CBF02-TU03
OEM|ODM
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Industrial DI U-Type Butterfly Valve | Energy-Efficient Flow Control Solution
Tianjin Worlds Valve Co., Ltd. – ISO 9001, CE, UKCA & WRAS Certified Manufacturer
CBF02-TU03--Operation and Maintenance Manual DOWMLOAD

1. U-Shaped Disc Hydrodynamics
Optimized Flow Path: Advanced computational fluid dynamics (CFD) design reduces pressure drop by 25-30% compared to conventional disc configurations
Energy Efficiency: Lower flow resistance translates to substantial pumping energy savings in continuous operation systems
Cavitation Control: Streamlined disc profile minimizes turbulent zones, extending valve and pipeline service life
2. Ductile Iron Robustness
Material Excellence: EN-GJS-500-7 ductile iron provides superior mechanical strength and impact resistance
Corrosion Protection: Standard 250μm epoxy coating with optional 300-400μm thickness for aggressive environments
Structural Integrity: Reinforced body design withstands water hammer and pressure surges up to PN16 rating
3.Premium Sealing Performance
Bubble-Tight Shutoff: EPDM/NBR/PTFE seat options ensure zero leakage compliance with EN 12266-1 Class A standards
Temperature Adaptability: Reliable performance across -20°C to 120°C operational range
Long Service Life: Resilient seating materials maintain integrity through 50,000+ operating cycles
4. Operational Excellence
Low Torque Operation: Double offset design reduces operating torque by 35% for smooth manual or actuated control
Maintenance-Free Design: Self-lubricating bearings and corrosion-resistant components eliminate routine maintenance
Versatile Actuation: ISO 5211 mounting pad compatible with manual levers, gear operators, or pneumatic/electric actuators

Size | DN32-DN600 | DN650-DN2000 |
Working pressure | 16Bar | 10Bar |
Shell | 24Bar | 15Bar |
Seal | 18Bar | 11Bar |
Operating Temperature | -20℃~+120℃ | |
Operating Environment | Ballast and bilge system Chemical processing Desalination plants Drilling rigs Drinking water Dry powder Food and beverage Gas plants HAVC Mining industry Paper industry Sand handling Seawater Sugar industry Thermo technical water treatment Waste water | |
Driving method | Hand Lever Worm Gear Electric Pneumatic | |

Name | Material |
Body | Cast Iron Ductile Iron Carbon Steel Stainless Steel AL-Bronze |
Disc | Ductile Iron Carbon Steel Stainless Steel AL-Bronze |
Shaft | Stainless Steel Monel K500 |
Seat | BUNA NBR EPDM VITON PTFE TEFLON HEPDM Neoprene Hypalon Natural rubber |
Water Treatment Plants: Pump discharge control, filtration systems, and chemical dosing
HVAC Systems: Chilled water circuits, cooling towers, and energy transfer stations
Industrial Processing: Cooling water networks, process fluid control, and utility systems
Fire Protection: Sprinkler systems and fire water supply lines
Irrigation Systems: Mainline control and zonal management in agricultural applications
Municipal Water: Distribution networks, pumping stations, and reservoir control

Energy Saving Design: U-shape disc technology significantly reduces pumping costs through minimized pressure loss
Durability Assurance: High-grade ductile iron construction ensures long-term reliability in demanding environments
Performance Verification: CFD-optimized hydrodynamics validated through laboratory testing and field applications
Global Compliance: CE, UKCA, and WRAS certifications ensure international market acceptance
Customization Ready: Modified disc profiles, coating specifications, and connection types available for OEM projects
Technical Expertise: Engineering support for application analysis and system integration
Through innovative U-shaped disc design and robust ductile iron construction, this industrial butterfly valve delivers unmatched flow efficiency and reliability for water, HVAC, and processing applications worldwide.
This troubleshooting guide covers seven common butterfly valve problems — external flange leakage, internal seat leakage, stem packing leaks, incomplete operation, high operating torque, body corrosion, and actuator failures — along with root causes and practical field solutions. It includes a preventive maintenance schedule and a repair-or-replace decision guide. As an LRQA-certified ISO 9001:2015 OEM/ODM manufacturer, Tianjin Worlds Valve Co., Ltd. supplies butterfly valves in multiple configurations and seat materials to support reliable long-term operation.
This article introduces a through-hole wafer butterfly valve featuring a split body design, PTFE seat, polished stainless steel disc, and ductile iron body. The through-hole mounting eliminates threaded lugs, allowing bolts to pass through the body and flanges for secure, cost-effective installation. The split body construction enables in-line maintenance and field-replaceable PTFE seats, while the PTFE seat provides superior chemical resistance for aggressive media. Ideal for chemical processing, pharmaceutical, petrochemical, water treatment, and desalination applications. As an LRQA-certified ISO 9001:2015 OEM/ODM manufacturer with over 15 years of export experience, Tianjin Worlds Valve Co., Ltd. offers fully customizable solutions to meet specific project requirements.
This article provides a material selection guide for 18-inch wafer butterfly valves used in water and wastewater systems. It explains why a ductile iron body, CF8M stainless steel disc, and EPDM seat form a balanced configuration for large-diameter water service. Key topics include material properties, installation best practices, common pitfalls, and maintenance tips. The article concludes with guidance on matching materials to specific applications and introduces Tianjin Worlds Valve as an OEM manufacturer capable of customizing valves to project requirements.
This article explains how OEM and ODM cooperation works with a Chinese valve supplier, focusing on customizable butterfly valves. It covers the differences between OEM and ODM, what can be customized (materials, dimensions, actuation, testing, branding), the step-by-step process, required buyer information, and the importance of standards and documentation. Tianjin Worlds Valve Co., Ltd. is presented as a direct OEM/ODM manufacturer with ISO 9001 (LRQA) certification, offering wafer, lug, flanged, U-type, PTFE/PFA-lined butterfly valves, customizable materials, and full documentation. The article concludes that successful OEM/ODM sourcing depends on an approved specification that can be reproduced consistently.
This article explores key growth regions and emerging opportunities for butterfly valves, covering MENA (desalination and water security), North America (infrastructure renewal), Europe (water resilience and compliance), and Asia-Pacific (urban and industrial expansion). It identifies three high-potential emerging applications–water reuse and desalination, district cooling and automated HVAC, and chemical/corrosive service – and explains how regional trends translate into real valve orders. The article also highlights Tianjin Worlds Valve Co., Ltd.'s OEM/ODM capabilities, including WRAS-approved potable water valves, PTFE/PFA-lined valves for corrosive media, and full customization across sizes, materials, and international standards. As an LRQA-certified ISO 9001:2015 manufacturer with over 19 years of export experience, the company supports B2B buyers in matching regional demand with the right technical specifications.
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