Side channel pumps selfpriming, canned motor pump with very low npsh sihipcx side channel pumps pcx 3. Sealless and leakproof canned motor pumps, as designed and manufactured by the global teikoku group, provide customers looking for high levels of mechanical reliability and fluid containment the ultimate in centrifugal pumps for the transfer of hazardous, expensive and. No other pump company in the world has the depth or breadth of expertise in the successful application of preengineered, engineered, and special purpose pumps and systems. The lists in the spreadsheet were put together by researching the web for centrifugal pump failure causes, including failure modes of components in the wetend, the bearing housing, the drive coupling, the electric drive motor and the base with foundations. The canned motor pump design accomplishes true dual containment using a canwithinacan concept.
Canned motor pump icm icm pumps are mainly used for pumping hazardous fluid such as radioactive coolant, corrosive and noxious liquid free of suspended solids and particles, liquefied gases, etc. Power ratings voltage frequency design life motor poles 1. Us4616980a canned motor pumps pressurized recirculation. The development of these centrifugal pumps is closely associated with the expansion of nuclear power generation technology. No special foundation is required because canned motor pumps weigh less than conventionally sealed pumps and can never be misaligned. Selfpriming, canned motor pump with very low npsh sihipcx side channel pumps pcx 3. Centrifugal pump 5 motor step motor ac motor motor generator generator ac generator dc generator motor operated valve motor driven turbine dc motor gear motor diesel motor electric motor turbine m impact separator. View and download procon canned motor pump 7000 specification sheet online. Canned motor pump is a centrifugal pump with pump and hermetically sealed electric motor mounted on single shaft thus eliminating the requirement of mechanical seal or other sealing device. Entire rotating assembly is immersed in the liquid, and motor stator and rotor are isolated from the pumped liquid with corrosion resistant, nonmagnetic liner and. Close coupled, space saving design provides easy installation. The pump liquid circulates through the rotor chamber, cooling the motor, and lubricating the slide bearings that support the rotor.
Standard design of teikoku motor pump, but with adapter to increase motor and pump combinations. Singlestage canned motor pumps according to en 22 858. Nikkiso canned motor pump function of axial thrust balance. For our canned motor pump range, hayward tyler offers solutions for specific applications such as heat transfer pumps and process pumps. Sealless and leakproof canned motor pumps, as designed and manufactured by the global teikoku group, provide customers looking for high levels of mechanical reliability and fluid containment the ultimate in centrifugal pumps for the transfer of hazardous, expensive and environmentally sensitive fluids. I took all the failure causes for each failure mode off the internet by doing a web. Nikkiso is now one of the largest manufacturers of canned motor pumps in the world. The pump section can be of single or multistage design. Global customers can easily find configurations to precisely match.
The pump and motor are integrated in the sealed leakproof structure of the centrifugal canned motor pump. Canned motor pumps are characterised by a compact, integrated unit without mechanical seal. The pump has a secondary impeller which takes suction from main discharge. Pumps and systems products and services nikkiso co. Rw rv type reverse circulation vertical installation improves venting. At that time, make sure that the beltsling is at the center of gravity of the pump by just lifting off the ground or the bed, where the pump unit is placed. Dalian canned motor pump factory was founded in 1958 and started producing canned electric pumps in 1974. Singlestage canned motor pumps according to en 22858. Fv type basic type with hollow shaft standard design of teikoku motor pump.
Nikkiso nonseal pump introduction 01 nikkiso nonseal pumps nikkiso began production of canned motor pumps in 1956, making us one of the first companies to produce canned motor pumps commercially in the world. The structure of canned motor pump drive device is shown in figure 1. The stator on the drive motor is separated from the rotor space using a thin stator liner. Entire rotating assembly is immersed in the liquid, and motor stator and rotor are isolated from the pumped liquid with. Pump can be mounted horizontally or vertically with motor end down. Canned motor pump is a centrifugal pump with hermetically sealed electric motor mounted on single shaft thus eliminating the requirement of mechanical seal or other sealing device. Microsoft powerpoint ammonia pump maintenance training author. The pump and motor are connected and sealed to prevent leakage. Improving reliability of canned motor pumps in refrigeration service king j. Originally developed for the nuclear industry, the centrifu. Lightning and power surge damage are major causes of submersible motor failures, so a threephase lightning arrestor is a must. Lower total cost proven maintenance cost savings when compared to conventional mechanically sealed pumps. Singlestage canned motor pumps in process design according to api 685. Canned motor pump technology principle, sealless industrial.
