Type BVHD / BLHD - High performance - Double excentric - PN10 / 16 / 25	Type BVTT / BLTT - PTFE lined - Wafer-type or lug-type - Disc: Stainless steel or PTFE       coated	Type BVPD / BLPD - Slightly abbrassive media - Carboxid liner
Type BVKI / BLKI - Rubber liner - Exchangeable or vulcanized - Wafer-type, lug-type or        double-flanged - Disc: Ductile iron, carbon steel,        stainless steel, alu-bronze or        hastelloy	Type BVFA - Hot air and exhaust fumes - Metal to metal seated - From DN50	All typs can be equipped with  actuator, limit switches and solenoid valve

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