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Combine coaxial valves with a pressure reducing valve

Small, compact, and efficient up to 130 bar

What should you do if the counter spindle of a CNC machine requires less pressure than the main spindle, but the pump runs continuously without regulation? A supplier to the watch industry was faced with this problem. For machining brass, cutting oil was to be supplied five times per part cycle for one and a half minutes via an on/off valve. However, the pressure was too high for machining on the counter spindle. A relatively expensive pump control system was to be avoided, so those responsible sought a solution at the "valve level."

So what to do? The best thing to do is ask the inventors at RSG-Ventilutions. "When the customer described the situation to us, we knew immediately that we were facing another interesting challenge," smiles Vitali Gerlach from Technical Sales. As always, the first step was to analyze and understand the customer's problem in detail. Once the task had been clearly defined, the right idea was quickly found. To reduce the pressure for supplying the counter spindle, the engineers decided to install externally controlled coaxial valves together with a pressure reducing valve in a valve block. The choice fell on the block from the 280-X series with a nominal diameter of DN10. The pressure reducing valve is from the 786-P DN12 series.

Rapid development thanks to Ventilutions

And the result? The redesign of the valve block solved the problem. And the customer significantly improved the productivity, efficiency, and availability of his machine. Now he wants to equip other machines with it.

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Export / Technical Sales

Vitali Gerlach

Graduate industrial engineer (university of applied sciences)