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China, Chinese Cr20-12 a-F-a-E-Hqqe High-Pressure Vertical Multistage Centrifugal Pump for Industrial Circulation and Boosting1 Industrial Products Supplier Manufacturer Details, price list catalog:
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Pump Vacuum EquipmentOther Pump Vacuum EquipmentWater PumpsVertical Stainless Steel Multistage Pump
Beijing Zhongping Technology Co., Ltd.
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Product Description Title: CR20-12 A-F-A-E-HQQE Multistage Pump:55kW,400V,70m3/h,204mThe CR20-12 A-F-A-E-HQQE is a high-pressure vertical multistage centrifugal pump engineered for demanding industrial applications.It features a 55 kW,3x400V motor,delivering a maximum flow of 70 m3/h and an impressive head of 204 meters.This twelve-stage pump combines high flow capability with extreme pressure generation.It is ideal for high-rise building pressure boosting,industrial water jetting,and reverse osmosis systems.The pump's robust construction ensures reliable performance in continuous duty operations.Product ParametersParameter Name Parameter ValueSeries CRModel CR20-12 A-F-A-E-HQQEType Vertical Multistage Centrifugal PumpMax.Flow 70 m3/hMax.Head 204 mMotor Power 55 kWSupply Voltage 3~400 VMotor Efficiency IE3Number of Stages 12Max.Operating Pressure 25 barInlet/Outlet Connection DN 80/DN 80Max.Liquid Temperature+120°CCasing Material Stainless Steel(AISI 304)Product FeaturesThis model achieves extreme pressure through its twelve-stage design,with each stage contributing to the total head.Advanced hydraulic balancing minimizes axial loads,ensuring smooth operation and extended mechanical seal life.The vertical in-line configuration provides a compact footprint for space-constrained installations.Stainless steel AISI 304 construction offers excellent resistance to corrosion and erosion.The pump is equipped with a high-efficiency IE3 motor for reduced energy consumption.Standard mechanical seals are designed for reliable operation with clean,thin fluids.AdvantagesThe primary advantage is the ability to generate very high pressure while maintaining a significant flow rate.The IE3 motor ensures optimal energy efficiency,leading to lower operational costs over the pump's lifecycle.Its robust design guarantees high reliability and minimal maintenance requirements.The space-saving vertical design is crucial for installations where floor space is limited. engineering provides stable performance across a wide operating range.This results in a low total cost of ownership for high-pressure applications.Application ScenariosThis pump is essential for pressure boosting in skyscrapers and very high-rise building complexes.It is widely used in industrial cleaning systems requiring high-pressure water jetting.The pump serves critical roles in reverse osmosis(RO)plants for seawater desalination and wastewater treatment.Other key applications include boiler feed water systems,mine dewatering,and long-distance water transport.It is also used in industrial processes requiring high-pressure spray and wash down.The pump handles clean,non-aggressive,non-abrasive liquids.Usage InstructionsInstall the pump on a solid,perfectly level base capable of supporting its weight and dynamic forces.Ensure all inlet and outlet piping is properly supported and aligned to avoid strain on the pump casing.Electrical installation must be performed by a qualified electrician following local codes.The pump must be fully primed before start-up to prevent damage to the mechanical seals.Install isolation valves and a check valve on the discharge side for safe system isolation.For variable demand applications,integrate a frequency converter for precise pressure and flow control.PrecautionsDry running is strictly prohibited and will cause catastrophic failure of the mechanical seals.The fluid must be clean and free of solid particles to avoid abrasion of the impellers and diffusers.Operating temperature must never exceed the specified+120°C limit.Always disconnect and lock out the electrical power before performing any maintenance work.Do not operate the pump against a closed discharge valve for more than a few minutes.Protect the pump and piping from freezing conditions to prevent casing damage.Frequently Asked QuestionsHow does the 12-stage design enable a head of 204 meters?Each stage of the multistage pump consists of an impeller and a diffuser that incrementally increases the fluid's pressure.In the CR20-12,the twelve stages work in series,with the discharge from one stage feeding the inlet of the next.This cumulative effect allows the pump to build a total head of 204 meters,which would be impossible for a single-stage pump of similar size.The design efficiently converts rotational energy into high pressure.The multi-stage approach