BALL VALVES SUBSEA FULLY WELDED TRUNNION BALL VALVE SERIES SX2 and SX3 VALVE DESIGN based on API 6DSS and customer requirements TEMPERATURE RANGE -76 to 410°F (-60 to 210°C) SIZE NPS 2-48 (DN 50-1200) PRESSURE RATING ASME 150-ASME 2500 FACE-TO-FACE As per API 6D standard END CONNECTIONS RF, RTJ as per B16.5 &B16.47 BW, Butt Welded as per B16.25 Hub connection SW, Socket Welded as per B16.11 BODY DESIGN Forged welded two-piece and three-piece SEAT DESIGN Soft or metal seated with hard facing on ball and seats Self relieving seats Double piston seats FEATURES Double block and bleed design (DBB) Anti-static device Anti-blowout stem Dynamic seals in O-ring/lip seal configuration CRA overlay on all dynamic sealing areas or on all wetted parts available OPERATOR Manual: Gear with ROV receptacle or handwheel Actuated: Hydraulic with or without ROV receptacle / handwheel override baric compensator for operators TESTING & CERTIFICATIONS Compliance with API 6DSS Inspection and testing SIL 3 Certification as per IEC61508 PED 2014/68/UE Hyperbaric validation testing as per API 6DSS (available on request) Cap test as per API 6DSS (available on request) Subsea fully welded ball valves are suitable in water depths to 500 mt (1700 fit) and maintain an average service life of 25 years. Valves are designed with two or three fully welded forged pieces with a solid double trunnion configuration and two independent seats with bidirectional sealing ensuring the greatest level of tightness and reliability under high pressure and temperature conditions in all critical isolation services. The fully welded body construction ensures a lighter solution and avoids potential leak paths to the external environment. As a result, the valves are an excellent choice in marine and subsea pipelines. Subsea fully welded trunnion ball valves may be completed with a subsea gear and ROV receptacle for remote operation by ROV or with a handwheel for manual operation by the diver. As an alternative, valves can be fitted with hydraulic subsea actuators, fully compensated in a double or single acting configuration, with or without ROV override. 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 Notice We and selected third parties use cookies or similar technologies for technical purposes and, with your consent, for other purposes as specified in the cookie policy. You can consent to the use of such technologies by closing this notice. Learn more and customize Accept ×