type Control Valves Model HCN OVERVIEW Model HCN Low-Noise Cage type Control Valves have been designed to remarkably reduce acoustic noise in services of compressible fluids such as steam, air, and natural gas. The cage has a large number of small holes and renders an ideal pressure reduction with a combination in two steps of “restriction” and “diffusion and expansion.” The fluid passage has been designed in S-figure shape for smooth flow of fluid with less pressure loss and a stabilizer is provided as a strainer for flow near the cage, thereby permitting a large Cv value. The valve plug is of a pressure-balanced type which allows control of a high differential pressure with a small actuating force. The actuator is a compact but high output diaphragm motor of a multiple spring type structured in a simple mechanism. The model HCN valves, which are compact but of a low noise type and render high dynamic stability, are suitable especially for control of high temperature, high pressure or high differential pressure process lines. SPECIFICATIONS Body Type Straight-through, cast globe valve Nominal size 1., 2, 2., 3, 4, 6, 8 inches Pressure rating . JIS 10K, 16K, 20K, 30K, 40K . ANSI Class 150, 300, 600 . JPI Class 150, 300, 600 End connection . Flanged end; . Welded end; SW (1., 2 inches) BW (2. to 8 inches) Connection type Pressure rating Applicable standard FF JIS10K JIS B2210-1984 ANSI Class 125 ANSI B16.5-1981 JPI Class 125 JPI-7S-15-1993 RF JIS10K, 16K, 20K, 30K, 40K JIS B2210-1984 ANSI Class 150, 300, 600 ANSI B16.5-1981 JPI Class150, 300, 600 JPI-7S-15-1993 RJ, LG ANSI Class 150, 300, 600 ANSI B16.5-1981 JPI Class 150, 300, 600 JPI-7S-15-1993 Tongue and groove(groove) Male and female(female) JIS16K, 20K, 30K, 40K JIS B2202-1984 Material For body/trim material combinations and operating temperature ranges, refer to Table 1. Bonnet . Plain bonnet (-17 to +230 °C) . Extension bonnet type 1; (-45 to-17 °C and +230 to +566 °C) . Extension bonnet type 2; Integral cast type (-100 to -45 °C) Welded type (-196 to -100 °C) Note) Take care not exceed the operating temperature ranges specified for respective materials. Gland type Bolted gland Packing / Grease . Grease not provided When V shaped PTFE packing or PTFE yarn packing is used. . Grease provided When graphite packing is used. Note) PTFE: Polytetrafluoroethylene 2 10 Specifications are subject to change without notice. “This product is designed for general industrial use.”