BALL VALVES MODULAR DOUBLE BLOCK AND BLEED BALL VALVE SERIES BTD-BTC-SSD VALVE DESIGN based on API 6D or API 6A or API 6DSS and customer requirements TEMPERATURE RANGE -150 to 662°F (-101 to 350°C) SIZE NPS 2-48 (DN 50-1200) NPS 1.13/16 –16.3/4 (DN 46-425) PRESSURE RATING ASME 150 - ASME 2500 API 5000-15000 FACE-TO-FACE As per Velan standard END CONNECTIONS RF, RTJ as per B16.5 &B16.47 BW, Butt Welded as per B16.25 Hub connection 6B, 6BX as per API6A BODY DESIGN Forged three-piece housing two balls SEAT DESIGN Soft or metal seated with hard facing on ball and seats Four Self relieving seats Four Double piston seats Combination seats FEATURES Double block and bleed design (DBB) Secondary seals in pure Graphite Anti-static device Anti-blowout stem O-ring / Lip seal configuration Emergency sealant injection on seats and stem available Low fugitive emission stem packing available CRA overlay on all dynamic sealing areas or on all wetted parts available Extended bonnet for low & high temperature available Low pressure loss through the valve BTC series: extremely compact valve design as per high pressure compact ball valves OPERATOR Manual: wrench or gear with padlocking Actuated: Pneumatic/ Hydraulic/Electric TESTING & CERTIFICATIONS Compliance with API 6D & ISO 5208 & API 598 inspection and testing Compliance with API 6A inspection and testing Compliance with API 6DSS Inspection and testing Fire safe and fire tested as per API 6FA/607 SIL 3 Certification as per IEC61508 Fugitive Emission as per ISO15848 PED 2014/68/UE Available as per API 6A standard: Product specification levels PSL 1, 2, 3, 3G, and 4 Performance requirement levels PR1, PR2 Design validation as per PR2F Modular double block and bleed valves combine two in-line isolation valves into a single body with an additional bleed valve used to drain or vent trapped fluid between the two obturators to ensure highest level of safety in double isolation and bleed service. Using a double block and bleed valve versus two separate valves saves weight and space on the piping layout and ensures a significant reduction of potential leakage to the atmosphere, minimizing any hazardous risk when transferring liquids or gas. Several unique features are available to offer advanced technical solutions suitable to deal with aggressive and severe offshore environments. Material selection is fully customizable to meet customers project specifications. Velan ABV S.r.l. Via Romana Ovest 27b | 55016 Porcari (LU), Italy Phone +39 0583 403587 | Fax +39 0583 949920 Società a socio unico soggetta alla direzione e coordinamento da parte di Velan Inc. Capitale Sociale: Euro 1.000.000,00 interamente versato C.F.: 01751390467 | P. IVA / VAT: IT01751390467 Numero di iscrizione al Registro imprese di Lucca: N.REA LU-168706 Created by Corilla Applications Upstream Midstream Products Ball valves Check valves Control valves Gate valves Actuators Utility News Downloads My Velan Corporate Privacy policy