This paper will introduce the characteristics, structure, working principle, application and maintenance of the three-piece internal screw ball valve from the following aspects.

2.Specification:

FABIA Valve Parameter List
Valve type:	Pneumatic two-way ball valve
Size:	1/8 inch ～ 8 inch
Material:	WCB,Q235B,2507,A105,CF8(304),CF8M(316),CF3M (316L),CF3(304L),PVC,ZG1Cr18Ni9Ti,ZG1Cr18Ni12Mo2Ti
Connection type:	Welded connection/flange connection/thread connection/clamp connection
Driving model:	Manual/Worm gear drive/Pneumatic/Electric
Pressure rating:	PN1.0～PN64,ANSI CLASS 150-900,JIS10-20K；
Temperature:	-196℃～540℃
Model:	FB-Q..........

3.Ball valve features:

Because polytetrafluoroethylene and other materials have good self-lubrication, and the friction loss with the ball is small, so the service life of the ball valve is long.
Pneumatic, electric and other driving mechanisms can be configured to achieve remote control and automatic operation.
Channel in the valve body is smooth and smooth, which can transport viscous fluid, slurry and solid particles.
Easy to install, can be installed in any direction in any part of the pipeline.

4.Working principle:

Working principle of the three-piece ball valve is to control the flow of the medium by rotating the ball.
When the valve is closed, the ball is tightly fitted to the seat to prevent media leakage.
When the valve is opened, the ball is rotated 90 degrees, and the medium can flow through the all-pass design of the ball.
Through manual, electric, pneumatic and other driving methods to control the rotation of the ball, so as to achieve the control of the medium.

5. Application:

Three-piece ball valve is widely used in petroleum, chemical, natural gas, pharmaceutical, food and other industries.
It can be used to control the flow of various media, such as water, oil, gas, steam, etc.
Because of its compact structure, easy maintenance and good corrosion resistance, it is widely used in various industrial fields.

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