NIKKISO NON-SEAL Pump
Canned motor pump
The NIKKISO canned motor pump is an ideal solution for transfer and circulation tasks in the chemical industry. It can be used to pump hazardous, toxic fluids.
NIKKISO NON-SEAL pump consists of a centrifugal pump and an air-tight canned motor. Both of them are attached to each other to form one single unit, while pump and motor share one common shaft. A small flow of working fluid is forced into the rotor chamber to act as a coolant and lubricant in the motor.
Good reasons for a NIKKISO NON-SEAL canned motor pump
The NIKKISO NON-SEAL pump is a canned motor pump that covers high-pressure and high-temperature applications.
Health and safety-oriented
NIKKISO NON-SEAL pumps’ airtight design protects operators against exposure to substances that are dangerous to health. And the pumps are designed to handle explosive or flammable fluids, and other aggressive fluids.
Simple installation and maintenance
Compact design combined with a low number of required components enables simple installation and maintenance. Feeler gauges and shims are no longer necessary. And since there is only one shaft, alignment is a thing of the past.
Small & compact, low space requirements
Pump and motor integration means space is used especially efficiently. With minimal base space requirements, set-up costs are reduced.
Eco-friendly
NIKKISO’s leak-free design prevents product loss and pollutant emission into the atmosphere. The best option for addressing worldwide concerns for the environment and increasingly stringent regulations.
Unique E-Monitor
NIKKISO offers highly reliable canned motor pumps. In order to fit predictive maintenance programs, NIKKISO Non-Seal pumps also have the E-Monitor feature for local bearing monitoring.
Quiet and low-vibration
A fully encapsulated system without a motor fan or exposed bearings enables low-noise and low-vibration operation. Perfect alignment between the motor and pump also reduces system vibration significantly.
Videos about NIKKISO canned motor pump
NIKKISO Canned Motor Pump High Temperature Type (T Type)
NIKKISO Canned Motor Pump Standard Type with motor cooling jacket (N Type)
NIKKISO Canned Motor Pump Disassembling and Reassembling (M Type)
NIKKISO Canned Motor Pump Disassembling and Reassembling (T Type)
NIKKISO Canned Motor Pump Abnormal Operation Detection
NIKKISO Canned Motor Pump Slurry Handling Type (M Type)
NIKKISO Canned Motor Pump Reverse Circulation Type with motor cooling jacket (Q Type)
NIKKISO Canned Motor Pump Disassembling and Reassembling (N Type, Q Type)
Options
API and ATEX conformity
NIKKISO canned motor pumps comply with API 685 standards. Therefore, it its extensively present in the oil and chemical industries.
Remote display for remote control
Security is the Alpha and Omega: That's why we offer the option of an integrated remote display including alarms and emergency shutdown for your canned motor pump.
Bearing monitoring
A proper process monitoring not only prevents failures, it also ensures a long lifetime of pump.
Seal pot
For the HM pump type, a seal pot is available for feeding the rinsing liquid to the mechanical seal.
Optional inducer
To improve the suction conditions (NPSHR), the NIKKISO canned motor pumps can be equipped with an inducer.
Assembly on site
From engineering to commissioning – all from a single source: Our systems are suitable for sea transport and can be completely disassembled and reassembled at the destination.
DIN EN ISO 2858 – End-suction centrifugal pumps (rating 16 bar)
NIKKISO canned motor pumps meet the dimensions and duty points in accordance with DIN EN ISO 2858. This means that NIKKISO fulfills the requirements of a standardized chemical pump, which makes it easier to exchange existing pumps.
Performance data
The NIKKISO NON-SEAL pump is available in Standard- and Engineered Designs.
Technical data
| Standard Design | Engineered Design | |
|---|---|---|
| Flow rate max.: | 780m³/h (3430 gpm) | 1000 m³/h (4400 gpm) |
| Pump head max.: | Single stage: 210m (688ft), Multistage: 425 m (1394 ft) | 600 m (1,970 ft) |
| Fluid temperature range | -60 to 400°C (-76 to 752°F) | -130 to 450 °C (-201 to 842 °F) |
| Viscosity max. | 200 mPa∙s (200 cP) | 500 mPa∙s (500cP) |
| Working pressure max. | 4 MPa (600 psi) | 20 MPa (2900 psi) |
| Liquid end material | SUS316, SUS304 | Alloy 20, Hastelloy C/B (1) , titanium, zirconium, Monel (2), etc. |
| Motor power range | 0.4 to 132 kW (0.5 to 177 hp) | 250 kW (335 hp) |
| (1) Hastelloy is a registered trademark of Haynes International, Inc. (2) Monel is a registered trademark of Huntington Alloys Corporation. |
The NIKKISO NON-SEAL pump types
For a wide variety of requirements: The spectrum ranges from all-purpose variants to special designs for high temperatures, pressures or aggressive fluids.
