Pneumatic ball valve can be used in railway locomotives and railway sleeper pads
Pneumatic ball valves can be used in many fields, but they are not suitable for all places. How should we choose the appropriate pneumatic ball valves? I have sorted out the characteristics of pneumatic ball valve and its advantages and disadvantages for you before. Do you remember? It doesn't matter if I don't remember. I will recall a little later, mainly to talk about the scope of application of pneumatic ball valves.
When selecting pneumatic ball valve, we should first understand its characteristics, and then select the environment. The characteristics of pneumatic ball valve are that its shape can be designed as required, its stiffness can be adjusted, and it provides greater damping ratio, shear resistance, tensile resistance, compression resistance, and simpler device than the ball valve. Its defects are high natural frequency, short service life, and limited operating environment. The temperature of ordinary operating environment should be controlled between - 30-70 ℃, and some chemical corrosive environments should select pneumatic ball valves of suitable materials for use.
At present, the mainstream pneumatic ball valves suitable for consumption are: natural rubber, neoprene rubber, butadiene rubber; The market is full of pneumatic ball valves based on reclaimed rubber, which are hard to handle but have no ball valve performance, nonlinear load compression ratio, rough appearance, poor damping effect and easy to age. Remember to choose carefully to prevent the purchase of such pneumatic ball valves.
Main application scope of pneumatic ball valve:
1. Pneumatic ball valve for steam
2. Valve products for railway locomotives and railway sleeper pads
3. Pneumatic ball valve for bridge
4. Pneumatic ball valve for construction engineering
Because the valve has the above characteristics, it is widely used on the bogie of locomotive running part. The pneumatic ball valves used on electric locomotives include central support cone, axle box pull rod elastomer, side bearing stack, motor suspension pad, elastic wheel, elastic gear, air ball valve, transmission mounted bow block and ball hinge, coupler buffer, etc.
The main function of the pneumatic ball valve applied to the locomotive is to accept the contraction stress, shear stress, change torque, and simultaneously accept the combined action of two or more stresses. All kinds of pneumatic ball valves have certain special performance and play an important role in each other. The speed of the railway locomotive has improved from time to time, and the dynamic effect on the line has increased sharply, causing fierce wear of the line, tire and local components of the locomotive running. Therefore, the application of pneumatic ball valve is increasing.
From the above, we can draw a conclusion that we should use different products when using different centers, and different products will produce different effects. But no matter what products we use, we should fully understand the characteristics of the products in the early stage. As long as we choose the right products and use the right center, the products can really serve us.