Qingdao no negative pressure water supply equipment Water Equipment Co., Walt national investment agency Address: Lu Tin Road Changsha High-tech Development Zone on the 8th floor 5 Oak Park Qingdao no negative pressure water supply equipment works: 1. The pipeline pressure is higher than or equal to the user When the pressure when the water pressure is higher than the user pressure, the bypass valve is turned on, the water is supplied directly by the water users. Users pressure is higher than or equal to the set pressure, frequency conversion equipment is not running, the pump is shutdown. 2. When the pipeline pressure below the user-pressure frequency conversion equipment is running, the pump is operational. A, pipeline flow is greater than equal to water users within the air flow regulator has if the pressure increases, and excess gas flow regulator can be discharged outside. So that the water flow regulator fills with water to prepare for the next peak period. When the water fills the flow regulator, vacuum mounted on top of the elimination of the flow regulator automatically shut down to prevent overflow. Flow regulator pressure to return to the water pipe network pressure. If there is no air flow regulator, flow regulator maintain the pressure within the water pipe network pressure. Pump upgrade for users of water pressure and the pressure of the pipe network in the difference. That pump provides users of water pressure head = - pipe network pressure B, flow regulator pressure to reduce network traffic when rain water users, when the flow regulator when the pressure is lower than atmospheric pressure mounted on top of the negative pressure flow regulator Elimination automatically opens allowing gas into the flow regulator, eliminate the negative pressure. The pressure drop to zero within the flow regulator. Flow regulator inside the water flowing into a common tap water supplied to the user. Reserve water flow regulator compensation is the difference between user and network flow of water. Pressure pump upgrade for users of water pressure. Routine maintenance and precautions Qingdao no negative pressure water supply equipment: 1, daily use, avoid rough handling, should be used with rotary knobs and buttons light. 2. Do not touch the power distribution cabinet electrical components at startup. 3, first turn off the power and check the wiring. 4, non-designated operators do not start. 5, power distribution cabinet put debris is strictly prohibited. Installation instructions Qingdao no negative pressure water supply equipment: 1, the installation should choose a well-ventilated, dust less, not wet the site, environmental humidity -10 ℃ -40 ℃, should be fortified in the outdoor rain, lightning and other facilities. 2, for the convenience of equipment around the installation, maintenance, equipment should be left 70cm room, manholes should be retained 1.5m space, surrounded by floor drains should be located. 3. After selecting the venue, properly handle the foundation, with concrete pouring in after or masonry device body support base, foundation plans reference device) to be the initial setting of the base, in the lifting equipment body and put stability, followed by installation accessories , power. 4, before the test, you should turn off the water supply valves, check valves of the seal, does not allow leakage phenomenon, driving, the steering pump should be noted that when the pressure gauge pointer to the upper limit, pump automatically stops, opens the water supply valve, the normal water supply, for regular water supply, can pull the selector switch to the manual position. 5, the device pump unit should be inspected regularly, regular maintenance and add oil, centrifugal pumps and check valves found leaking, tighten the flange bolts should be timely replacement of asbestos or root, check the pump foot bolts can not be loose, to prevent damage to the machine. 6, electrical automatic control system, should be waterproof, dustproof, always check the wiring insulation, connecting bolts are loose and the fuse is good and so on. The best gauge of external transparent wrapping material to prevent damage. 7, the apparatus body paint off if found, should be promptly painted maintenance to extend the life. Service Qingdao negative pressure water supply equipment - heartwarming 1, where to buy our water supply equipment customers, if demand our company will provide the technical staff - doors free installation and technical training; in water supply equipment to meet the customer's site 3 days to complete the installation. 2, Division I for the sale of water supply equipment for a period of 12 months warranty. The warranty period, the company free treatment of non-human factors and the quality of the equipment itself belongs to occur under normal conditions of use. 3, Division I for the sale of products to provide maintenance services for life. Ensure long-term spare parts supply equipment at preferential prices to ensure supply for at least 10 years. 4, the user equipment failure in the operation, issued in the user maintenance - repair notice after our confirmation, within two hours to give reply by fax or telephone; For on-site service, arrived at the scene within 24 hours in Hunan Province, the province 72 hours within the scene. 5, to provide customers with the non-confidential information required, upon receipt of (potential) customers non-fault information, to give a reply within one working day (8 hours).