Optimex

Canned Motor Pump Manufacturer for Hazardous and Critical Fluids

OPTIMEX is a canned motor pump manufacturer specializing in the engineering and manufacturing of custom sealless centrifugal pumps for hazardous, toxic, flammable, volatile, corrosive, high-temperature, cryogenic, high-pressure, and other critical process fluids.

Designed for applications where fluid containment, reliability, and process safety are essential, OPTIMEX canned motor pumps combine the centrifugal pump and electric motor within a compact, hermetically contained assembly. The absence of a mechanical shaft seal eliminates a major potential leakage path and provides a reliable solution for severe and safety-critical industrial services.

OPTIMEX engineers API 685 and ISO 15783 canned motor pumps according to each project’s hydraulic, mechanical, electrical, material, safety, and installation requirements. Custom configurations can be developed for chemical, petrochemical, oil and gas, energy, cryogenic, nuclear, and other demanding industrial applications.

From application engineering and in-house manufacturing to performance testing, repair, retrofit, and replacement of aging or obsolete pumps, OPTIMEX supports customers throughout the pump life cycle and develops solutions adapted to both new installations and existing equipment.

manufacturer centrifugal pump dangerous liquids

Custom Canned Pumps

Custom Canned Motor Pumps for Hazardous Fluids and Critical Applications

OPTIMEX engineers custom canned motor pumps for hazardous fluids and critical fluid applications across the chemical, petrochemical, oil and gas, energy, cryogenic, nuclear, and other demanding industrial sectors.

Pump design and materials can be adapted to the fluid properties, operating conditions, containment requirements, and project specifications.

Canned motor pumps for chemicals can handle acids, bases, solvents, chlorinated compounds, toxic intermediates, specialty chemicals, and carcinogenic, mutagenic, or reproductive toxicants. Wetted materials, bearings, gaskets, and the internal circulation plan must be selected according to corrosion, lubricity, crystallization, and solids risks.

This makes sealless chemical pumps suitable for services where fugitive emissions and operator exposure must be minimized.

OPTIMEX engineers custom canned motor pumps for flammable liquids and volatile liquids, hydrocarbons, LPG, low-boiling-point fluids, and gases handled in their liquefied phase.

Pump hydraulics, internal circulation, motor cooling, materials, and operating conditions can be engineered according to the fluid’s vapor pressure and process requirements. Maintaining sufficient pressure and controlling internal heat generation are particularly important to help limit flashing, vapor formation, cavitation, and loss of bearing lubrication.

For applications requiring specialized low-temperature pumping solutions, OPTIMEX also develops pumps for cryogenic and liquefied-gas services.

OPTIMEX engineers custom canned motor pumps for cryogenic liquids and radioactive fluids requiring enhanced containment, material compatibility, reliability, monitoring, and traceability.

Dedicated configurations can be developed according to the fluid, operating temperature, pressure, installation requirements, and applicable project specifications. OPTIMEX expertise includes sealless pumping solutions for cryogenic services such as LNG and industrial liquefied gases, as well as critical nuclear applications involving radioactive fluids.

OPTIMEX designs and manufactures custom canned motor pumps for chemical processing, petrochemical plants, refineries, oil and gas facilities, LNG and industrial-gas installations, power generation, and other critical energy applications.

Each sealless pumping solution can be engineered according to the process fluid, hydraulic duty, operating pressure and temperature, hazardous-area requirements, materials, installation constraints, and applicable project specifications.

OPTIMEX also develops compact, custom-engineered canned motor pumping solutions for marine, space, and other safety-critical applications involving severe or non-standard operating conditions.

Industrial Applications

Custom Canned Motor Pump Configurations for Industrial Applications

Industrial canned motor pumps are available in multiple configurations to match process layout, suction conditions, required head, fluid properties, and installation space.

OPTIMEX engineers sealless pumping systems around each application’s operating requirements and interfaces.

OPTIMEX engineers horizontal, vertical, and submerged canned motor pumps according to process layout, suction conditions, vessel configuration, available installation space, and hydraulic requirements.

Horizontal canned motor pumps can provide a compact solution for skid-mounted units and conventional process installations, while vertical canned motor pumps can be engineered for restricted floor space or installation in or above tanks, vessels, sumps, pits, and charge barrels.

Submerged canned motor pumps can be designed to operate within the liquid inventory. Pump orientation, inlet geometry, immersion depth, suction pressure, available NPSH, and vaporization risk are evaluated according to the requirements of each application.

OPTIMEX engineers single-stage, multistage, and self-priming canned motor pumps according to the required flow rate, total dynamic head, suction conditions, fluid properties, and installation constraints.

Single-stage canned motor pumps can be developed for industrial fluid-transfer applications requiring moderate differential head, while multistage configurations use several impellers in series to achieve higher total dynamic head.

