Key Specifications / Features
We supply an API 6D three-piece DBB ball valve in 12-inch DN300, class 600 LB PN100, with a full-bore design. The valve body adopts ASTM A105 or ASTM A105N forged steel, manufactured to the ASME B16.34 standard. This double block and bleed ball valve delivers reliable bubble-tight sealing for pipeline isolation and venting. It suits oil, gas, and petrochemical services, with full material test certificates and pressure tests to guarantee long-term stable operation.
Valve type: Trunnion-mounted ball valve
Structure: Three-piece bolted body
Operation: Worm gear-operated
Bore type: Full bore
Seat function: Double block and bleed
Design standard: API 6D, ASME B16.34
Flange standard: ASME B16.5
Face-to-face dimension: API 6D
Pressure class: Class 600 LB, PN100
Nominal size: NPS 12, DN300
Body material: ASTM A105, ASTM A105N
Ball material: ASTM A182 F304, ASTM A182 F316, Hard facing optional
Seat material: PTFE, RPTFE, PEEK, Devlon, metal-to-metal optional
Stem material: ASTM A182 F316
Bolt and nut: ASTM A193 B7, ASTM A194 2H
Operating temperature: -29 Deg C to +180 Deg C, cryogenic version available
End connection: Flanged end
Feature: Body cavity relief, seat sealant injection port
Application: Natural gas, oil, pipeline, process pipeline
Inspection and test: API 6D
Painting: Epoxy coating
Feature: Body cavity relief, seat sealant injection port
