An elbow-type snorkel introduced 
 Drainage stretch top snorkel snorkel system, the main snorkel, vice snorkel, combined with snorkel, ring snorkel, snorkel apparatus, the convergence of the type of snorkel and snorkel, respectively, for different locations, which cover type snorkel for water storage pond and tank installation. Pipe connected with the atmosphere set by the bend snorkel for air circulation within the drainage system, the pressure is stable, waterproof seal destruction. 
 Two, an elbow-type ventilator of performance, toxic and harmful gas emissions in the drains out, in order to meet the health requirements; 
 , Snorkel fresh air to the reservoirs, water tanks and drains, in order to reduce metal pipe corrosion and prolong life; 
 3, reservoirs, water tanks should be set snorkel above the two in order to improve the capacity of the drainage system, (take a small example, an intravenous drip of the bottle down the fluid will flow, you must insert a ventilation tube, one end through the atmosphere the gap between the one end through the surface and bottom, to prevent the formation of negative pressure within the pipeline to ensure smooth drainage) to prevent stagnant water, the formation of odor, reduce the pressure fluctuations, to protect the water seal to prevent the water seal destruction. 
 Can quickly within the reservoir and water vapor and harmful gases discharged, built-in gauze gauze effectively blocked to prevent the disease vector insects, and dust to enter in order to undermine water quality. 
 , Bending snorkel Help 
 A snorkel filter (net, cloth) layer of gas average velocity is 0.75m / s. The filter cloth should be installed using the same material stitched, cover available non-toxic, non-metallic materials production; 
 Snorkel casing layer thickness (H1) 0.0m, 0.5m, 1.0m three kinds of design, 0.0m applies to the south, 0.5m in the central region, 1.0 in cold regions. 
 3, rust, corrosion after welding production according to customer design requirements. 
 Conditional region according to design requirements made of stainless steel in order to achieve a better anti-corrosion and prolong service life.