Not Only Must You Be Able To Select High Platform Ball Valves, But You Must Also Be Able To Maintain Them.
What are the selection principles of Sanitary Ball Valve?
The closing part of the high platform ball valve is a sphere, which rotates around the center line of the valve body to achieve a valve that opens and closes. So what are the principles in our selection?
The selection principles of high platform ball valves are specifically introduced as follows:
1. For the main pipelines of oil and natural gas transmission, if the pipelines need to be cleaned, choose a high platform ball valve with a full-diameter and fully welded structure;
2. For the pipelines and storage equipment of refined oil, choose a high platform ball valve with flange connection.
3. For city gas and natural gas pipelines, choose floating ball valves with flange connection and internal thread connection.
4. For the oxygen pipeline system in the metallurgical system, it is advisable to use a strictly de-
5. For the pipeline system and device of low-temperature medium, it is advisable to use a low-temperature ball valve with a valve cover.
6. For the pipeline system of the catalytic cracking unit of the refinery unit, a lifting rod ball valve can be selected.
7. In the devices and piping systems of corrosive media such as acid and alkali in chemical systems, all stainless steel ball valves with polytetrafluoroethylene as valve seat seals.
We must maintain the habit of frequent maintenance, cleaning and maintenance during the use of high-platform ball valves, and hope that everyone will use the equipment safely. So how do we extend the service life of high-platform ball valves in order to extend the service life of high-platform ball valves?
The methods to extend the service life of high-platform ball valves are as follows:
1. The storage environment of the ball valve should be paid attention to. It should be stored in a dry and ventilated room, and both ends of the passage should be blocked.
2. The ball valve should be checked regularly, and the dirt on it should be removed, and anti-rust oil should be applied to its surface.
3. After the ball valve is installed and applied, it should be regularly inspected to ensure its normal operation.
4. Check whether the sealing surface of the ball valve is worn, and repair or replace it according to the situation.
5. Check the wear of the trapezoidal thread of the valve stem and the valve stem nut, whether the packing is outdated and invalid, etc., and make necessary replacements.
6. The sealing performance of the ball valve should be tested to ensure its performance.
7. If the handwheel is lost, it should be replaced in time, and it cannot be replaced with an adjustable wrench.
8. The ball valve in operation should be intact, with complete bolts on the flange and bracket, intact threads, and no looseness.