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Canned Motor Pumps with explosion protection for hazardous explosive areas

Canned Motor Pumps with explosion protection are used wherever flammable or potentially explosive media need to be pumped safely – for example, in the chemical, petrochemical or energy industries. They are suitable for numerous standard applications where leak-tightness, operational safety and availability are crucial.

Thanks to their modular design / construction, Canned Motor Pumps can be flexibly configured and adapted to the specific process requirements. Different design variants allow for a precisely tailored selection depending on the fluid, temperature range and area of application – ensuring maximum safety and efficiency during operation.

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Finding the right Canned Motor Pump

Standard applications

Horizontal, shaft-seal-free volute casing pumps in process design with a hermetically sealed canned motor. Available in single-stage and multi-stage versions for a wide range of industrial applications.

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Variants by application and field of use 

High-temperature applications
High-pressure
applications Applications for low viscosities
Integrated into the tank farm and/or with low NPSHa

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Modularly configurable Canned Motor Pumps

Thanks to their modular design / construction, Canned Motor Pumps can be flexibly adapted to different process requirements. A range of frame sizes and variants ensures a tailor-made pumping solution.

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Standard applications

Standard application, single-stage

Pump capacity [Q]

max. 1600 m³/h

Delivery head [H]

max. 240 m

Material temperature [t]

–120 °C to +120 °C

Operating pressure

PN 16 to PN 50

Technical sectional drawing of a Canned Motor Pump with explosion protection, shown in grey

Type CN / CNF

Design type / Design

Single-stage standard chemical pump in accordance with EN 22858 / ISO 2858, driven by a canned motor

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Sectional drawing of an explosion protection-equipped canned motor pump, horizontal design with visible rotor and casing.

Type CNP / CNPF

Design type / Design

Single-stage centrifugal pump with canned motor in accordance with API 685, driven by a canned motor

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Standard application, multi-stage

Pump capacity [Q]

max. 350 m³/h

Delivery head [H]

max. 1200 m³/h

Material temperature [t]

–120 °C to +120 °C

Operating pressure

PN 16 to PN 100

A sectional drawing of a canned motor pump with explosion protection, showing internal components such as the rotor, stator and impeller.

Type CAM

Design type / Design

Multistage centrifugal pump with canned motor 

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Cross-section of a Canned Motor Pump with explosion protection, multi-stage, with control housing at the top

CAM-Tandem type

Design type / Design

Multistage centrifugal pump / tandem-mounted multistage pump with canned motor drive 

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Variants tailored to specific applications and areas of use

Hot applications, single-stage

Pump capacity [Q]

max. 1600 m³/h

Delivery head [H]

max. 240 m³/h

Material temperature [t]

max. +425 °C

Operating pressure

PN 16 to PN 50

Cross-sectional drawing of a Canned Motor Pump with explosion protection, showing internal components such as the rotor and pump casing.

Type CN and CNF

Design type / Design


Single-stage standard chemical pump in accordance with EN 22858 / ISO 2858, driven by a canned motor; uncooled design type with fin cooling 

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Technical sectional drawing of a Canned Motor Pump with explosion protection, flanged connections and a motor casing.

Type CN and CNF

Design type / Design

Single-stage standard chemical pump in accordance with EN 22858 / ISO 2858, driven by a canned motor
. Uncooled design type with cooling or heating jacket 

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Cross-section of a canned motor pump with explosion protection; technical cross-sectional view showing the rotor and casing.

Type CN and CNF 

Design type / Version

With hot-winding in insulation class R (max. 220°C winding temperature) or insulation class C (max. 400°C winding temperature) 

Technical sectional drawing of a Canned Motor Pump with explosion protection, side view showing internal components.

Type CNKp 

Design type / Design

Single-stage standard chemical pump in accordance with EN 22858 / ISO 2858, driven by a canned motor, with a separately mounted compact brazed heat exchanger 

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Canned motor pump with explosion protection, side technical view showing pipes and fittings

Type CNKr

Design type / Design

Single-stage standard chemical pump in accordance with EN 22858 / ISO 2858, driven by a canned motor, with a separately mounted shell-and-tube heat exchanger 

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Technical drawing of a Canned Motor Pump with explosion protection, shown in cross-section, illustrating internal components and pipe connections.

Type CNPKf

Design type / Design

Single-stage centrifugal pump with canned motor in accordance with API 685, with a separately mounted heat exchanger

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Hot applications, multi-stage

Pump capacity [Q]

max. 350 m³/h

Delivery head [H]

max. 1200 m

Material temperature [t]

max. +400 °C

Operating pressure

PN 16 to PN 100

Cross-sectional drawing of a Canned Motor Pump with explosion protection, showing internal components such as the rotor, impeller and casing.

Type CAM

Design type / Design

Multistage centrifugal pump with canned motor drive
Uncooled design type with fin cooling 

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Cross-sectional drawing of a canned motor pump with explosion protection, showing internal components such as the rotor, casing and connections.