allows for the use of smaller,more efficient impellers at each stage compared to a single large impeller needed for the same head.This results in a more compact and mechanically stable pump.The shaft and bearings are designed to handle the hydraulic forces generated across all twelve stages reliably.What are the typical industrial applications for a high-pressure pump like this?The CR20-12 is critical in high-rise construction for boosting water pressure to the upper floors of skyscrapers,ensuring adequate supply.In industrial settings,it is used for high-pressure water jetting for cleaning heat exchangers,reactors,and other large equipment.It is also a key component in reverse osmosis systems,providing the necessary pressure to force water through semi-permeable membranes for desalination or purification.Other applications include supplying water for hydraulic testing,boiler feed applications,and long-distance pipeline transport where high pressure is needed to overcome friction losses.Its ability to deliver both high flow and high pressure makes it versatile for demanding industrial and municipal tasks.What special installation considerations are needed for a high-head pump?The high discharge pressure requires that the entire discharge piping system,including valves and fittings,is rated for the maximum pressure the pump can generate.The foundation must be exceptionally robust to absorb the weight and any vibrational forces,ensuring stable operation.Proper anchoring of the suction and discharge pipes is crucial to prevent movement and misalignment under high pressure.Special attention must be paid to the pressure rating of all components downstream of the pump,such as gauges,sensors,and relief valves.For safety,a pressure relief valve should be installed on the discharge header to protect the system from overpressure.Piping supports must be designed to handle the significant forces involved.How is the motor power of 55kW justified for this application?The 55kW motor power is directly related to the high energy required to move a large volume of water(70 m3/h)against a very high pressure(204 meters).The hydraulic power required is calculated by a formula involving flow,head,and density.A 55kW motor provides the necessary shaft power to achieve this duty point while accounting for pump efficiency and a safety margin.This power rating ensures the pump can handle the full load continuously without overheating.Operating at this scale,the energy savings from the IE3 high-efficiency motor are substantial,quickly offsetting the higher initial investment through reduced electricity costs over the pump's operational life.What maintenance procedures are critical for a 12-stage pump?Regular monitoring of vibration levels is essential,as misalignment or bearing wear can be detected early through vibration analysis.Periodic checks of the mechanical seals for any signs of leakage are crucial to prevent sudden failures.The motor bearings may require scheduled re-lubrication based on operating hours,as specified in the manual.Unlike smaller pumps,it is advisable to conduct periodic performance tests to check for a drop in flow or head,which could indicate internal wear.Because of the complexity and number of stages,maintenance should ideally be performed by trained technicians.Keeping detailed records helps in predicting component life.Is a bypass line or minimum flow valve required for this pump?Yes,a minimum flow protection system is highly recommended for the CR20-12.If the pump operates for extended periods at a flow rate below a certain minimum,the energy not carried away by the fluid turns into heat.This can cause the fluid to vaporize,leading to cavitation and overheating,which can damage the pump.A bypass line with an orifice plate or an automatic recirculation valve(ARC valve)should be installed.This system ensures that even when the main discharge flow is low,a minimum amount of fluid recirculates to keep the pump within a safe operating range.This is critical for pump longevity.How does the performance curve differ from a pump with fewer stages?The performance curve for the 12-stage CR20-12 will show a head-capacity curve that is significantly higher and flatter compared to a similar pump with fewer stages,like the 3-stage CR20-03.While both may have a similar best efficiency flow rate,the CR20-12 can maintain a much higher head as the flow decreases.The power curve will also be steeper.This characteristic makes the pump well-suited for systems where a consistent high pressure is required despite variations in flow demand.When selecting the pump,it is vital to ensure the required duty point falls within the recommended operating range to avoid cavitation and ensure efficiency.What is the importance of the material specification AISI 304?AISI 304 stainless steel offers excellent