Dental chair negative pressure pipe can use ppr?

1. You can use PPR pipe, layer height to 3M calculation, basement level to 4M calculation, it is best to divide into three districts, with two sets of non-negative pressure equipment, 1-6 layers of tap water direct supply, 7-15 layers of a set of non-negative pressure, 16-23 layers of a set of non-negative pressure.

Head: 7-15 layers choose 64 meters head of the pump, which is 6.4 kg, 16-23 layers choose 88 meters head of the pump, which is 8.8 kg.

2. Constant pressure frequency conversion water supply equipment head is also selected, but the partition is not the same, can be divided in half, the low area of 1-12 layers of the pump selected 55 meters head, 5.5 kilograms, the high area of 13-23 layers of the pump selected 88 meters head, that is, 8.8 kilograms