2 to 3 Inch PP Non Return Valve is fitted to ensure that the medium flows through a pipe in the right direction. This valve is used where pressure conditions may cause reversed flow. It is made up of the first-rate polypropylene that is resistant to the chemical attacks, heavy pressure, and other degrading factors, therefore, this nonreturn valve does not degrade in quality or become inferior in the long run. 2 to 3 Inch PP Non Return Valve has got high dimensional stability and durability.