The Dual Expanding Plug valves produce a watertight closure both upstream and downstream, being used in different sectors.
The design of these valves allows closure on both sides and venting in the valve chamber (double block & bleed). Since its sealing mechanism is not based on friction and wear on the closing elements we prevent product loss and contamination, in addition to meaning a long life
API 599: Metal Plug Valves - Flanged and Welding Ends
API 6D: Pipeline Valves. Pressure Test Specification.
ASME B 16.34: Valves-Flanged, Threaded, and Welding End.
ASME B 31.3: Process Piping.
ASME B 31.4: Pipeline transportation systems for Hydrocarbons and other liquids.
API RP 6FA: Specification for Fire Test for Valves.
API 6D: Pipeline Valves. Pressure Test Specification
API 598: Valve Inspection and Testing
ISO 15848: Industrial Valves - Measurement, test and qualification procedures for fugitive emissions
ASME B 16.5: Pipe Flanges and Flanged Fittings
ASME B16.47: large diameter steel flanges: nps 26 through nps 60
MSS SP 44: Steel pipeline flanges
ASME B16.25: Buttwelding ends
ASME B 16.10: Face-to-Face and End-to-End Dimensions of Valves
API 6D: Pipeline Valves. Pressure Test Specification
API 599: Metal Plug Valves - Flanged and Welding Ends
STANDARD SMI
MSS SP 45: By - Pass & Drain Connections