Centrifugal pumps are common process plant equipment and here is a useful list of pump failure modes to understand what can cause centrifugal pumps to fail. Hermetic eline canned motor pump type cnp cnpf cnpk. The difference between a standard pump and a canned motor pump. How to survive alone in the wilderness for 1 week eastern woodlands duration. This integral pump and motor is cooled by the process fluid, eliminating the need. The recirculation line is positioned external of the main unit, and is connected thereto between the pumps. Nikkiso nonseal centrifugal canned motor pump lewa. All teikoku canned motor pumps are supplied with bearing wear monitors. For the basic type, liquid from the impeller flows back to the pump chamber. No newcomer to the field, teikoku has provided customers with proven canned motor pumps for 40 years. But more important is to understand how pump failure modes arise and what to do to remove the pump. The pump meets the specification of the api685 standard. Only hermeticallysealed canned motor pumps make it possible.
Canned spherical type motor 909 115 volt 98 watts 60 hz, 3450 rpm automatic overload protection 959 230 volt 80 watts 50 hz, 2850 rpm features compact design. Canned motor pumps nonseal sleeve tungsten carbide coated bearing carbon graphite silicon carbide lining thrust washer tungsten carbide coated shaft unit can be integrated in a process control system via a 4 to 20 ma signal. The pump and motor are connected by an adapter plate. Nikkiso nonseal, a regi s tered trade mark, is another commonly used term for canned motor pumps.
Added functions, such as a directionofrotation indicator, show whether the pump is running in the wrong. The arrestor is mounted in the pump panel and grounded to both ground terminals onto pump panel and well head. Brochures teikoku canned motor pumps teikoku product lines teikoku rotary guardian the ultimate refrigeration pump teikoku cornell retrofit pump teikoku buffalo retrofit pump retrofit piping solutions. Molder mckinley climatic laboratory eglin afb, fl s. As the motor and wet end of a canned motor pump are integral in design, there is no need for a coupling, guard or a heavy duty baseplate, all of which significantly reduces installation costs. History of canned motor pumps a canned motor pump crosssection is shown in fig. Pumps operate by some mechanism typically reciprocating or rotary, and consume energy to perform mechanical work moving the. Selfpriming, canned motor pump with very low npsh sihipcx. Model vip801806 api canned motor pump fischer process. Teikoku dynapump le series instruction manual pdf download.
Teikoku canned motor pumps zprecision liquid film bearings zlubrication provided by refrigerant zliquid cooled canned motor ztrue secondary containment zdirection of rotation indication ztrg bearing wear monitor. Originally designed for the nuclear industry, canned motor pumps over the years have been developed and. Sealless pumps with leakproof construction with the pump and motor integrated into one housing. Teikoku canned motor pumps designed for zero leakage services in the cpi teikoku, the worlds largest supplier of canned motor pumps presents a stateoftheart, sealless pump. Nikkiso nonseal pump introduction 01 nikkiso nonseal pumps. The canned motor pump is composed of a traditional centrifugal hydraulic, connected to a special motor through a one piece assembly. The pump has a thrust balancing mechanism comprising of a rotating thrust disk and a stationary carbon ring. As part of our canned motor pump range hayward tyler also offer solutions for speci c applications such as heat transfer pumps and process pumps. If you use plastic pipe, the ground wire should also be connected to a stud on the motor to obtain. The rotor is guided by two identical, mediumlubricated slide bearings. Dalian huanyou canned pump co ltd originally known as dalian canned motor pump factory is located at port arthur, which is a naval port city at the southernmost point of the liaodong peninsula. Also, as there is no external shaft in a canned motor pump, there is no need for any costly and troublesome onsite shaft alignment, unlike conventionally sealed or longcoupled magdrive pumps where alignment between the pump shaft and motor seal is required. The stator is canned in the air gap, confining the liquid in the rotor chamber.
