Isolating Gaskets 4 pipes
4 pipes GmbH . Sigmundstr. 182 . D-90431 Nuremberg . Germany . Phone +49 (0)911.81006-0 . Fax +49 (0)911.81006-111 . info@4pipes.de 
Documents to download:
Combi-Seal-G / TW
Combi-Seal-G10/11
Combi-Seal-SC316/G10/TS
Combi-Seal-NP
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.  
Combi-Seal-G200
Combi-Seal-G/F20