- 1 - 4th edition No. SS2-ALV100-0100 OVERVIEW Model ALVB/ALVM, large sized pressure balanced cage type control valves have high performance specifications and are designed for heavy duty service. The valve body has large capacity, wide range ability and high accuracy flow characteristics. The valve plug is structured in a pressure balanced type that permits flow control of high differential pressure with a small actuating force. A piston ring (seal ring) put around the valve plug restrains a excessive flow between the valve plug and the cage and prevents from seat leakage and sticking problems. A powerful diaphragm actuator or high performance piston cylinder actuator is mounted on the valves and realized stable fluid control. Therefore, the model ALVB/ALVM are widely applicable for control of high differential pressure process lines where dynamic stability, low noise and anti-cabitation/ flashing are required. SPECIFICATIONS Body Type Straight-through, cast globe valve Nominal size 14, 16, 18, 20 inches Pressure rating . Model ALVB: JIS 10K, ANSI 150, JPI 150 . Model ALVM: JIS 20K, ANSI 300, JPI 300 End connections Flange end Materials For body/trim material combinations and operating temperature ranges, refer to Table 1. Bonnet Plain bonnet (-5 to 200°C) Gland type Bolted gland Packing/Grease Grease not provide When V shaped PTFE packing and PTFE yarn packing is used. Note) PTFE: Polytetrafuloroethylene. Connection type Pressure rating Applicable standard RF JIS10K, 20K JIS B2210-1984 ANSI Class 150, 300 ASME/ANSI B16.5-1988 JPI Class 150, 300 JPI-7S-15-1993 Gasket Type Serrated type Material SUS316 PTFE coating Trim Valve plug Single seated pressure balanced type Cage Metal seat (For flow characteristics, refer to Figure 1 and Figure 2.) Equal percentage (%V)) Linear (LV) Materials For body/trim material combinations and operating temperature ranges, refer to Table 1. Actuator Type Single acting diaphragm actuator (Model VA5) Piston actuator (Model PPA6) Action Direct or reverse action Diaphragm Type VA5: Cloth-embedded chloroprene rubber Spring range Type VA5 40 to 200 kPa {0.4 to 2.0 kgf/cm2} 80 to 240 kPa {0.8 to 2.4 kgf/cm2} CV3000 Alphaplus series Large sized Pressure Balanced Cage type Control Valves Model ALVB / ALVM 2 7 Specifications are subject to change without notice. “This product is designed for general industrial use.”