One-Piece Ball Valve

One-Piece Ball Valve: API 6D, Flanged, Full Bore

The One-Piece Ball Valve is a high-performance shut-off valve designed for reliable isolation in various pipeline systems. Manufactured according to API 6D standards, it combines a robust full-bore ball design with a compact, single-piece body construction, reducing potential leakage paths and ensuring long-term durability. As a critical shut-off device, it is ideal for controlling the flow of oil, gas, petrochemical products, water, and other industrial fluids in high-pressure and high-temperature pipelines.

The integral design enhances structural integrity and minimizes maintenance requirements, making the valve especially suitable for frequent operation in demanding industrial environments. The ball and seat design ensures bubble-tight sealing under bi-directional flow, providing safe and reliable shut-off. With optional pneumatic or electric actuators, the valve can be operated remotely, enabling fast and efficient pipeline isolation during normal operation or emergency shutdown (ESD) situations.

Key Features

One-piece body design: reduces leakage risks, enhances structural strength, and simplifies maintenance.

Full bore configuration: ensures minimal pressure drop and supports pigging operations.

Reliable shut-off: ball and seat combination provides bi-directional, bubble-tight sealing under high pressure.

Actuation options: pneumatic or electric actuators enable automated and remote operation for safety and efficiency.

Safety enhancements: blowout-proof stem, anti-static device, and optional fire-safe design (API 607 / ISO 10497).

Protective Coating

Available with epoxy or fusion-bonded coatings suitable for harsh service conditions. Coating options compliant with ISO 12944 ensure long-term corrosion protection for offshore, coastal, and onshore pipeline installations.

Design & Standards

API 6D / ISO 14313: Pipeline shut-off valves

ASME B16.34: Pressure-temperature ratings

ASME B16.5: Flanged end dimensions

API 607 / ISO 10497: Fire-safe design (optional)

NACE MR0175 / ISO 15156: Sour service (optional)

Applications

Primary shut-off valve for oil, gas, and petrochemical pipelines

Emergency shutdown (ESD) and critical isolation systems

Water treatment and distribution pipelines

Offshore and onshore pipeline infrastructure

General industrial process pipelines requiring reliable flow isolation