For applications where the pump is installed above the suction vessel, self-priming canned motor pumps or side-channel canned motor pump configurations can be engineered to evacuate air from the suction line after the required initial filling.

The hydraulic configuration is selected and adapted according to the complete operating range and project-specific process requirements.

OPTIMEX develops high-pressure canned motor pumps, extreme-temperature pumps, and custom-engineered sealless pumps for difficult fluids and severe process conditions. Designs can be engineered for hot, cryogenic, high-static-pressure, corrosive, hazardous, and other demanding fluid services.

Hydraulic design, materials, motor sizing, internal cooling, bearing lubrication, and circulation arrangements can be adapted to the operating pressure, temperature, fluid properties, and specific requirements of each project.

Specific engineered units can reach design pressures up to 5,800 psi (400 bar); this is a project-dependent capability, not the standard range of every pump.

API 685

Custom API 685 Canned Motor Pumps for US Projects

OPTIMEX engineers custom canned motor pumps for US projects requiring API 685, ISO 15783, hazardous-location requirements, US piping interfaces, and customer-specific engineering specifications.

Each project is evaluated according to its hydraulic duty, process fluid, operating and design conditions, installation requirements, applicable standards, and required certification level.

Pump design, materials, electrical characteristics, instrumentation, testing, documentation, and interfaces can be adapted to the technical requirements of the application.

OPTIMEX engineers canned motor pumps according to applicable API 685 and ISO 15783 requirements, combined with customer specifications, process data sheets, hazardous-area requirements, inspection plans, and project-specific testing criteria.

Depending on the project, engineering requirements can cover pump construction, pressure containment, materials, bearings, internal circulation, instrumentation, inspection, testing, and technical documentation.

For integration into US piping systems, suction and discharge connections can be supplied in accordance with applicable ASME requirements, including ASME B16.5 flanges with the required pressure class, facing, material group, and pressure-temperature rating.

For US and North American projects, OPTIMEX evaluates the electrical and hazardous-area requirements applicable to each canned motor pump configuration, including specified voltage, 60 Hz frequency, Class/Division or Zone classification, gas group, and temperature class.

Applicable UL and CSA requirements can be reviewed according to the selected pump, motor configuration, hazardous location, and project specifications. For international projects, IECEx and ATEX requirements can also be considered where applicable.

Available markings and certifications depend on the selected canned motor pump configuration and project requirements. The exact listing, marking, protection concept, certificate scope, and compatibility with the proposed equipment are therefore confirmed during project review.

Requirements outside an existing certification scope may be evaluated through project-specific engineering and certification procedures.

Engineering, Manufacturing & Testing

OPTIMEX Canned Motor Pump Engineering, Manufacturing, and Testing Capabilities

OPTIMEX combines canned motor pump engineering, in-house manufacturing, assembly, and testing capabilities to deliver reliable pumping solutions for hazardous fluids and demanding industrial applications.

Each pump is developed according to the customer’s process data, operating conditions, technical specifications, and applicable standards.

Every project begins with an analysis of the process fluid, hydraulic duty, installation layout, and operating constraints.

OPTIMEX evaluates fluid properties, required flow rate, total dynamic head, suction conditions, pressure, temperature, and available NPSH.

OPTIMEX engineering teams perform canned motor pump sizing, hydraulic design, mechanical and electrical engineering, material selection, and definition of the internal motor-cooling and bearing-lubrication circuit.

Pump geometry, hydraulic connections, instrumentation, and interfaces can be customized according to space limitations, installation constraints, customer specifications, and applicable standards.

This application-specific engineering approach enables OPTIMEX to develop custom canned motor pumps for severe, critical, and non-standard services where standard pump configurations may not meet the complete process requirements.

OPTIMEX controls key manufacturing operations internally, including stator winding, motor encapsulation, rotor manufacturing, and the production of pressure-retaining components. Capabilities also include welding, leak-tight assembly, rotor balancing, hydrodynamic thrust balancing, and complete electrical and mechanical assembly.

This integrated manufacturing process helps control critical tolerances, motor performance, pressure integrity, and the reliability of the hermetically contained pump assembly.

Before shipment, pumps can undergo hydraulic performance, electrical, and leak-tightness testing, together with dimensional and visual inspections. Customer acceptance testing may be performed according to the approved inspection and test plan.

Quality documentation can include test reports, material certificates, inspection records, and material and component traceability. Customer-specific pump testing requirements can also be incorporated according to project specifications and applicable standards.

Replacement, Retrofit & Repair

Canned Motor Pump Replacement, Retrofit, and Repair Services

Aging, obsolete, or discontinued canned motor pumps can create significant challenges for industrial operators, particularly when existing equipment is integrated into critical process piping, instrumentation, foundations, and electrical systems.

