Stage V pumps get moving
By Thomas Allen10 December 2020
As the pump rental market adapts to stricter emissions regulations, Thomas Allen discovers that manufacturers are offering not only new models but also their expertise through guidance and training.
Stricter emissions regulations are impacting the world of pumps, prompting pump manufacturers not only to introduce new compliant models but also to offer guidance and training to customers to help them deal with the complexities of the new equipment.
US-based pump manufacturer Xylem is due to make new Stage V compliant versions of its CD100S and NC100S Dri-Prime Godwin S Series dewatering pumps available in the UK and wider European market this autumn.
Originally launched as Tier 4 Final models in North America last year, the new Stage-V versions of the four-inch centrifugal pumps will be introduced with a Stage V Diesel Engine Guide to help customers make the transition to Stage V.
The CD100S and NC100S, which will be available through Xylem Rental Solutions, both feature a redesigned pump-end that was said to result in 20% greater pump uptime and 40% reduced service time.
It is features like this that help to justify the extra costs associated with Stage V, according to Simon Mathias, Regional Product Manager, Xylem; “While the added emissions components and electronic controls required to operate the fully compliant Stage V engines have cost implications, the benefits of the new Godwin S Series help to offset the additional investment in the Stage V technology.”
These benefits, he tells IRN, include improved serviceability, increased fuel economy, enhanced uptime, reduced emissions, and remote monitoring and control.
He adds, “While pumps equipped with Stage V engines do require some additional maintenance operations and procedures, we have solutions in place that can help our customers manage maintenance schedules. For example, Xylem Field Smart Technology (FST), which comes as standard on all our Godwin S-Series pumps, allows operators to remotely monitor and control their pump from anywhere in the world.”
This enables operators to optimise maintenance schedules and identify sub-optimal operating conditions.
Ideal rental solution
Mathias says, “This makes it an ideal solution for rental applications where pumps might be deployed to remote locations.”
He adds that Xylem FST will play an important role in the control and operation of Stage V engines since it can monitor engine load and soot build-up, allowing operators to manage regeneration cycles efficiently.
What about the challenges Xylem has faced in adapting its pumps to meet Stage V?
Mathias says the challenges include appropriately sizing a Stage V engine to a given pump and application, operating the pump and engine optimally to avoid downtime caused by regeneration cycles, and ensuring fuel and Diesel Exhaust Fluid quality.
“Xylem is working to minimise the power and footprint of diesel engine drivers as much as possible,” says Mathias. “Working closely with our engine suppliers, we are focused on choosing diesel engine solutions that optimise the power available, minimise the engine cost and maintenance required, and improve fuel economy.”
Xylem has also developed a training programme to educate its customers about Stage V.
Commenting on the effects of the Covid-19 pandemic, Anthony Milando, Senior Vice President, Chief Supply Chain Officer, Xylem, tells IRN, “The financial reality of the pandemic means that we are seeing customers shift from capex to opex, which plays to our broad rental portfolio.”
In response to the “new reality”, Milando says Xylem is investing to expand its engineered dewatering solutions to leverage the company’s expertise.
He adds, “Our teams have shifted to virtual selling to adjust to the realities of the current environment.”
The company is also investing in remote and digital capabilities, from transactions to remote asset monitoring, to reduce contact points.
Xylem’s manufacturing and service branches continue to operate and serve customers, though special procedures have been implemented to ensure social distancing and enhance cleanliness.
Atlas Copco has also launched new Stage V compliant pumps: the PAC H range for high-pressure applications.
Said to complete the manufacturer’s pumps offering, the PAC H centrifugal pumps are part of the company’s Head Series. They can handle liquids containing solids of up to 89mm in diameter.
The pumps’ closed impeller is equipped with deflector vanes that keep the mechanical seal clean and free of detritus. This helps the mechanical seal last three times longer, according to Atlas Copco, while eliminating the need to use flush water to keep the pump clean.
The semi-cartridge seal design on the PAC H pumps allows changeout without dismantling the pumps and makes the lip seal and impeller easily accessible, thereby reducing downtime and simplifying maintenance.
Other features designed to reduce downtime and prolong lifespan include the hinge kit, which is a swing door that provides easy access to the pumps’ internal workings.
Also, bolted wear rings make for precise and simple replacement compared to pressed alternatives, and link belts are used to enable changeovers without having to dismantle the wet end of the unit, which Atlas Copco says reduces the mean time to repair by up to 30%.
The PAC H pumps are available in sizes with up to 150m head, with a capacity of up to 1,200m3/h.
They have QR codes that can be scanned to get information about parts and spares.
Meanwhile, US-based pump manufacturer DAE Pumps has expanded its line of submersible sludge and slurry pumps with the launch of its new Galveston series.
