- 1 - 8th Edition No. SS2-8110-1300 OVERVIEW The low-noise cage type double seated control valves are featured with very low operating noise (aerodynamic noise) when they are used to handle compressible fluids (such as stem, air, natural gas, ethylene gas). These valves operate still more silently than model VDC cage type valves. The cage and valve plug are of a multiple-hole construction. The components for “restriction”, “divergence” and “expansion” are laid out in a rational manner to accomplish low-noise pressure reducing action. The valve plug is designed in such configuration that it produces no torque vibration. Further, overall plug is held directly inside the case so that it is resistant against vibration and wear. The valve body can be easily disassembled and reassembled. The trims can be inspected and replaced very rapidly. Components are interchangeable with those of the model VDC cage type valves. SPECIFICATIONS Body Type Straight-through, cast glove valve Nominal size 1., 2, 2., 3, 4, 6, 8, 10, 12 inches Pressure Rating . JIS 10K, 16K, 20K, 30K, 40K . ANSI 150, 300, 600 End connections Flange end ; Connection type Pressure rating Applicable standard FF JIS10K JIS B2212-1972 ANSI Class 150 ANSI B16.5-1968 JPI Class 150 JPI-7S-15-1993 RF JIS10K JIS B2212-1972 JIS16K JIS B2213-1967 JIS20K JIS B2214-1967 JIS30K JIS B2215-1967 JIS40K JIS B2216-1967 ANSI Class 150, 300, 600 ANSI B16.5-1968 JPI Class 150, 300, 600 JPI-7S-15-1993 RJ ANSI Class 150, 300, 600 ANSI B16.5-1968 JPI Class 150, 300, 600 JPI-7S-15-1993 Material For body/trim material combinations and operating temperature ranges, refer to Table 1. Bonnet . Plain bonnet (0 to 200°C) . Radiator finned bonnet (over 200°C) . Extension bonnet (0°C or less) 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 Trim Valve plug Pressure balanced type Cage (Integral, stuck, or split cage) Multiple orifice design Metal seat Linear (LV) Note) For cage design ( integral, stuck, or split cage), refer to Table 1. Low-Noise Cage Type Double-Seated Control Valves (Rating : ANSI 600 or less) Model VDN 2 11 Specifications are subject to change without notice. “This product is designed for general industrial use.”