Pneumatics & Hydraulics


SMC valve manifolds built to ­withstand cleaning

November 2017 Pneumatics & Hydraulics

In the food and beverage industry, hygiene is the order of the day. Many systems and parts need to withstand treatment with steam, high-pressure cleaning and aggressive cleaning agents, whilst also preventing the formation of dirt and bacteria traps.

SMC’s new clean style valve manifolds (SY5000 series) are designed with these purposes in mind and comply with the required protection class IP69K, making treatment with steam and high pressure possible. One prominent characteristic of these manifolds is that they possess no grooves and gaps where dirt or food residue could build up. As a result, they can be cleaned quickly and effectively. Additionally, they are light and compact, which pays off in dynamic applications in particular. Installation near the application area is possible, which simplifies connection and wiring. Both contribute to a high level of energy efficiency and quick reaction times.

Freedom of motion within the manifold

These manifolds make an internal and external pilot air supply possible. Thanks to channel separation, vacuum and pressure can be used at the same time within the same valve manifold. Thus, different applications can be united in a single device. Depending on the type of cleaning agent, connections made of stainless steel can be used, making the manifold perfectly suited for the area of application.

Installation in wet areas

Because they are resistant to corrosion and are perfectly sealed, clean style valve manifolds can be installed closer to the cylinders/actuators for quicker actuation in wet areas. The recommended valves of the new SY valve series are available with either the rubber seal spool or the metal steal spool. The metal spool valves in particular are suitable for extremely high operating frequencies and operating pressures of up to 10 bar. Tests at SMC have proven that their service life can reach up to 200 million switch cycles.

The valves are extremely efficient when it comes to power consumption: in the energy-saving model, each coil requires only 0,1 W to hold the spool in a switched state. SMC also offers the option of valve manifolds with back pressure check valves, which prevent the cylinder from malfunctions caused by the exhaust air from other valves.

For more information contact SMC Pneumatics South Africa, +27 (0)11 100 5866, sales@smcpneumatics.co.za, www.smcpneumatics.co.za



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