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CL/CLB/CBH/CB
SPX /Johnson
Cast iron, Stainless steel, Bronze alloys
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A Heated Water Circulation System is the core technology for precise temperature control in modern horticulture greenhouses. Its purpose is to create and maintain the optimal, uniform climate required for plant growth by circulating heated water through a pipe network.
This system is typically powered by a central boiler or a buffer tank storing hot water. The heat is then distributed to all sections of the greenhouse via a sophisticated network managed by circulation pumps and a related control system. This technology is key to achieving high-efficiency, energy-conscious climate control in today's advanced greenhouse operations.
The system operates on a closed-loop circuit, ensuring efficient and controlled heat delivery. The core process is as follows:
Heat is primarily generated by a boiler burning natural gas.
The boiler's burner also produces CO₂ gas, which is often channeled into the greenhouse to enhance plant growth.
Heat can also be supplied by external sources, such as a Combined Heat and Power (CHP) unit or a district heating system.
Generated heat can be temporarily stored in a large buffer tank for on-demand use.
If the heat comes from an external source, or to isolate the boiler circuit from the greenhouse circuit, the heat is transferred via a heat exchanger.
Circulation Pumps act as the "heart" of the system, driving the hot water through the entire pipe network.
A manifold unit directs the hot water to different zones within the greenhouse.
An intelligent control management system continuously adjusts the flow and temperature based on ambient conditions and the selected growing program, ensuring each zone receives its required amount of heat.
SPX Johnson Pump's Horticulture range is designed around a strong modular concept, offering high component interchangeability. The series consists of two main structural types, comprising four primary product families.
Combiline - CL
CombilineBloc - CLB
CombiBlocHorti - CBH
CombiBloc - CB
The four pump series share two common Back-Pull-Out (BPO) units, enabling easy maintenance without disconnecting the pipes.
Features a stainless steel extended motor shaft.
The impeller is mounted directly onto the motor shaft.
Designed with centering bosses for optimal motor alignment and reduced heat transfer to the motor.
Uses a standard IEC flange motor.
A stainless steel stub shaft is fitted onto the motor shaft to drive the impeller.
Mechanical Seal: All pumps are fitted with a rubber bellows mechanical seal per EN 12756, with Carbon/Silicon Carbide faces, suitable for high temperatures.
Electric Motor: Motors are suitable for European voltages, feature protection class IP55, and are available in various speeds (4-pole/6-pole), two-speed (Dahlander connection), and frequency-controlled options.
| Model | CL/CLB | CBH/CB | |
| Max. capacity | 50Hz | 400 m³/h | 600 m³/h |
| 60Hz | 500 m³/h | 800 m³/h | |
| Delivery head | 50Hz | 1 - 28 m | 1 - 35 m |
| 60Hz | 2 - 40 m | 2 - 50 m | |
| Max. temperature | 140℃ | 140℃ | |
| Max. working pressure | 6 bar (ND6) 10 bar (ND10) | 10 bar (ND10) | |
| Materials | pump casing | EN-GJL-250 (GG25) | EN-GJL-250 (GG25) |
| impeller | EN-GJL-200 (GG20) | EN-GJL-200 (GG20) | |
| motor shaft | X17CrNi 16-2 (1.4057) | X17CrNi 16-2 (1.4057) | |
| stub shaft | X2CrNiMo17.12.2 (1.4404) | X2CrNiMo17.12.2 (1.4404) | |
| shaft sleeve | G-CuSn7ZnPb (Rg 7) | G-CuSn7ZnPb (Rg 7) | |
| Nominal motor speed | 1450 min-1, 50 Hz 4 poles 950 min-1, 50 Hz 6 poles 1750 min-1, 60 Hz 4 poles 1150 min-1, 60 Hz 6 poles | ||
| 2 Speed motor with Dahlander connection | 1450/950 min-1, 50 Hz 4/6 poles 1750/1150 min-1, 60 Hz 4/6 poles | ||
| Frequency control wall mounted | from 1.1 kW, range 10 to 60 Hz | ||
| Electric motor protection class | IP55 | ||
| Electric motor voltage | 230/400 V (≤ 1.5 kW), 50 Hz 400/695 V (≥ 2.2 kW), 50 Hz 277/480 V (≤ 1.5 kW), 60 Hz 480/830 V (≥ 2.2 kW), 60 Hz other voltages/speeds on request | ||
| Mechanical seal | EN 12756 (DIN 24960), AQ1EGG carbon/silicon carbide, EPDM bellows | ||
Combines the highest operational reliability with optimal energy efficiency, making them the ideal choice for both heating and cooling systems in greenhouses.
