Cast Steel Floating Hard-Seated Ball Valve

Cast Steel Floating Hard-Seated Ball Valve

Engineered for demanding industrial fluid control applications, the ODKV series cast steel floating hard-seated ball valve delivers reliable shut-off and precise flow regulation in high-pressure, high-temperature, and corrosive environments. Designed to address common pain points such as seat wear, leakage, and operational inefficiency, this valve series combines robust construction with advanced sealing technology to ensure long service life and minimal downtime across critical processes.
Product Specifications：

Parameter	Details
Product Name	Cast Steel Floating Hard-Seated Ball Valve
Series	ODKV
Size Range	DN15 – DN300 (1/2” – 12”)
Pressure Rating	Class 150 – Class 600 / PN16 – PN100
Connection Type	Flanged (RF/FF/RTJ)
Design Standard	API 6D, ASME B16.34, GB/T 12237
Body Material	WCB, WC6, WC9, CF8, CF8M, CF3, CF3M
Ball/Stem Material	304, 316, 410, F51, F53 (duplex stainless steel)
Seat Material	Stellite® faced metal, Inconel®, ceramic, PTFE, RPTFE
Operation	Lever handle, gear operator, pneumatic/electric actuator
Special Design	Fire-safe design, anti-static device, blow-out proof stem
Operating Temperature	-196°C to +650°C (-320°F to +1202°F)
Compatible Media	Crude oil, natural gas, chemicals, steam, high-temperature fluids

Core Advantages
1. Zero Leakage Performance
The hard-seated design with precision-lapped metal-to-metal sealing eliminates fugitive emissions, a critical concern for industries subject to strict environmental regulations. Unlike soft-seated valves, our hard-seated solution maintains tight shut-off even under thermal cycling and abrasive media conditions, preventing costly leaks and ensuring compliance with API 607 fire-safe standards.
2. Extended Service Life
A floating ball design ensures uniform contact with the seat, distributing wear evenly across the sealing surface. Stellite® hardfacing on critical components resists erosion and cavitation, making the valve ideal for applications involving high-velocity flow or particulate-laden fluids. This durability reduces replacement frequency and lowers total cost of ownership (TCO) over the valve’s lifecycle.
3. Operational Safety & Reliability
Integrated safety features include a blow-out proof stem to prevent ejection under pressure, an anti-static device to dissipate static buildup (critical for explosive media), and a fire-safe structure that maintains sealing integrity during fire events. These design elements align with OSHA and industry safety guidelines, protecting personnel and assets in high-risk environments.

Technical Details
Material Engineering
• Body: Cast steel alloys (WCB, CF8M) provide exceptional mechanical strength and corrosion resistance, tailored to match process media and temperature requirements. For extreme corrosion, duplex stainless steel options offer superior pitting and crevice corrosion resistance.
• Ball & Stem: Precision-machined from high-grade alloys, with hardfacing applied to sealing surfaces to resist wear. The stem is designed to prevent galling and ensure smooth operation even after years of use.
• Seat: A range of hard-seat materials (Stellite®, Inconel®, ceramic) are available to match specific media, temperature, and pressure conditions, ensuring optimal sealing performance without compromising durability.
Design Innovations
• Floating Ball Principle: The ball floats between two seats, automatically adjusting to pressure and thermal changes to maintain tight sealing, eliminating the need for complex adjustment mechanisms.
• Fire-Safe Compliance: In the event of a fire, the valve’s metal-to-metal backup seal activates, preventing catastrophic failure and containing process fluids.
• Modular Actuation: Compatible with manual, gear, pneumatic, and electric actuators, allowing seamless integration into automated control systems for remote operation and process optimization.

Application Scenarios
The ODKV series cast steel floating hard-seated ball valve is engineered to perform across a wide range of industrial sectors:
• Oil & Gas: Pipeline transmission, refinery processing, and wellhead control, handling crude oil, natural gas, and sour gas.
• Petrochemical & Chemical: Acid, solvent, and chemical reagent transfer, with corrosion-resistant materials compatible with aggressive media.
• Power Generation: Boiler feedwater, steam, and high-temperature fluid control in thermal and nuclear power plants.
• Mining & Metallurgy: Slurry and abrasive fluid handling, leveraging hard-seated materials to resist erosion from particulate matter.
• Pharmaceutical & Food: Sanitary process control, with clean-in-place (CIP) compatible designs and FDA-approved materials.

Maintenance Convenience
Minimizing downtime is a core design priority:
• Easy Access: The valve’s bolted body design allows quick disassembly for inspection, seat replacement, or ball resurfacing without removing the valve from the pipeline.
• Standardized Components: All wear parts (seats, seals, stems) are standardized across the ODKV series, reducing inventory costs and simplifying replacement logistics.
• Predictive Maintenance: The robust construction and wear-resistant materials enable extended service intervals, with visual inspection points to monitor seal integrity and operational performance.

Procurement & Trust
When selecting a ball valve for critical industrial applications, reliability and compliance are non-negotiable. The ODKV series is manufactured under ISO 9001 quality management systems, with third-party testing and certification (API, CE, GOST) to validate performance and safety.
Our engineering team works closely with clients to customize valve specifications—including material selection, pressure ratings, and actuation—to match exact process requirements. With global supply chains and responsive after-sales support, we ensure timely delivery and ongoing technical assistance, from initial design consultation to long-term maintenance.
For projects demanding zero leakage, extended service life, and compliance with the strictest industry standards, the ODKV cast steel floating hard-seated ball valve is the trusted choice for industrial fluid control.