ZDL Petrochemical Automatic Recirculation Valve / Multifunctional Control Valve

                                                            ZDL Automatic recirculation valve

EDVC of  automatic recirculation valve is a kind of pump protection device. It automatically protects the centrifugal pump when a pump body occurs cavitation damage or unstable (especially conveying hot water at low load operation). Once pump flow is lower than the preset flow, bypass can completely open to ensure the minimum required flow pump. Even running fully closed, the main flow is zero, the minimum flow can also discharge from the bypass.

Lution For Pump Protection:

The modern industrial equipment process request centrifugal pump basically works under the condition of variable flow.

An automatic recirculation valve (ARC valve) is a multifunctional valve whose primary purpose is to ensure that a pre-determined minimum flow is assured any times through the centrifugal pump. This is very important, because centrifugal pumps would suffer from overheating and cavitation, it can be permanently damaged if the pump run dry.

Through many years of research and development, continuous innovation and practice,  EDVC valve Co. research ZD series Automatic recirculation control Valve, to protect centrifugal pump from overheating, serious noise, unstable and erosion's damage under low load operation. As long as the flow rate of the pump valve below a certain value, the bypass backflow line will automatically open to ensure the necessary minimum flow of the pump.

Applications environment:

Chemical industry
Petrochemical industry
Steel factor
Fire protection system
Traditional power plant
Paper-making industry
Shipment/shipping
environmental protection industry