Hydraulic parts are CFD-optimized (Computational Fluid Dynamics), ensuring performance meets or exceeds design specifications.
Frequency-controlled motor drives adjust pump speed to actual demand, drastically reducing energy consumption.
Example: A 20% reduction in motor speed can lead to approximately 50% energy savings.
Availability of two-speed motors (Dahlander connection) provides a simple and effective method for energy reduction.
Optional insulation packages for pumps and valves minimize heat loss, saving hundreds of cubic meters of gas annually.
Partnership with Danfoss provides advanced, service-friendly VLT® HVAC Drive FC 102 frequency controllers.
Features like Automatic Motor Adaptation (AMA) and Automatic Energy Optimization (AEO) enable quick commissioning and optimal performance.
Pumps can smoothly operate at different speeds and duty points, continuously adapting to the varying climate demands of a greenhouse.
Built on a strong modular concept, allowing for a high degree of interchangeability of components (e.g., impeller, seal, drive section) across different pump families (CL, CLB, CBH, CB).
This simplifies maintenance, reduces spare parts inventory, and increases system flexibility.
Pumps can be installed in various horizontal or vertical positions between pipeline sections, providing layout flexibility.
Available as in-line pumps (CL/CLB) for straight pipelines or as close-coupled, foot-mounted pumps (CBH/CB) for compact spaces.
Pump Casing: EN-GJL-250 (GG25)
Impeller: EN-GJL-200 (GG20)
Motor Shaft: Stainless Steel X17CrNi16-2 (1.4057)
Mechanical Seal: EN 12756 compliant, bellow-type with carbon/silicon carbide, ensuring long service life.
The "Hydraulic Investigator" pump selection software allows for precise pump choice based on specific system criteria.
It can simulate variable speed operation, compare alternatives, and provide direct read-outs of power consumption reductions, leading to substantial energy cost savings.
Backed by worldwide service expertise and online support.
The drive's Local Control Panel (LCP) supports 27 display languages and an intuitive menu structure for easy operation globally.
During the last decades extensive research and constant innovation lead to the introduction of more and more technological systems in the greenhouse.
These developments turned greenhouse activities into a high-tech technology that nowadays is exported worldwide. This technology includes the pump circulation systems and related control systems.
Thanks to advanced technology, greenhouse growing conditions can be precisely controlled. Efficient temperature regulation is essential, relying on the reliable performance and low energy consumption of circulation pumps. SPX FLOW’s Johnson Pump series offers exceptional reliability and efficiency, ideal for both heating and cooling systems.
The system operates on a closed-loop circuit, ensuring efficient and controlled heat delivery. The core process is as follows:
It circulates hot water through the greenhouse heating system to maintain consistent temperatures, ensuring ideal growing conditions for plants.
SPX FLOW offers four main types: CombiLine (CL), CombiLineBloc (CLB), CombiBlocHorti (CBH), and CombiBloc (CB), available as in-line or close-coupled monobloc designs.
The pumps handle up to 140°C and work at pressures up to 10 bar, depending on the model and configuration.
Pump casings and impellers are made from cast iron (EN-GJL-250/200), while shafts and sleeves use stainless steel and bronze alloys for durability.
The pumps are produced by SPX FLOW (Netherlands), with Changzhou Top Greenhouse Co., Ltd. as the exclusive distributor in China.