Type HN
Standard version
Suitable for a wide variety of clean, non-volatile liquids with moderate temperature
- Flow rate up to 780 m3/h
- Head up to 210 m (300 m at 60 Hz)
- Motor power up to 132 kW (200 kW without explosion protection)
- Temperature -60 to +200°C
- Viscosity up to 80 cP
Type HV
With enlarged shaft hole
For liquids with high viscosity between 80 cP and 200 cP
- Flow rate up to 180 m3/h
- Head up to 200 m
- Motor power up to 44 kW
- Temperature -60 to +200 °C
- Viscosity up to 200 cP
Types HB and HC
With jackets at pump casing and/or motor and RBH
For liquids with high melting point – up to 140°C
- Flow rate up to 160 m3/h
- Head up to 200 m
- Motor power up to 22 kW
- Temperature -60 to +200°C
- Viscosity up to 200 cP
Type HT
With external cooling
For liquids at very high temperatures
- Flow rate up to 780 m3/h
- Head up to 210 m (300 m at 60 Hz)
- Motor power up to 132 kW
- Temperatures up to + 400°C
- Viscosity up to 200 cP
Type HX
With ceramic insulated winding, without external cooling
For liquids at very high temperatures
- Flow rate up to 200 m3/h
- Head up to 200 m
- Motor power up to 55 kW
- Temperatures up to + 350°C
- Viscosity up to 200 cP
Types HM (mechanical seal) and HS (throttling bush)
With back flushing
For liquides with important solid content
- Flow rate up to 780 m3/h
- Head up to 300 m
- Motor power up to 200 kW
- Temperatures up to + 400°C
- Viscosity up to 500 cP
Type HQ
With reverse circulation
For liquids with high vapor pressures
- Flow rate up to 180 m3/h
- Head up to 200 m
- Motor power up to 44 kW
- Temperature -60 to +185°C
- Viscosity up to 200 cP
Type HR
With reverse circulation and internal circulation line
For liquids with very high vapor pressures
- Flow rate up to 780 m3/h
- Head up to 210 m
- Motor power up to 132 kW
- Temperature -60 to +185°C
- Viscosity up to 200 cP
Multistage
With three or more impellers
For very high pressure applications
- Flow rate up to 120 m3/h
- Head up to 500 m
- Motor power up to 132 kW
- Temperature -30 to +150°C
- Viscosity up to 140 cP
Type DN
With self-priming diffuser
To avoid blockages or clogged foot valves
- Flow rate up to 180 m3/h
- Head up to 70 m
- Motor power up to 45 kW
- Temperatures up to +170°C
- Viscosity up to 200 cP
- Self-priming head (water +20°C) up to 7 m
Industries
Applications
Amine treatment
At LEWA, you receive pumps and systems for amine treatment in power plants. Ask our experts for more information.
More Details
Production of biodiesel
LEWA provides metering systems for producing biodiesel and other biofuels. Consult us!
More Details
Sulfuric acid injection in copper heap leaching
LEWA process pumps are used to reinject sulfuric acid at 98% into the main pipelines that go to the heap leach sprinklers.
More Details
Pumps for high temperature use
With the NIKKISO Non-Seal canned motor pump, LEWA offers a suitable solution for high temperature processes.
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Industrial refrigeration
With the NIKKISO Non-Seal canned motor pump, LEWA offers suitable solutions for cold storage, cooling and freezing.
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Esterification
With LEWA process diaphragm pumps, as well as the NIKKISO Non-Seal canned motor pumps we offer the optimum solution for esterification.
More DetailsDownloads
NIKKISO Non-Seal Canned Motor Pumps (ES-SA)
NIKKISO E-Monitor fue desarrollado para detectar el estado de los rodamientos de bombas herméticamente cerrados durante el funcionamiento.
3 MB
| pdf |
18.02.2022
NIKKISO NON-SEAL Canned Motor Pumps (EN)
NIKKISO Canned Motor Pumps are developed for the heavy duty requirements in the refinery
and petrochemical industries.
3 MB
| pdf |
06.11.2022
NIKKISO Non-Seal Canned Motor Pumps (PT)
As bombas centrífugas encapsuladas NIKKISO foram desenvolvidas para aplicações em refinarias e no setor petroquímico.
3 MB
| pdf |
18.02.2022
NIKKISO NON-SEAL Spaltrohrmotorpumpen (DE)
NIKKISO Spaltrohrmotorpumpen wurden für höchste Belastungen in Raffinerien und der
Petrochemie entwickelt.
3 MB
| pdf |
06.11.2022
NIKKISO Non-Seal Canned Motor Pumps (USA)
NIKKISO Canned Motor Pumps are developed for the heavy duty requirements in the refinery
and petrochemical industries.
2 MB
| pdf |
21.05.2025
LEWA Service for NIKKISO canned motor pumps in Europe.
297 KB
| pdf |
13.01.2025
LEWA Service für NIKKISO Spaltrohrmotorpumpen in Europa.
300 KB
| pdf |
13.01.2025
NIKKISO CMP (EN)
NIKKISO canned-motor pumps ISO-series as interchangeable solution.
342 KB
| pdf |
17.06.2026
Nikkiso CMP Flyer (DE)
NIKKISO Spaltrohrmotorpumpen als austauschbare Lösung durch ISO-Baureihe.
346 KB
| pdf |
17.06.2026
