- 1 - 8th edition No. SS2-8110-0500 Micro-Flow Control Valves (Rating : ANSI 600 or less) Model VSM OVERVIEW Model VSM Micro-flow Control Valves are used for control of a small flow. The compact and sturdy valve body is of a forged structure and it is less affected by stress from the pipe. The valve employs a top entry type and parts can be replaced without dismantling the valve from the pipe. Thread-connected valve can be readily disassembled and reassembled without requiring any special tools. SPECIFICATIONS Body Type Straight-through, forging micro-flow valve Pressure rating ANSI 600 (at body part) End connections Threaded end : Rc1/4, Rc1/2, 1/4NPT, 1/2NPT Flanged end : 1/2, 3/4, 1 inch Material Stainless steel (SUS F304 or SUS F316) or other alloy steel Bonnet Plain bonnet (-30 to +400°C) Gland type Screwed gland Packing V shaped PTFE packing or graphite packing Gasket Flat type; SUS316L PTFE coating (-30 to +200°C), tantalum (+200 to +400°C) Trim Valve plug Cage type, Single seated, Contoured type plug . Equal percentage (%C) . Linear (LC) Material Stainless steel (SUS 316), Stellite, or other alloy steel Connection type Pressure rating Applicable standard RF JIS10K, 16K, 20K, 30K, 40K JIS B2210-1984 ANSI Class 150, 300, 600 ANSI B16.5-1981 JPI Class 150, 300, 600 JPI-7S-15-1993 RJ ANSI Class 150, 300, 600 ANSI B16.5-1981 JPI Class 150, 300, 600 JPI-7S-15-1993 Actuator Type Multispring diaphragm motor (model PSK1D, R) Action Direct or reverse action Diaphragm Ethylene propylene rubber reinforced with fabric Spring range 40 to 120 kPa {0.4 to 1.2 kgf/cm2} 80 to 160 kPa {0.8 to 1.63 kgf/cm2} Air supply pressure: 180 kPa {1.8 kgf/cm2}, 270 kPa {2.8 kgf/cm2} Air connection Rc1/4 internal thread Ambient temperature -30°C to +70°C Valve action Air-to-close (Direct-action actuator is combined.) Air-to-open (Reverse-action actuator is combined.) Optional accessories Positioner (model AVP smart type electronic, model HEP electronic, model VPE pneumatic) Pressure regulator with filter Top Mounted hand wheel Limit switch (model VCX) Skinner solenoid valve, and etc. 1 11 Specifications are subject to change without notice. “This product is designed for general industrial use.”