- 1 - 4th edition No. SS2-ACN110-0100 OVERVIEW The model ACN low-noise cage type control valves are designed to reduce acoustic noise in services of compressible fluids such as steam, air and natural gas. The cage employs multi-hole structure and reduce noise by ideal pressure reduction with a combination in two steps of "restriction" and "diffusion and expansion" The valve plug employs a pressure balance function to control high differential pressure fluid with small actuator force. The ACN realizes seat leakage performance as single seat valve by seal-ring structure. In addition, the ACN is equipped the cage plug with a scraper ring to prevent a malfunction caused by foreign object enter between the cage plug and the cage. The ACN is widely applicable for reliable control of high or low temperature, high differential pressure process lines where dynamic stability, low noise are required. SPECIFICATIONS Body Type Straight-through, cast globe valve Nominal size 1., 2, 2., 3, 4, 5, 6, 8 inches Pressure rating . JIS 10K, 16K, 20K, 30K, 40K . ANSI Class 125, 150, 300, 600 . JPI Class 125, 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 400°C) . Extension bonnet Type 2 Integral cast type (-100 to -45°C), Welded type (-196 to -100°C) Note) Take care not to 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. CV3000 Series Low-Noise Cage type Control Valve Model ACN 2 9 Specifications are subject to change without notice. “This product is designed for general industrial use.”