Views: 0 Author: Site Editor Publish Time: 06-12-2026 Origin: Site
Tianjin Worlds Valve Co., Ltd. offers a high-quality lug butterfly valve with both body and disc manufactured from CF8 (AISI 304) stainless steel, a PTFE seat, and a polished disc secured to the stem with stainless steel pins. This 4-inch (DN100) model is engineered for reliable on/off control and basic throttling in applications requiring good corrosion resistance, low friction, and easy maintenance – from water treatment to chemical processing and high-purity systems.
Product Name: Lug Butterfly Valve
Body Material: Stainless Steel (CF8)
Disc Material: Stainless Steel (polished CF8)
Seat Material: PTFE, EPDM, NBR, VITON...(Seat material options vary depending on the media or customer preference.)
Connection Type: Lug
Size Range: DN50–DN1200
Pressure Rating:
PN10 / PN16 / PN25...
Top Flange: Available in ISO 5211 standard for direct actuator mounting
Operating Temperature Range: -35℃ to 200℃ (PTFE)
Customization: All materials, dimensions, and pressure ratings can be modified according to customer requirements
Type: CBF01-TL01--Product Catalog
1. All-CF8 Stainless Steel Construction – Corrosion Resistance
Both body and disc are cast from CF8 (AISI 304) – the cast equivalent of wrought 304 stainless steel.
Provides good resistance to oxidation, water, mild chemicals, and food-processing environments.
No external coating required for most services; long service life.
2. Polished Disc for Low Torque & Non-Stick Operation
The disc surface is polished to a smooth finish.
Reduces friction against the PTFE seat, lowering operating torque and preventing media adhesion.
Ideal for frequent cycling and applications where cleanliness is important.
3. Pin-Secured Disc – Positive Torque Transmission
The disc is fastened to the stem using one or two stainless steel pins.
Eliminates the risk of disc loosening or slipping – a common failure in spline or friction connections.
Ensures reliable torque transfer throughout the valve’s lifetime.
4. PTFE Seat – Superior Chemical Resistance & Low Friction
PTFE is inert to nearly all acids, alkalis, solvents, and oxidizing agents (pH 0–14).
Self-lubricating surface reduces torque and provides bubble-tight shut-off (Class VI).
Wide temperature range: -35℃ to +200℃.
5. Lug Body for Dead-End Service
Threaded lug inserts allow bolted connection to a single flange.
Enables end-of-line installation without downstream flange support.
Ideal for isolation points, maintenance shut-offs, and future pipeline extensions.
6. Wide Size Range & OEM Customization
Size range: DN50 to DN1200 (2″to 48″) – 4″(DN100) described.
Pressure ratings: PN10, PN16, Class 150 (customizable).
Flange standards: EN 1092, ANSI B16.5, AS2129, JIS, etc.
Operation: Hand lever, worm gear, electric actuator, pneumatic actuator (ISO 5211 top flange available).
Seat options: PTFE (standard); EPDM, NBR, Viton also available.
Disc options: CF8 (standard), CF8M, duplex, super duplex, aluminum bronze.
1. Direct OEM/ODM Manufacturer – We produce in our own ISO 9001 certified factory, not a trading company.
2. Material & Design Flexibility – CF8 body/disc, polished disc, pin‑secured stem, PTFE seat – all can be tailored to your media and temperature needs.
3. Wide Size Range – From DN50 to DN1200, covering small process lines to large water mains.
4. Certified Quality – ISO 9001, CE, UKCA, WRAS, ACS available upon request.
5. Full Documentation – Material certificates (mill test reports) and pressure test reports provided with every order.
6. Global Export Experience – Supplying valves to over 50 countries with reliable logistics and technical support.
We invite you to contact us for a competitive quotation or to arrange a visit to our factory. Our engineering team is ready to discuss your specific project requirements – whether you need a 4″ lug butterfly valve or a fully customized solution up to DN1200.
