FAQ

Akatherm has many specialist drainage systems: for rainwater, soil & waste, high-rise soil & waste, etc. Please use our easy to use decision tree to find out what system you need.

Akatherm BV is approved in very much countries. Please click here for a complete overview of which countries we apply to the standard. You can download the regional approvals as a PDF document.

Akatherm siphonic roof drainage systems offer:

- Save space for the function and mechanical services of the building
- Total freedom & flexibility of roof drainage design
- Economical installation with a light, plastic (PE) and welded pipe system
- Full peace of mind from a sophisticated risk management system

Please read more about all the benefits of the Akasison siphonic roof drainage system here.

Cost-effective siphonic roof drainage systems are engineered as a function within the layout of the building, type of roof, rainwater intensities, etc. Our Akacad design and calculation service enables you to create a well functioning drainage system within the constraints of these parameters.

Our Technical Support department is specialized to fully assist you. Our Akacad design software will help in this process. The software enables us to optimise technical analysis accurately and produce a hydraulic calculation, parts list and isometric drawing of the pipe work.

To accurately calculate the drainage system we need specific details about the building and rainwater intensities of your project. Please download this document, fill out all details and return to us by e-mail or fax.

At the heart of the siphonic roof drainage system, the roof outlet responds to negative pressure conditions in the system by streamlining the fluid flow, whilst preventing the entry of air. For every level of rain intensity, type of roof construction and roof membrane, you can choose a dedicated Akasison roof outlet.

Our comprehensive roof outlet selector guides you to the precise outlet you need.

All Akatherm drainage products are available in our online product database. Completed with measurements, packaging quantities and links to related products, installation instructions and further general information.

Click here to directly go to the main product database page or use our search function on top of this page.

If the information you require is not available please contact our product management team, you find the contact details here.

All Akatherm drainage products are available in our online product database. Simply look up your product and where applicable (and available) we have links to installation documents and video's.

Click here to go directly to the main product database page or use our search function on top of this page.

You can also click here to directly go to an overview of all our videos or you can directly visit our download area and look for the specific document. The download area is conveniently sorted so you find the information you're after quickly.

Please visit our page about how to install the new Akasison fixing system in our decision tree. In this decision tree you can also find your way to the installation instructions of the system you want to install easily.

Akatherm has a large distribution network around the world. Please visit our local availability page which lists all companies per country.

If your country is not listed, please contact one of our team members at Akatherm BV.

Akatherm high-rise soil & waste drainage systems offer:

- More usable room in the building
- Extra space for other installations
- Higher flow capacity of the stack
- Less installation costs by using a low weight plastic (PE) pipe system
- Full peace of mind from a sophisticated risk management system

Please read more about all the benefits of the Akavent high rise soil& waste system here.

An Akatherm soil & waste system for high-rise doesn't have any height restrictions: the dimensions are only determined by the number and types of drain fixtures that are connected to it. The Akavent system is preferably always equipped with one Akavent aerator for each floor.

The basic Akavent system for high-rise consists of the following elements:
- Akavent branch on every floor
- A down pipe with standard Akatherm pipes and fittings
- A vent pipe through the roof of the same diameter as the down pipe
- A vent pipe on the first floor

A more detailed explanation of the calculation principles is available here.

For the exact system calculation please follow these instructions or check our Specification Manual.

Akafusion is simple, secure and fast jointing!

Electrofusion is a rapid and simple way of permanent jointing. Using the Akafusion couplers and equipment, pipes, fittings and prefabricated pipe sections can efficiently be assembled. An electrofusion joint is made by placing an electrofusion socket over the two weld ends and passing a specific amount of energy through the heating wire contained in the electrofusion socket. This process is very suitable for joints made on site or in tight areas.

Please read more here about Akafusion.

Polyethylene can not be glued.

Read more about the benefits of HDPE.

If the competitor product complies with EN 1519-1 standards, then the products are compatible with each other.
It is necessary to remember that our insurance only covers the Akatherm product, if damage occurs.

Akatherm provides a 15-year warranty for all the products manufactured when installed according to our guidelines.

Read more about Standards & inspections and warranties.

By using 2 electrofusion couplers. Use them as sliding pieces, removing the section of damaged pipe.

According to the EN 1519-1 standards, HDPE used in soil & waste systems must not be used under pressure, however the HDPE wall thickness, up to diameter 160 has the same wall thickness as the PN4 pressure range, whereas the remaining pipes correspond to the PN3, 2 range.
This also refers to welded pipe without joints using electrofusion couplers, expansion sockets, plugin- and snap socket and all further fittings that incorporate ring seals.

The EN 1519-1 standard only refers to HDPE pipes and fittings for soil & waste systems inside buildings, however the raw material is the same material used to manufacture pressurised HDPE to transport water.

This is not possible. Current regulations do not foresee this.

Please use our chemical resistance list, according to the correct name of the chemical agent.

Read more about the benefits of HDPE.

HDPE is a translucent white colour in its initial state. A small quantity of carbon black is then added to protect the product from ultraviolet rays. The EN 1519-1 standards at the heading: "Colour", establish that it shall be "preferably coloured black".

The melting temperature remains 210°C for both. Fittings are manufactured using a moulding technique (the material is pressed inside the mould), whereas the pipe is extruded (namely, the material is drawn), therefore the pipe reaches the melting temperature a few seconds before the fitting.

EN 1519-1 standards indicate 95°C, whereas the softening point, namely the temperature which causes the piece to deform corresponds to 125°C. Therefore, even temperature peaks exceeding 95°C do not create problems.

Yes. For buildings with large or complex roofs, our Akasison siphonic roof drainage system is extremely suitable for this.

Read more about Akasison siphonic roof drainage systems.

This is not necessary.

This is possible. Akatherm has several pull tight and non-pull tight transition products available. It's important to know the outer pipe diameters and how the pipes are to be connected.

Read more about products for transition to other material.

Since its foundation in the early 60's under the name Kumefa (Kunststof en Metaal Fabriek), Akatherm has always been a pioneer in PE/PP pipe systems that transformed the business model from prefabrication and installation through trading and subcontracted production to finally own manufacturing and marketing. In 1989 Aljo van Dijk (one of the sons of the founder of Dyka plastic pipe systems) established the present injection moulding plant.

This is our address:

Akatherm BV
Visitor & warehouse address:
Industrieterrein 11
5981 NK Panningen
The Netherlands

Postal address:
P.O. Box 7149
5980 AC Panningen
The Netherlands

Tel:      +31 (0)77 30 88 650
Fax:     +31 (0)77 30 75 232
E-mail:  info@akatherm.nl

For more contact information please click here.

In drainage, as in every area of construction, you have to go that extra mile for every project to remain competitive, and be confident that the engineering you propose or the systems you install will ultimately deliver. This is true whether you are creating a skyscraper or a storage facility.

Increasingly, drainage is called upon to go beyond basic waste water disposal to deal with rainwater, industrial chemicals and any substances requiring special treatment or containment.

This is specialist drainage.

Please read more here about specialist drainage.