Siphon drainage system is a complex system, including a variety of components and equipment, among which rainwater bucket and pipe are two more important parts, in the selection:
1. Rainwater bucket
The flat-bottomed metal rain bucket is used to ensure the anti-aging performance and anti-leakage performance of the rain bucket under long-term sunlight. The flat-bottomed rainwater bucket ensures easy and safe construction. Since the gutter has both outer and inner gutters, the patented flat-bottomed rainwater bucket is installed on the concrete roof, which is simple and fast, and can effectively prevent water leakage.
2. Selection of pipes
The selected pipes and connections must be able to meet the needs of both positive and negative pressures. The selection of pipes can be divided into the following categories;
1) HDPE pipe: plastic pipe, low cost, smooth inner wall, good hydraulic conditions, easy construction, hot melt welding. Plastic-coated steel pipe: steel-plastic composite pipe, high cost, good rigidity, good fire performance, smooth inner wall, good hydraulic conditions, long service life, flat clamp or flange connection.
2) Galvanized steel pipe: ordinary steel pipe, high cost, good strength, good fire performance, long service life, using groove clamp connection.
3) Stainless steel pipe: high-grade drainage steel pipe, with the highest cost, good strength, good fire performance, long service life, and is connected by sub-arc welding or electric welding.
When choosing a siphon drainage system, it should be combined with the intensity of the rainstorm in the area, the catchment area on the surface of the building, etc., and comprehensively consider the performance, quality, safety and other factors of the system, and choose a cost-effective product.