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Technical Article

3 Way Auto-reflux Valve Application and Features

3 Way Auto-reflux Valve concept There are many types of auto-reflux valves. The 3 way auto-reflux valve we have today has three ports, one in and two out, (left in, right and bottom). Unl…

3 Way Auto-reflux Valve Application and Features

April 23, 2019

Use of automatic recirculation valve

The automatic recirculation valve is mainly installed at the outlet of the centrifugal pump. When the centrifugal pump outlet flow is lower than the minimum flow, the pump protection valve i…

Use of automatic recirculation valve

April 22, 2019

Precautions when using back pressure valve

Precautions when using back pressure valve Avoid resonance with the system. When used with a pulsation damper, the pulsation damper should be placed between the pump and the back pre…

Precautions when using back pressure valve

April 12, 2019

Automatic recirculation valve escorts safe operation of centrifugal pumps

The automatic recirculation valve escorts safe operation of centrifugal pumps. The pump is the core device of the fluid industry, acting like the heart of the human body, powering the fluid …

Automatic recirculation valve escorts safe operation of centrifugal pumps

April 11, 2019

Pump protection valve function and working principle / how to choose

The automatic recirculation valve is also called the boiler feed water pump recirculation valve. In the power plant it is installed at the outlet of the feed pump and connected to the deaera…

Pump protection valve function and working principle / how to choose

April 11, 2019

Automatic recirculation valve Installation and maintenance

Before the Automatic Recirculation Valves is shipped all connections (flanges or weld connection.) are covered with plastic caps. This way the valve internals are protected against the ingre…

Automatic recirculation valve Installation and maintenance

December 13, 2018

Automatic Recirculation Valves Installation

The DATIAN automatic recirculation valves are best installed directly on the outlet of the pumps for which they are meant. The valve layout is mainly based on the pump curve. Ensure that the…

Automatic Recirculation Valves Installation

December 13, 2018

What Is A Centrifugal Pump Minimum Flow Bypass Line?

Centrifugal pumps rely on fluid to keep cool and lubricated while operating. They also rely on the fact that discharged fluid has somewhere to go. But what if the process dictates it needs o…

What Is A Centrifugal Pump Minimum Flow Bypass Line?

June 20, 2018

Three protection ways for pump

Continuous circulating system Minimum requirement of continuous circulating system pump is unrelated with the discharge of Process flow changes system. After setting of minimum flow, thro…

Three protection ways for pump

May 30, 2018

Centrifugal pumps require protection

If you use centrifugal pumps for any liquid-boiler feed water, condensate, or process fluids, a significant investment has been made in the pump, driver and related controls. Minimum flow pr…

Centrifugal pumps require protection

May 30, 2018

What are ARV or ARC valves

ARV valve stands for Automatic Recirculation Valve. An automatic recirculation valve is a multifunctional valve whose primary purpose is to ensure that a pre-determined minimum flow is assur…

What are ARV or ARC valves

May 30, 2018

Pump Run Out Protection

Normally pump protection valves are limited to minimum flow protection; however, severe damage can occur to the pump and driver by exceeding the intended operating range of the pump. Dama…

Pump Run Out Protection

May 22, 2018

Automatic Recirculation Valves Start Up

Automatic recirculation valves Before start-up all lines must be flushed and the medium must be free from solids. Our valves are not designed to handle these. The lifetime of the valves will…

Automatic Recirculation Valves Start Up

May 09, 2018