AVK UK Limited has been commissioned to supply valves and hydrants on two schemes for end client Scottish Water.
The schemes, Gorbals (Corsehouse) Pumping Station for contractor ABV Alliance (Amey, Black & Veatch JV) and Caledonia Water Alliance, (CWA) Morrison Utility Services, AECOM) respectively has a combined value to AVK UK of approximately £1.5m
Gorbals (Corsehouse) consists of the construction of a new Pumping Station and tie-ins to three existing service reservoirs at Drumboy, South Moorehouse, Thornlibank and Amlaird Treatment Works and is part of the £120m Ayrshire Improvement Scheme. It began late 2015 with a project completion date of Summer 2017 and has a value to AVK UK Limited of approximately £1.2m.
Over 200 valves on the Gorbals (Corsehouse) scheme have been supplied and include:
• Gate Valves (including Gearbox, Electric Actuators and Ancillary Equipment)
• Recoil Check Valves
• Flow Control Valves
• Air Valves
• Ball Valves
• Hydrants
Sizes range from DN25 up to DN1000mm with pressure ranges from PN16 and PN25.
AVK UK has been working closely with the ABV engineers and the project manager for the scheme from January 2016 (six months) to support and recognise any potential value engineering solutions
As a result of this AVK UK provided calculations to change the design from originally specified conventional NRV’s to Recoil Check Valve (reducing a risk of a surge by up to 90%). This was achieved by utilising support from design engineers from AVK UK Limited’s sister company Glenfield Valves Limited.
Close collaboration between AVK UK Limited’s Project Manager for the scheme, Wilson McPhail, and the ABV Project Managers and designers has been key to ensuring that the valves and hydrants are ‘fit for purpose’ and on site at the right time.
He explained, ” We have been working with the ABV designers over the past several months to select optimum valves including: Flow Control Valves, Recoil Check Valves for pump protection/surge prevention and a number large actuated Gate Valves.
We have used our Glenfield office (Prestwick), to offer technical support to ABV from our design engineers who have supplied surge calculations, performance curves and other technical documentation including drawings to support our technical offering. This was key to giving ABV the peace of mind to allow them to progress onto the manufacturing and construction phase.
Our Kilmarnock assembly and distribution facility was also used to ensure that initial critical delivery dates on phase one were met by using their stock of DN900 Gate Valves and fitting actuators and gearboxes in just a few weeks which allowed ABV to start some early tie-in work and ensuring they met their initial delivery commitment.”
AVK UK also faced a logistical challenge with there being five different sites for this one scheme, it meant that AVK UK and the ABV team had to ensure all deliveries were suitable for each of the five different sites, this included consideration of vehicle restrictions, site access, offloading facilities and other specific delivery rules for each of the five sites.
AVK UK continue to work closely with ABV having daily contact and site meetings, this service will continue right through to the commissioning stage and until the project is handed over to Scottish Water.
The Amlaird Pipeline is 13-Mile strategic pipeline running from Newton Mearns to the Fenwick/Waterside area for Scottish Water. The pipeline is being laid by the Caledonia Water Alliance. AVK UK Limited has been commissioned to supply valves for the pipeline and has an approximate value of £320k.
The Construction of the first phase started in early 2016 the £120 million investment by Scottish Water in its drinking water network; this will benefit more than 200,000 people and businesses in much of Ayrshire and parts of East Renfrewshire. The expected completion is Summer 2017.
The route of the first phase section of water main is being constructed mainly through farmland and open moorland. It starts at Waulkmill Glen Reservoir in the north and goes south via Drumboy Hill, close to the M77 and A77 to Amlaird Water Treatment Works near Fenwick with branches to the South Moorhouse and Corsehouse water treatment works.
AVK UK Limited has supplied 69 the following valves on the Amlaird Pipeline and include:
• 9 x DN900 Metal Seated Gate Valves, PN16
• 5 x DN900 Metal Seated Gate Valves, PN25
• 5 x DN1000 Metal Seated Gate Valves, PN16
• 50+ Air Valves, Gate Valves and Hydrants
The pipeline had a tight delivery program, through working closely with CWA, AVK UK supplied and worked to a delivery schedule with numerous ‘milestone dates’ giving regular updates to both CWA and Scottish Water and successfully managing to deliver the valves early.
AVK UK supported and value engineered design alterations on all valves with the integral bypass arrangement being specially altered for this project to satisfy site-specific requirements. This was accepted after the submittal of GA Drawings to ensure it met with the designers’ expectations and approval. This demonstrated the flexibility and willingness of AVK UK and its designers to offer customer and site-specific solutions.
AVK UK worked closely with the CWA designers over a number of months to carefully select and locate the Air Valves across the 13-mile pipeline route using their unique Air Valve sizing software.
Once each location and size was agreed by both AVK and CWA, a final report was signed and submitted by AVK UK to CWA was also used by alliance designer AECOM as part of their final hydraulic analysis.
+44 (0)7515 576658
wimc@avkuk.co.uk