A Heated Water Circulation System is the core technology for precise temperature control in modern horticulture greenhouses. Its purpose is to create and maintain the optimal, uniform climate required for plant growth by circulating heated water through a pipe network.
This system is typically powered by a central boiler or a buffer tank storing hot water. The heat is then distributed to all sections of the greenhouse via a sophisticated network managed by circulation pumps and a related control system. This technology is key to achieving high-efficiency, energy-conscious climate control in today's advanced greenhouse operations.
The system operates on a closed-loop circuit, ensuring efficient and controlled heat delivery. The core process is as follows:
Heat is primarily generated by a boiler burning natural gas.
The boiler's burner also produces CO₂ gas, which is often channeled into the greenhouse to enhance plant growth.
Heat can also be supplied by external sources, such as a Combined Heat and Power (CHP) unit or a district heating system.
Generated heat can be temporarily stored in a large buffer tank for on-demand use.
If the heat comes from an external source, or to isolate the boiler circuit from the greenhouse circuit, the heat is transferred via a heat exchanger.
Circulation Pumps act as the "heart" of the system, driving the hot water through the entire pipe network.
A manifold unit directs the hot water to different zones within the greenhouse.
An intelligent control management system continuously adjusts the flow and temperature based on ambient conditions and the selected growing program, ensuring each zone receives its required amount of heat.
SPX Johnson Pump's Horticulture range is designed around a strong modular concept, offering high component interchangeability. The series consists of two main structural types, comprising four primary product families.
Combiline - CL
CombilineBloc - CLB
CombiBlocHorti - CBH
CombiBloc - CB
The four pump series share two common Back-Pull-Out (BPO) units, enabling easy maintenance without disconnecting the pipes.
Features a stainless steel extended motor shaft.
The impeller is mounted directly onto the motor shaft.
Designed with centering bosses for optimal motor alignment and reduced heat transfer to the motor.
Uses a standard IEC flange motor.
A stainless steel stub shaft is fitted onto the motor shaft to drive the impeller.
Mechanical Seal: All pumps are fitted with a rubber bellows mechanical seal per EN 12756, with Carbon/Silicon Carbide faces, suitable for high temperatures.
Electric Motor: Motors are suitable for European voltages, feature protection class IP55, and are available in various speeds (4-pole/6-pole), two-speed (Dahlander connection), and frequency-controlled options.
| Model | CL/CLB | CBH/CB | |
| Max. capacity | 50Hz | 400 m³/h | 600 m³/h |
| 60Hz | 500 m³/h | 800 m³/h | |
| Delivery head | 50Hz | 1 - 28 m | 1 - 35 m |
| 60Hz | 2 - 40 m | 2 - 50 m | |
| Max. temperature | 140℃ | 140℃ | |
| Max. working pressure | 6 bar (ND6) 10 bar (ND10) | 10 bar (ND10) | |
| Materials | pump casing | EN-GJL-250 (GG25) | EN-GJL-250 (GG25) |
| impeller | EN-GJL-200 (GG20) | EN-GJL-200 (GG20) | |
| motor shaft | X17CrNi 16-2 (1.4057) | X17CrNi 16-2 (1.4057) | |
| stub shaft | X2CrNiMo17.12.2 (1.4404) | X2CrNiMo17.12.2 (1.4404) | |
| shaft sleeve | G-CuSn7ZnPb (Rg 7) | G-CuSn7ZnPb (Rg 7) | |
| Nominal motor speed | 1450 min-1, 50 Hz 4 poles 950 min-1, 50 Hz 6 poles 1750 min-1, 60 Hz 4 poles 1150 min-1, 60 Hz 6 poles | ||
| 2 Speed motor with Dahlander connection | 1450/950 min-1, 50 Hz 4/6 poles 1750/1150 min-1, 60 Hz 4/6 poles | ||
| Frequency control wall mounted | from 1.1 kW, range 10 to 60 Hz | ||
| Electric motor protection class | IP55 | ||
| Electric motor voltage | 230/400 V (≤ 1.5 kW), 50 Hz 400/695 V (≥ 2.2 kW), 50 Hz 277/480 V (≤ 1.5 kW), 60 Hz 480/830 V (≥ 2.2 kW), 60 Hz other voltages/speeds on request | ||
| Mechanical seal | EN 12756 (DIN 24960), AQ1EGG carbon/silicon carbide, EPDM bellows | ||
Combines the highest operational reliability with optimal energy efficiency, making them the ideal choice for both heating and cooling systems in greenhouses.
