System isolator CleverLoop
The revolution without breaking through the ceiling
If the sewer is higher than the drainage fixture, the wastewater must be pumped to the sewer via a backwater loop using a lifting station. Until now, expensive, complex and space-consuming ceiling penetrations were often unavoidable – until now! The CleverLoop system isolator is a revolutionary product for new builds and renovations that requires no additional construction work: affordable, clean and quick.
And this is how it works: thanks to its completely innovative design, the CleverLoop no longer requires water to be lifted above the backwater level. Nevertheless, when closed, the internal mechanism provides reliable protection against backwater. CleverLoop is available with KESSEL pressure connections in nominal sizes DN 50, DN 80 and DN 100 with a click system.
If a lifting station is retrofitted and the basement ceiling is below the backwater level, the CleverLoop system separator can prevent the need for costly ceiling penetration work.
In the case of historic or listed buildings, cutting through the ceiling is usually neither desirable nor permitted. This is where CleverLoop and CleverVent come in!
Total commitment in every situation
Applications
A lifting station is to be installed in the basement, but as the basement ceiling is below the backwater level, a hole would need to be drilled through the ceiling for the pressure pipe. Thanks to the CleverLoop system separator, there is now a solution that avoids drilling through the ceiling!
Unbelievably cheap
If local conditions require the installation of a backwater loop, the costs of building drainage often skyrocket in line with the size of the property: however, in a detached house, using CleverLoop can save around 50% of the costs compared to a conventional installation.
The benefit is even more pronounced in larger properties: in a multi-storey commercial or multi-family building, where a ventilation pipe is also required, costs can be reduced by up to 70% by using the CleverLoop system isolator in combination with the CleverVent ventilation valve.
Revolutionarily efficient
Fewer pipes, less installation material, no fire protection collars: The CleverLoop system separator helps to save on materials during installation. This means that material usage can be reduced compared with conventional solutions.
An added bonus: the CleverLoop itself is made from 66 per cent recycled material.
Revolutionarily space-saving
Wasting an unnecessary amount of space on a backwater loop is a real waste, and not just in areas where property prices are high. CleverLoop is the space-saving solution that completely eliminates the need for a breakthrough into a second room above the lifting station. A welcome bonus: thanks to optimal sound insulation, there is no nuisance from disruptive noise either.
Useful information about CleverLoop and CleverVent
EN 12056-4 does not permit the pressure pipe to be connected to a downpipe. Both the CleverLoop and the CleverVent have a horizontal outlet. This therefore always discharges into a collecting pipe. If the collecting pipe is followed by a drop section, the connection is permitted and regulated by DIN 1986-100.
If only one item is connected, the restrictions for a single connection apply. Where additional items are connected, the rules for collective connections in accordance with DIN 1986-100 apply. The minimum gradient for unvented single-connection pipes is therefore 1 cm per 1 m. An unvented single-connection pipe must not be longer than 4 m. There must be no more than three 90° bends (excluding connection elbows) within a single flow path. The difference in height between a connection to a drainage fixture and the pipe base in the branch pipe leading to the downpipe must not exceed 1 m. If any of these conditions cannot be met, the individual connection pipe must be vented. It follows that, for most kitchens, venting of the kitchen connections is necessary. This is also required by DIN 4040-100 in the section on ventilation.
In this case, the kitchen is connected via the main vent shown in the diagram – from the lifting station’s collection tank to the CleverVent. If the inlet pipe of the grease separator is longer than 10 m, the additional ventilation pipe can be connected to the CleverVent and routed into the sewer, provided that the kitchen and lifting stations are vented above the roof.
The CleverLoop system isolator and the CleverVent ventilation valve ensure that the requirements for backflow protection and ventilation specified in EN 12056, DIN 1986-100 or ÖNORM B 2501 are reliably met. Extensive type testing carried out by TÜV Rheinland has demonstrated the products’ practical suitability and safety. The structural approval from the Austrian Institute for Construction Technology (OIB) documents the suitability and applicability of both products. Furthermore, compliance with DIN SPEC 3615 confirms the quality and safety of the products.
Provided that the gravity pipe is correctly sized and the fill level does not exceed 70 per cent, there is no need to maintain a stilling section between the CleverVent and the CleverLoop. Otherwise, a stilling section of at least 1 metre is required.
Yes, that is possible. The spring is made of corrosion-resistant V4A. This means that the CleverLoop can also cope with chlorinated water, saline seawater and aggressive waste water.
The CleverLoop system isolator and the CleverVent ventilation valve are compliant with building regulations. The systems hold a valid OIB approval and also bear the Swiss Qplus Swiss Quality mark. They therefore meet the requirements for their intended area of application. Irrespective of this, the following applies: provided the system is professionally planned, installed in accordance with standards and our manufacturer’s specifications, and regularly maintained, KESSEL naturally provides product liability cover in the event of a demonstrable product failure.
We are happy to assist you with the relevant technical documentation, installation instructions and approval documents to ensure that planning is carried out in a legally compliant and traceable manner. You can contact our technical advisory service by email at technik@kessel.de or by telephone on +49 (0) 8456 27-461.
The CleverLoop may be fitted to lifting stations with a power output ranging from at least 1 to 2.5 kW. As the Minilift, with its 1,000 watts, lies exactly at the lower limit of this approved range, reducing the pipe size to DN 50 and installing the CleverLoop are both perfectly feasible.
The CleverLoop system isolator has a ball passage diameter of 48 mm.
When planning lifting stations, the geodetic pumping height is a key factor in determining the power required by the pump. The deeper the building is below ground level, the greater this height difference and the higher the pump’s delivery capacity must be in order to transport the wastewater upwards to the backwater level or to the sewer. When installing the System isolator, the geodetic pumping height to the CleverLoop is always taken into account. Our SmartSelect planning tool helps you select the right product.
CleverVent and CleverLoop have been developed for installation in buildings. However, where it makes economic sense, our Custom Solutions department can arrange for the system to be installed in an underground tank in a frost-free area.
A socket end plug is inserted into the socket and secured with a locking end cap, e.g. from Ostendorf polymer.
The activated carbon filter (art. no. 681258) should be replaced annually – or sooner if odours develop in the room.