Isolating Gaskets 4 pipes
4 pipes GmbH . Sigmundstr. 182 . D-90431 Nürnberg . Phone +49 (0)911.81006-0 . Fax +49 (0)911.81006-111 . 
Documents to download:
Combi-Seal-G / TW
Product Datasheet
Are excellent isolating-sealing gaskets for metal flange joints. Flange joints with isolating-sealing gaskets and screw isolations are electrical protected as well against contact corrosion. Approved qualities according to DVGW and KTW / W270 for the gas and water pipeline industry are available.