The long-term supply 02S403 ventilation cap, cover ventilation cap, hood type ventilation tube 


 Hood type ventilation tube performance can be divided into four points: 



 1, 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. 



 Third, the specifications of the cover type of snorkel 


 Model: Z-200 Z-300 Z-400 Z-600 


 Height: H3 = 0 
 , H3 = 500, H3 = 1000 


 Z-200, H3 = 0 height of 890 
 , The H3, H3 = 500 height of 1380 = 1000 height of 1890 


 Z-300, H3 = 0 height of 1000 
 H3, = 500 height of 1500, the H3 = 1000 height of 2000 


 Z-400, H3 = 0 height of 1120 
 , The H3, H3, = 500 height of 1620 = 1000 height of 2120 


 Z-600, H3 = 0 height of 1450 
 , The H3, H3, = 500 height of 1950 = 1000 height of 2450 


 Fourth, the cover type of snorkel instructions 


 1, snorkel design gas flow rate of 5m / s, the filter (net, cloth) layer gas average velocity is 0.75m / s, filter cloth should be installed using the same material stitched, cover the available non-toxic non-metallic materials; 



 2, snorkel casing layer thickness (H3) 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. 


 4, the conditional region ventilation cap according to design requirements using a glass or stainless steel material in order to achieve better anti-corrosion and prolong service life. 


 Long-term supply 02S403 ventilation cap, cover ventilation cap, hood type ventilation tube 0317-5129597