What does QD mean in valve type QMD341Y 0 1C?

Here are some of the well-known brands recognized in the valve industry, which are widely recognized and have a high reputation. While rankings may vary depending on time and market conditions, the following brands are generally considered to be among the top brands in the valve industry:

The following influential first-line brands of water system valves and industrial valves can be used as a reference, but for reference only: Suzhou Neway Valve, Shanghai Guanlong Valve, Shanghai Qizhong Valve, Sanhua, Suyan, Shentong, Su Valve, Nanfang, Jiang.

First, the word Yao. The above manufacturers are only estimates and references, and the specific situation may vary or fluctuate at any time due to changes in a series of factors such as changes in the market, the size of the competition pattern, and the stability of product quality. As an indispensable key device in industrial production and civil facilities, the quality and reputation of the valve brand directly affect the satisfaction and trust of users.

These brands are known in the valve industry for their innovative technology, high-quality products and reliability. It is important to note that the market and industry are evolving rapidly, and different rankings may vary depending on time and region. For the most up-to-date ranking information, it is recommended to refer to industry reports, professional institutions or market research data for more detailed and accurate information.

Carbon steel worm gear flange butterfly valve. D-Butterfly Valve.

The desulfurization handle clamps the ball disc of the butterfly valve.

Desulfurization to clamp butterfly valve, valve plate.

It is only known that it is the handle to clamp the butterfly valve.

V-Ball Valve, Flanged Connection, Straight-Through Carbon Steel Fixed Ball Valve, Nominal Pressure MPa.

The V-type ball valve is a fixed ball valve, and it is also a single seat sealed ball valve, the adjustment performance is the best among ball valves, the flow characteristics are equal percentage, and the adjustable ratio is up to 100:1. It has a shearing effect between the V-cut and the metal seat, which is especially suitable for media containing fibers, fine solid particles, slurries, etc.

Valve D37L1X: D represents butterfly valve, 3 represents worm gear transmission, 7 represents clamp type, 1 represents mid-junction type, and X represents sealing surface material.

The valve (famen) is a control component in the fluid transfer system, which has the functions of shut-off, regulation, diversion, prevention of backflow, pressure stabilization, diversion or overflow pressure relief.

Valves for fluid control systems range from the simplest shut-off valves to the most complex valves used in automated control systems. Valves can be used to control the flow of various types of fluids such as air, water, steam, various corrosive media, slurries, oils, liquid metals and radioactive media.

According to the provisions of the "JB T 308-2004 valve model preparation method".

D-Butterfly Valve.

3== Worm gear drive.

7== Pair clamp type.

1== Mid-junction type.

x== Sealing surface material: rubber.

The difference between the D37L1X and the D371X is that the D37L1X disc is made of stainless steel and is more sealed (the seat is still rubber), while the D371X disc and seat are rubber sealed. See image below