Manufacturing of plastic pipes, manholes and tanks from PEHD and PP using the proprietary profile winding process
Hawle Kunststoff & Service GmbH
WiehlNew on Amplifa
About Hawle Kunststoff & Service
Hawle Kunststoff & Service GmbH, based in Wiehl, manufactures pipes, manhole structures, tanks and stormwater retention systems from the plastics PEHD (PE-HD) and PP. These are based on the profile winding process developed and patented in-house as early as 1956, which achieves higher ring stiffness than solid-wall pipes with reduced material usage. The pipe system is manufactured in accordance with DIN EN 13476 and covers nominal sizes from DN 300 to DN 3500; joints are created by extrusion welding (all nominal sizes), push-fit joints up to DN 1800 and heated-wire welding up to DN 700. The product range extends from drinking water and wastewater valve manholes, pump and well manholes, via drinking water, fire water and spring water reservoirs, to the stormwater retention system developed since 1970 for combined sewer networks as well as tanks and pipelines for industry and landfill technology. In addition, the company offers in-house prefabrication, welding technology for pipeline construction, technical consulting and installation on construction sites.
- Site
- Wiehl
- Processes
- Profile winding process for pipes made of PEHD and PP, Extrusion welding (all nominal sizes DN 300-3500), Heated-wire welded joint (up to DN 700, PEHD only), Push-fit joint (up to DN 1800), Installation of plastic pipes and systems as well as apparatus components made of PEHD and PP on, Manufacturing of plastic manholes (drinking water/wastewater valve manhole, pump manhole,, Manufacturing of tanks (drinking water reservoirs, fire water tanks, spring water reservoirs), Manufacturing of retention systems (retention sewer pipes, overflow, tangential, throttle,
- Materials
- PEHD (PE-HD), PP (polypropylene), Stainless steel (manhole cover, door, perforated plates), PE-HD (high-density polyethylene), Polypropylene, Stainless steel, Profile winding process, Extrusion welding
- Certificates
- DIN EN 13476, DVGW W 270, KTW guideline
- Founded
- 1956 (regi
- Industries
- Drinking water, Wastewater, Industry, Landfill
- 01
Profile winding process for pipe manufacturing (PEHD, PP)
- 02
In-house prefabrication of manholes, tanks and fittings
- 03
Welding and joining technology (extrusion, heated wire, push-fit joint)
- 04
Installation on construction sites / pipeline construction
Materials and Joining Techniques
PE-HD (high-density polyethylene)
Main material for profile-wound pipes, manholes and tanks; suitable for drinking water, chemically resistant and impact-resistant even below 0 °C.
Polypropylene
Material for pipes and retention systems with high chemical, abrasion and temperature resistance.
Stainless steel
Used for manhole covers, doors and perforated plates, e.g. for the spring collection manhole.
Profile winding process
Proprietary process patented in 1956 for pipes with high ring stiffness and reduced material usage.
Extrusion welding
Joining technique for all nominal sizes DN 300–3500.
Heated-wire welding
Welded joint up to DN 700, only for PEHD.
Push-fit joint
Joint up to DN 1800, which can also be installed by construction companies without the manufacturer's own installers.
Milling technology
In-house machining of plastic components.
Locations
Wiehl
DEHeadquarters and manufacturing
- Materials
- PEHD, PP
- Welding system for wound pipes
Products and Components
Inside the production
Industries
Processes & technical limits
| Processes | Tolerance | Max. part | Weight | Lot size | Materials |
|---|---|---|---|---|---|
| Profile winding process for pipes made of PEHD and PPPlastics | – | – | – | – | PEHD, PP |
| Extrusion welding (all nominal sizes DN 300-3500)Joining | – | – | – | – | PEHD, PP |
| Heated-wire welded joint (up to DN 700, PEHD only)Joining | – | – | – | – | PEHD |
| Push-fit joint (up to DN 1800)Joining | – | – | – | – | PEHD, PP |
| Installation of plastic pipes and systems as well as apparatus components made of PEHD and PP onAssembly | – | – | – | – | PEHD, PP |
| Manufacturing of plastic manholes (drinking water/wastewater valve manhole, pump manhole,Plastics | – | – | – | – | PEHD, PP |
| Manufacturing of tanks (drinking water reservoirs, fire water tanks, spring water reservoirs)Plastics | – | – | – | – | PEHD, PP |
| Manufacturing of retention systems (retention sewer pipes, overflow, tangential, throttle,Plastics | – | – | – | – | PEHD, PP |
| Pipeline construction (drinking water, wastewater, industry, landfill technology)Assembly | – | – | – | – | PEHD, PP |
| Manufacturing of bends 5°-90° and fittings from profile-wound pipePlastics | – | – | – | – | PEHD, PP |
| Welding technology in pipeline construction / welding system for wound pipesJoining | – | – | – | – | PEHD, PP |
| Milling technologyMachining | – | – | – | – | – |
Additional services
Reference customers
Quality
The pipes are manufactured in accordance with DIN EN 13476; for PEHD and PP, test certificates are available in accordance with DVGW Working Sheet W 270 and according to the KTW guideline of the German Federal Environment Agency. Drinking water structures meet the requirements of DVGW Working Sheet W 270 and the KTW recommendations.
| Evidence | Wiehl |
|---|---|
| DIN EN 13476 | |
| DVGW W 270 | |
| KTW guideline |
History
- 1956
Development and patenting of the profile winding process for pipes made of PEHD and PP
- 1970
Development of the plastic retention system