Installation and application of plastic ball valve:
There are two kinds of plastic ball valve, socket type and flange ball valve. The installation method of plastic socket ball valve is to fix it on the pipeline by adhesive or welding. The installation method of plastic flange ball valve is to have flange on the valve, and use bolts to connect the flange on both ends of the valve to the pipeline flange. The strength performance of the valve refers to the ability of the valve to bear the medium pressure. The valve is a mechanical product bearing internal pressure, so it must have enough strength and rigidity to ensure long-term use without fracture or deformation. The plastic ball valve is simple in structure and only consists of a few parts with low material consumption; it is small in volume, light in weight, small in installation size, small in driving torque, easy and fast in operation, and can be opened and closed quickly only by turning 90 degrees; it also has good flow regulation function and closing sealing characteristics. In the field of large and medium caliber, medium and low pressure use, the plastic ball valve is the leading valve Door form. When the ball valve is in the fully open position, the ball is the only resistance when the medium flows through the valve body, so the pressure drop generated through the valve is very small, so it has better flow control characteristics. If the ball valve is required to be used as flow control, the main thing is to correctly select the size and type of the valve. The structure and principle of ball valve is especially suitable for making large-diameter valve. Plastic ball valve is not only widely used in aquarium, fish husbandry, chemistry, water treatment and other general industries.
Structural features of plastic ball valve:
Plastic ball valve is suitable for pressure pn0.6-1.0mpa, working temperature 55 ℃ - 150 ℃, plastic ball valve is used on various pipelines to cut off or connect the medium in the pipeline. At the same time, the company can also select valves according to the actual working conditions and special requirements of users. Select different materials for water, steam, nitric acid, vinegar
Acid and other media.
1. Plastic ball valve can be divided into socket type and flange type according to the connection of valve body.
2. Plastic ball valve body and valve cover adopt advanced plastic material technology, with reasonable structure and beautiful appearance.
3. Plastic ball valve seat adopts elastic sealing structure, reliable sealing, light opening and closing torque.
4. The plastic ball valve stem adopts a bottom mounted structure, which can prevent the stem from blowing out.
5. Plastic ball valve can be set with 90 ° switch limit mechanism, and according to the user's needs, it can be equipped with locking device to prevent misoperation.
6. The top switch operation mode of plastic ball valve includes handle, turbine, pneumatic or electric device.
7. The plastic ball valve adopts the ball valve with fluoroplastic lining layer, which has high chemical stability and is suitable for any strong corrosive chemical medium;
1. The plastic ball valve adopts the structure of all-way ball valve to close the element leakage within the whole pressure range, so as to facilitate the pipeline system cleaning and pipeline maintenance.