News - China Donjoy Technology

Frequently Asked Questions (FAQ)

August 31, 2022

You will find the answers to questions we are often asked by our customers about Sanitary products (santiary valves , santiary pumps and fittings ),We hope they are useful. If you are looking for other information about Donjoy, please feel free to contact us. We will be happy to service for you.

Centrifugal pump

July 30, 2022

Question 1: What is Centrifugal pump ? Answer: Centrifual pump is a kinds of Sanitary pump , it refers to a pump that transports liquid by the centrifugal force generated by the rotation of the impeller.

Self-priming pump

July 30, 2022

Question 1: What is Self-priming pump? Answer: Self-priming pump is a self-priming centrifugal pump. It has the advantages of compact structure, convenient operation, stable operation, easy maintenance, high efficiency, long life and strong self-priming ability.

Lobe pump

July 30, 2022

Question 1: What is lobe pump ? Answer ： Lobe pump(rotor pump) refers to a pump that changes the working volume through the relative movement between the rotor and the pump body, thereby increasing the energy of the liquid. The rotary lobe pump is a rotary positive displacement pump with positive displacement properties and its flow does not change with back pressure changes.

What is a pneumatic control valve?

April 27, 2022

With the development of human social productive forces, the development of regulating valves has gone through a long period of time.

Which type of valve does the diaphragm valve belong to? How to choose correctly?

April 20, 2022

Diaphragm valve is a clamping valve, which is mainly used for opening and closing on the pipeline.

What are the characteristics of the diaphragm valve?

April 13, 2022

The most prominent feature is that the diaphragm valve separates the inner cavity of the lower valve body from the inner cavity of the upper bonnet

Three-way globe valve structure principle

April 11, 2022

The body material of the three-way globe valve is divided into cast steel or stainless steel, which is suitable for occasions under various working conditions;

Do you have to choose between angle valve and ball valve in toilet or do you have to have both?

March 28, 2022

Ball valves are generally used as the main valve for household water intake. The ball valve is mainly used to cut off, distribute and change the flow direction of the medium in the pipeline.

Ball valve installation and use

March 17, 2022

Preparation before ball valve installation:1) The front and rear pipes should be coaxial, and the sealing surfaces of the two flanges should be parallel. The pipeline should be able to bear the weight of the ball valve, otherwise there must be proper supports on the pipeline.

Introduction of three-way globe valve

March 11, 2022

The body material of the three-way globe valve is divided into cast steel or stainless steel, which is suitable for occasions under various working conditions;

Basic performance of safety valve and terms of safety valve

March 03, 2022

Safety valves are used on pressurized equipment, containers or pipelines as overpressure protection devices.

News Classification

Company news

Exhibition News

Industry News

Hot News

Donjoy's new development of big mixing proof valve are on the market!

How should I choose a centrifugal pump?

What is the working principle of a Twin Screw Pump?

Donjoy Technology was evaluated "2023 Provincial High -tech Enterprise Research and Development Center"

Product Categories

New product

STU Lobe pump

TU Lobe pump

Twin screw pump

Sine pump

Flexible impeller pump RX

Centrifugal pump

Self-priming pump

Emulsifying homogenizing pump

PMTU/PMZX Mixing pump

HHQ/HHZ Mixing pump

Constant pressure water supply system

Pump Series Accessories

Valve