Hydraulic parts are CFD-optimized (Computational Fluid Dynamics), ensuring performance meets or exceeds design specifications.
Frequency-controlled motor drives adjust pump speed to actual demand, drastically reducing energy consumption.
Example: A 20% reduction in motor speed can lead to approximately 50% energy savings.
Availability of two-speed motors (Dahlander connection) provides a simple and effective method for energy reduction.
Optional insulation packages for pumps and valves minimize heat loss, saving hundreds of cubic meters of gas annually.
Partnership with Danfoss provides advanced, service-friendly VLT® HVAC Drive FC 102 frequency controllers.
Features like Automatic Motor Adaptation (AMA) and Automatic Energy Optimization (AEO) enable quick commissioning and optimal performance.
Pumps can smoothly operate at different speeds and duty points, continuously adapting to the varying climate demands of a greenhouse.
Built on a strong modular concept, allowing for a high degree of interchangeability of components (e.g., impeller, seal, drive section) across different pump families (CL, CLB, CBH, CB).
This simplifies maintenance, reduces spare parts inventory, and increases system flexibility.
Pumps can be installed in various horizontal or vertical positions between pipeline sections, providing layout flexibility.
Available as in-line pumps (CL/CLB) for straight pipelines or as close-coupled, foot-mounted pumps (CBH/CB) for compact spaces.
Pump Casing: EN-GJL-250 (GG25)
Impeller: EN-GJL-200 (GG20)
Motor Shaft: Stainless Steel X17CrNi16-2 (1.4057)
Mechanical Seal: EN 12756 compliant, bellow-type with carbon/silicon carbide, ensuring long service life.
The "Hydraulic Investigator" pump selection software allows for precise pump choice based on specific system criteria.
It can simulate variable speed operation, compare alternatives, and provide direct read-outs of power consumption reductions, leading to substantial energy cost savings.
Backed by worldwide service expertise and online support.
The drive's Local Control Panel (LCP) supports 27 display languages and an intuitive menu structure for easy operation globally.
During the last decades extensive research and constant innovation lead to the introduction of more and more technological systems in the greenhouse.
These developments turned greenhouse activities into a high-tech technology that nowadays is exported worldwide. This technology includes the pump circulation systems and related control systems.
Thanks to advanced technology, greenhouse growing conditions can be precisely controlled. Efficient temperature regulation is essential, relying on the reliable performance and low energy consumption of circulation pumps. SPX FLOW’s Johnson Pump series offers exceptional reliability and efficiency, ideal for both heating and cooling systems.
The system operates on a closed-loop circuit, ensuring efficient and controlled heat delivery. The core process is as follows:
It circulates hot water through the greenhouse heating system to maintain consistent temperatures, ensuring ideal growing conditions for plants.
SPX FLOW offers four main types: CombiLine (CL), CombiLineBloc (CLB), CombiBlocHorti (CBH), and CombiBloc (CB), available as in-line or close-coupled monobloc designs.
The pumps handle up to 140°C and work at pressures up to 10 bar, depending on the model and configuration.
Pump casings and impellers are made from cast iron (EN-GJL-250/200), while shafts and sleeves use stainless steel and bronze alloys for durability.
The pumps are produced by SPX FLOW (Netherlands), with Changzhou Top Greenhouse Co., Ltd. as the exclusive distributor in China.
