Want to buy a bed of roses wind chassis should pay attention to what the problem? I believe that every wind chassis users want to buy their desirable and superior quality products, exhaust air box, what tips? In fact, for any products, we want to buy high-quality products has its own methods, fire ventilation air box, users have to do is to acquire the relevant knowledge and understanding of the relevant characteristics of the product is important, for the wind chassis, in fact, is almost the same Users need to understand that in addition to the wind chassis-related parameters such as fan efficiency, noise, electrical power, specializing in the production of wind chassis, air volume, etc., but also according to their needs to consider the various aspects to purchase to their satisfaction with the product, wind chassis, specific precautions, please read on: wind chassis selection, consider the leakage loss of the piping system, the calculation error, and the actual amount of wind fans, negative pressure deviation, the general air volume of 1.05 to 1.1, wind pressure safety factor of 1.10 to 1.15. But do not use too large to prevent wind chassis long run in a low efficiency area. Note the pipe network resistance characteristic matching relationship with wind chassis characteristics. For the stable operation of wind chassis, should make wind chassis work near its maximum efficiency point, the wind chassis operating point performance curve to the right of the peak point of the total pressure. When you purchase exhaust air box problem needs to be considered in the situation now exhaust wind chassis to further growth and application of its choice of users are constantly grow, then we need to consider when purchasing their problems are what does? Coherent skilled personnel to make this issue a further report to us, first check the exhaust duct observe rigid chassis modulating valve opening and closing means is not strong, sharp, clear symbol of the opening and closing viewpoint. Secondly, the police at the check manually turn lights and voltage, current meter operation is not normal, all things exhaust wind chassis parts are no different sound, three-current value is not balanced. Three times to check off on the remote observation points are not exactly secure. Others deal with exhaust wind chassis purchase, otherwise it is necessary too small, it's a pressurized smoke exhaust fan pressure value should be the worst of the loop held accounting system and ensure the stairwell between and pressure value within 40 ~ 50Pa. Also resolved the meaning of the contents of the report hope that, in the majority of users can buy in the future, play some appropriate funding. Wind chassis | fire ventilation air box | Suntown clean air conditioning (certified merchants) by the Texas Sheng provide clean air-conditioning Equipment Co., Ltd. Road Zhiyuan, temper forward. Texas Air Conditioning Equipment Co., Ltd. Sheng-purification (www.dzhffj.com) aims to become and you win symbiosis, strategic partners to move forward, more determined to become a fan, ventilation equipment most influential companies, together with you leap and common success!