■Features◎ Achieves 20% reduction in external size as compared to the conventional KD series.(Available only in 1/4")◎ Achieves low cost pricing through commonization of parts and utilization of a forgedbody.◎ Because the cleaning and inspection processes are the same as our conventional products, the VLCD series can be used in the manufacturing of Semiconductor, FPD, andLED production devices.■Specifications■Product GradeSize VLCD4 (1/4")Cv 0.1Maximum Operating Pressure 0.98MPa (G)Wetted Area Volume 0.85cm3Fluid Temperature -10ºC~80ºCLeak RatesAcross the Seat He Leak Test Rates ≤ 1×10-10Pa·m3/secInboard He Leak Test Rates ≤ 1×10-10Pa·m3/secAtmospheric Temperature -10ºC~60ºCActuation Pressure (Pneumatic) 0.4~0.6MPa (G)Cycle Life (N2 Charged, In-house Test) 4 million cycles * Test Condition / Seat material : PCTFE Gas : N2 Pressure : 0.98MPaGrade STD EPBody Material SUS316LSurface Roughness≤ Rz 3.2 µm ≤ Rz 0.7 µm≤ Ra 0.5 μm / 20 μin ≤ Ra 0.13 μm / 5 μinPolish Mechanical Polished Electro PolishedCleaning Degreasing + Precision CleaningClean Room Environment Class 10 (Some products, Class 100)Packaging Single bagged package Double bagged packageBody SUS316LSeat PCTFEDiaphragm Cobalt Alloy■Wetted Area MaterialThe VLCD series achieves commonization of parts and utilizes a forged body while maintaining the performance of the conventional KD series. VLCDProduct Code TableModel Size Operation Valve Shape Seat Material Grade + Body Material ConnectionVLCD-type Diaphragm ValveC: Normally ClosedO: Normally OpenS: Straight V: CVC MaleVF: CVC FemaleC:PCTFE STD-316L : Mechanical Polished +SUS316LEP-316L : Electro Polished + SUS316L■VLCD Dimensions Unit: inch (mm)Model Type Connection L H H1 A B C P M M1VLCD4CS-VC-2734 1/4" CVC Male 2.05(52.0)2.56(65.0)0.43(11.0)1.38(35.0)0.87(22.0)0.87(22.0) Rc1/8 0.67(17.0)2-M5Depth 0.20 (5.0)VLCD4CS-VFC-2735 1/4" CVC Female 2.60(66.0)2.56(65.0)0.43(11.0)1.38(35.0)0.87(22.0)0.87(22.0) Rc1/8 0.67(17.0)2-M5Depth 0.20 (5.0)■Precautions① The valves are designed to be used under atmospheric pressure. Usage such as under vacuum vessels are not guranteed.② For high temperature applications, please select appropriate material for air-fittings and tubes to assure proper performance.