Products

1. Product Overview

Our premium line of industrial cast steel floating ball valves is meticulously engineered to provide ultimate operational reliability, long-term durability, and robust fluid control under the most demanding industrial environments.

Core Applications: Specially optimized for high-efficiency pipeline transportation networks, municipal gas supply systems, petroleum distribution, and water treatment facilities.

Medium & Environmental Adaptability: This versatile valve series flawlessly handles natural gas, manufactured gas, liquefied petroleum gas (LPG), various oil products, and water. It delivers exceptional bidirectional sealing performance under challenging conditions, including ambient humidity up to 72%, a wide operating temperature range of -100°C ~ +450°C, and rated design pressures ≥PN1.6.

Operation & Automation Upgrade: The valve comes standard with a reliable manual worm gear mechanism for seamless fully-open or fully-closed operation. Featuring a standardized ISO 5211 actuator mounting pad, operators can effortlessly remove the manual gear and upgrade to pneumatic, electric, or hydraulic actuators at any time without dismantling the valve from the live pipeline.

2. Product Features

To ensure flawless, failure-free operation in hazardous, explosive, high-pressure, and volatile fluid environments, our ball valve architecture integrates multiple redundancy safety mechanisms:

Anti-Blowout Stem Design: The valve stem is engineered with an internal, bottom-loaded shoulder. In the event of abnormal pressure spikes or extreme pressure surges within the valve body cavity, the internal shoulder prevents the stem from being ejected, safeguarding on-site personnel. Integrated PTFE thrust washers ensure consistently low operating torque under high pressure.

Certified Fire-Safe Structure: Should a localized plant fire occur, the primary non-metallic soft polymer seats will disintegrate under extreme heat. Upon seat failure, our specialized metal-to-metal auxiliary sealing structure automatically engages with the polished ball under medium pressure, creating a tight mechanical barrier that prevents catastrophic external leakage and secondary disasters.

Integrated Anti-Static Device: The valve assembly features a built-in electrostatic grounding mechanism utilizing springs and plungers. This ensures constant electrical continuity between the ball, the valve stem, and the outer metallic casing, harmlessly discharging accumulated static electricity caused by fluid friction and completely eliminating spark risks in explosive gas environments.

Tamper-Proof Locking & Positioning Device: To protect critical infrastructure against unauthorized tampering, vandalism, or accidental operational errors on the production line, the valve gearbox or lever is equipped with a high-strength padlocking limit mechanism. This is an essential safety feature for cross-country pipelines and remote field installations.

Automatic Body Cavity Pressure Relief: When thermal expansion causes fluid trapped inside the enclosed body cavity to over-pressurize, the specialized seat design automatically bleeds the excess pressure upstream into the pipeline without requiring external assistance, protecting the structural integrity of the valve body and seals.

Flexible Configurations & Multi-Standard Compliance: Available in straight-through flow profiles with 2-piece or 3-piece split body designs. Manufacturing and testing strictly comply with leading international standards, including GB/T 12237, API 6D, ASME B16.34, and API 598. Connection ends fully support flanged and butt-welded (BWE) specifications, allowing for secure installation at any angle or orientation along the piping network.

3. Product Advantages

Leveraging precision manufacturing processes and premium material selection, this product line delivers exceptional long-term cost savings and technological advantages over conventional valves:

Ultra-Low Fluid Resistance for Maximum Efficiency: Ball valves possess the lowest fluid resistance coefficient among all valve types. Even our reduced-bore models maintain outstanding flow efficiency, drastically lowering pumping/transportation costs and preventing unwanted pressure drops across the pipeline network.

Rapid Quarter-Turn Operation for Emergency Shut-Off: Moving from fully open to fully closed requires only a swift 90° turn of the valve stem. This quick-acting capability makes the valve ideal for rapid isolation, immediate flow cut-off, and intuitive emergency manual operation.

Dynamic, Self-Adjusting Sealing for Zero Leakage: The valve seats are crafted from high-elasticity polymer compounds like premium PTFE. In low-pressure conditions, the elastic soft-seal structure easily ensures tight shut-off; more importantly, as line pressure rises, the sealing force amplifies dynamically against the ball to guarantee absolute zero leakage under high pressure.

Heavy-Duty, Leak-Free Stem Packing: During operation, the valve stem undergoes purely rotational movement without vertical travel, dramatically minimizing wear on the packing glands. The internal back-seat design ensures that sealing force increases alongside system cavity pressure, permanently eliminating external stem leakage risks.

Extended Operational Lifespan & Low Maintenance: Thanks to the superior self-lubricating properties of the core polymer sealing compounds, friction against the micro-polished ball surface is negligible. This yields exceptional lifecycle cost savings and significantly extends routine maintenance intervals.

Smooth, Unobstructed Bore for Viscous Media: The internal flow channel is engineered to be perfectly flat, smooth, and free of dead zones. This enables the seamless transport of crude oils, viscous fluids, and abrasive mineral slurries without risks of medium accumulation, stagnation, or valve clogging.

4. Components Specification

5. Main Parts & Materials

6. Material Property