Type CAM

Design type / Version

With hot-winding, insulation class R (max. 220 °C winding temperature) and insulation class C (max. 400 °C winding temperature) 

Cross-section of a canned motor pump with explosion protection; technical sectional drawing showing the rotor and pump casing

Type CAMKr

Design type / Design

Multistage centrifugal pump with canned motor, with a separately mounted heat exchanger

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Variants tailored to specific applications and areas of use

High-pressure applications

Pump capacity [Q]

max. 1600 m³/h

Delivery head [H] 

max. 1200 m 

Material temperature [t]

–120 °C to +360 °C

Operating pressure

max. PN 1200

Technical sectional drawing of a Canned Motor Pump with explosion protection, shown in side view

Types CNH, CNFH and CNKH

Design type / Design

Single-stage design
Designed for high system pressures

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Sectional drawing of a multi-stage Canned Motor Pump with explosion protection, shown in grey

Type CAMH

Design type / Configuration

Multi-stage design with pressure vessel for high system pressures 

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Technical sectional drawing of a Canned Motor Pump with explosion protection, side view showing the internal components.

CAMH-Tandem type

Design type / Configuration

Multi-stage design in a tandem configuration with a pressure vessel for high system pressures 

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Variants tailored to specific applications and areas of use

Applications for low viscosities

Pump capacity [Q]

max. 1600 m³/h

Delivery head [H] 

max. 2300 m 

Material temperature [t]

–120 °C to +360 °C

Operating pressure

PN 16 to PN 150

Canned Motor Pump with explosion protection on a base frame, vertical design with pipes and pressure vessel.

Type CNV and CNFV

Design type / Design

Single-stage design
Suitable for conveying compressed gases / liquefied gases 

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Vertical Canned Motor Pump with explosion protection, technical drawing showing flange connections and baseplate

CAMTV

Design type / Configuration

Multi-stage design with pressure vessel for higher system pressures
Suitable for handling compressed gases / liquefied gases

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Vertical canned motor centrifugal pump with explosion protection, comprising a motor, pump casing and pipe connections mounted on a steel frame

CAMTV-Tandem model 

Design type / Configuration

Multi-stage design in a tandem configuration with a pressure vessel for higher system pressures
. Suitable for the conveyance of compressed gases / liquefied gases

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Variants tailored to specific applications and areas of use

Integrated into the tank farm and/or low NPSHa

Pump capacity [Q]

max. 1600 m³/h

Delivery head [H] 

max. 1200 m 

Material temperature [t]

–120 °C to +250 °C

Operating pressure

PN 16 to PN 100

Technical sectional drawing of a Canned Motor Pump with explosion protection in a vertical configuration

Type TCN

Design type / Design

Single-stage standard chemical pump in accordance with EN 22858 / ISO 2858, driven by a canned motor

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Technical sectional drawing of a Canned Motor Pump with explosion protection, shown in grey.

Type TCAM

Design type / Design

Multistage centrifugal pump with canned motor drive

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Modularly configurable Canned Motor Pumps

CN and CNF type Canned Motor Pumps

Pump capacity [Q]

max. 130 m³/h

Delivery head [H]

max. 145 m

Material temperature [t]

–40 °C to +120 °C

Operating pressure

PN 16 / PN 25

motor power

max. 48 kW

Green Canned Motor Pump with explosion protection, horizontal design with flanged connection and pressure-compensating vessel

Type CN

Design type / Design

Single-stage standard chemical pump in accordance with EN 22858 / ISO 2858 with canned motor drive

The CN series is the standard version of HERMETIC Canned Motor Pumps. It is suitable for pumping common liquids with a sufficient margin above the vapour pressure (non-boiling media).

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Green Canned Motor Pump with explosion protection, horizontal design with flanged connection and stainless steel pipes

Type CNF

Design type / Design

Single-stage standard chemical pump in accordance with EN 22858 / ISO 2858 with canned motor drive 

The CNF series is designed for liquefied gases, boiling media and condensates. With an integrated auxiliary impeller and internal liquid recirculation, it is suitable for pumping liquids at pressures close to their vapour pressure. 

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Pump design

With our expert tool, you can quickly find the right pump solution for your application. Based on your process data, you will receive an initial shortlist of suitable series and models.

Design a pump now

CAM-type Canned Motor Pump 

Pump capacity [Q]

max. 40 m³/h

Delivery head [H]

max. 295 m

Material temperature [t]

–40 °C to +120 °C

Operating pressure

PN 40

motor power

max. 48 kW

Green horizontal Canned Motor Pump with explosion protection, multistage, with flanged connections and terminal box

Type CAM

Design type / Design

Multistage centrifugal pump / segmented pump with canned motor drive

The CAM type is suitable for both standard applications and for pumping liquids at pressures close to their vapour pressure.

Downloads

Pump design

With our expert tool, you can quickly find the right pump solution for your application. Based on your process data, you will receive an initial shortlist of suitable series and models.

Design a pump now

Get in touch with our team

Are you looking for the right pump for your process requirements, or do you need help with the design? Please contact our team of experts.