Oxygen source selection: support routine use of oxygen calculated based on the source of oxygen and in a cost-effective design principles central oxygen supply needed oxygen bus station center oxygen, oxygen through pressure, oxygen pressure regulator regulating device to 0.1-0.5MPa. Yang undervoltage and overpressure alarm device: In order to ensure the central oxygen station safe and stable supply of oxygen to the ward, the station is set up within the support oxygen-voltage and over-pressure alarm device. When the oxygen supply system pressure below the alarm pressure oxygen specialized centers construction, sound and light alarm simultaneously, in order to remind the duty manager oxygen source is switched to the bus or replace oxygen cylinder; when the output pressure exceeds a predetermined pressure value central oxygen supply oxygen station construction, timely alarm and automatically release the excess pressure. Medical oxygen tank supply specification: carburettor should be set and should be able to switch between the two groups, each group should be able to meet the maximum flow of medical liquid oxygen tank oxygen tank charging interface should be set to receive error prevention and protection measures, and should be set in a safe location convenient medical oxygen tank, carburetor and decompression device should be set in place for air circulation oxygen construction specialized centers, medical gas engineering (certified), central oxygen supply is provided by Ericsson Hebei Medical Engineering Co. . Ericsson Hebei Medical Engineering Co., Ltd. (www.hslixin.com) Hebei Hengshui, a leader in medical device manufacturing equipment, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Hebei Ericsson leadership with the staff warmly welcome all inquiries negotiations to create a better future Hebei Ericsson.