Keystone 990 - Factory, Suppliers, Manufacturers from China

Keystone 990, , , ,. 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...
Can globe valves and gate valves be mixed?

Globe valves, gate valves, butterfly valves, check valves and ball valves are all indispensable control components in various piping systems today. Every valve is different in appearance, structure...
TWS Backflow Preventer

Working Principle of Backflow Preventer TWS backflow preventer is a mechanical device designed to prevent the reverse flow of contaminated water or other media into a potable water supply system or...
Safeguard Your Water Supply with Our Advanced Backflow Preventers

In an era where the quality of water is of paramount importance, protecting your water supply from contamination is non-negotiable. Backflow, the unwanted reversal of water flow, can introduce harm...
Butterfly valves: Difference between Wafer and Lug

Wafer type + Lighter + Cheaper + Easy installation - Pipe flanges required - More difficult to centre - Not suitable as end valve In the case of a Wafer-style butterfly valve, the body is annular ...
The difference between OS&Y gate valve and NRS gate valve

1.The stem of the OS&Y gate valve is exposed, while the stem of the NRS gate valve is in the valve body. 2.The OS&Y gate valve is driven by the thread transmission between the valve ...