HP flange

The expert solution for sophisticated connections

HP flanges from Reinert-Ritz are high perfor­mance solutions for the full pressure resis­tance of a loose flange connection with a welding stub. A special PE100 welding stub and a loose flange-type backing flange adjusted to the dimension form a precisely coordi­nated unit and are perma­nently connected to each other.
Here the stub and the flange interlock in a positive fit at their connecting surfaces in a similar way to a tongue and groove. The axial forces of the pipeline are trans­ferred to the flange over the entire stub surface. This combi­nation protects against defor­mation of the PE stub and, depending on the dimen­sioning, makes pressure loads of up to 25 bar possible.
The backing flanges are available in a steel version with a plastic coating or in a corrosion-free and fibre-reinforced plastic version.



Data sheet

Tender text

PE100 HP flange (high performance flange)

General preliminary remark

The fittings to be offered must be delivered as a set consisting of a welding stub and a loose flange-type backing flange adapted to the dimension. The welding stubs must be manufactured from material in compliance with the PE100+ Association and according to DIN EN 12201 and DIN EN 1555 with respect to dimensions, tolerances and quality requirements. The backing flanges must be manufactured from corrosion-free, fibre-reinforced plastic or from steel with a plastic coating in accordance with DIN EN 10310. Proof must be provided that they were manufactured on the basis of a quality assurance system in accordance with DIN EN ISO 9001. For all fittings a certificate in accordance with DIN EN 10204 must be submitted by the manufacturer. The body of the PE fitting must be manufactured in the injection moulding process or alternatively, in the case of larger dimensions, from a piece of homogeneous semi-finished material. Semi-finished materials manufactured from wound rods or the subsequent application of other forms of reinforcing are not permitted.

The stub and flange must interlock in a positive fit at their connecting surfaces and the flange must provide additional support to the stub from outside so as to counteract deformation. As a result, the flange connection is fully pressure-resistant according to the pipe dimensioning. The backing flange is permanently connected to the welding stub.
Use of a profile gasket is recommended.

The spigots must have a long shape to enable both butt welding (HS) and electrofusion welding (HM).

The hole pattern corresponds to DIN EN 1092-1 PN 10 or PN 16.

Optionally available versions: Design according to DIN EN 1092-1 PN 25, stainless steel backing flange



DIN EN 12201, DIN EN 1092-1, DVS 2207, DVS 2210, DIN EN 10204, DIN EN ISO 9001, DIN EN ISO 50001, DVGW W 400-2, DVGW GW 335



DVGW: DV-8606BT0423 und DV-8611BT0424
Acceptance test certificate 3.1 according to DIN EN ISO 10204 for the semi-finished material from the processed raw material with indication of MFR and OIT; only PE100 material in compliance with PE100+ Association
Manufacturer certified according to ISO 9001:2015 and ISO 50001:2011



Reinert-Ritz GmbH or equivalent

Performance specification:

HP flange consisting of a PE100 welding stub and a permanently fitted backing flange made either of corrosion-free, fibre-reinforced plastic or steel with a plastic coating according to DIN EN 10310, designed for full pressure resistance , drilled in accordance with DIN EN 1092-1, long welding end for electrofusion welding,


DN…   PN...


Proof of delivery:

Reinert-Ritz GmbH
Ernst-Heinkel-Straße 2
48531 Nordhorn
Tel.: +49 5921 8347-0



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