? Posted: small European online QQ:? 1922601218 Mobile:? 159-7414-3465 1. Box no negative pressure water equipment features no negative pressure water equipment box is a new non-tower water supply equipment, controlled by the pump unit equipment, pressure regulator device composed of three parts. Water supply capacity is determined by the pump unit, coordinated operation of the system by the control system, pressure regulator device main role is energy storage packing, as well as to cope with a small amount of normal water supply pipeline leak, but also the implementation of automatic control indispensable part. When a lot of water, pipeline pressure drop, the water pump starts automatically. Box no negative pressure water supply equipment according to work is not the same box can be divided into no negative pressure water supply equipment and frequency adjustment constant pressure water supply equipment, have their own characteristics. Widely used in life, fire, production, spray until a variety of fields. Pumps are the basis of water supply equipment, water supply equipment is the ability to show the fundamental guarantee its water supply, water supply equipment for supporting the pumps are generic and can be all kinds of traffic, Jan program suitable pumps. According to traffic, Jan program requires products 1 to 4 or more pumps operating in parallel, with the addition of a booster pump unit power supply voltage equipment (water flow pumps) as in the low flow range switching operation and the main pump to provide efficiency and further reduce energy. According to the working mode of the device can be divided into different life forms, fire type, fire protection sprinkler type and share models and other forms of life. 2, box no negative pressure water equipment selection based on selection of a box-type negative pressure water equipment is the fundamental basis for the design of water flow and water pressure (water head), and the need to consider changes in the type of traffic to use. Continuous: a day with little normal leakage flow is zero when the network itself or on maintaining a certain flow, for example, large hotels, restaurants, industrial and mining enterprises pressurized systems. Intermittent: water trough for a long time and the flow is very small or zero, for example: a small office building, office, commercial and residential, various types of residential, and industrial water, etc. should also take into account changes in the water flow of a certain period of time and changes in various factors in different seasons flows, different in different regions, such as water. Fire sprinkler water supply equipment and water supply equipment in general should choose pneumatic water supply equipment, its deputy dwell long in the system state, no flow changes, water supply equipment, pneumatic tube leak can cope with the general, and a small increase in traffic pump, usually do not need to start the main pump, saving energy. Life water supply equipment selection box no negative pressure water supply equipment pneumatic equipment or can be, both have their advantages. Advantage of negative pressure water equipment box: You can adjust the constant water supply and constant voltage constant value within a certain range accuracy is generally less than 0.02MPa, frequency control is an efficient energy saving methods and the usual pressure water supply equipment Compared to the average efficiency of 20%, in addition, a small start-rush current and frequency of the pump 盍 impact is small, little noise at low speed. Advantages pneumatic water supply equipment: cost is relatively low, the control system technology is simple, convenient service, maintenance easy. ? Posted: small European online QQ:?? 1922601218 Mobile: 159-7414-3465 national free hotline: 400-086-8955