Standard pumps are produced with the pump and motor located separately and, because they must be coupled for use, the liquid they handle can leak outside the pump from the gaps in the casing through which the rotating axis passes. Most commonly used for a wide variety of applications. The pump is not connected to the motor causing leakage. In use, the centrifugal canned motor pump implements flow rates up to 1,200 m. The canned motor pump is a centrifugal pump designated according to the nature of its drive. Recommended safety equipment should be used at all times. List of centifugal pump set failure modes, pump failure. Hayward tyler successfully installed multiple pumps at. High pressure canned motor pumps for bdo service butanediol bdo is a chemical used in the manufacturing process of a wide range of plastics, elastic fibers, polyurethanes, and printing inks. With more than 800 pump designs successfully installed, optimex is nowadays a major actor on the international market and continues its ambitious development programm in order to complete its range of products, including very. Nikkiso cryogenic pump nikkiso worlds leading manufacturer of specialty pumps nikkiso co.
Teikoku canned motor pumps playing a role in various situations around the globe teikoku electric, the worlds leading canned motor pump manufacturer pump product linesteikoku electric mfg. The main unit includes a main pump, an auxiliary pump and motor means positioned between the main and the auxiliary pumps for driving the pumps. Nikkiso began with the production of centrifugal canned motor pumps in 1956, making it one of the first companies in the world to produce these pumps commercially, and it continues to do so today. The result is a heavyduty sealless pump for the hydrocarbon processing and petrochemical industries. Humble, tx 24th international pump users symposium. The company has half century of experience in the centrifugal pump business since 1953 of which after 1982. Talk or write to our experts to find your best solution. Care should be exercised upon installation, start up, removal and maintenance of the pumps. The assembly mainly consists of pump main parts static 14 and 18, pump main parts rotary, gear system 24,27 and 30, bearing parts15,30 and 31 and bolts 21.
The motor and pump form a unit with the rotor and the impeller fitted onto a common shaft. Over 400,000 units have been installed worldwide, covering every. Pumps can be classified into three major groups according to the method they use to move the fluid. As of the early 1950s, safety considerations led to the development of hermetically sealed operating loops. Boasting high durability and reliability satisfying severe requirement specifications, our products are employed in important processes and waste water treatment process in power plants. Canned motor pumps were firstly created to meet the zero leakage and maximum reliability requirements of the nuclear power industry. The canned motor pump drive assembly impellers rotate synchronously with the motor. Nikkiso combined more than a decade of canned motor experience with the unique hydraulic capabilities of the sundyne lmv models.
Function of axial thrust balance of a nikkiso nonseal canned motor pump. Page 5 caution dynapump le series are canned motor, sealless pumps that offer a low cost, off the shelf, environmentally friendly alternative to sealed and single containment sealless pumps. A pump is a device that moves fluids liquids or gases, or sometimes slurries, by mechanical action. It is a sealless pump which is made of a highly corrosionresistant material and is absolutely maintenancefree. Canned motor pump 7000 water pump pdf manual download. A canned motor pump pressurized recirculation system which comprises a main unit and a recirculation line. Sep 01, 2008 canned motor pumps, therefore, are fully hermetic pump units. We provide pumps and systems designed for power plants and electric power suppliers. Flowserve is the driving force in the global pump marketplace. Improving reliability of canned motor pumps in refrigeration. Procon canned motor pump 7000 specification sheet pdf download. The significant reduction in lifetime cost of ownership that our canned motor pumps offer, in addition to their guaranteed double containment bat.