What is an ARV valve?

What is an ARV valve?

An automatic recirculation valve (ARV) diverts fluid flow from the discharge of a centrifugal pump through a bypass circuit to ensure a minimum flow rate is maintained. This is vital for all variable-flow centrifugal pumps. While the primary function of an ARV is to protect a centrifugal pump from cavitation, overheating and running dry, the valve also serves several other functions.

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CNC machine tools ,large vertical lathes, drill press, milling lathe grinding machine , Welding machine , separate metal working workshops and many general machine tool etc.

Multiple tests

Material analysis, PMI Material analysis. Chemical analysis. Low temperature test, Tensile Test ,Impact test, Hardness test. Wall thickness test, roughness test. Torque test. NDT Inspection (MT,PT,UT,RT). HIC test ,SSC test . Intercrystalline corrosion Test ,Uniform corrosion Test.

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The company is the first one to pass ISO 9001(2008),ISO 14001 ,OHAS 18001 international quality system certificate, China pressure pipe safety registration certificate (AZ), European Union safety registration certificate (CE0036), and American Petroleum Institute Certificate (API 6D) and (API607) .

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We are one of the member unit of China Valve Association as well as China Gas Association, member unit of first class supplying network of CNPC and member unit of fittings supplying network of State Power Corporation.

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EDVC VALVE CO.,LTD.is a specialized in valve manufacturing enterprise with more than 15 years of history.We main produce Top Entry Ball Valve, Fully Welded Ball Valve, Arc Valve, Aluminum Bronze Valve, Automatic Recirculation Valve, Orbit Ball Valve, Safety Valve, Globe Valve, Tilting Disc Check Valve and Rising Stem Ball Valve etc.


The products have been exported to Austria, France, Germany, United Kingdom ,America, Middle East and Asia, Africa . areas and countries. Moreover, the products are widely used in the fields of oil & gas, Oil refinery, Petrochemical,power station ,Sewage treatment, pharmacy, Paper mills, pipeline industry , mining industry , chemical industry and environmental protection.

We are a professional manufacturer of valves in China, with the aim of "providing the first class products and services". On behalf of all of the members at EDVC Valve, we thank you for the opportunity to earn your business.

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Frequently Asked Question

Do you have any question?

Operation of a ARV Valve. The heart of the recirculation valve is a main flow sensing check valve disc, which is flow sensitive, not pressure sensitive. The disc modulates to the demand for process flow at the same time helping ensure a minimum flow through the pump.

Automatic recirculation valves, sometimes referred to as pump protection valves or minimum flow valves are installed on the outlet of a centrifugal pump discharge line. Their purpose is to prevent the pump from overheating by ensuring that there is a minimum flow through the pump at all times.

Minimum Flow or Automatic Recirculation Valves automatically protect centrifugal pumps during low load operation. As the pump's load drops below a preset flow rate, the valve's disc moves towards its seat and causes the bypass bush to open a bypass flow path. The pump minimum flow rate is thus reached and maintained.

The automatic circulation valve is self-contained and does not require manual operation. Automatic recirculation valve, also known as pump protection valve or minimum flow valve, is used for automatic recirculation of the minimum flow of the centrifugal pump to prevent damage to the centrifugal pump due to overheating, noise, and vibration under low load.

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