Q61F Extended Butt-Weld Three-Piece Ball Valve Overview

The Q61F Extended Butt-Weld Three-Piece Ball Valve is a specialized ball valve featuring an extended neck design, butt-weld ends, and a three-piece bolted construction. The valve body is forged from steel and consists of three sections connected by bolts, with a notably extended bonnet section and butt-weld ends at both sides. The valve is operated via an extended stem, which drives the ball through a 90-degree rotation for opening and closing, utilizing sealing pairs made of PTFE or metal materials.This design is specifically engineered for demanding applications that require isolation of the valve cavity from heat, prevention of packing freeze-up, or ease of operation outside insulation or cryogenic layers. It is widely used in pipeline systems handling liquefied gases, high-temperature media, cryogenic fluids, and in petrochemical and energy industries where external insulation or heat tracing is necessary.

Q61F Extended Butt-Weld Three-Piece Ball Valve Product Image

Q61F Extended Butt-Weld Three-Piece Ball Valve Features

1.  Extended Neck Design: The significantly elongated bonnet structure effectively isolates the valve stem packing and actuation mechanism from the temperature of the main pipeline fluid. This makes it ideal for cryogenic, high-temperature, or applications requiring external heat tracing or insulation.

2.  Butt-Weld Connection for Zero Leakage: Featuring butt-weld ends for permanent, integral welding to the pipeline. This design fundamentally eliminates potential leak points associated with flanged connections, ensuring high safety.

3.  Three-Piece Construction for Easy Maintenance: The three-piece bolted body design allows for internal inspection, maintenance, or seal replacement by simply removing the center section, without cutting the pipeline. This greatly simplifies the maintenance process and reduces downtime.

4.  Suitability for Extreme Temperatures: The extended neck design distances critical operating components from the main fluid stream. Combined with appropriate sealing materials, it can reliably operate across a wide temperature range, from -196°C to over +200°C.

5.  Compact, High-Pressure & Reliable Performance: The forged steel body ensures high-pressure strength and structural integrity within a compact footprint. The extended design does not compromise pressure-bearing capacity, making this valve an ideal choice for demanding applications involving simultaneous extreme temperatures and high pressure.