OPTIMEX provides canned motor pump replacement, canned motor pump retrofit, canned motor pump repair, and refurbishment services for critical and severe-service applications.

Depending on the condition of the existing equipment and the process requirements, OPTIMEX can evaluate whether the appropriate solution is to repair or refurbish the existing pump or engineer a new replacement canned motor pump adapted to the installation.

For replacement projects, the engineering team can review the existing pump reference, process data, hydraulic duty, fluid properties, operating pressure and temperature, materials, electrical requirements, applicable standards, and installation interfaces.

When an existing canned motor pump becomes obsolete, unreliable, or difficult to maintain, OPTIMEX can engineer a replacement canned motor pump based on the process requirements and constraints of the existing installation.

The engineering review can include the required flow rate and total dynamic head, suction conditions, process fluid, operating and design pressures and temperatures, materials, motor characteristics, hazardous-area requirements, and applicable standards.

Replacement solutions can be developed for aging or obsolete canned motor pumps used in chemical, petrochemical, oil and gas, energy, cryogenic, nuclear, and other critical industrial applications.

The objective is to provide a technically suitable replacement while taking into account the interfaces and constraints of the existing pumping system.

For installations where extensive piping or equipment modifications would be difficult or costly, OPTIMEX can develop canned motor pump retrofit and drop-in replacement solutions.

Retrofit and drop-in replacement pumps can be engineered to preserve or adapt existing hydraulic connections, footprints, process interfaces, piping, foundations, instrumentation, and electrical systems when replacing aging or obsolete equipment.

This engineering approach can help reduce modifications to the surrounding installation while allowing the replacement pump to meet the required hydraulic, mechanical, electrical, material, containment, and safety requirements.

Each canned motor pump retrofit project is evaluated individually according to the existing equipment, process conditions, installation constraints, and customer specifications.

When complete replacement is not required, OPTIMEX can provide canned motor pump repair and refurbishment services to support the continued operation of existing equipment.

Services may include:

  • technical assistance and troubleshooting,
  • pump inspection and failure analysis,
  • canned motor pump repair and refurbishment,
  • replacement parts and spare-parts packages,
  • assessment of worn or damaged components,
  • commissioning and operational support.

Inspection and failure analysis can help determine the condition of the pump and identify whether repair, refurbishment, component replacement, or complete pump replacement is the most appropriate solution.

OPTIMEX supports customers throughout the pump life cycle, from the engineering and manufacturing of new canned motor pumps to the retrofit, repair, refurbishment, and replacement of existing, aging, or obsolete canned motor pumps.

Choose OPTIMEX

Why Choose OPTIMEX as Your Canned Motor Pump Manufacturer ?

Choosing the right canned motor pump manufacturer is critical when fluid containment, equipment reliability, and process safety cannot be compromised.

OPTIMEX combines specialized engineering, custom manufacturing, and international technical support to provide sealless pump solutions for severe and safety-critical industrial applications.

Since 1998, OPTIMEX has specialized in hermetically sealed pumps and leak-tight pumping technology.

This experience supports the design of reliable equipment for hazardous, toxic, flammable, corrosive, radioactive, high-pressure, and extreme-temperature fluids.

OPTIMEX has completed projects for chemical processing, petrochemical, oil and gas, energy, nuclear, cryogenic, space, and other critical applications worldwide. Each pump benefits from extensive knowledge of fluid containment, hydrodynamic bearings, integrated electric motors, and internal cooling and lubrication circuits.

OPTIMEX develops custom canned motor pumps when standard pumping equipment cannot meet the hydraulic, mechanical, electrical, material, containment, or installation requirements of the application.

Its engineering team evaluates difficult fluid properties, extreme operating pressures and temperatures, hazardous-area constraints, suction conditions, containment requirements, materials, and installation interfaces to define a pump configuration adapted to the project.

Hydraulic, mechanical, electrical, and material specifications can be customized to the requirements of EPC contractors, OEMs, engineering companies, and industrial end users for severe, critical, and non-standard pumping applications.

Request a Canned Motor Pump Technical Review

Looking for a canned motor pump manufacturer for a custom pump, API 685 project, replacement pump or retrofit solution for a hazardous or critical fluid application ?

Submit your process data, pump data sheet, technical specifications, or existing pump reference to OPTIMEX.

Our engineering team will evaluate your hydraulic duty, fluid properties, operating and design pressure and temperature, NPSH conditions, materials, applicable standards, hazardous-area requirements, electrical requirements, and installation interfaces to determine the most appropriate canned motor pump solution for your project.

Discuss Your Canned Motor Pump Project

mechanical seal pump retrofit into canned motor pump