Valves & Manifolds

SMC high purity series LVA valve has three types of body materials (SUS/PPS/PFA) that can be selected based on the customers application. Special diaphragm construction insures gentle opening and closing that prevents the formation of micro-bubbles. A unique guide ring on the piston rod eliminates lateral motion of the poppet, greatly increasing seal life and reducing particle formation.

High purity chemical valves, series LVC with integral fittings eliminate the possibility of residual liquid in pipe threads. In addition, the body has been designed for smooth flow with minimal internal dead space. Special diaphragm construction insures gentle opening and closing preventing the formation of micro-bubbles. A unique guide ring on the piston rod eliminates lateral motion of the poppet, increasing seal life and reducing particle formation.

• High purity air or manually operated compact valve.
• Applicable fluid: chemical liquid.
• High flow rates, up to 114 l/min.
• Fittings or tube extensions integrated in the valve.
• Pilot port can be selected from 4 directions.
• Options: with flow rate adjustment, bypass, indicator, high back pressure (0.5 MPa).

Series LVQ is a 2 port chemical valve with a non-metallic exterior. A high density PVDF housing offers increased chemical resistance and the special diaphragm construction insures gentle opening and closing preventing the formation of micro-bubbles. The LVQ guide ring eliminates lateral motion of the poppet, which reduces internal leakage.

LVH series air operated high purity valves are corrosion resistant against acid, alkali and ultra pure water, making the LVH valve the perfect answer to overcome the harsh environments often encountered in wet process applications. Series LVH is a manually operated valve, available in a threaded or integral fitting type.

An complaint often heard in both semiconductor and chemical equipment industries, is that it's almost impossible to eliminate bubble formation in the fluid circuit during the manufacturing process. Following extensive research and development, engineers from SMC, the worlds leading automation control experts, are pleased to announce that this is no longer the case with the introduction of their latest chemical needle valves – Series LVN.Developed especially to overcome bubble generation when using light liquids, LVN valves are manufactured from a new type of lightweight PFA material which is highly compatible with acids, bases and ultra pure water. Normally installed on top of the filter unit, these needle valves can regulate flow rates between 0 to 12 l/min and when used in conjunction with SMC's LQ2 hyper PFA fittings, with their unique quadruple seal construction, outstanding performance is achieved providing minimal leakage, reduced residual fluid and high flexural strength.Series LVN valves are the perfect answer when working with fluids between 5 – 90º C, at operating pressures of 0 – 0 ,5 MPa and in ambient temperatures of 0 – 60º C - a champagne solution minus the bubbles.

If you need a 2 port air operated valve for use with aggressive fluids then look no further than our new Series LVP. Developed specifically for use with deionized water and harsh chemicals such as hydrochloric acid and hydrogen peroxide, our R&D engineers have designed this multi-purpose valve with a vinyl chloride (CPVC) body and a PTFE diaphragm. Suitable for use in many industrial applications including clean in place (CIP) systems, electro plating and metal finishing, water treatment and PCB manufacturing, Series LVP offers further performance benefits including simple flow rate adjustment and dramatically reduced low water hammer – 50% lower than conventional fluid valves. With the possibility of piping from four directions and a PVC unfixed union to accommodate a rigid vinyl chloride tube, these new LVP valves deliver impressive operational performance when working with a large range of aggressive or corrosive fluids.