A canned motor pump pressurized recirculation system which comprises a main unit and a recirculation line. Nikkiso nonseal, a registered trade mark, is another commonly used term for canned motor pumps. The canned motor pump is composed of a traditional centrifugal hydraulic, connected to a special motor through a one piece assembly. The pump and motor are connected by an adapter plate.
Canned motor pumps manufacturers in bangalore india. The pump and motor are connected and sealed to prevent leakage. The pump is completely separated from the motor by a gas chamber, which ends concern over wear and corrosion of the mechanical seal caused by the pumped liquid and ensures a long. Power ratings voltage frequency design life motor poles 1. Api 685 full compliance nikkiso canned motor pumps that. Click the desired item to see the details of the guidelines for that item. 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. Originally designed for the nuclear industry, canned motor pumps over the years have been developed and adapted to a wide variety of industrial services. Originally developed for the nuclear industry, the centrifu. The hydrodynamic action of a set of fixed and variable orifices provides.
To do this, the centrifugal pump is designed in accordance with api 685. We will strive to maintain and improve the stability and safety of. Model numbers are given to canned motor pumps non seal pumps according to the following guidelines. 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 is not connected to the motor causing leakage. 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. The result is a heavyduty sealless pump for the hydrocarbon processing and petrochemical industries. The pump has a secondary impeller which takes suction from main discharge.
We can service all manufacturers pumps, sourcing spares from the oem and utilising reverse engineering when parts are out of stock or obsolete on older units. The pumps are equipped with nikkisos unique emonitor. It can be used to pump hazardous, toxic and supercritical fluids. First shipment of cascade from nikkiso miyazaki factory pdf. Added functions, such as a directionofrotation indicator, show whether the pump is running in the wrong. Boasting high durability and reliability satisfying severe requirement specifications, our products are employed in important processes and waste water treatment process in power plants. Nikkiso makes various types of specialized pumps, pump systems, and related equipment while providing maintenance services and shipping worldwide.
The difference between a standard pump and a canned motor pump. Nikkiso is now one of the largest manufacturers of canned motor pumps in the world. Entire rotating assembly is immersed in the liquid, and motor stator and rotor are isolated from the pumped liquid with corrosion resistant, nonmagnetic. Nikkiso company limited, a pioneer in canned motor pumps, began production in japan beginning in 1957. Din en iso 2858 is a european standard for the standardization of centrifugal pumps that mainly serves to define the dimensions of pumps as well as a predefined standard nominal output viso, hiso.
The canned motor pump design accomplishes true dual containment using a canwithinacan concept. Nikkiso metering pump this pump is designed and manufactured to be endurable for handling of most chemicals in chemical plants, water supply and sewage systems, disposable treatments and plant drainage systems etc. Fluid metering pumps and dosing systems lewanikkiso. Originally developed for the nuclear industry, the centrifugal canned motor pump has been developed further.
As of the early 1950s, safety considerations led to the development of hermetically sealed operating loops. Date hs code description origin country port of discharge unit quantity value inr per unit inr nov 18 2016. The nikkiso centrifugal canned motor pump is specifically used in chemical industry for transfer and circulation tasks, particularly for supercritical fluids. Canned motor pumps are preferred in the chemical and petrochemical industry, but also for simple pumping tasks, such as circulating pumps in industrial refrigeration equipment. The stator has a twolayer structure, consisting of the stator liner, stator band, and extremely tight terminal strip, allowing for a higher degree of safety. Nikkiso strengthens sales of pumps and aftermarket service in europe lewa and geveke facilities start handling acd pumps pdf.
