Home / Aztec / DOUBLE BLOCK AND BLEED VALVE, FLANGE X FLANGE (MODEL NO. DBB-FBNBF) DOUBLE BLOCK AND BLEED VALVE, FLANGE X FLANGE (MODEL NO. DBB-FBNBF) Category: Aztec Related products DOUBLE BLOCK VALVE, FLANGE X THREAD (MODEL NO. DB-FBNT) DOUBLE BLOCK VALVE, FLANGE x FLANGE (MODEL NO. DB-FBBF) DOUBLE BLOCK VALVE, FLANGE X FLANGE (MODEL NO. DB-FBNF) SINGLE BLOCK AND BLEED VALVE, FLANGE X FLANGE (MODEL NO.SBB-FBNF)