Griswold tackles water pumping issues

Griswold tackles water pumping issues

8 Product news WORLD PUMPS Griswold tackles water pumping issues June 2009 New design replaces pump combination Haldex Concentric has developed a ...

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Product news WORLD PUMPS

Griswold tackles water pumping issues

June 2009

New design replaces pump combination Haldex Concentric has developed a low-cost fuel pump and adaptor for the Volvo Penta, allowing it to use a standard unit without changing the engine configuration. The new unit replaces a fuel and steering pump combination originally designed for 9-11 litre automotive engines, but also used in gensets and marine applications where the steering pump was not required. The solution is a transmission module (or interface) between the engine and the fuel pump. Since the interface unit functions as the drive alignment between the engine and fuel pump, both the interface housing and internal drive shaft have to be machined to micron tolerances.

The E, F&G Series centrifugal water pumps have been launched by the Griswold Pump Company.

US centrifugal pump manufacturer Griswold Pump Company, part of the Dover Corporation’s Pump Solutions Group, has launched the E, F&G Series. The new E, F&G Series centrifugal pumps have enlarged pump suction and discharge nozzles, which cuts down on friction losses and results in fewer fittings. This makes the E, F&G Series suitable for use in commercial swimming pools, water parks, fountains, aquariums and many more water-pumping applications. Griswold’s F Series pumps are also certified by NSF to ANSI/NSF standard 50 for swimming pools-circulation system components. According to Griswold, other key components designed for the E, F&G Series include a bronze shaft sleeve, which is renewable and insulates the shaft from abrasion. In addition, there are renewable bronze wearing rings that are precision-made and pressed into the casing and/or adaptor as required and are easily replaced in the field. Mechanical shaft seals made from carbon, ceramic, Buna and stainless steel components drastically reduce www.worldpumps.com

maintenance and adjustment issues. Finally, there is a singlepiece enclosed impeller that is made of cast bronze and keyed to the shaft. It is precisionbalanced with the diameter cut for the specific condition point. Griswold says that another benefit of the E, F&G Series include its versatility, with capacities up to 3,000 gpm, heads to 310 ft (94.5 m), and a broad range of sizes and configuration options. E, F&G pumps are equipped with either close-coupled NEMA electric motors or they are framemounted with couplings to electric motors, engines, steam turbines or belt drives. The company adds that the E, F&G’s 360-degree mounting capabilities extend installation options, as do its close-coupled configurations that can be mounted vertically when space is at a premium. Easy maintenance is ensured by the pump’s back-pullout design, which permits removal of the entire pump assembly. All E, F&G models are flanged in accordance with ANSI B 16.1 for 125-psi pumping applications. www.griswoldpump.com

In order to achieve this Haldex Concentric has invested in an advanced, fully automated test and assembly system. The system checks components entering and exiting a process and, where a concern is detected, automatically picks up the components concerned and segregates them from the normal process. This relieves the unload operator of a

Haldex Concentric’s fuel pump for the Volvo Penta replaces a fuel and steering pump combination.

responsibility and ensures that components in the unload station have passed all necessary quality criteria prior to packing. The new pump module developed by Haldex Concentric has enabled Volvo to replace a partially inactive system without the need to make any engine modifications. Since the design is backwards compatible, it will also benefit end-users should a replacement be required for older power steering and fuel pump modules. www.concentric-pumps.co.uk

PX2 meets demanding hygienic applications Wilden has introduced the new 25 mm (1 inch) PX2 Hygienic Series™ (HS) stainless steel pump. The company says that the PX2 Hygienic Series pump was designed specifically to handle demanding sanitary and hygienic applications. This Hygienic Series pump has been certified to 3A standard 44-03 and EHEDG doc. 2 and doc. 8. The PX2 HS pumps can be configured to be clean-in-place (CIP) capable. According to Wilden, the new PX2 Hygienic Series pump comes equipped with the Pro-Flo X air distribution system (ADS). This includes the Efficiency Management System that allows the user to control flow rate easily, as well

The new 25 mm PX2 Hygienic Series stainless steel pump from Wilden.

as efficiency, using a dial. The Pro-Flo X ADS is claimed to provide reliable operation, high flow rates, with superior efficiency and anti-freezing characteristics. www.wildenpump.com