Working Principle And Seven Advantages Of Fully Welded Sanitary Ball Valve
Sanitary Ball Valve consists of a fully welded valve body and a carbon reinforced Teflon gasket, which can operate for a long time under frequent operation, impurities and chemicals. The finely ground stainless steel ball of the fully welded ball valve can ensure free opening and closing and reliable operation for many years. The fully welded ball valve adopts a floating ball structure, and the elasticity of the inclined surface ensures that the sealing ring is pressed tightly on the ball. Even under unstable pressure, the fully welded ball valve can ensure tightness. The anti-leakage structure of the valve stem uses two "o" rings to make the valve stem rotate freely and seal tightly.
Working principle of fully welded ball valve
The fully welded sanitary ball valve will not have external leakage and other phenomena. Since the valve seat is composed of carbonized Teflon sealing rings and disc springs, it has strong adaptability to changes in pressure and temperature, and will not produce any leakage within the marked pressure and temperature range. The processing process of the fully welded ball valve ball is tracked and detected by advanced computer detectors, so the processing accuracy of the ball is high. Since the valve body material is the same as the pipeline material, there will be no uneven stress, no deformation due to earthquakes and vehicles passing through the ground, and the pipeline is resistant to aging. The body of the fully welded ball valve sealing ring is made of RPTFE with a carbon content of 25%, ensuring no leakage (0%). Direct buried welded ball valves can be buried directly underground. There is no need to build a large valve well. Only a small shallow well needs to be set up on the ground, which greatly saves construction costs and engineering time. The length of the valve body and the height of the valve stem can be adjusted according to the construction and design requirements of the pipeline. The processing accuracy of the ball is very precise, the operation is easy, and there is no adverse interference. The use of high-grade raw materials can ensure a pressure above PN25. Compared with the same specification products in the same industry, the valve body is small and the appearance is beautiful. Under the condition of ensuring the normal operation and use of the valve, the service life is more than 15 years.
Advantages of fully welded ball valves
1. Advanced valve seat of fully welded sanitary ball valves: The valve seat designed with many years of ball valve manufacturing experience has a low friction coefficient and a small operating torque. A variety of valve seat materials, wide range of applications.
2. Fully welded ball valve stem anti-flying structure: a step is set at the bottom of the valve stem, and the valve stem is installed from the inside of the valve body to prevent the valve stem from flying out.
3. Fully welded sanitary ball valve anti-static function: an anti-static spring is set between the ball and the valve body or valve stem to conduct static electricity generated during the switch action.
4. Fully welded ball valve fire-resistant structure: advanced fire-resistant design, after the fire, each leakage part is designed as flexible graphite filler or stainless steel sandwiched with graphite to meet the fire-resistant requirements and comply with the provisions of API6FA and API607.
5. When the fully welded ball valve handle is operated, a flat head valve stem is used, and the connection with the handle will not be misaligned, thereby ensuring that the switch state indicated by the handle is consistent with the valve. To prevent the valve switch from being misoperated, locking holes are set at the fully open and fully closed positions of the switch to ensure that the valve is in the correct position.
6. Fully welded sanitary ball valve fire-resistant structure: Advanced fire-resistant design, after a fire, the seals of each leaking part are burned to form a metal-to-metal seal, which complies with the provisions of API6FA and API607. For places with strict fire resistance requirements, the seals are sealed with flexible graphite fillers and stainless steel sandwiched graphite gaskets to ensure no leakage. (Please specify when ordering: full fireproof type FB type)
7. The fully welded sanitary ball valve adopts the most advanced support plate structure at home and abroad, which increases the service life of the valve and reduces the operating torque of the valve. It greatly extends the service life of the valve.
