The pneumatic ball valve can be tightly closed by rotating 90 degrees with the pneumatic actuator using the air source and with a very small torque. The completely equal inner cavity of the valve body provides a straight-through flow path with very little resistance for the medium. It is generally believed that ball valves are more suitable for direct opening and closing, but recent developments have designed ball valves to be used for throttling and flow control. The main feature of a ball valve is its own......　

A pneumatic ball valve is a ball valve equipped with a pneumatic actuator. The execution speed of pneumatic actuators is relatively fast, with a fast switching speed of 0.05 seconds per time. Therefore, they are usually also called pneumatic quick shut-off ball valves. Pneumatic ball valves are usually equipped with various accessories, such as solenoid valves, air source treatment three-piece sets, limit switches, positioners, control boxes, etc., to achieve local control and remote centralized control......　

Pneumatic ball valves have a compact structure, reliable sealing, simple design, and are easy to maintain. The sealing surface and the ball surface are often in a closed state, making them less prone to erosion by the medium. They are easy to operate and maintain, and are suitable for general working media such as water, solvents, acids, and natural gas. They are mainly used to cut off or connect the medium in pipelines and can also be used for the regulation and control of fluids. Pneumatic ball valves compared with other types of valves......　

V-type ball valves belong to fixed ball valves and are also single-seat sealed ball valves. Their regulating performance is among the best in ball valves. The flow characteristic is equal percentage, and the adjustable ratio can reach 100:1. Its V-shaped cut has a shearing effect with the metal valve seat, making it particularly suitable for media containing fibers, tiny solid particles, slurry, etc. The ball valve has the same action of rotating 90 degrees......　

The O-type fixed ball valve adopts a fixed ball design. The relatively moving parts are all made of self-lubricating materials with extremely low friction coefficients, thus resulting in a small operating torque. In addition, the long-term sealing of the sealing grease makes the operation more flexible. Features: 1. The metal hard seal O-type fixed ball valve adopts a bidirectional metal movable sealing structure, which has an automatic compensation function and excellent sealing performance......　

During the production and manufacturing process of stainless steel ball valves, they are extremely prone to contact with other metal iron products. To ensure that stainless steel valves do not rust all the time, a relatively simple method is to follow the process below. First: After the raw material is finished and pickled, it must be thoroughly rinsed. If there are sand holes or perforations, argon arc welding should be used for gas shielded welding. Then polish and then perform solution treatment......　

Manual ball valves are a relatively new type of ball valve category. They have some unique advantages due to their own structure, such as no friction during opening and closing, the seal is not prone to wear, and the opening and closing torque is small. This can reduce the specifications of the actuator that is matched. Equipped with a multi-turn electric actuator, it can achieve the regulation and tight cut-off of the medium. It is widely applicable to working conditions such as petroleum, chemical industry, urban water supply and drainage, etc., where strict cut-off is required......　

Ear shaft design - Support for the top and bottom of the electric ball valve. The design of the ear shaft allows the part of the valve to be closed and disconnected at full series pressure without causing any danger. The valve cannot be reversed in the pipeline. All concentricity and mirror-like flatness ensure that the ball operates easily, smoothly and leak-proof. Double sliding seats, 30-ring each......　

Manual ball valves emerged as a type of valve in the 1950s. Over the past half-century, ball valves have developed into a major type of valve. Ball valves are mainly used to cut off or connect media, and can also be used for regulating and controlling fluids. V-type ball valves can perform relatively precise flow regulation and control, while three-way ball valves are used for distributing media and changing the direction of the medium flow. Manual ball valve main......　

Execution standards for butt-welded ball valves: 1. Design and manufacture: GB12237, API608, API 6D, JPI 7S-48, BS5351, DIN3357. 2. Flange dimensions: JB/T74 ~ 90 (JB74 ~ 90), GB9112 ~ 9131, HGJ44 ~ 76, SH3406, ANSI B16.5, JIS B2212 ~ 2214, NF E29-211, DIN2543......　

Introduction to performance specifications of butt-weld ball valves: Nominal diameter mm DN15-DN300; Material code: C P R Main components: Valve body WCB ZG1Cr18 Ni9Ti ZG1Cr18Ni 12Mo2Ti; Sphere 2Cr13 1Cr18Ni9Ti 1Cr18Ni12MoTi; Valve stem 2Cr13, 1Cr18Ni9Ti, 1Cr18Ni12MoTi; Sealing ring reinforced polytetrafluoroethylene aligned polystyrene metal seal......　

Technical parameter introduction of electric ball valve: Working environment: Ordinary type. It does not contain corrosive or explosive gases. Relative humidity: ≤60℃. Relative humidity: ≤ 90% (at 25℃). Altitude ≤3000m. Power supply pressure: 220, frequency: 50Hz. Output torque: M≥40N.m. Load cycle rate: 10%. Full excitement time: ≤3.5 seconds......