3-piece Ball Valve's Detailed Classification Makes It Easier For Users To Choose

Because it's made of 3 Piece Ball Valve, it's also a subcategory of stainless steel valves. Quanyi Valve Co., Ltd., with years of experience in stainless steel valve sales, understands the market trends for stainless steel ball valves and has collected a wealth of technical information related to them. Today, we'd like to share some information with you!

First, let's discuss why stainless steel ball valves are so popular in the market. The key factor is price/performance. Ball valves are widely used in the manufacturing industry, primarily due to their applicability and practicality. Meeting these two requirements translates to high cost-performance. This is why stainless steel ball valves are such a popular choice.

Stainless steel ball valves offer a wide range of functions, applications, and adaptability. Stainless steel is corrosion-resistant and wear-resistant, making them very popular.

Because stainless steel ball valves are categorized into a variety of categories, many manufacturers have no difficulty selecting the right stainless steel ball valve for their needs, significantly improving efficiency.

Next, we'll explain the classification of stainless steel ball valves in detail:

Stainless steel ball valves are categorized by their structural type: floating ball valves, fixed ball valves, and spring ball valves. These three types of stainless steel ball valves have certain differences. Please refer to the corresponding concepts for detailed analysis:

The ball of a floating ball valve floats. Under the pressure of the medium, the ball can move a certain distance and press tightly against the sealing surface at the outlet, ensuring a tight seal. While floating ball valves offer a simple structure and excellent sealing, the load of the working medium on the ball is entirely transferred to the outlet sealing ring. Therefore, it is important to consider whether the sealing ring material can withstand the working load of the medium. This structure is widely used in medium and low-pressure ball valves.

The ball of a trunnion-mounted ball valve is fixed and does not move under pressure. Trunnion-mounted ball valves all have a floating seat. Under the pressure of the medium, the seat moves, pressing the sealing ring against the ball to ensure a tight seal. Bearings are typically installed on the upper and lower shafts of the ball, resulting in low operating torque and suitable for high-pressure and large-diameter valves. To reduce ball valve operating torque and increase sealing reliability, oil-sealed ball valves were developed. A special lubricant is injected between the sealing surfaces to form an oil film, enhancing sealing while reducing operating torque. This makes them particularly suitable for high-pressure, large-diameter ball valves.

The ball of a ball valve is elastic. Both the ball and the seat ring are made of metal. The sealing pressure is very high, so relying solely on the pressure of the medium itself is insufficient to achieve sealing, requiring external force. This valve is suitable for high-temperature, high-pressure media. The elastic ball valve achieves its elasticity by creating an elastic groove at the lower end of the inner wall. When closing the passage, the wedge-shaped head of the valve stem expands the ball and presses it against the valve seat, achieving a seal. Loosening the wedge-shaped head before rotating the ball causes it to return to its original shape, creating a small gap between the ball and the valve seat, reducing friction on the sealing surfaces and operating torque.

Stainless steel ball valves can be categorized by their channel locations as straight-through, three-way, and right-angle types. The most well-known of these is the three-way stainless steel ball valve, which is further divided into T- and L-type types. The T-type allows three orthogonal pipes to connect and disconnect a third channel, serving as both diverter and combiner. The L-type can only connect two orthogonal pipes and cannot simultaneously maintain the connection of the third channel, serving only as a distributor. The stainless steel three-way ball valve utilizes an integrated structure with four-sided seat sealing, minimal flange connections, and high reliability. The lightweight design of the three-way ball valve core offers T- and L-type designs for long service life, high flow capacity, and low resistance. Ball valves are categorized by their operating mode into single-acting and double-acting types. The single-acting type maintains the desired control system state in the event of a power failure.

The above is a stainless steel ball valve manufacturer's explanation of the classification of stainless steel ball valves. While this is certainly a limited overview, we welcome all stainless steel ball valve users to discuss your options!