Product Description

SLVCN Class 1500 A105 Twin Ball DBB Valve with Worm Gear Operation is designed for high-pressure industrial pipelines, offering reliable double block-and-bleed isolation and leak-free performance. Its trunnion-mounted twin balls, central bleed port, and heavy-duty forged steel body ensure operational safety and long-term durability under extreme pressure.

The valve is engineered with fire-safe, anti-static, and blowout-proof stem design, making it ideal for flammable, toxic, or hazardous media. Worm gear operation reduces torque, allowing large-bore valves to be safely and efficiently controlled by a single operator.

Widely used in Oil & Gas, Chemical, Petrochemical, Power Generation, Offshore, and Industrial Process applications, this high-performance valve combines precision sealing, robust construction, and flexible operation, design according to API 6D, ASME B16.34, and BS 5351 standards while supporting automation through ISO 5211 direct mounting.

Key Features

✓ True Double Block & Bleed Isolation

Dual trunnion-mounted balls with central bleed port provide reliable double isolation, leak detection, and pressure release for high-risk, high-pressure pipelines.

✓ Heavy-Duty Forged Body & Trunnion Support

A105 forged steel body with robust trunnion support ensures stable sealing, high-pressure durability, and long-term reliability in demanding industrial conditions.

✓ Fire-Safe & Anti-Blowout Stem Design

Engineered with fire-safe construction, anti-static protection, and blowout-proof stem, offering safe operation in flammable, hazardous, or high-pressure systems.

✓ Worm Gear Operation for Large Valves

Integrated worm gear significantly reduces operating torque, enabling safe, controlled single-person operation of large-diameter valves.

✓ Flexible Control & Automation Ready

Twin balls can operate independently or synchronously, supporting dual-line flow, emergency shut-off, or flow merging, with ISO 5211 mounting for pneumatic or electric actuation.

Parts List