PVC (PolyVinylChloride) Class 200 sprinkler pipe has many of the advantages that PVC Schedule 40 sprinkler pipe does. The ease of attaching fittings and strength compared to weight are a couple. Like PVC Schedule 40 pipe it comes in 20′ lengths and has a bell end on one end of the pipe which makes installation a breeze. It is also flexible enough to be laid in a gradual curve. Smooth walls on the pipe means there is less friction loss as the water travels through the pipe compared to other types of pipe like galvanized. It is also a non conductor of electricity and immune to chemical corrosion like other types of pipe.
You can use the same Schedule 40 fittings on Class 200 pipe that you would use on Schedule 40 pipe. The only difference in the two pipes is the inside diameter.
Pros – Cheaper in cost than Schedule 40 pipe. Better flow than other types of pipe. Ease of installation. Flow, Class 200 pipe has better flow capabilities than Schedule 40 pipe.
Cons – Strength. As the name implies Class 200 pipe is rated to operate at 200 psi. 3/4″ Schedule 40 pipe of the same size is rated to operate at 480 psi. Pipe seems to become more brittle and fragile over timer than its PVC Schedule 40 counterpart.
Recommendation – Spend a little extra money and buy the PVC Schedule 40 pipe.