Cast Steel Trunnion Mounted Ball Valve

Cast Steel Trunnion Mounted Ball Valve – ODKS Series

For Reliable, Long-Lasting Flow Control in Demanding Industrial Environments
Our ODKS Series Cast Steel Trunnion Mounted Ball Valves are engineered to deliver robust, leak-tight performance for critical applications where safety, durability, and operational efficiency are non-negotiable. Designed for industrial professionals—including procurement managers, process engineers, and project leads—this valve series combines precision manufacturing with advanced materials to solve common pain points in high-pressure, high-temperature, and corrosive fluid systems.

Specification	Details
Product Name	Cast Steel Trunnion Mounted Ball Valve
Model Series	ODKS
Size Range	DN50 – DN600 (2” – 24”)
Pressure Rating	Class 150 – Class 900 / PN16 – PN160
Connection Type	Flanged (RF/RTJ), Butt Weld
Design Standard	API 6D, ASME B16.34, GB/T 12237
Body Material	WCB, LCB, WC6, WC9, CF8, CF8M
Ball/Stem Material	A105, F304, F316, Inconel (with hardfacing options)
Seat Material	PTFE, RPTFE, PEEK, Metal-to-Metal (for high-temperature service)
Operation	Lever, Gearbox (Worm Gear), Pneumatic/Electric Actuator
Special Design	Fire-safe design, Anti-static device, Blow-out proof stem
Operating Temperature	-196°C to 600°C (-320°F to 1112°F)
Compatible Media	Crude oil, natural gas, refined products, chemicals, water, steam

Core Advantages: Solving Your Most Pressing Operational Challenges
1. Zero Leakage & Fire-Safe Compliance
Our trunnion-mounted design eliminates the risk of seat extrusion under high pressure, ensuring bubble-tight shutoff even after years of cyclic operation. The fire-safe construction meets API 6FA and API 607 standards, providing critical protection against external fire exposure by maintaining sealing integrity and preventing catastrophic fluid release.
2. Extended Service Life & Reduced Downtime
The fixed ball design distributes operating loads evenly, minimizing wear on seats and bearings compared to floating ball valves. Hardfaced ball and stem surfaces (Stellite® or equivalent) resist erosion and cavitation, extending mean time between maintenance (MTBM) and reducing unplanned shutdowns.
3. Low Operating Torque & Energy Efficiency
Precision-engineered bearing systems and optimized flow paths drastically reduce operating torque, allowing for smaller, more cost-effective actuators and manual gearboxes. This lowers both capital equipment costs and ongoing energy consumption for automated systems.
4. Versatility for Extreme Conditions
With a wide range of body materials, seat options, and temperature ratings, the ODKS Series adapts seamlessly to cryogenic, high-temperature, and corrosive applications—eliminating the need for custom-engineered solutions for most industrial scenarios.

Technical Details: Built for Performance & Durability
Material Science
• Body: Cast steel alloys (WCB, WC6, CF8M) provide exceptional tensile strength and corrosion resistance, tailored to your specific fluid and temperature requirements.
• Ball & Stem: Precision-machined from forged alloy or stainless steel, with optional hardfacing to resist abrasion and chemical attack. The blow-out proof stem design ensures safety in the event of overpressure.
• Seats: Modular seat design allows for easy replacement. Soft seats (PTFE/RPTFE) deliver tight shutoff for general service, while metal-to-metal seats are ideal for high-temperature or abrasive media.
Design Innovations
• Trunnion Mount: The ball is supported at both top and bottom, reducing friction and preventing seat damage during high-pressure operation.
• Anti-Static Device: Grounds static electricity buildup, critical for flammable gas and liquid applications to avoid ignition risks.
• Body & Seat Sealing: Dual sealing systems (primary soft seat + secondary metal seal) provide redundant protection against leakage, meeting the strictest industry safety standards.

Application Scenarios: Where Our Valves Excel
The ODKS Series Cast Steel Trunnion Ball Valve is the preferred choice for:
• Oil & Gas: Pipeline transmission, refineries, storage terminals, and offshore platforms.
• Petrochemical: Processing of crude oil, refined fuels, and chemical intermediates.
• Power Generation: Steam systems, boiler feedwater, and flue gas desulfurization (FGD).
• Chemical Processing: Corrosive acids, solvents, and high-purity chemical production.
• Water & Wastewater: Potable water distribution, sewage treatment, and industrial process water.
• LNG & Cryogenics: Low-temperature liquefied gas handling (with cryogenic-grade materials).

Maintenance Convenience: Minimizing Operational Disruption
We designed the ODKS Series for ease of maintenance to reduce your total cost of ownership:
• Inline Repairable: Most components (seats, seals, stem packing) can be serviced without removing the valve from the pipeline, cutting downtime.
• Modular Components: Standardized parts across the series simplify inventory management and reduce lead times for replacements.
• Clear Access Points: Grease injection ports and vent/drain valves allow for routine lubrication and system pressure testing without full disassembly.

Why Choose Our ODKS Series Ball Valve?
For industrial professionals who demand reliability, compliance, and cost-effectiveness, our ODKS Series Cast Steel Trunnion Mounted Ball Valve represents the gold standard in flow control. Backed by rigorous quality testing (including hydrostatic, shell, and seat leakage tests per API 6D), and a global supply chain for on-time delivery, we provide the confidence you need to specify valves for mission-critical projects.
Whether you’re designing a new pipeline, retrofitting a refinery, or optimizing a power plant, our engineering team is ready to collaborate with you to select the exact configuration, material, and actuation solution for your application.
Ready to specify? Contact our sales engineering team today to review your project requirements and receive a customized quote.