TPi October 2008

f i t t ings feature on . . .

Awadock deflection S S

after ten hours and is completed after about 48 to 72 hours.

This time delay prevents too fast a swelling on the building site. The material is also form-stable in the swollen state, and holds the water even under high pressure. Q-TE-C seals at a low swelling volume directly at the leak. The sealing effect of the previous version of the Awadock connection system has been fully retained. This means that a large bore hole tolerance of a total of 3mm (200 -1/+2mm) is allowed. Despite this ability to compensate such great tolerances, flaws such as cavities in the bore hole or a skew bore cannot always be ruled out. Therefore an additional safety feature has been installed in the connection system with the Q-TE-C seal, providing additional sealing in an emergency. The Awadock connection system from Rehau is an easy-to-install, tight solution for the later lateral connection of sewer pipes made of polymer and traditional materials to concrete, steel-reinforced concrete and stoneware pipes. If the conical Awadock screw-in crown is inserted into the connection seal, the entire surface of the seal is pressed against the bore hole. Awadock DN 160 received the predicate ‘very good’ (2002) for its proven tightness even under extreme stress such as from shearing forces during settling, in a product study carried out by the independent IKT Test Institute, Gelsenkirchen. The Awadock connection system for connecting PP or PVC pipes DN 160 to concrete, steel-reinforced

Swagelok’s new variable area flowmeters S S are available in a variety of models and sizes

The Q-TE-C seal swells completely after 48 to 72 hours S S

makes installation easier, especially in confined pipe trenches.

concrete and stoneware pipes has had a new version added. A ball joint integrated into the screw-in crown enables the connected branch pipe to be angled continuously, horizontally or vertically, by ±7.5°. This mobility

Rehau AG + Co – Germany info@rehau.com www.rehau.com

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October 2008 Tube Products International