BALL CHECK VALVES
VAP ball check valves prevent backflow during plant maintenance or stoppages. They are designed for use even with soiled wastewaters to provide full guarantees of operation in heavy-duty working conditions.
The sinking ball system ensures a full free passage since at maximum opening the valve has a completely free main line, greatly reducing pressure drops.
They can be installed horizontal or vertical and do not require any maintenance. All Zenit ball check valves hold certification under the EN 12050-4 standard, appendix ZA.
The entire range of ball valves have "rubber on rubber" coupling (rubber ball; seal on rubber gaskets), guaranteeing quieter operation and easy restoration of perfect mating between the ball and the sealing lip.