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Frequently Asked Questions

Here you will find answers to the questions we are frequently asked. If your question is not included, simply send us an email or give us a call.

Disc Check Valve

A disc check valve is a non-return valve designed for installation between two flanges (wafer type). A spring-loaded disc inside the valve opens only in the flow direction and closes immediately when the flow decreases or threatens to reverse, thereby preventing backflow.

Both the RV108 and RV110 are high-quality disc check valves. A key distinguishing feature of the RV110 is its four grounding lugs, which provide an additional safety function. The RV110 can also typically be configured for a wider range of pressure ratings.

Spring-loaded means the valve disc is actively held closed by a spring. This enables very fast and secure sealing, independent of the installation position, and ensures reliable operation even at very low differential pressures.

These valves are particularly well-suited for clean liquids and gases. For media containing solids or with a high tendency for fouling, other designs, such as swing check valves, can sometimes be the better choice.