I. What is UL certification? Why does the valve need it?
UL (Underwriters Laboratories) is a world-renowned independent safety certification organization. In the North American market, UL certifica...
Tianjin Tanggu Water-seal Valve was established in 1997, which is a professional manufacture that integrates design and development, production, installation, sales and service.
The main products i...
Let’s introduce what is the difference between a globe valve and a gate valve.
01
Structure
When the installation space is limited, pay attention to the selection:
The ga...
The continuous development of the valve industry (1967-1978)
01 Industry development is affected
From 1967 to 1978, due to the great changes in the social environment, the development of the valve ...
The flow characteristics of the regulating valve are mainly four kinds of flow characteristics such as linear percentage fast opening and parabola. When installed in the actual control process, the...
Manufactured valves must undergo various performance tests, the most important of which is pressure testing. Pressure test is to test whether the pressure value that the valve can withstand meets t...