China Worm - China Factory, Suppliers, Manufacturers

China Worm, , , ,. The product will supply to all over the world, such as Europe, America, Australia,, ,, .

Inspection items for dual plate type check valves

Inspection items, technical requriements and inspection methods for wafer dual plate check valves
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 ...
Overview of soft seal gate valve

Soft seal gate valve, also known as elastic seat gate valve, is a manual valve used to connect pipeline media and switches in water conservancy engineering. The structure of the soft seal gate valv...
Valve painting identifies the limitations of valves

Valve painting identifies the limitations of valves Tianjin Tanggu Water-Seal Valve Co., Ltd (TWS Valve Co., Ltd) Tianjin，CHINA 3rd，July，2023 Web: www.tws-valve.com Painting to identify valves...
Pressure test method for industrial valves.

Before the valve is installed, the valve strength test and valve sealing test should be performed on the valve hydraulic test bench. 20% of low-pressure valves should be inspected randomly...
History of the Development of China's Valve Industry (2)

The initial stage of the valve industry (1949-1959) 01Organize to serve the recovery of the national economy The period from 1949 to 1952 was the period of my country’s national economic reco...