There are several types of plastic valves, including:

PVC Black Body Pipe Fittings Octagonal Ball Valve With Red Handle

1. Environment friendly, non-toxic, good looking;
2. Light weight, easy to handle and transport;
3. Soft colors and excellent design, suitable for installation either exposed or hidden;
4. Wonderful ability in chemical corrosion resistance;
5. Easy and fast installation, making cost minimized;

1.Ball valves: These valves have a ball with a hole in the center that rotates to control the flow of fluid.

2.Butterfly valves: These valves have a disc-shaped closure element that rotates on a shaft to control the flow of fluid.

3.Diaphragm valves: These valves have a flexible diaphragm that moves to control the flow of fluid.

4.Globe valves: These valves have a disc-shaped closure element that moves up and down to control the flow of fluid.

5.Needle valves: These valves have a needle-shaped closure element that moves up and down to control the flow of fluid.

6.Pinch valves: These valves have a flexible sleeve that is pinched to control the flow of fluid.

7.Solenoid valves: These valves use an electric current to control the flow of fluid.

8.Check valves : These valves allow fluid to flow in only one direction and prevent backflow.

These are some of the most common types of plastic valves, but there are many other types available as well.