Comprising three sizes – 4, 6 and 8 inches – the new series of centrifugal pumps is capable of transferring up to almost 8,000 litres per minute at 56kW.
These heavy-duty pumps are equipped with a combined strainer with a partially open stand and an agitator to enhance suction. They can pass sludge, sand, minerals and solids of just over 6cm in diameter.
The new pumps were said to be suitable for a range of applications, from mining and wastewater to dredging and process pumping.
Richard Russo, Business Development Manager at DAE Pumps, says, “Our customers requesting low-cost, heavy-duty submersible pumps that can process more material in less time now have options with the Galveston series.”
For slurry water
Japanese pump manufacturer Tsurumi’s new GPN 837 heavy sand pump has been designed to move heavy slurry water.
At 9,000 litres per minute, the output of the new model is almost double that of the company’s next most powerful pump, the GPN 622.
Designed to pump liquids containing large quantities of solid matter, such as sand, sludge and slurry, the GPN 837 can handle solids up to 30mm in diameter.
The agitator at the suction opening mixes mud and water so that it becomes more fluid. The water is then diverted in a spiral around the pump to counter the abrasive effect of the pumped medium.
The impeller and suction plate are made of chrome cast iron, and the housing of grey cast iron GG 20. To further enhance durability, critical elements such as the double inside mechanical seal are made of silicon carbide.
With a dry weight of 815kg and a height of about one meter, the GPN 837 is driven by a 37kW electric motor.
It can pump vertically up to 24m, and when submerged it is pressure-resistant to a depth of 30m.
The pump also has Tsurumi’s oil lifter, which uses centrifugal force to lubricate the pump shaft in any position.
The new GPN 837 is available from stock in Düsseldorf or Antwerp and is shipped to the customer within 24 hours. Tsurumi also offers rental of the model for temporary needs.
UK-based mobile pump manufacturer BBA Pumps has introduced the new 3-inch BA75 pump, which is available worldwide.
The BA75 has the capacity to move 100m3/h and can handle solids of up to 42mm in diameter.
Powered by a single-cylinder Hatz engine that complies with the strictest emissions regulations, the new model was said to be clean and economical. It is also relatively quiet due to the low engine rpm and insulated canopy.
BBA’s new pump is designed to be easily transported, with a weight of 875kg and a footprint of 1.5m2.
The model has also been built to be robust, using components that have stood the test of time in BBA’s previous models, such as the MP50 vacuum pump and heavy cast iron open impeller with double wear plate. For this reason, the manufacturer offers a 4-year warranty as standard.
Full of rental potential
Gorman-Rupp says rental is a growing business since it helps end users reduce expenditure on capital and enhances their flexibility.
Although it has been supplying to rental companies for decades, predominantly in the US and in Canada, the US-based manufacturer is now expanding its presence in Europe by partnering with rental companies.
It has a European subsidiary based in the Netherlands, called Gorman-Rupp Europe BV, which develops and builds a range of mobile pumps aimed at the rental market.
Making up the main portion of Gorman-Rupp’s rental portfolio is the engine-driven S-Line, which is available from 2- to 10-inch diameters with flow capacities of 45 to 750m3/hour. These include both wet and dry self-priming centrifugal pumps, and they are protected by sound-attenuated canopies.
The pumps supplied by the manufacturer are primarily engine-driven, so they can operate independently and in remote locations, though electric-driven units are also available.
Gorman-Rupp supplies not only the equipment and spare parts to rental companies but also training in application, service and maintenance at its training centre in Waardenburg, the Netherlands, or at the rental company’s own facility.
New solutions centre
Pumping specialist Selwood has opened a new multi-million-pound solutions centre in Crayford, London, as part of ongoing investment in its premises and fleet.
The centre, which is accessible from the M25 motorway, will bring more capacity, a bigger team and an expanded offering to customers across London and the South East of England.
It replaces and significantly expands upon Selwood’s previous branch at Charlton, which has now closed.
The new facility has large-capacity storage facilities, and modern offices and customer areas that are designed to comply with social distancing measures.
The expansion will allow Selwood’s London team to offer faster response times and store a larger stock of pumps, along with pipework, stoppers and accessories.
A larger yard allows for a larger vehicle fleet to be based on site, and charging points are installed for Selwood’s growing number of electric and hybrid vehicles.
The centre opens as Selwood continues to increase investment in its pump fleet, which now has 5,00 units available for rental across its UK-wide branch network.
John Lovell, Managing Director, Selwood Pump Rental Solutions, said of the new facility, “It is a major investment that enables us to build upon the outstanding service and product range we offer all our customers.
”It reinforces our ability to deliver on major projects such as HS2 and to serve our broad customer base, from independent contractors to major water companies.”