A revolution in the production of durable sewerage pipe systems. PERFECT PIPE⁺ combines the product benefits of robust concrete pipes and durable synthetic inliners. The ideal comination of a conduit and a structure.

PERFECT PIPE⁺ thus heralds a new era in sewerage, achieving the requirements in terms of static strength and resistance in the event of increased chemical attack.

The manufacture of a durable connection of inliners made of high-quality synthetic material (polyethylene) and pipes made of high-strength concrete in an economical production process fulfills the essential demand on pipes for effluent disposal.  

• Resistance to increased chemical attack
• Static load capacity even with traffic loads
• Easy handling on the building site
• Safe to install and operate
• Cost-effective use of resources

Product spectrum:

• PERFECT PIPE⁺ DN 200 - DN 1000 (12" - 42"): standard construction length up to 3,000 mm (10')
• PERFECT PIPE⁺ Large-diameter pipe: Product parameters are set on a project basis.
• PERFECT PIPE⁺ Jacking pipe: Product parameters are set on a project basis.  

PERFECT liner:

The PERFECT LINER is made of high-quality polyethylene (PE). This material is resistant to chemical attacks up to a ph-value of 1.0, abrasion-resistant and weldable.

Multiple anchoring points are used to connect the inliner tightly to the surrounding concrete pipe. The high anchor density locked to the pipe sections and the optimum anchor geometry developed for PERFECT PIPE⁺ facilitates a reliable connection right into the sleeve.

The withdrawal resistance of each anchor is more than 250 N (56lb), the entire inliner can safely withstand permanent groundwater pressure of at least 1.5 bar (22 psi). Even strong temperature fluctuations will not cause the inliner to separate from the surrounding concrete.

Inliners can be produced in varying material thicknesses (1.65 - 3 mm) for different regional, standard- or project specific requirements relating to the wall thickness of lining.

Production system:

The fabrication of PERFECT PIPE⁺ involves the following procedural steps: 

• Trimming the inliner track as per the internal pipe diameter.
• Welding the inliner track to the circumferential inner pipe lining.
• Shaping of the ends of the inliner to sleeves for the pipe connection required.
• Fixing the inliner on a stable steel core.
• Setting up the cast mould and placing of concrete.

The position of the PERFECT LINER in the pipes is determined on completion of the set-up process of the moulds. In the area of the pipe connections, an increased number of anchors on the inliner provide a reliable, permanent connection to the concrete pipe.

Concrete technology:

The ultimate contour of PERFECT PIPE⁺ is created by moulding the PERFECT LINER with pumped/fluid concrete. Different grades of concrete can be used.

The steel formwork is designed for the production of tubes in the foot profile. PERFECT PIPE⁺ jacking pipes are produced with a round external profile. The dimensional stability of the inliner in the production process is in any case guaranteed by the inner steel core.

Cast production permits an environmentally-sound production process for all components - inliner, moulds and cores. The process safety of SCC inliner cast production is far above any traditional pipe production method.

After the hardened products are removed from the moulds, the manufacturing process is completed. The moulds are cleaned and are ready for the next production cycle. The method is also suitable for multi-shift operation.

The anchors connect the PE inliner securely across the entire length of the pipe and the full breadth with the concrete enclosure of the PERFECT PIPE⁺.

Due to the ongoing innovations in concrete technology and the combination with the polyethylene inliner the pipe material well established for hundreds of years will remain succesfully. The concrete stands for dense and durable sewage systems also in the future.

Automation:

PERFECT PIPE⁺ allows the cost-effective production of highly resistant pipes in application-specific production systems.

The degree of automation of PERFECT PIPE⁺ production ranges from manually supported handling of the moulds and products through to fully-automatic circulation systems, in which the operator remains exclusively responsible for steering and controlling all the processes.

Staged automation with increasing production capacity or product variety, in particular in the manufacture of large-diameter pipes or jacking pipes, is possible.

 

Persuasive arguments for using PERFECT PIPE⁺:

CORROSION-RESISTANT: Uniform lining in pipe and sleeve, permanently resistant against chemical aggression in the attack spectrum PH 1.0 to PH 14.0.

STATICALLY LOADABLE: Ideal load bearing with the approved cross section, no reduction in compression strength caused by age.

EASY TO INSTALL AND STABLE:  Flat pipe profile makes benching unnecessary, pipe position does not change during filling, use of excavated material usually sufficient for filling, no additional excavation for the laying of bell pipes.

ROBUST: With a concentric notch at the bottom, a flat top which ease storing and transportation and with the fixed liner the PERFECT PIPE⁺ meets any requirements on building site. The load-bearing capacity of the pipe can, if necessary, be enhanced through the use of high-performance concrete.

ECONOMICAL MANUFACTURE: Ideal material combination with the use of concrete and polyethylene with no need for adhesives, resins or the like. Consumption of both materials is as low as needed to ensure the statical load and resistance against chemical aggression.

REINFORCEMENT: Compatible with current standards for reinforced concrete pipe.