corrosion resistance against a wide range of water types,including mildly chlorinated water,which is common in municipal supplies.This material prevents rust and degradation of the wetted parts,ensuring the hydraulic performance remains stable over time and the water quality is not compromised.For the CR20-12,which may be used in critical applications,the material's strength is also important to withstand the high internal pressures generated by the twelve stages.If the pumped liquid is more aggressive,alternative materials like AISI 316 would need to be considered.What control methods are most effective for this pump?For applications with varying demand,a Variable Frequency Drive(VFD)is the most effective control method.It allows the pump speed to be adjusted to meet the exact pressure or flow requirement,resulting in massive energy savings compared to throttling control.A VFD also provides soft starting,eliminating current inrush and water hammer.Constant pressure control is often used in boosting systems,where a pressure sensor on the discharge line sends a signal to the VFD to maintain a set pressure.For simpler on/off control,a pressure switch can be used,but this is less efficient and causes more wear on the electrical and mechanical components.What are the key factors for ensuring long-term reliability?The most important factor is correct installation,including proper foundation,piping alignment,and electrical connections.Secondly,operating the pump consistently within its recommended operating range,avoiding low-flow and over-pressure conditions,is critical for longevity.Implementing a proactive and regular maintenance schedule based on operating hours is the third key factor.Using a minimum flow protection system and ensuring clean fluid free of abrasives will prevent most common causes of failure.Finally,using genuine spare parts for any replacements guarantees compatibility and performance,ensuring the pump continues to operate as designed for its entire service life.Beijing Zhongping Technology Co., Ltd. is a leading provider of industrial automation solutions, intelligent robotics, and advanced system integration services. With decades of expertise, the company has established long-term strategic partnerships with global industry leaders such as Siemens, ABB, Schneider Electric, KUKA, Yaskawa, and FANUC, leveraging their cutting-edge technologies to deliver innovative, tailored solutions across diverse sectors.Specializing in technical support, product distribution, and end-to-end engineering services-including system design, installation, commissioning, and maintenance-Beijing Zhongping Technology ensures seamless operational efficiency for clients in industries spanning automotive manufacturing, battery production, aerospace, oil and gas, chemical processing, food and pharmaceuticals, logistics, metallurgy, and heavy machinery. By harnessing its robust global supply chain network and a highly skilled technical team, the company guarantees precision-driven resource allocation, rapid response capabilities, and cost-effective procurement strategies. These capabilities empower clients to streamline operations, reduce downtime, and enhance competitive advantage in dynamic markets. Committed to excellence, Beijing Zhongping Technology remains dedicated to advancing industrial innovation while fostering sustainable growth and value creation for enterprises worldwide.Q1: What is the core business scope of Beijing Zhongping Technology Co., Ltd.?The company's business scope primarily covers comprehensive industrial robot supply chain services, industrial automation technologies and technical services, digital smart factory solutions, and hydraulic intelligent control products and services.Q2: Which brands does the company collaborate with?The main cooperative brands of the company are SIEMENS,ABB,Schneider,DELTA,WEINVIEW,MCGS,ADVANTECH,OMRON,Simphoenix,RITTAL,MOXA,ESTUN, RKC, YASKAWA, HIKVISION, FANUC, MITSUBISHI ELECTRIC, KUKA, Fuji Electric, SICK, Walvoil, CASAPPA, EATON, Bosch Rexroth Group, Parker etc.Q3: What are our competitive advantages compared to other suppliers?With our robust supply chain capabilities and global presence, we deliver faster, more efficient services. We strive to offer the best possible prices to demonstrate our sincerity and value.Q4: How long does delivery take? What about shipping costs?Delivery timelines and shipping costs depend on the specific model(s) and quantity you require. Please share your current needs with us for precise details.Q5: Can't find the model you need?We showcase only a selection of models here. If you cannot find your desired model, contact us directly for further assistance.Q6: How to contact Beijing Zhongping Technology Co., Ltd.?Beijing Zhongping Technology Co., Ltd.
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