Installation method of pneumatic ball valve There are several common valves used in industrial pipelines. Pneumatic ball valve is the most widely used. You can see the shadow of pneumatic ball valve whether it is a common medium pipeline of water, oil and gas or a harsh working condition containing high hardness particles, whether it is low temperature, high temperature or corrosive environment. As a widely used universal valve, it is necessary to know the correct installation method to use the product correctly and scientifically

How to deal with the ponding problem of grooves
In view of the above problems, the information selects the fluororubber information as the inner lining layer, and then uses two layers of alkali free glass fiber cloth and a layer of polytetrafluoroethylene cloth as the thermal insulation layer. The outer layer uses the silicone rubber plate to prevent the inner layer from corrosion, and then the layers are bonded together to eliminate internal leakage, which can ensure that the new shrink joint skin will not show internal leakage during long-term operation. Repeated tightening of the pressing plate screws during the device can avoid the phenomenon that the screws are not pressed tightly. During operation, it is only necessary to tighten the pressing plate screws every other period of time to prevent leakage and corrosion caused by screw loosening. The key to deal with the leakage of expansion joints and non-metallic contraction joints in the desulfurization flue is basically to deal with the problem of ponding in the groove. The only feasible thing is to fill the groove so that the acid water cannot contact the compression plate bolts and skin of the contraction joint, so that the leakage will not occur. This is also the simplest method, so that the acid water will not accumulate in the groove, It will not cause corrosion and leakage of contraction joint.
The middle section of the non-metallic contraction joint is connected by a soft non-metallic skin, and the interior is filled with insulation cotton. The skin is made of fiber fabric coated with silicone rubber or fluororubber, which has excellent telescopic function and lateral dislocation function. The insulation cotton isolates the high temperature of the medium in the pipeline from the skin, forming a temperature gradient from inside to outside, reducing the acceptance pressure of the skin. Due to the rapid progress of modern science and technology, the comprehensive properties of materials such as high temperature resistance, acid and alkali resistance and chemical stability have far exceeded those of metal materials, and non-metallic shrink joints have replaced metal shrink joints in many areas.