China Ductile Iron Butterfly Valve Factory - Factory, Suppliers, Manufacturers from China

China Ductile Iron Butterfly Valve Factory, , , ,. The product will supply to all over the world, such as Europe, America, Australia,, ,, .

What is a butterfly valve?

The butterfly valve was invented in the United States in the 1930s. It was introduced to Japan in the 1950s and was not widely used in Japan until the 1960s. It was not popularized in my country un...
Installation of common valves---TWS Valve

A.Gate valve installation Gate valve, also known as gate valve, is a valve that uses a gate to control the opening and closing, and adjusts the pipeline flow and opens and closes the pipeline by ch...
What Are The Most Widely Used Areas Of The Valve

Valves in the various industries in a wide range of applications, mainly in the petroleum, petrochemical, chemical, metallurgy, electric power, water conservancy, urban construction, fire, machiner...
Glorious Ending! TWS Shines at the 9th China Environment Expo

The 9th China Environment Expo was held in Guangzhou from September 17 to 19 at Area B of the China Import and Export Fair Complex. As Asia’s flagship exhibition for environmental governance,...
Practical knowledge of valves

Valve foundation 1. The basic parameters of the valve are: nominal pressure PN and nominal diameter DN 2. Basic function of the valve: cut off the connected medium, adjust the flow rate, and change...
Butterfly Valve Introduction

Introduction: A butterfly valve is from a family of valves called quarter-turn valves. In operation, the valve is fully open or closed when the disc is rotated a quarter turn. The “butterfly...