ISO Magnetic Drive Pumps
Sealless centrifugal pumps for leak-free handling of corrosive, toxic & high-purity fluids.
ISO magnetic drive pumps are engineered in line with DIN EN ISO 2858 dimensional guidance and ISO 15783 sealless pump principles for reliable chemical process performance, safer operation and simplified maintenance.
Engineered for Demanding Chemical Duty
Kweng ISO magnetic drive pumps are designed for safe, reliable and leak-free handling of hazardous industrial fluids. Their sealless design helps reduce maintenance risks while supporting cleaner and more secure process operation.
Why Choose Kweng ISO Magnetic Drive Pumps
Built for industries that require leak-free performance, chemical compatibility and dependable long-term operation.
Sealless Design
Eliminates conventional mechanical seal leakage risks.
ISO Based Engineering
Designed in line with DIN EN ISO 2858 / ISO 15783 guidance.
Chemical Duty Reliability
Suitable for corrosive, toxic and high-purity fluids.
Flexible Configuration
Available in close coupled and open coupled versions.
High Performance Range
Built for demanding flow, head, temperature and pressure duties.
Global Application Suitability
Designed for domestic and export-oriented industrial use.
Technical Features at a Glance
The Kweng ISO series is built to meet the performance needs of modern process plants across a wide range of operating conditions.
- Maximum flow up to 350 m³/hr
- Maximum head up to 140 m
- System pressure up to 105 bar.g
- Speed up to 3600 rpm
- Temperature range from -80°C to +350°C
- Closed impeller design
- Samarium Cobalt magnets
- SSiC bearings
- IEC or NEMA motor mounting
- PN16 RF standard, optional PN40 RF ISO flanges
Key Technical Data of Product
Sealless Magnetic Drive Pumps - ISO
- Kweng Sealless Magnetic Drive Pumps - ISO are end-suction, sealless magnetic drive centrifugal pumps designed as per DIN EN ISO 2858/15783 standard.
- Kweng Sealless Magnetic Drive Pumps - ISO are a modular range of chemical service pumps designed to cover a wide range of duty and application bases using the minimum of pump models by maximizing the interchangeability of components.
- The range is specifically designed for maximum part interchangeability and ease of onsite service and has a wide number of site upgradable features.
Kweng Sealless Magnetic Drive Pumps - ISO are categorized into two series:
- IGSP - General Service Sealless Magnetic Drive Pumps - IGSP Series pumps are designed to cater to clean fluid services with no special requirements. The IGSP Series pumps are capable of handling solids up to 100 micron particle size < 3% w/w.
- ICSP - Critical Service Sealless Magnetic Drive Pumps - ICSP Series pumps are designed to cater to critical fluid services that require special arrangements such as heating/cooling jackets, solids handling, CIP flush, dual containment, “ENDRY” bearings, etc. The ICSP Series pumps are designed for handling solids/slurries with up to 100 micron particle size < 27% w/w and up to 6 mm particle size < 7% w/w.
Material of Construction:
- Standard
- Carbon Steel, Stainless Steel, Duplex Stainless Steel, Alloy 20, Alloy C276, Nickel-Based Materials, Titanium, etc.
- Product Lubricated Journal Bearings: Silicon Carbide (SSiC)
- Customized materials (e.g., carbon, TC, etc.) on demand.
Applications:
- Kweng Sealless Magnetic Drive Pumps - ISO can handle a broad range of process applications, such as transfer, circulation, vacuum distillation, high-pressure reactions, slurry, heat recovery skids, boilers (thermic fluid), lyophilizers, liquid terminals, tanker loading and unloading skids, negative suctions, submerged, cryogenic and many more.
The Kweng Sealless Magnetic Drive Pumps – ISO Series are designed for reliable operation across challenging chemical process duties.
| Maximum Flow | up to 350 m3/hr (1550 GPM) |
| Maximum Head | up to 140 m (460 FT) |
| Liquid Temperature | -80 °C to + 350°C (-110°F to +660°F) |
| Maximum Power | up to 200 hp> |
| System Pressures | up to 105 bar(g) (1520psig) |
| Speeds | up to 3600 rpm |
| Impeller | Closed |
| Bearings | SSiC, ‘ENDRY’ SSiC opt. for Upset or Dry-run Condition |
| Connections | Pn 16 RF std. or opt. Pn 40 RF ISO Flanges |
| Magnets | Samarium Cobalt |
| Motor | NEMA or IEC Frame Mounted |
| Mounting | Close Coupled OR Open Coupled |
| Steam Jackets | Optional |
| External Flush | Optional |
| Recirculated Flush & Vent | Optional |
| Secondary Containment | Optional |
| Cyclone Seperator | Optional for Improved Solids Handling |
Performance Curves for Kweng Sealless Magnetic Drive Pumps - ISO
The ISO magnetic drive pump range is available across multiple operating speeds to suit different plant duties and hydraulic requirements.
