CBF04-TF01
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PTFE Lined Flanged Butterfly Valves Abrasion Resistant | Superior Wear Protection Solution
Tianjin Worlds Valve Co., Ltd. – ISO 9001, CE, UKCA & WRAS Certified Manufacturer
CBF04-TF01--Operation and Maintenance Manual DOWMLOAD

1. Reinforced PTFE Lining System
Enhanced Thickness Design: 3-4mm PTFE lining in high-wear zones provides superior abrasion resistance against solid particles up to 40% concentration
Complete Media Isolation: Full-body PTFE encapsulation prevents metal contact with abrasive and corrosive media
Temperature Resilience: Maintains lining integrity from **-35℃to 200℃** in continuous abrasive service
2. Flanged Connection Reliability
Robust Flange Design: ANSI B16.5 Class 150# or DIN EN 1092-1 PN16 flanges with reinforced neck construction
Secure Mounting: Serrated flange faces prevent gasket blowout under pressure fluctuations and vibration
Maintenance Access: Bolted flange connection enables easy internal inspection and component replacement
3.Abrasion-Resistant Construction
Wear Zone Reinforcement: Additional PTFE thickness at disc edges and seat contact areas extends service life by 200% compared to standard lined valves
Particle Deflection Design: Optimized disc geometry redirects abrasive particles away from critical sealing surfaces
Surface Hardness: PTFE lining with filler reinforcement achieves Shore D 65 hardness for enhanced wear resistance
4. Advanced Sealing Technology
Zero Leakage Performance: PTFE-to-PTFE seating system achieves EN 12266-1 Class A bubble-tight shutoff
Abrasion-Compensating Design: Resilient PTFE seating maintains seal integrity as wear occurs
Fire-Safe Option: Available with API 607 compliant secondary metal seals for emergency shutdown

Size | DN50-DN250 | DN300-DN600 |
Max Working pressure | 16Bar | 10Bar |
Operating Temperature | -35℃~+200℃(depending on pressure, medium and material) | |
Suitable Medium | Flesh Water, Waste Water, sewage, seawater, air, vapor, food, oils, medicine, alkailis, salt, ect | |
Top Flange | ISO5211(according to the customer need) | |
Design Standard | EN593 BS5155 | |
Face to Face | DIN558-1 API609 DIN3202 F16 ISO5752 BS5155 | |
Testing Inspection | EN12266-1 ISO5208 API598 | |
Flange Accommodation | ASME B16.1 125LB ASME B16.5 150LB BS4504 DIN2501 ISO7005 EN1092 | |

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 |

Mining & Mineral Processing: Tailings slurry, ore processing, and concentrate handling
Chemical Processing: Abrasive chemical slurries, catalyst handling, and pigment production
Wastewater Treatment: Grit removal, sludge handling, and abrasive effluent control
Power Generation: FGD slurry systems, ash handling, and bottom ash transport
Pulp & Paper: Stock preparation, coating slurries, and recycled fiber processing
Steel & Metals: Scale slurry, descaling lines, and abrasive waste streams

Extended Service Life: Reinforced PTFE lining in critical wear areas provides 2-3 times longer lifespan in abrasive service
Dual Protection: Combined abrasion and corrosion resistance for the most challenging applications
Reduced Maintenance: Robust construction and wear-resistant design minimize downtime and replacement costs
Global Compliance: CE, UKCA, and WRAS certifications ensure acceptance in international markets
Custom Engineering: Available with special lining formulations, thickness profiles, and wear-resistant enhancements
Technical Expertise: Engineering support for abrasive application analysis and wear protection solutions
Specifically engineered for extreme abrasive and corrosive services, these PTFE lined flanged butterfly valves deliver unmatched wear protection and reliability in mining, chemical processing, and industrial applications where both abrasion and corrosion resistance are critical.
This product introduces a wafer type PTFE butterfly valve with ductile iron body, SS316 mirror-polished disc, and PTFE seat. It offers excellent chemical resistance for strong acids, alkalis, solvents, and oxidizing media across DN50-DN600, pressure up to 16 bar, and temperature -35°C to 200°C. Fully customizable and ISO 5211 ready for actuator mounting.
This article introduces the double-offset flanged butterfly valve from Tianjin Worlds Valve Co., Ltd. The valve features DN400 size, Class 150 pressure rating, ductile iron body and disc, flanged end connections, and an ISO 5211 top flange for direct actuator mounting. It highlights the double-offset design for reduced friction and improved sealing, while emphasizing that specific performance data depends on seat material, coating, and operating conditions. The company operates an ISO 9001 certified manufacturing system and offers test reports, material certificates, and applicable certifications upon request.
The Two-Piece U Type Butterfly Valve with PTFE Seat and PFA-Wrapped CF8M Disc from Tianjin Worlds Valve Co., Ltd. represents a premium solution for severe corrosion applications where reliability, purity, and maintainability are critical. Its advanced material combination—PFA encapsulation over CF8M disc, PTFE seat, and all-CF8M body—provides exceptional protection against the most aggressive chemicals, while the two-piece construction simplifies maintenance and reduces downtime.
This guide explores butterfly valves in hydroelectric power plants, covering their role as turbine main inlet valves, penstock protection valves, and emergency shut-off devices. It highlights key design features—double-eccentric configuration, biplane disc, dry shaft, and replaceable seats—that deliver low operating torque, minimal head loss, and corrosion protection. Selection criteria include diameter (DN500 to DN5000+), pressure class (PN2.5 to PN25), flow velocity, actuation, and sealing type. Tianjin Worlds Valve provides ISO 9001 certified, custom-engineered butterfly valves with CE-PED, UKCA certification and proven global experience across 50+ countries.
This technical guide examines butterfly valve applications in commercial and industrial HVAC systems, focusing on chilled water distribution, condenser water loops, cooling tower bypass, and heating water isolation. The article covers material selection (epoxy-coated ductile iron, EPDM seats, stainless steel discs), actuation options (manual, electric, pneumatic with BMS integration). Tianjin Worlds Valve Co., Ltd. offers ISO 9001 certified, competitively priced butterfly valves engineered for HVAC service, with successful project delivery to over 50 countries worldwide.
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