What is DWV Pipe?

What is DWV PVC used for, and is it different from schedule 40 PVC pipe and fittings?

Vida Slot Drain is a highly effective yet discreet drainage solution for public realm landscapes The Slot is cut back from 100mm to 30mm which leaves the

dwv slot Vida Slot Drain is a highly effective yet discreet drainage solution for public realm landscapes The Slot is cut back from 100mm to 30mm which leaves the

dwv99 slot DWV ABS pipe ----- Cast iron soil pipe