Sectional View for Kweng Sealless Magnetic Drive Pumps - ISO
The sectional design highlights the key working components that support dependable sealless performance, including the impeller, containment shell, magnet assembly, shaft system and bearing arrangement.
Impellers
Standard close impellers, single piece castings. Special non clogging type impellers design for solids handling & freezing media applications.
Casing Wear Rings
Fully replaceable wear rings. Standard carbon & advance PTFE materials.
Casing
Standard ANSI/ISO design models. Single piece castings with drain/vent hubs. Available with jackets for freezing media applications.
Pump Shaft
Modular heavy duty pump shafts with standard wetted MOC's. Also available in Duplex SS, Hastelloy & Titanium.
Bush Bearing Set
Concentrically located hydrodynamic heavy duty bush bearings, designed to tolerate relative thermal expansions. Standard SSiC materials. Special "ENDRY" bearings for dry running capabilities available.
Bush Holder
Assembled to the back plate internally. It is not supported on the containment shell.
Casing Gaskets
Fully confined gaskets. Various Styles, PTFE & metallic gaskets available.
Back Plates
Heavy duty back plates made from solid plates designed to handle the internal rotary assembly.
Driven / Inner Magnet
Fully sheathed driven/ inner magnet rotors with standard wetted MOC's made from solid piece. Standard magnets are samarium cobalt.
Driver / Outer Magnet
Heavy duty rotor made from a solid bar. Standard materials EN8 with samarium cobalt magnets. Magnet rings fully sheathed for longevity.
Intermediate Lantern
Heavy duty single piece cast design with inbuilt lifting hook & modular foot. Designed to accommodate open coupled as well as all types of international motor frames with adapters for closed coupled design.
Containment Shell
Constructed in accordance with ASME VIll international standards. Certified with PED 2014/68/EU.
Materials of Construction & Design Features
Material selection can be matched to fluid chemistry, temperature and operating conditions for better durability and process compatibility. Design features options help adapt the pump for more demanding process conditions and application-specific requirements.
- Carbon Steel
- Stainless Steel
- Duplex Stainless Steel
- Alloy 20
- Alloy C276
- Nickel-Based Alloys
- Titanium
- Customized materials on request
- Steam jackets
- External flush
- Recirculated flush and vent
- Secondary containment
- Cyclone separator for improved solids handling
- Advanced bearing arrangements for critical duty
Applications Across Process Industries
Kweng ISO magnetic drive pumps are suitable for demanding fluid handling duties across a wide range of industrial sectors.
- Chemicals
- Petrochemicals
- Pharmaceuticals
- Textiles
- Water Treatment
- Agrochemicals
- Electronics
Suitable for transfer, circulation, solvent handling, reaction systems, utility skids and other critical process applications.
Why Industrial Buyers Choose Kweng
Kweng provides application-focused sealless magnetic drive pump solutions for both Indian and international markets. Our ISO range is designed to support leak-free operation, consistent performance and long-term lifecycle value in demanding process environments.
- Application-based selection support
- Domestic and export market supply
- Material and configuration flexibility
- Technical support for industrial process duty











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Frequently Asked Questions
What is an ISO magnetic drive pump?
An ISO magnetic drive pump is a sealless centrifugal pump designed in line with ISO dimensional and design guidance for leak-free industrial fluid handling.
What are the main benefits of a sealless magnetic drive pump?
The main benefits include leak-free operation, improved safety, reduced maintenance and better suitability for corrosive, toxic and high-purity fluids.
Where are ISO magnetic drive pumps used?
They are widely used in chemical, petrochemical, pharmaceutical, water treatment, agrochemical, electronics and textile industries.
What fluids can Kweng ISO magnetic drive pumps handle?
These pumps are suitable for corrosive chemicals, toxic liquids, solvents and high-purity process fluids, subject to material compatibility.
What is the maximum flow and head available in the ISO pump range?
Kweng ISO magnetic drive pumps are available up to 350 m³/hr flow and up to 140 m head, depending on the model and duty condition.
What material options are available?
Material options include carbon steel, stainless steel, duplex stainless steel, Alloy 20, Alloy C276, nickel-based alloys and titanium.
Are close coupled and open coupled versions available?
Yes. Kweng ISO magnetic drive pumps are available in both close coupled and open coupled configurations.
How do I choose the right ISO magnetic drive pump?
Selection should be based on flow, head, temperature, pressure, fluid chemistry, solids content and site conditions. Kweng can support model selection based on your application.
Request a Quote for ISO Magnetic Drive Pumps
Looking for a reliable ISO magnetic drive pump for corrosive, hazardous or toxic fluid handling? Contact Kweng for product selection support, technical discussion and quotation.