ALL BLOGS

Common faults of gate valves and their solutions

1. Leakage at the gate of the gate valve The packing gland is too loose to evenly tighten the nut for the compression packing gland.If the number of p ...

Forged steel gate valve use characteristics and installation

FORGED STEEL GATE VALVE FEATURES The forged steel gate valve has low flow resistance. The inner medium passage of the valve body is straight through, ...

Model code of gate valve

The description of the gate valve type is based on the Chinese valve model. It does not include some of the latest gate valve products developed and p ...

Why natural gas pipelines must use forged steel ball valves

The natural gas pipeline forged steel ball valve is a forged steel structure, which is especially suitable for working conditions of gas, purified nat ...

Comparisons of Pneumatic Ball Valves and Electric Ball Valves

The pneumatic ball valve consists of the ball valve and the pneumatic actuator. It generally needs to be used in conjunction with accessories inc ...

Float Ball Valve design feature

BOW-OUT PROOF STEM For the purpose of preventing the stem from flying off resulting in abnormal rising of the inner pressure of valve,shoulder is fixe ...

Mr.Naoki Sawamur visits Datian Valve factory

On November 14, 2019, the famous Japanese valve manufacturer sawamura Valve Co., Ltd. and its president, Mr. Naoki sawamura, came to our com ...

An Analysis Of Flow Characteristics Control Valves and Flow Optimization Computation of a Perforated Sleeve Valve

As an important element in the flow control system, the control valve adjusts the medium flow rate of the system by changing its own resistance charac ...
Valve products have been widely applied in petroleum, chemical engineering, nuclear power, metallurgy, electric power, hydraulic power, large coal chemical industry and other industries. Total quantity of valve products is constantly growing. Valve technology is developing and application of valve is also expanding continuously. Valve standards relative to valve products are showing their importance in at present.

Usage of Valve Standards in China

Valve products have been widely applied in petroleum, chemical engineering, nuclear power, metallurgy, electric power, hydraulic power, large coal che ...
About Control Valve

About Control Valve

A control valve is a valve used to control fluid flow by varying the size of the flow passage as directed by a signal from a controller.[1] ...
What Is A Centrifugal Pump Minimum Flow Bypass Line?

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 ...

Cavitation in Control valve

From Wikipedia, the free encyclopedia Cavitation is the formation of vapour cavities in a liquid, small liquid-free zones ("bubbles" or "voids"), that ...
Pump Run Out Protection

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 inten ...

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 handl ...

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 ma ...
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 backpressure valve t ...
Use of automatic recirculation valve

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 m ...
3 Way Auto-reflux Valve

3 Way Auto-reflux Valve Application and Features

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, ri ...
Scroll to Top