Sanitary Ball Valve is a widely used ball valve. The closing part of the high platform ball valve is a sphere, which rotates around the center line of the ball valve body to achieve the function of opening or closing. In the pipeline, it can change the flow direction and cut-off function of the medium. When facing different pipeline projects, what principles do we need to know when choosing? Let's share and understand through the following aspects:

◎ For the transportation pipeline and storage equipment of finished oil, choose a high platform ball valve with flange connection type

◎ For the pipeline project of low temperature medium, choose a low temperature ball valve with a valve cover

◎ In the chemical pipeline system with corrosive media such as acid and alkali, choose a stainless steel ball valve with a valve seat sealing ring

◎ For the pipeline of city gas and natural gas, choose a floating ball valve with flange connection and internal thread connection

◎ For the pipeline system of the catalytic cracking unit of the refinery unit, a lifting rod ball valve can be selected.
◎ For the main pipelines of oil and natural gas, if the pipelines need to be cleaned, a high-platform ball valve with a full-diameter and fully welded structure should be selected;

Sealing performance is very important for high-platform ball valves or any valves. The effect is affected by the sealing performance during use. How to seal the high-platform ball valve will be briefly shared:

The material selection and form of the high-platform ball valve are two important factors affecting its sealing performance:

1. The common pre-tightening pressure ratio of the sealing seat is about 0.1 nominal pressure, not less than 1.02mpa. The adjustment of the pre-tightening pressure ratio of the sealing seat is determined by the thickness of the sealing gasket. The sealing performance is related to the error size of the gasket thickness and needs to be reasonably adjusted according to the usage.

2. The sealing performance of the ball valve is related to the structure. Different structures will produce different sealing effects. Only by selecting suitable tight sealing materials and reasonable structural design can the ball valve have good sealing performance.