Constant Pressure Fire-fighting Pump

APPLICATION XBDH series constant pressure fire-fighting pump is mainly appropriate for the water supply of fire-fighting systems (fire-fighting hydrant system, automatic spraying system and water mist fire-fighting system) in the industrial and civil constructions. In addition, it can also be used for shared fire-fighting and living (production) water supply systems and the water supply systems in constructions, municipalities, mines and boilers. FEATURES XBDH series constant pressure fire-fighting pump is a kind of new product researched and manufactured by our companythrough the market demands. Applicable to fire-fighting and living water supply in high-rise buildings, it is part of a special fire-fighting pump with reliability and high-quality. Its performance and technicsis in accordance with the requirements of National Standard GB 6245-2006 of Performance Requirements and Testing Method of Fire-fighting Pump. XBDH series constant pressure fire-fighting pump has the characteristics of variable flow and stable pressure. Which meanings, within the scope of total flow, the head does not have great changes. Once the pump changes from no flow to the maximum flow needed, the change of head is within the scope of 5% and the pressure will not exceed in case of small flow or no flow. All these characteristics have avoided the phenomenon of excessive pressure of ordinary centrifugal pump in medium and small flow but supply shortage in large flow. In addition, it greatly upgrades the safety and reliability of fire-fighting efficiency, fire-fighting equipment and fire fighters. According to the characteristics of the fire-fighting pump and the actual conditions of our company, the motor power of vertical constant pressure fire-fighting pump is ≤75kw, and the power of the horizontal pump has no limits. The pump impellor is open type with small axial force and without orifice rings which have prevented the rusting and seizure. Cast iron is adopted for pump body and cover while nodular cast iron or bronze materials are adopted for impellor according to usera requirements.