There are 4 different products on this page, see
list and further details on the following tabs:
1,000 – 300,000L
1.2m, 1.8m, 2.6m, 3.5m, 4m Dia.
1,000 – 300,000L
1.2m, 1.8m, 2.6m, 3.5m, 4m Dia.
Chamber Diameters:
1.2m, 1.8m, 2.6m, 3.5m, 4m
1,000 – 300,000L
1.2m, 1.8m, 2.6m, 3.5m, 4m Dia.
Designed with reference to BS EN 13121. All tank shells carry the SPEL 25 Year Warranty and life expectancy in excess of 50 years.
Different tank shell specifications are available dependent upon tank invert levels, ground conditions and ground water levels.
SPEL Tankstor tanks offer a cost effective solution for stormwater attenuation especially in areas where cratebased systems are challenged due to high ground water and/or high lateral loads.
The comprehensive range from 1000 – 300,000 litres, across 5 different diameters, offers a great starting point.
Tanks can be interconnected to increase the total storage capacity by use of multipe pipe size options making for simple installation. This type of attenuation format is particularly useful where the attenuation must keep within the footprint of the building and/or include a rainwater harvesting system.
For full range of tank sizes, including diameter and length options, see Section 4. SPEL’s bespoke manufacturing capacity provides engineers and contractors with the flexibility to design attenuation systems to suit all applications, this not only includes the tank size but also multiple pipe size and location options as well as a range of access points.
The inclusion of pumps is also an option (see SPEL StormPump on page 35), these can act as the flow control device. More specialised pumps can also be installed to send the flow to the SPEL RainSave rainwater harvesting system.
Due to the complexity and demands of modern developments the requirements for pumping stormwater are increasing.
SPEL StormPump delivers the perfect combination of attenuation volume and pumping capabilities all in a single ‘off-site built’, packaged system.
The SPEL team are available to help outline the optimum combination of tanks, pumps and pipework to ensure the combined system delivers efficiency and at peak performance.
Key benefits of SPEL StormPump are the accurate control of discharge flow rates, the ability to reduce attenuation size, and eliminating issues around pipework falls and levels across the drainage network.
SPEL StormPump utilises the full range of tank sizes, including diameter and length options see Section 4 for the complete range. SPEL’s bespoke manufacturing capacity provides engineers and contractors with the flexibility to design and deliver this system to suit all applications, including the use of horizontal and vertical chambers.
Outline sizes listed below, please see Section 4 for full range:
200 Series
1.2m Diameter
1,000-10,000 litres capacity
300 Series
1.8m diameter
4,000-40,000 litres capacity
400 Series
2.6m diameter
13,650-90,400 litres capacity
500 Series
3.5m diameter
60,000-200,000 litres capacity
600 Series
4m diameter
100,000-300,000 litres capacity
The larger SPEL StormCheck chambers can also accommodate extra storage capacity where site constraints limit the size
of the attenuation tank. For example, a 500 Series chamber at 2.5m dept has a gross capacity of 22,000L.
Model | Series | Dia. mm | o/a Height (mm) | Inlet Size Range | Outlet Size Range | Access Shaft dia. (mm) |
VFC220 | 200 | 1,200 | 2,000 | 150 – 450 | 100 – 450 | 750 |
VFC225 | 200 | 1,200 | 2,500 | 150 – 450 | 100 – 450 | 750 |
VFC230 | 200 | 1,200 | 3,000 | 150 – 450 | 100 – 450 | 750 |
VFC240 | 200 | 1,200 | 4,000 | 150 – 450 | 100 – 450 | 750 |
VFC320 | 300 | 1,800 | 2,000 | 150 – 750 | 100 – 450 | 750/900 |
VFC330 | 300 | 1,800 | 3,000 | 150 – 750 | 100 – 450 | 750/900 |
VFC340 | 300 | 1,800 | 4,000 | 150 – 750 | To suit | 750/900 |
VFC350 | 300 | 1,800 | 5,000 | 150 – 750 | To suit | 750/900 |
VFC360 | 300 | 1,800 | 6,000 | 150 – 750 | To suit | 750/900 |
VFC450 | 400 | 2,600 | 5,000 | To suit | To suit | 750/900 |
VFC460 | 400 | 2,600 | 6,000 | To suit | To suit | 750/900 |
500 Series (3.5m Dia.) and 600 Series (4m Dia.) chambers are available on request.
Intermediate sizes in 500mm height increments may be available.
For some stormwater attenuation systems, a SPEL StormBrake tank can offer savings in reducing the required attenuation volume. This is done by ensuring the flow control device is working at maximum performance for the longest possible duration.
The tank is a two compartment unit comprising of an inlet chamber, where the incoming water level rises quickly to the required head for the flow control device to operate at its optimum performance, this happens early in the storm event, allowing a higher flow for longer when compared with a shallow attenuation tank. A high level weir allows excess stormwater to pass over into the attenuation storage capacity in the second compartment and interconnecting tanks (if fitted).
As the storm abates and the level falls in the inlet chamber, non-return valves in the base of the weir wall open to allow stormwater to pass back into the inlet chamber and out through the vortex flow control device.
Outline sizes listed below, please see Section 4 for full range:
200 Series
1.2m Diameter
1,000-10,000 litres capacity
300 Series
1.8m diameter
4,000-40,000 litres capacity
400 Series
2.6m diameter
13,650-90,400 litres capacity
500 Series
3.5m diameter
60,000-200,000 litres capacity
600 Series
4m diameter
100,000-300,000 litres capacity
Lancaster Road
Shrewsbury
Shropshire
SY1 3NQ, UK