PE pipe and PP compression fittings - open questions quickly explained
Application range and resistance of PP polypropylene compression fittings and PE pipe?
PP compression fittings are only suitable for PE pipe made of PE-LD, PE-HD, PE40, PE80 and PE100. All common PE pipes are covered. In our online shop PVC-Welt.de you will find the highest quality PE pipes:: PE-Rohr PE100 - SDR11 - PN16 bar
PP polypropylene and PE polyethylene are plastics that are inherently absolutely non-toxic, odourless and tasteless, making them suitable for transporting drinking water, wine, drinks and other liquids.
PE pipe and PP compression fittings can be installed above and below ground in a sand bed. For underground installation, the frost-free limit must be observed or the installation must be kept free of water during the frost period.
PE pipe and PP compression fittings are designed for cold water applications, even if the material may have a higher load limit, the items cannot be used for hot water heating (e.g. house construction).
PE pipe and PP compression fittings are NOT suitable for gas installations.
What thread do PP polypropylene compression fittings with thread have?
The common thread type in the plumbing sector is the BSP thread (Whitworth pipe thread). Therefore, in theory, all PP compression fittings with threads are compatible with threaded fittings made of other materials such as brass, stainless steel, or PVC-U.
Threads of this type are not self-sealing and require a suitable thread sealing material, such as Teflon tape. The internal thread is parallel and is identified with the abbreviation "Rp". The external thread is tapered and is identified with the abbreviation "R".
For clarification ...: the confusion with inch sizes – or why 1" is not exactly 25.4 mm
Teflon tape, sealing cord, hemp, and sealing paste: Thread sealing materials
Do not use swelling sealing materials: sealing and connecting plastic threads
Can PP compression fittings for PE pipe be used multiple times?
YES. The compression fitting can be loosened and the pipes removed at any time.
Can PE pipe and PP compression fittings be used for compressed air lines?
NO, PP compression fittings are designed exclusively for the transport of liquids in conjunction with PE pipe.
Are PE pipe and PP compression fittings suitable for ozone, chlorine and salt water?
PE pipes and PP compression fittings can be used in conjunction with ozone, chlorine and salt water without any problems. The limitation lies elsewhere: seals in unions, additional units, etc. Here it is essential to ensure that the seal is made of NBR, EPDM or higher quality. Maintain seals regularly, as incrustations can form on the seals due to adhering salts.
HTC compression fittings for PE pipe - our low-cost alternative without compromising on quality: PN 16 bar
PE pipes and PP compression fittings from HTC are ideal for high-quality, price-conscious installations for service water, irrigation and can also be used without restriction for the industrial sector as well as for drinking water supply in the private sector (without certification).
A wide range of connection options enables you to realise your project.
Internal thread generally with reinforcement ring - except for deviating image representation and note.For the highest demands: Unidelta PP clamp connectors, approval: DVGW, KIWA, WRAS
PE pipes and PP compression fittings from HTC are ideal for price-orientated installations for service water, irrigation and can also be used with restrictions for the industrial sector and drinking water supply in the private sector (without certification).
PE fittings made of polypropylene and PE pipes are an optimal pipe system for use in cold water technology and have become established above all in irrigation technology and drinking water supply. For use in drinking water supply, a high quality standard and components that have been tested for drinking water are essential. PE pipe clamp connectors made of polypropylene from UNIDELTA are tested and have DVGW, KIWA and WRAS approval. In combination with our DVGW-certified PE pipe of the highest quality in PE-100 quality, your project will succeed at the highest level.
