Dividing type and mixing type by flow direction of fluid in a system. the Valve is operated by air pressure existence and nonexistence at actuator and as this acting, the main valve is operated open/close. It’s spring return Type and Various function is possible with several accessories. No leakage and strongly. Emergency operating is possible with emergency handle devices. The actuator part is compact size and it’s available to use various fluid to move the actuator. KSF-VS : It’s for Butterfly type liquid only. Installation & assembly is easy. and it is economical. Big capacity & minimum pressure drop. K3B-VS : 3way ball(“T”) type valve. Dividing type and mixing type by flow direction of fluid of system. Valve is operation by air pressure existence an nonexistence and type is division by valve installation direction.   ● Specification Model KSF-VS K3B-VS Type (Spring Return) Butterfly Ball (“T”) Applicable Fluid Water, Oil Applicable Press. / Temp. 7 kgf/cm² / 80℃ 7 kgf/cm² / 80℃ Air supply Pressure 2.5~4 kgf/cm² 5~7 kgf/cm² Operation Air fail Closed A -> B Air Supply Opened A -> C Material Body Ductile Cast Iron, Bronze, Cast Steel Trim SCS / EPDM SCS / TEFLON Size 50~100 mm 65~80mm Accessories (Option) ●Solenoid valve    ●Air set.   ● Dimensions(KSF-VS) (mm) Size mm(inch) d L D D1 D2 H1 H2 Weight (Kg) 50(2") 50 43 160 125 55 160 170 13 65(2 1/2") 65 46 160 125 65 170 170 14 80(3") 80 46 210 140 77 187 230 15 100(4") 100 55 210 140 102 192 230 18 ● Dimensions(K3B-VS) (mm) Size mm(inch) d L G D H1 H2 Weight (Kg) 65(2 1/2 ") 65 250 125 210 230 130 45 80(3") 80 262 131 210 236 133 55 Notes : 1. Also available in JIS, DIN and ANSI. For all other standards please consult factory. 2. Weights(Ductile Cast Iron) are approximate and applied JIS 10K. 3. The flanges shall conform by JIS B2210.