Flange Gaskets High reliabiltiy critical service flange gasket products.     Firelok   Flowlok   HCS   MTS     PGE   SSG   VCFS   VCS         Insulation and Flow Control High performance Insulating Kits and Orifice Plates     Insulating Kits     Orifice Plates         Over Voltage Protection Pikotek over voltage protection devices can protect your pipeline against lightening strikes, AC ground faults and induced AC from electrical transmission lines.     PPD