PE water supply pipe fittings ventilation pipe to determine and pipe fittings should pay attention to the use of the problem

1, the diameter of the ventilation pipe should be determined according to the drainage capacity of the sewage pipe and the length of the pipe, generally not less than half of the pipeline for drainage. Taizhou PE water supply pipe fittings wholesale

2, the length of the ventilation pipe is more than 50m, the diameter of the pipe is the same as the diameter of the PE water supply pipe.

3, 2 and more than 2 sewage risers at the same time with a ventilation pipe is connected, should be based on a sewage riser to determine the diameter of the ventilation riser, and can not be smaller than the diameter of a riser.

4, Combined with the ventilation pipe is not less than the ventilation pipe diameter .

5, 2 or more than 2 sewage risers vent pipe confluence connection, zhejiang PE water supply pipe fittings wholesale confluence vent pipe cross sectional area should be 1 vent pipe cross sectional area of the remaining vent pipe cross sectional area of the sum of 0.25 times.

6, the diameter of the upper part of the water supply pipe to reach the top of the ventilation pipe and the diameter of the sewage riser is the same, but in the coldest months of the average air temperature is lower than -13 degrees Celsius in the region, should be in the interior of the flat roof or ceiling below the 0.3m will be enlarged to the diameter of the pipe to the level of 1.

7) Drainage system using rigid polyvinyl chloride pipe when the ventilation pipe diameter determination.1 ventilation pipe diameter must meet the requirements.2 and more than 2 sewage risers at the same time with a ventilation riser connected to the Ningbo electrofusion fittings wholesale, should be used to determine the diameter of the ventilation riser with a sewage riser, and the diameter of the pipe is not more appropriate than the diameter of any other sewage risers.3. Combined with the ventilation pipe, the use of H-pipe, can be set up in the compartment.The point of connection of the H-pipe to the ventilation riser should be 0.15 above the upper edge of the sanitary appliance.4 When 1 ventilation riser is used for the domestic sewage riser and domestic wastewater riser and an H-pipe is used as the connecting pipe, the H-pipe error layer is connected to the domestic sewage riser and the wastewater riser spacing respectively. However, a combined vent pipe should be provided below the connection point of the domestic wastewater riser.