1. Catalogs
  2. LEWA GmbH
  3. NIKKISO Non-Seal® Pump
video corpo

NIKKISO Non-Seal® Pump

NIKKISO Non-Seal® Pump
1 / 24 PagesView full catalog

NIKKISO Non-Seal® Pump

Product catalog summary
Introduction
NIKKISO has been a leader in centrifugal canned motor pump production since 1956, initially for the nuclear industry and now for various industrial applications. They have developed advanced systems like the E-Monitor for bearing condition monitoring.
Advantages
The NIKKISO Non-Seal Pump offers quiet, low-vibration operation, easy installation and maintenance, safety with no leakages due to a double safety enclosure, compact design, and an E-Monitor for bearing condition monitoring.
Markets
NIKKISO pumps are used in the chemical industry, refineries, and energy utilities for applications like conveying hot oil, unloading rail vehicles, and handling high-pressure applications.
Reference Applications
Applications include conveying high melting point liquids, LNG production, water treatment, high-temperature operations, and unloading chemicals in paint factories, with specialized pump designs like heating jackets and self-priming features.
Features
The pumps comply with API 685 and ATEX standards, featuring integrated thermostats, temperature monitoring, and various bearing materials. They are designed for high-pressure applications with components like shaft protection sleeves and axial thrust washers.
Components
The E-Monitor provides real-time monitoring of rotor position and bearing condition, aiding in preventive maintenance. The pumps use a modular bearing system with materials like silicon carbide for durability.
Motors
The motors are designed for reliability with features like seal-welded linings, encapsulated protection, and integrated cooling and lubrication systems, ensuring environmental protection and safety.
Pump Types
Various pump types cater to different requirements, including Type HN for clean liquids, Type HV for high-viscosity liquids, Type HB for high melting point liquids, and others for high-temperature and slurry handling applications.
Accessories
Accessories include a sealing system for pump type HM, mechanical bearing monitoring, dry-run protection, an inducer to reduce NPSHr, and a remote display for E-Monitor values.
Standards and Certifications
The pumps comply with numerous standards and certifications, including EN 80079-36 and 37, EN 60529, CE Marking, ATEX 2014/34/EU, TR-CU, EMC Directive 2004/108/EG, EN 60079-0/1/7, TA-Luft, Machinery Directive 2006/42/EG, API, and ISO9001:2015.
Technical Data
Technical specifications include a max flow rate of 780 m³/h (standard) and 1200 m³/h (engineered), max head of 210 m (single-stage) and 500 m (multistage), fluid temperature range from -60 to +400 °C (standard) and -200 to +450 °C (engineered), and various material options for the liquid end.
Creating Fluid Solutions
NIKKISO offers technical consulting, engineering tests, service and maintenance, and system integration to provide comprehensive fluid solutions.
See more

Catalog excerpts

NIKKISO Non-Seal® Pump-1

NIKKISO ® Non-Seal Pump Centrifugal canned motor pumps.

 Open the catalog to page 1
NIKKISO Non-Seal® Pump-3

NIKKISO Non-Seal Pump – Introduction NIKKISO Non-Seal® 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. Originally developed for the nuclear industry, the centrifugal canned motor pump has been developed further over the years and adapted to a wide range of industrial applications. NIKKISO has taken a pioneering role in these developments since its founding. For example, the E-Monitor is the most advanced system of its kind for the monitoring...

 Open the catalog to page 3
NIKKISO Non-Seal® Pump-4

NIKKISO Non-Seal Pump – Advantages NIKKISO Non-Seal Pumps. The advantages at a glance. Safe No gaskets – no leakages. Through a double safety enclosure, consisting of an internal stator lining and an external pressure-resistant stator housing, leakages and thus harmful impacts to the environment are avoided. This minimizes both immediate and long-term risks for personnel. Quiet and low-vibration A fully encapsulated system without motor fan or exposed bearings enables low-noise and low-vibration operation. E-Monitor Monitoring of bearing condition during pump operation for the highest safety....

 Open the catalog to page 4
NIKKISO Non-Seal® Pump-5

NIKKISO Non-Seal Pump – Markets Chemical industry NIKKISO is one of the leading manufacturers in the sealless pump industry for conveying hot oil. Non-Seal pumps are often used as transfer pumps for chemical fluids or for unloading rail vehicles. Refineries The applications for refineries include the conveying of catalysts for alkylation (sulfuric or hydrofluoric acid), natural gas condensates, benzene, acidic water, volatile hydrocarbons or Liquefied Natural Gas (LNG). Energy utilities In the energy sector, NIKKISO centrifugal canned motor pumps are used as seal water pumps, in high-pressure...