Canned motor pumps 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. 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. The pump has a thrust balancing mechanism comprising of a rotating thrust disk and a stationary carbon ring. Nonseal pumps are often used as transfer pumps for chemical. The pump liquid circulates through the rotor chamber, cooling the motor, and lubricating the slide bearings that support the rotor. The pump basically has the same construction as that of the slurry handling type pump with mechanical seal, and it features a gas chamber between the pump and motor. It is a sealless pump which is made of a highly corrosionresistant material and is absolutely maintenancefree. The recirculation line is positioned external of the main unit, and is connected thereto between the pumps. 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. Sealless pumps with leakproof construction with the pump and motor integrated into one housing. For our canned motor pump range, hayward tyler offers solutions for specific applications such as heat transfer pumps and process pumps.
Nikkiso nonseal, a regi s tered trade mark, is another commonly used term for canned motor pumps. Nikkisoksb pumps are used for aggressive, inflammable, explosive, toxic or valuable liquids and liquefied gases. The development of these centrifugal pumps is closely associated with the expansion of nuclear power generation technology. Singlestage canned motor pumps according to en 22 858. The casing of the chamber forms a sealless enclosure. Pumps and systems products and services nikkiso co. We provide pumps and systems designed for power plants and electric power suppliers. Spirit aerosystems recognizes nikkiso for superior performance. Originally designed for the nuclear industry, canned motor pumps over the years have been developed and. Centrifugal pumps for industrial applications lewa. 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 pump meets the specification of the api685 standard. Nikkiso nonseal pumps nikkiso company limited, a pioneer in canned motor pumps, began production in japan beginning in 1957.
We have 60 years of experience in consulting, design, and service. In addition, our sales team can provide a comprehensive range of options to ensure that your business processes are uninterrupted and running at. Nikkiso canned motor pumps are developed for the heavy duty requirements in the refinery and petrochemical industries. Nikkiso is one of the leading manufacturers in the sealless pump industry for conveying hot oil. Lewa is a leading manufacturer of metering pumps and systems for fluid metering. In the canned motor pump using such a motor, a rotor shaft is supported by a pair of the bearings at opposite sides of the motor to perform a complete leakless structure without any sealed part. Nikkiso nonseal centrifugal canned motor pump lewa. The nikkiso nonseal centrifugal canned motor pump has been designed specifically for the chemical industry. Under the nikkiso vision 2018 fiveyear business plan, nikkisos industrial division has started to revise the profit structure of each product. Nikkiso canned motor pump function of axial thrust balance. Nikkiso canned motor pumps that comply with both api 685 and atex can be used for handling the most volatile liquids in the petroleum and chemical industries api 685.
History of canned motor pumps a canned motor pump crosssection is shown in fig. For the basic type, liquid from the impeller flows back to the pump chamber. The pump and motor are integrated in the sealed leakproof structure of the centrifugal canned motor pump. Teikoku canned motor pumps playing a role in various situations around the globe teikoku electric, the worlds leading canned motor pump manufacturer home product lines support. Pump circulation paths 012teikoku high temperature convection cooling. Nikkiso believes that demand for canned motor pumps will continue to grow mainly in overseas markets.
The newly developed series in accordance with this standard offers operators a secure. Space requirements and noise emissions are much lower than those of conventional centrifugal pumps. Model vip801806 api canned motor pump fischer process. 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. The stator is canned in the air gap, confining the liquid in the rotor chamber. Originally designed for the nuclear industry, canned. Us4616980a canned motor pumps pressurized recirculation. Nikkiso to spin off canned motor pump business into new. Kbl canned motor pumps are developed, based on the technical knowhow from nikkiso co.
Sealless centrifugal pumps for petroleum, heavy duty chemical, and gas industry services atex. The nikkiso centrifugal canned motor pump is an ideal solution for transfer and circulation tasks in the chemical industry. 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. Products and services from nikkisos pumps and systems segment. Nikkiso canned motor pumps that comply with both api 685 and atex can be used for handling the most volatile liquids in the petroleum and chemical. Nikkiso sgm series canned motor pumps are centrifugal pumps, which are due to their construction without shaft seals. Smx convention centre, pasay city, philippines booth. Nikkiso canned motor pump slurry handling type m type duration.
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