Automatic Recirculation Check Valves are required to ensure the minimum flow rate of a pump at all times. This protects the pump against superheating, cavitation and finally, destruction. When the flow through the pump falls below a certain level the bypass system opens and the fluid will be recirculated providing the required minimum flow for the pump.
Our Automatic Recirculation Check Valves work in a modulating way. Should the discharge increase through the following processes, then the amount of fluid recirculated by the bypass is automatically reduced - and vice versa. This increases the efficiency of the entire system and optimises the economy in the low-load operation.
The pump protection works entirely over the inside valve technology. The volume by which the process decreases is measured independent of the pressure - the amount returned over the bypass is adapted automatically.
Reduced weight and overall dimensions for connection system
No need to disconnect recirculation line for replacement of ARC Valve wear bypass parts, valve can stay in place, for both sketches
Patented bypass system allowing to handle a large range of pressure and flow with perfect tightness
Protected against particles due to the fact that the seat is permanently covered by bypass valve
Valve and bypass body made of one piece, prevents leakage
Cost reduction by reduced dimensions through tangential bypass branch and easy machining
Wear parts replacement without disconnecting the valve from the line results maintenance cost reduction