 Open the catalog to page 5
NIKKISO Non-Seal® Pump-6

NIKKISO Non-Seal Pump – References

 Open the catalog to page 6
NIKKISO Non-Seal® Pump-7

NIKKISO Non-Seal Pump – References Reference Applications for NIKKISO Non-Seal Pumps. Industry: Chemicals Application: The production of liquid natural gas as a cooling medium NIKKISO solution: – umps with liquid recirculation P – ertical design, 75 kW motor power V Industry: Chemicals Application: High temperature NIKKISO solution: – ump with cooling jacket P Industry: Chemicals Application: Unloading from tanks and rail vehicles in paint factories NIKKISO solution: – ump with self-priming P Industry: Chemicals Application: Conveying liquids with a high melting point NIKKISO solution: – ump...

 Open the catalog to page 7
NIKKISO Non-Seal® Pump-8

NIKKISO Non-Seal Pump – Features NIKKISO centrifugal canned motor pump. In accordance with API 685. NIKKISO centrifugal canned motor pumps have been developed for the highest-pressure applications in refineries and the petrochemical sector in accordance with API 685* and ATEX**. * API 685: Sealless Centrifugal Pumps for Petroleum, Heavy Duty Chemical and Gas Industry ** ATEX: ATEX guideline (2014/34/EU) E-Monitor The LED display of the E-Monitor displays the axial and radial rotor position during pump operation. Available as a local or remote display. LED directional display for simplified startup....

 Open the catalog to page 8
NIKKISO Non-Seal® Pump-9

Flanges 150, 300, 600 and 900 lb is standard. API 685: Flanges available for ANSI/ASME, B 16.5 CL 150/300/600/900 lb RF. Developed for quadruplex nozzle forces and torques in accordance with API 685. Rotor balancing API 685: ISO 1940, G 2.5 gm-mm Impeller Highly efficient design, open or closed configurations Shaft Available in various materials and configurations Automatic axial thrust balancing Housing with central supports API 685: Design pressure of at least 40 bar with corrosion acceptance of 3 mm

 Open the catalog to page 9
NIKKISO Non-Seal® Pump-10

NIKKISO Non-Seal Pump – Components The most important components for reliability and safety. E-Monitor The NIKKISO E-Monitor has been developed to determine the condition of the hermetically sealed pump bearings during pump operation. The position of the rotor is monitored while the pump is operating. Furthermore, the technically state-of-the-art monitor can be used for preventive maintenance relating to bearing wear. Display: – eparate wear display for axial and radial bearings S – neven wear of the front or rear bearings U – ump “ON” P – irectional monitoring D Advantages: – he directional...

 Open the catalog to page 10
NIKKISO Non-Seal® Pump-11

NIKKISO Non-Seal Pump – Components Bearings-modular system NIKKISO bearings are slide bearings. The materials used range from various carbon graphites through polytetrafluorethylene (PTFE) to silicon carbide. The use of CG93, a mixture of carbon and silicon carbide, enables increased protection against wear without any brittleness. Shaft protection sleeves (hard-coated) The bearings are liquid-lubricated and designed with a groove for an improved supply of lubricant. Depending on application, the shaft protection sleeves are either plated with chromium or finished with a hardened material. The...

 Open the catalog to page 11
NIKKISO Non-Seal® Pump-12

NIKKISO Non-Seal Pump – Components Motors. Reliable motors – Protection against leakages through seal-welded and 100% leakage-proof corrosion-resistant linings. They ensure that the supplied medium does not come into contact with the stator windings or the core of the rotor. – The complete outer side of the motor is encapsulated in a second leak-proof protective shell. – Increased operating reliability through the absence of dynamic seals. – Motor cooling and bearing lubrication through the supplied medium that is circulated in the area between the rotor and stator lining. – Motor windings and...

 Open the catalog to page 12
NIKKISO Non-Seal® Pump-13

NIKKISO Non-Seal Pump – Components

 Open the catalog to page 13
NIKKISO Non-Seal® Pump-14

NIKKISO Non-Seal Pump – Pump Types For a wide variety of requirements. The NIKKISO Non-Seal Pump Types. Standard applications 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 High-viscosity liquids The pump type HV is for the use of liquids with a viscosity of > 80 cP to 200 cP. Flow rate up to 180 m³/h Head up to 200 m Motor power up to 44 kW Temperature...

 Open the catalog to page 14
*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.