The Main Role Of The Ball Valve In The Family

As a Flow Measurement Instrument, we will discuss The Main Role Of The Ball Valve In The Family with you.

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The "Ball Valve" used in the home improvement process has the following two main functions:

Flow Measurement Instrument

First, cut, distribute and change the medium

The "ball valve" is used in the medium pipe to regulate and control. It is generally installed horizontally in the pipe and has the function of distributing, cutting and changing the flow direction of the medium. The "ball valve" only needs to be rotated 90° to achieve a tight seal. Its valve body can be used as a whole or separately. The sealing surface of the "ball valve" is usually in a state of being closed with the spherical surface, so it is not easily eroded by the medium.

Second, security

The ball valve used in the radiator heating system and the floor heating system serves as the primary safety barrier for the radiator end and the floor heating end, which can prevent the medium pressure in the pipeline or the device from exceeding the specified value in time, thereby achieving the purpose of safely protecting the entire heating system. 

The main selection principle of the ball valve:

1. When flow adjustment is required, a worm-gear, pneumatic or electric adjustment ball valve with a V-shaped opening can be selected.

2. The main line for the transportation of oil and natural gas, the pipe that needs to be cleaned, and the underground pipe, the ball valve with full-diameter and all-welded structure; the ball valve buried in the ground and selected for full-diameter welding or flange connection ; branch pipe, flange connection, welded connection, full diameter or reduced diameter ball valve.

3. On the pipeline of city gas and natural gas, use the floating ball valve with flange connection and internal thread connection.

4. In the oxygen pipeline system in the metallurgical system, a fixed ball valve that has undergone strict degreasing treatment and flange connection should be used.

5. For low-temperature medium piping systems and devices, a low-temperature ball valve with a bonnet should be used.

6. The lifting rod type ball valve can be selected on the piping system of the catalytic cracking unit of the refinery.

7. In the chemical system, such as the acid and alkali corrosive medium device and piping system, it is preferable to use all-stainless steel ball valve made of austenitic stainless steel and PTFE as the seat seal.

8. Metal-to-metal sealed ball valves are available on the piping systems or devices of high-temperature media in metallurgical systems, power systems, petrochemical plants, and urban heating systems.

9. The conveying pipeline and storage equipment of the refined oil is selected from flanged ball valves.