If the employee is not open stairwell evacuation, fire doors front room, the front air layer which will flash chamber pressure rise, the emergence of these layers is higher than the front stairwell pressure chamber pressure (the pressure when the stairwell is generally not open by more than hold the valve in case of pressure 50pa), if not adopted adequate relief measures, it will affect the hallway to the front room door open, and obviously very dangerous. Therefore, this approach requires each chamber are located before the pressure relief valve, if you need access to the indoor relief dampers, pressure delivery outlet use to ensure fire cut off. NC outlet generally have certain specifications, pressure delivery outlet, leaving holes in the body of the civil case of restricted difficult to use, in addition, the electrical control is higher. Normally closed valve actuator and more control is more complicated, pressure delivery outlet wholesale, long-term need, rust failure. If routine maintenance, poor governance, but may not be able to use the open, affect the use, normally closed valve outlet pressure and high electrical control system investment. Annular cascade test label pressure delivery outlet of the fan: pressure delivery outlet pressure delivery outlet start hanging process bruise easily move the rotor, stator blade and rubber sealing sheet, pressure delivery outlet type, axial negative. air compressor rotor inertia is quite large. Initiating manufacture rotor start lifting limit device that is axial and radial spacing device. But its high cost makes it impossible to implement is widely used. Annular cascade test turbine test measuring flow parameters than the atmosphere more convenient atmosphere turbine test can more accurately and comprehensively reactant gas stream between the Cascades and the level of liquidity environment. Measuring points can also be more. Wind Tunnel matter what category modeling parameters and tests must obey similar guidelines, but engineering problems in each local similarity can do, to meet the department similar conditions. Pressure delivery outlet | sales pressure delivery outlet | Suntown clean air conditioning (high-quality businesses) from the Texas Air Conditioning Equipment Co., Ltd. Sheng-purification provided. 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!