CBF01-TF01
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Double Flanged Butterfly Valve with Full SS Body & Disc | Corrosion-Proof Industrial Solution
Tianjin Worlds Valve Co., Ltd. – API 609 & PED-Certified Manufacturer
CBF01-TF01-Operation and Maintenance Manual DOWNLOAD

1. Superior Corrosion Resistance & Extended Service Life
The Full Stainless Steel Body and Disc construction, typically made from grades like CF8M (316 SS), provides excellent corrosion resistance against acids, alkalis, salts, and various aggressive media.
Stainless Steel Material significantly enhances the valve service life in harsh applications, reducing replacement frequency and total cost of ownership.
2. Double Flanged Robustness
The Double Flanged Connection design ensures a strong, stable mechanical link to the piping system, effectively preventing leaks and withstanding higher pipe stress. 。
This flange structure, combined with high-quality seat materials (like EPDM or PTFE), enables bubble-tight bidirectional sealing, meeting strict safety and environmental standards for high-pressure and high-temperature applications.
3. High Operational Efficiency and Low Maintenance Cost
The inherent butterfly valve design is simple, compact, and allows for quick operation.
The stainless steel disc ensures smooth media flow with a low pressure drop, minimizing energy loss.
Its low operating torque allows for easy manual operation or simple adaptation to pneumatic actuators and electric actuators for automation.
The robust stainless steel construction requires minimal maintenance, drastically reducing long-term maintenance costs.

Model | CBF01-TF01 |
Sizes | DN50-DN2000 |
Pressure Class | PN10 (10bar) PN16 (16bar) 150LB JIS10K |
Design | API 609 EN593 BS5155 EN1092 ISO5211 |
Test | API598 ISO5208 EN12266-1 |
Flange Connection | DIN2501 PN10/16, ISO7005-2 PN10/16, EN1092-2 PN10/16, ANSI B16.5 Class 150LB, ANSI B16.47 Series A Class 150LB, ANSI B 16.1 MSS SP44 Class 150LB, AWWA C207 |
TOP Flange | ISO5211 (according to customer’s needs) |
Face to Face | EN558-1 API609 DIN3202 ISO5752 BS5155 |

Chemical Processin: HCl/NaOH dosing (≤40% concentration), chlorine gas control
Marine & Offshore: Seawater cooling systems with DNV-GL certification
Food & Beverage: Dairy, brewing, and edible oil processing
Semiconductors: Ultra-pure water loops
Source CE, UKCA, ACS, WRAS and ISO 9001 certified Double Flanged Butterfly Valve with Full SS Body & Disc from a leading butterfly valve manufacturer - Tianjin Worlds Valve Co.,Ltd.. Competitive pricing, fast delivery—request a quote today!
This article introduces a 10-inch PTFE lined lug butterfly valve featuring a ductile iron body, a PTFE seat, and a PTFE-encapsulated ductile iron disc–rated at Class 150. With full PTFE encapsulation ensuring zero metal contact and bubble-tight sealing, this valve is ideal for aggressive chemical, pharmaceutical, and semiconductor applications. As an LRQA-certified ISO 9001:2015 OEM/ODM manufacturer with over 19 years of export experience, Tianjin Worlds Valve Co., Ltd. offers fully customizable solutions to meet specific project requirements.
Double flanged butterfly valve for heavy-duty systems: ductile iron body, CF8M disc, vulcanized EPDM seat for zero leakage and metal isolation. Electric actuator (on-off/modulating with feedback), PN16, fully customizable. Certified ISO 9001, CE, UKCA, WRAS, ACS; 100% pressure tested with traceable certs. Factory direct, 15–40 days lead time.
Wafer butterfly valve with ductile iron body, CF8 disc, and EPDM seat. Reliable bubble-tight shut-off for water, HVAC, and industrial systems. OEM/ODM available.
This guide covers everything you need to know about lug butterfly valves—why they outperform wafer valves in dead-end service and isolated maintenance, how material selection (ductile iron, stainless steel, carbon steel) impacts performance, and key installation and maintenance best practices. Learn the lug vs wafer comparison, common selection mistakes to avoid, and how to choose the right body material, seat, and actuator for water treatment, chemical processing, oil & gas, and HVAC applications. Backed by ISO 9001 certification and full OEM customization with 19+ years of export experience.
This guide covers PTFE lined butterfly valve operation, components, and benefits of virgin PTFE with a 3‑4 mm thick liner (50% thicker than standard). The inert PTFE surface provides chemical resistance (pH 0‑14), purity, and bubble‑tight sealing from ‑40°C to 200°C. Applications include chemical, pharmaceutical, food, water, oil & gas, and semiconductor industries. It compares linings, offers a selection guide, and details quality tests (30KV spark, hydrostatic, traceability). From Tianjin Worlds Valve (19+ years), the article highlights virgin PTFE, thick liner, and certifications (ISO, CE, UKCA, etc.) ensuring reliable, low‑maintenance, cost‑effective control for aggressive and high‑purity fluids.
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