News
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Epoxy spraying and Halar coating
I. What is epoxy spray coating? Epoxy spray coating is a two-component coating with epoxy resin as the main film-forming substance. It is applied to the metal surface by spraying or brushing to form a protective layer. It is characterized by strong adhesion and excellent resistance to cathodic pe...Read more -
Ductile Iron Valves vs. Cast Iron Valves
1. What is Ductile Iron? Ductile iron is a type of iron that has enhanced strength and flexibility compared to traditional cast iron. This is achieved by adding small amounts of elements like magnesium to the iron during the smelting process. The result is a material that can withstand higher str...Read more -
Valve seals: How to distinguish and select PTFE, EPDM, and PFA valve seats?
1: What is the most essential difference between PTFE, EPDM and PFA materials? PTFE (Polytetrafluoroethylene): Commonly known as the king of plastics, it is a white solid with excellent chemical inertness and temperature resistance (-196℃~+200℃). It has an extremely low friction coefficient, but ...Read more -
Frequently asked questions about pipeline air release valve
1. Why do pipelines need to be equipped with air release valve? When pipes are filled with water, run, or drained, air can accumulate inside them. If it is not discharged, “air blockage” will be formed, which will reduce the water cross-section and increase energy consumption. In seve...Read more -
How to Choose the Right Butterfly Valve for Water Treatment
Water treatment facilities are instrumental in providing clean and safe water for many different application. Butterfly valves are one of the most important components in a water treatment facility as they are utilized to control water flow and the amount of chemicals distributed. The selection o...Read more -
Protection Grade IP
1. What does an IP protection level mean? IP (Ingress Protection) protection level is the dustproof and waterproof capability classification of electrical equipment defined by the international standard IEC 60529. It consists of “IP” followed by two digits: the first digit represents ...Read more -
TWS sends blessings during the Dragon Boat Festival to inherit culture and talk about ingenuity
1. What is Dragon Boat Festival? The fifth day of the fifth lunar month is the Dragon Boat Festival, also known as the Duanyang Festival, Wu Day Festival, May Festival, AI Festival, Dragon Boat Festival, Chongwu Festival, Wu Day Festival, and Summer Festival. The Dragon Boat Festival means R...Read more -
TWS made a stunning appearance at the 2026 Shanghai International Pump and Valve Exhibition, and the hard-core product matrix came to a successful conclusion
From June 9 to June 11, 2026, the 14th Shanghai International Pump and Valve Exhibition was held grandly at the Shanghai National Convention and Exhibition Center. Tianjin Tanggu Water-Seal Valve Co,.Ltd made a grand appearance at booth 3H7100 with a full range of flagship products. With its exce...Read more -
Soft seal and hard seal of gate valve
1. What are the soft seal and hard seal of gate valve? Soft-sealed gate valves use non-metallic elastic materials such as rubber and PTFE as seals, which are soft and hard in conjunction with the metal valve seat. They rely on the elastic deformation of the sealing material to fill the gap and ac...Read more -
Supporting the century project of “Diverting the Yangtze River to the Huaihe River”, TWS provide “core” guarantee for water supply safety
As the “No. 1 Project” to alleviate water shortages in northern Anhui and eastern Henan, the construction progress of the Yangtze River Diversion Project to the Huaihe River has attracted much attention. Recently, as the project transitions from the construction phase to the operation...Read more -
TWS appeared at the 2026 China Water Expo (Hefei) and concluded successfully
Recently, the 2026 China Water Expo and Pump and Valve Exhibition concluded successfully at the Hefei Binhu International Convention and Exhibition Center. TWS made a wonderful appearance with a variety of innovative products. With its excellent technical strength and on-site professional explana...Read more -
TWS is about to make a grand appearance at the 14th Shanghai International Pump and Valve Exhibition
The 14th Shanghai International Pump, Pipe and Valve Exhibition (referred to as: Shanghai International Pump and Valve Exhibition) will be held grandly at the Shanghai National Convention and Exhibition Center (Hongqiao) from June 9 to 11, 2026. The 60,000 square meter exhibition scale will bring...Read more
