Applications: The RCDL / RCDLF is a versatile product that delivers a wide range of media from tap water to industrial liquids, adapts to different temperature, flow and pressure ranges, CDL for non-aggressive liquids, CDLF for mild corrosion Sexual fluid. ★ water supply: water filtration and transportation, water district partition, in charge supercharged, high-rise building pressurized. ★ industrial booster: process water systems, cleaning systems, high pressure washing system, fire fighting system. ★ industrial liquid transport: cooling and air conditioning systems, boiler feed water and condensing systems, machine tools, acid and alkali. ★ water treatment: ultrafiltration system, reverse osmosis system, distillation system, separator, swimming pool. ★ Irrigation: Farmland irrigation, sprinkler irrigation, drip irrigation. Working conditions: ★ thin, clean, non-flammable explosive and does not contain solid particles or fibers of the liquid. ★ liquid temperature: room temperature -15 ℃ to +70 ℃ hot water +70 ℃ to 120 ℃ ★ maximum ambient temperature: +40 ℃ ★ altitude: up to 1000m light vertical multistage centrifugal pump: RCDL / RCDLF to install a standard motor Of the non-self-priming vertical multistage centrifugal pump, the motor shaft coupling through the pump head coupling with the pump shaft, rod bolt pressure tube, flow components fixed in the pump head and out of the water between the pump inlet and outlet in the On the same line The pump can be configured according to the needs of intelligent protection device, the pump dry, lack of phase, overload and other effective protection. Motor: ★ motor is fully enclosed, air-cooled two-pole standard motor. ★ Protection class: IP55 ★ Insulation class: F ★ Standard voltage, 50Hz: 1X220-230 / 240V, 3X200-220 / 346-380V, 3X220-240 / 380-415V, 3X380-415V Minimum inlet pressure NPSH: If the pump is not The pressure is lower than the vapor pressure of the liquid being transported, cavitation may occur. To avoid cavitation, ensure that there is a minimum pressure on the inlet side of the pump. The maximum suction H [m] can be calculated as follows: H = Pb × 10.2-NPSH-Hf- Hv-Hs where Pb = barometric pressure [bar] (barometric pressure settable to 1 bar) and Pb is system pressure [bar] in a closed system NPSH = net positive tip [m] Curve on the maximum possible flow of the pump to read). Hf = Line loss at inlet [m]. Hv = steam pressure [m]. Hs = safety margin = minimum 0.5m head. If the calculated H is positive, the pump can be operated at maximum suction. If the calculated H is negative, there must be a minimum inlet pressure H head. Parallel operation: Multiple pumps in parallel to replace a large pump may be more advantages ★ In the variable flow system, to adapt to the system required operating point. ★ increase the possibility of water supply, because the pump failure, only affect the system part of the flow.