Canned Motor Pump: NIKKISO NON-SEAL Centrifugal pumps

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



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

NIKKISO pump head V- circulation boost basic

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

NIKKISO pump head Q - reverse circulation

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

NIKKISO pump head DN-self priming horizontal

Industries

Complete systems from LEWA for offhore applications in the Oil-and Gas Industry

Pumps and Packages for the Production of Crude Oil and Natural Gas

LEWA has been your expert in pumps and packages since the 1950s. With us, you get everything from a single source: Our custom-built packages are used all around the world for offshore crude oil and natural gas production. From China to the United Arab Emirates, strong partners rely on our expertise for crude oil exploration applications.

More Details

Reliable pumping solutions for Refineries

Pumps and Metering Systems for Distillation Plants and Applications in Refineries

Crude oil must be cleaned, separated, and converted (refined) until the final products suitable for sale are made (e.g., gas, diesel, heating oil, lubricants, propane, butane). LEWA supports you with pumps and metering systems, which are used in the refining process during chemical metering. Application with our products are distillation plants, coker, cracker, or visbreaker, for example. Ask our experts for more information!

More Details

Pump, systems and skids for the Petrochemical industry

Pumps and Metering Packages for the Petrochemical Industry

We have supplied durable pumps and metering systems for applications such as the hydrocracking process for over 50 years. Petrochemicals generate starting products for the manufacture of plastics, pharmaceuticals, colorants, detergents, and other products. Contact our experts and allow us to provide you with detailed information about metering and pumping solutions for the hydrocracking process!

More Details

Robust metering solutions for the use in the Chemical industry

Chemical Pumps and Metering Packages for the Chemical Industry

When critical, environmentally hazardous, toxic, or flammable fluids and suspensions need to be reliably conveyed or metered in high-pressure processes, there is no alternative to hermetically sealed metering pumps, process diaphragm pumps, and metering systems from LEWA. Hermetically sealed LEWA pumps with pressures up to 1200 bar are the first choice for the production of chemical intermediate and end products. Contact our experts and let us advise you about your individual chemical pump or system solution!

More Details

Metering and dosing additives in the plastics industry

Pumps and Systems for the Plastics Industry

We offer you special expertise for all compounding processes in the plastics processing industry (addition of waxes, flame retardants, and lubricants). Contact our experts! We're happy to give you advice about metering and pumping solutions for the plastics industry such as in polyethylene processing.

More Details

Systems and pumps for the Cleaning and Detergents industry

Pumps and Systems for the Manufacture of Detergents and Cleaners

LEWA offers continually operating, formula-controlled systems for the manufacture of household and industrial cleaners in all commercially available surfactant concentrations – from raw product to end product. Contact our experts and let us advise you – we will work with you to configure pumps and systems for the manufacture of detergents and for the production of other cleaners.

More Details

For energy utilities LEWA provides customer specific pumping solutions

Metering Packages and Pumps for Power Plants and Power Suppliers

LEWA supports power plant operators and power suppliers with pumps and systems for conveying, metering, and mixing different fluids. We not only provide power plants with our products, but also develop solutions for wastewater treatment plants, gas bottlers, biogas producers, regional power suppliers, and hydrogen producers.

More Details

LEWA solutions are found also in other industries, for example in the Varnish- and Lacquer industry

LEWA solutions are found also in other industries

Pumps and Metering Systems for Other Industries

LEWA offers customized solutions and references for almost all industries in which processes require exact metering or the reliable conveyance of fluids. As specialists in fluid handling, we of course also have experience in areas outside of our key markets.

More Details

Pumping solutions for mining and metal and mineral processing

From the explosives manufacturing, ore extraction and metal and mineral recovery to effluents treatment and final product finishing, our solutions have helped our clients to save energy and consumables while keeping high operational safety and low cost of ownership.

More Details