CBF04-TL01
OEM|ODM
| Availability: | |
|---|---|
| Quantity: | |
Lug Type PTFE Seat & Disc Butterfly Valves with Worm Gear | Corrosion-Proof Precision Control
Tianjin Worlds Valve Co., Ltd. – ISO 9001 & FDA-Compliant Industrial Solutions
CBF04-TL01---Operation and Maintenance Manual DOWNLOAD

1. Full PTFE Encapsulation
Seat & Disc: Virgin PTFE encapsulation eliminates metal contact, resisting 98% sulfuric acid, chlorine, and solvents (pH 0-14).
2. Heavy-Duty Worm Gear Operation
High Gear Ratio: Reduces manual torque by 40% vs. lever valves at PN16 pressures.
Sealed Gearbox: Weatherproof design for outdoor/chemical exposure with visual position indicator.
3. Lug-Type Structural Integrity
Direct Pipeline Mounting: Threaded lugs enable installation without nuts – ideal for end-of-line service.
Thermal Stress Relief: 3D-machined lugs prevent thread distortion during thermal cycling (-50°C to 200°C).
4. Fire-Safe & Cryogenic Ready
LNG Compatibility: DNV-GL certified for -196°C cryogenic service.
5. Certified Quality
Compliant with ISO 9001, API 609, and CE, WRAS, UKCA, ACS standards, ensuring global acceptance.
Rigorous quality control processes, including pressure testing and material inspection.

Name | Material |
Body | Cast Iron Ductile Iron Carbon Steel Stainless Steel AL-Bronze |
Disc | PTFE Ductile Iron Carbon Steel Stainless Steel AL-Bronze |
Shaft | Stainless Steel Monel K500 |
Seat | PTFE |

Lug-Type Butterfly Valves with PTFE Seat & Disc are engineered for critical applications requiring zero metal contact, corrosion immunity, and sterile integrity:
1.Aggressive Chemical Processing: Transfer of 98% sulfuric acid, hydrochloric acid (≤30% concentration), and caustic soda with no corrosion risk.
Pharmaceutical High-Purity Systems: WFI distribution and CIP/SIP lines compliant with FDA sterility requirements (USP Class VI).
2.Semiconductor Ultra-Pure Fluids: Handling of electronic-grade chemicals (HF, NH₄OH) and specialty gases per SEMI F57 particle standards.
3.Cryogenic LNG Service: Leak-tight control of LNG/liquid nitrogen at -196°C without seal embrittlement.
4.Sanitary Food & Beverage: Acid/alkali cleaning fluid pipelines with full FDA 21 CFR 177.1550 compliance.

1. Expertise in OEM/ODM Services
As a trusted PTFE Lined Butterfly Valve Factory, we offer customized solutions tailored to your specific requirements. From design to delivery, we ensure seamless execution.
2. Global Reach with Local Support
With a presence in over 50 countries, we provide timely delivery and dedicated customer support worldwide.
3. Competitive Pricing
Our efficient manufacturing processes and economies of scale enable us to offer high-quality valves at competitive prices.
4. Comprehensive After-Sales Service
We have a professional technical team that provides technical support, installation guidance, and maintenance services.
Discover high-quality Lug Type PTFE Seat & Disc Butterfly Valves with Worm Gear from a trusted manufacturer-Tianjin Worlds Valve Co., Ltd.. ISO & FDA certified, corrosion-resistant, and built for demanding industries. Request a quote now!
This technical article compares EPDM, NBR, and PTFE valve seat materials for industrial applications. It outlines the advantages of elastomers (EPDM for water, NBR for oils) and the necessity of PTFE for aggressive chemicals and temperatures up to 200°C. Crucially, it clarifies the engineering difference between a "PTFE seated valve" and a "PTFE fully lined valve." The guide includes a material selection matrix and concludes with Tianjin Worlds Valve's manufacturing capabilities and CE/PED, WRAS, and ACS certifications.
This article introduces an 8-inch PTFE lined butterfly valve with a double flanged, two-piece split body design. The valve features a fully PTFE lined body bore and flange faces, a PTFE encapsulated stainless steel disc, and a PTFE seat—providing complete metal isolation and excellent corrosion resistance for chemical, pharmaceutical, petrochemical, and seawater applications. The split body allows in-line maintenance and field-replaceable PTFE components. 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 compares wafer and double flanged butterfly valves to help engineers and buyers select the right connection type. It details the advantages of wafer valves (compact, cost-effective) and double flanged valves (rigid, dead-end service, large-diameter applications), and explains the in-between option of lug valves. It also highlights the importance of selecting the right seat material (like PTFE for corrosive media). Tianjin Worlds Valve is introduced as a certified OEM/ODM manufacturer of all three body styles.
This article introduces a DN1600 double offset butterfly valve with a ductile iron (EN-GJS-500-7) body and disc, an SS420 stem, an SS316 metal seat, and an electric actuator with worm gear. It explains the double offset working principle, why the design suits large-diameter service, how each material contributes to strength, wear resistance, and corrosion resistance, and where this configuration is typically used. It also covers installation and maintenance considerations for large valves. Tianjin Worlds Valve Co., Ltd. is presented as an LRQA-certified ISO 9001:2015 OEM/ODM manufacturer with over 19 years of export experience, offering customizable large-diameter butterfly valve solutions.
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.
Home | About Us | Products | Solutions | Certifications | Contact Us
No.25,Fuhui Road,Beizhakou Industrial Zone,Jinnan District ,Tianjin,China
Copyright By © Tianjin Worlds Valve Co.,Ltd.