More than a century ago greenhouse horticulture activities started in the “Westland” area in the Netherlands. Over the years in this region a specialised infrastructure arose, uniting growers, trade channels and suppliers of greenhouse components. 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. Due to...

The Horticulture circulation pumps comprise the following range:

pump cover sealed with O-ring all pumps are equipped with a mechanical seal with bellows, according to EN 12756 (DIN 24960) stainless steel extended motor specially designed center- ing bosses for optimal motor alignment, with minimal heat transfer to the electric motor all electric motors are suited for Euro voltage stainless steel stub shaft The hydraulic parts of all pump types have been optimized by using CFD (Computational Fluid Dynamics) during the design stage of the pump. Extensive testing at the SPX test laboratories proved that the pumps amply meet their design specifications.

cast-on bosses with threaded holes, for wall or floor mounting of the pump CL - CLB a specially designed suction bend ensures an optimal NPSH pump entry is provided with anti-rotation vanes to prevent vortex in the impeller inlet All pumps are designed according to a strong modular concept, resulting in a high degree of interchangeability of mutually equal components between the pump families (see diagram at the left).

Pump configurations The following overview shows the possible pump configurations of the Horticulture pump range. COM B I LI N E

Pump mounting positions It is possible to mount the pump in several different positions between the lines of the system, in horizontal as well as in vertical position. However, not all the possible positions are allowed. This overview shows the allowed mounting positions of the pumps of the Horticulture range. Horizontal, with motor in horizontal position, connecting box on top. Vertical, with motor in horizontal position, connecting box on top. Horizontal, with motor in vertical position. If necessary, the pump can be mounted on a base plate and foundation to avoid pump loads to the pipe work...

Performance curves These performance curves are based on standard electric motor speeds and refer to water with a temperature of 20 °C. Hydraulic flow field CL and CLB at 50Hz 4 poles 30 Hydraulic flow field CL and CLB at 60Hz 4 poles Hydraulic flow field CL and CLB at 50Hz 6 poles [m] Hydraulic flow field CL and CLB at 60Hz 6 poles

Performance curves These performance curves are based on standard electric motor speeds and refer to water with a temperature of 20 °C. Hydraulic flow field CBH and CB at 50Hz 4 poles Hydraulic flow field CBH and CB at 60Hz 4 poles Hydraulic flow field CBH and CB at 50Hz 6 poles Hydraulic flow field CBH and CB at 60Hz 6 poles

Circulation systems H E AT E D WAT E R C I R C U L AT I O N Water circulation systems in the greenhouse are heated by a boiler or by heated water buffered in a large tank. The burner of the boiler also supplies the CO2 gas for growth; in those situations the heat is stored in the buffer tank. The heat might also be delivered by external companies, for example a joint facility for total energy supply in greenhouse areas. The heat is delivered to the circulation system by means of a heat exchanger. A manifold unit and a related control management system distributes the heat to all sections in the...

Saving energy Warmth is a valuable commodity and you must apply it rationally! I N S U L AT E D P U M P S A N D VA LV E S Not many investment costs are recovered as quickly as when insulating the fittings in your central heating system, boiler house or technical spaces. Oddly enough, while most pipes are sufficiently insulated, most pumps, mixing valves, valves and flanges are not. SPX FLOW can supply insulation packages for these products. Our insulation packages can be fitted to the distribution groups to avoid excessive heat radiation. Every year countless cubic meters of natural gas are wasted...

In a unique cooperation with Danfoss, SPX FLOW can supply pumps with frequency controlled motor drive. In this way world wide service expertise and “online” support are guaranteed. VLT® HVAC DRIVE FC 102 It offers a vast number of pump-specific features developed in cooperation with OEMs, contractors and manufactures all over the world. The VLT® HVAC Drive FC 102, built on Danfoss' new modular plug-and-play platform and dedicated to HVAC applications, makes HVAC operation easy. Operators, equipment and control systems all communicate effortlessly with the VLT® HVAC Drive FC 102. 27 Display languages...

Hydraulic Investigator To find the best fitting pump for your pump application in the greenhouse the CombiLine, CombiLineBloc, CombiBlocHorti or CombiBloc ranges are available in a large number of sizes, which covers an ample hydraulic field.   We recommend using our Pump Selection software “Hydraulic Investigator” developed by SPX Flow Technology Assen, to select the best available pump for your particular application. • Guided pump selection based upon specific needs for any pump application. • Capacity, delivery head, mains frequency 50 or 60Hz and other criteria can be used to select the...

Circulation Pumps De Hondert Margen 23 2678 AC, De Lier The Netherlands TEL +31 (0)174 518 410 FAX +31 (0)174 518 444 EMAIL: [email protected] www.spxflow.com/en/johnson-pump/segments/horticulture/ Dr. A.F. Philipsweg 51, 9403 AD Assen P.O. Box 9, 9400 AA Assen, THE NETHERLANDS P: +31 (0)592 37 67 67 F: +31 (0)592 37 67 60 E: [email protected] SPX reserves the right to incorporate our latest design and material changes without notice or obligation. Design features, materials of construction and dimensional data, as described in this bulletin, are provided...