Pressing System TECHNICAL MANUAL www.maincor.de

Mainpress Pressing System All legal and technical information has been carefully compiled to the best of our knowledge. No liability can be accepted for any errors or omissions. This document including the contents is protected by copyright. Any use prohibited by copyright is not allowed without the permission of MAINCOR Rohrsysteme GmbH & Co. KG. All rights reserved. In particular reprinting, editing, storage and processing in electronic systems, translations and microfilms. Subject to printing errors and technical changes. All previous versions lose their validity. Please consider legal provisions,...

Table of contents MAINCOR 2.3 Resistance coefficients in accordance with DIN 1988-300 8 3.3 Pipe runs and fastening 12 3.4 Insulation of MAINPRESS pipe 14 3.8 Heating with MAINPRESS 21 3.9 Sanitary with MAINPRESS 23 5. Rinsing and pressure testing 27

1. General 1.1 Description of the system Area of application The MAINPRESS system sets standards in processing and application in the area of heating and sanitation. It is ideal for quick and secure assembly; it is easy to bend but nevertheless structurally stable. The different heating and sanitation systems for residential and office buildings must fulfil a range of different requirements. The areas of application for multi-storey heating systems, central heating systems in the form of low temperature heating systems (LT heating systems) and sanitation systems are covered by professional planning,...

The operating temperature of the MAINPRESS system must be between -10°C and 70°C. Exceeding the continuous operation temperature is only intended for short periods of time. It must be ensured that the continuous operation temperature is not exceeded during regular application. The MAINPRESS system may not be used in systems such as, for example, solar and district heating systems, with operating temperatures above 70°C. It must be ensured that the parameters referred to above are not exceeded in any operating situation. The changes in length due to temperature increase must be considered when...

MAINPRESS - Multilayer composite pipe (pe-rt / Aiu / pe-rt) What are the advantages of metal composite pipes? MAINCOR multi-layer composite pipes are aluminium composite pipes consisting of 5 layers which are longitudinally welded to overlap. Aluminium composite pipes are distinguished compared to all-plastic pipes by their increased resistance to temperature and pressure, as well as by their structural stability. Technical properties • drinking water installation • radiator connection • wall heating • underfloor cooling • underfloor heating • ceiling cooling working temperature max. temperature...

2.2 The fitting The MAINPRESS fitting is made of CW 617N (Pb < 2.2%; Ni < 0.1%) brass in accordance with the requirements of the DVGW worksheet W 534 as well as the Drinking Water Ordinance (UBA - list) and was developed specifically for the area of food, drinking water and heating. The fitting is coated with a tin layer using a galvanic method. The profile ring assembled on the profile of the fitting consists of the EPDM material (with DVGW approval) and is suitable for a thermal application range from -40°C to +150°C and is suitable for drinking water. A pressing sleeve made from stainless...

(* MAINCOR MAINPRESS - PPSU Fittings Productdetails PPSU Elbow 90°PPSU Tee PPSU Coupler unpressed leaking Advantages Material PPSU Code PU 'ppsUcorrosion not possible (polymer) • very robust high performance polymer • outstanding impact resistance • proven since years in sanitary applications • hygenically non hazardous (medical use) • lead free Inspection window explicit recognition of the correct pipe positioning Technical properties Fitting body made of PPSU steel sleeve for safe guidance of the press jaw Glas transition temperature 220°C Thermal expansion coefficient 5,6 10-5/K It is not...

2.3 Resistance coefficients in accordance with DIN 1988-300 The resistance coefficient for the respective fitting can be read from the following tables. The table is created in the style of DIN 1988-300 Annex A and shows the resistance coefficients of different fittings in different sizes: Resistance coefficient ξ Individual resistanceb Abbreviations in accordance with DVGW W 575 Graphical symbola, simplified depiction Pipe outer diameter da mm T-piece, branching, flow separation T-piece, passage, flow separation T-piece, counterflow, flow separation T-piece, branching, merging flow T-piece,...

3. Installation 3.1 Press connection Cut the MAINPRESS composite pipe to length at a right angle using the corresponding original tool by MAINCOR. Then deburr the pipe until a circumferential bevel is evident. The bevel is necessary in order to prevent damage to the profile rings. The bevel must be checked before insertion. The correct insertion depth can be checked using the incorporated viewing window on the fitting. Put pressing jaws on the sleeve between the stops. Ensure that the pressing jaw abuts properly onto the stop ring. Then trigger the pressing procedure with the pressing machine....

The pressing machines listed in the table can be used in connection with the MAINPRESS pressing jaws, U-contour for the MAINPRESS system: pressing jaws j pressing jaws System Pressing tool Comments 16 - 32 40-50 This compatibility list is not valid for the MAINPRESS pressing jaws in connection with the MAP1 /ACO 102 battery-operated tool. Jaws bigger than size 50 aren't included in the compatibility and require individual checking.

3.1.1 Pressing dimension 63 with pressing jaws MAINPRESS multilayer composite pipe 63, is being pressed with the new press jaws without the need of adapter jaws. Open the press jaws by pushing the axle strub between thump and index finger. For a correct position of the press jaws on the fitting, the outer jaws pair encloses the fitting fully. Subsequently, the pressing machine, with the third lower press jaws part, is brought into contact with the sleeve by pushing the fitting towards the machine. The fitting is then enclosed by all three parts of the press jaws. It is important to ensure that...