BSEE PUMPS
uA packaged pump station with attenuation pipes.
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uA Polyethylene packaged pump station.
PACKAGED PUMP SYSTEMS Why construction material is key for packaged pumps
A
Concrete rings have traditionally been used to enclose pump systems but as construction methods have advanced, they’ve become a less efficient solution. Lloyd Preston, Divisional Manager at Dutypoint, explains the benefits a move towards other materials can bring.
s a modern alternative to concrete rings, packaged pump systems are used in situations that require
the removal of surface water, wastewater or sewage where gravity is not enough to carry out the job on its own. Typically, these integrated systems are assembled in tanks made from polyethylene or GRP material.
Polyethylene is becoming an increasingly favoured material as it is more flexible and site-friendly. The use of GRP is also increasing in popularity, especially where there is a requirement for larger tank sizes. GRP is more rigid, and is ideal for use in situations where there is a high water table, ensuring that the tank will withstand the additional pressure this brings. The use of concrete for pump stations has been a standard of the construction and utilities sector for many years. However, we are keen to educate those who might not be aware of the options available. Safety is perhaps one of the most important benefits and anything that can help reduce hazards on site shouldn’t be overlooked. The use of concrete rings requires on site installation by an engineer, which means working in a confined space. It goes without saying that this comes with an associated level of risk. On site safety is paramount on any project and a packaged pump system will remove these potential hazards.
Quality control
The construction of a packaged pump system off-site helps to mitigate the chance of any accidents happening as well as any installation delays. Our pump stations are delivered assembled, complete with internal pipework ready for installation into the ground. Quality control is much more feasible in a production facility than from within a concrete chamber on site.
When an engineer is working below the ground, it’s easier to adopt an ‘out of sight, out of mind’ approach, but when a packaged pump system is being built in an ISO9001 accredited
22 BUILDING SERVICES & ENVIRONMENTAL ENGINEER JULY 2017
production facility, there are strict standards that need to be met which helps lessen the risk of anything going wrong once it’s in situ. Further to this, Vortech Packaged Pump Stations can reduce the overall purchase cost and installation time on-site, allowing a project to progress at a fast pace. Dutypoint has been involved in a number of infrastructure, commercial and construction projects where these materials have enabled us to offer a bespoke approach which has helped solve particular problems for our customers.
One such infrastructure project was the major redevelopment of the Elmbridge Court roundabout in Gloucester. This required the addition of extra lanes to improve traffic capacity on all approaches along with a new “hamburger” lane to assist the flow of traffic, new traffic signals and a new surface water drainage system.
Challenges
As with all highway projects, temporary traffic management brings extra challenges for drivers and workers, not to mention the extra health and safety risks and the unpredictable weather conditions. Programmes are always very tight on road schemes; designs have to be thought through, reviewed from a lot of different angles and most importantly road users and the project work force need to get home safely at the end of the day.
With the original programme suggesting two concrete wet wells and confined space installations, the contractor was happy to work with Dutypoint to design a complete packaged pump system. This greatly reduced installation time, gave the contractors a much more flexible programme and reduced potential health and safety risks on site. As with any advances in technology, you would expect improved quality and that’s exactly the case with using Polyethylene and GRP versus concrete. By their very nature, any ring structure will have a weaker spot at the point where they are joined. While each concrete ring is sealed as they are built up, these can fail. The likelihood of this happening is especially high in areas where the chambers are in close
THE BENEFITS OF MODERN
proximity to trees and are then vulnerable to tree root penetration. If the seal is broken, ground water can seep into the pump chamber causing the pumps to operate more than they are designed for, increasing the risk of overheating, burn out and failure. Such issues will require more frequent maintenance and will reduce the lifetime of the pumps. In addition, there could be an increased risk of contamination to both to the tank and to the surrounding ground.
Aftercare
Aftercare is a key part of the process of installing a packaged pump system. We pride ourselves on this and our customers really see the value in it, providing them with the reassurance and technical advice that might be needed from start to finish. It’s particularly relevant for the more complex projects we are involved in and in these instances, it’s important to be able to answer any questions. We have a technical advice section on our website called Knowledgepoint which provides detailed information about the different types of pump we supply, as well as more technical areas such as how to calculate friction head loss. Our aftercare team is also on hand to answer any specific project related questions, ensuring any issues are resolved quickly and efficiently.
https://www.dutypoint.com/ VISIT OUR WEBSITE:
www.bsee.co.uk
uStainless steel pipework inside a packaged pump station.
‘
On site safety is
paramount on any project and a packaged pump system will remove these potential hazards. The construction of a packaged pump system off‐site helps to mitigate the chance of any accidents happening as well as any installation delays.
’
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