A trunnion ball valve has additional mechanical anchoring of the ball at the top and the bottom, suitable for larger and higher pressure valves (say, above 10 cm and 40 bars). A floating ball valve is one where the ball is not held in place by a trunnion.

Ball valve Daily maintenance is very importance,With a long service life and maintenance-free period, it will depend on several factors: normal working conditions, maintaining a harmonious temperature/pressure ratio, and reasonable corrosion data. When the ball valve is closed.

There are Installation instruction and use for ball valve,before installation should check and confirm the environment’s conditions and take care for ball valve when operating it.1. Indoor equipment or outdoor applications with protection methods;2. Outdoor open-air installations, with wind, sand, r

There are five general body styles of ball valves: single body, three-piece body, split body, top entry, and welded. The difference is based on how the pieces of the valve—especially the casing that contains the ball itself—are manufactured and assembled.

Valves such as globe valve, check valve, gate valve, throttle valve and reducing valve all have directivity.If installed in the opposite direction, throttle valves' operation performance may be weakened and service life may be shortened; reducing valves may have no effect.

The valve is an important component of petroleum and chemical plants, and the successful operation of any device is inseparable from the correct selection of valves. Therefore, the valve selection is neither just considering the characteristics of the valve itself, nor just the professional design of pipes.

The comprehensive feature of the plug valve is that it has a long service life and high reliability. It is a good choice for many corrosive, abrasive, highly toxic, continuous operation media and devices, and has application advantages and extensive applications in the chemical industry.

The plug valve is a closing or plunger-shaped rotary valve that opens or closes by rotating the passage port on the valve plug 90° degrees or the same as the passage port on the valve body.Plug valve is difference from knife gate valve. The plug of the plug valve may be cylindrical or conical shape.

Plug valves are best suited for use as a globe and closing medium as well as for shunting, but can sometimes be used for throttling depending on the nature of the application and the erosion resistance of the sealing surface. It is also commonly used for media with suspended particles due to the wip

The structure of piston check valve is similar to globe valve,but these two kinds of have have some differences between globe valve and piston check valve,the operation of piston check valve is flow automatic,the globe valve have a handwheel to operating,this is most difference of valve’s type.