EBF01-TF02
OEM | ODM | WDS
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Double Offset PN25 Butterfly Valve with Double Flanges and Gear Operator | Heavy-Duty Industrial Flow Control
Tianjin Worlds Valve Co., Ltd. – API 609 & ISO 5211 Certified Manufacturer
EBF01-TF02-Operation and Maintenance Manual DOWNLOAD

1. Double Offset Eccentricity
offset disc design reduces seat friction by 60%, extending service life.
Anti-cavitation performance minimizes turbulence in high-velocity flows.
2. Double Flanged Robustness
Double flange butterfly valves offer a compact and robust design for easy installation and long service life.
They provide excellent sealing capabilities and bidirectional flow control, making them ideal for various industrial applications.
3. High-Pressure Sealing
A PN25 rated high-pressure butterfly valve is engineered to handle demanding applications with a nominal pressure of 25 bar.
It typically features a robust design with a double-flanged connection, a resilient seated or high-performance metal-seated disc, and a sturdy shaft to ensure reliable shut-off and control in high-pressure systems for water, oil, gas, and other industrial services.

Model | EBF01-TF02 |
Sizes | DN100-DN1800 |
Pressure Class | PN10 (10bar) PN16 (16bar) PN25(25bar) |
Design | API 609 BSEN593 BS5155 |
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 |
Face to Face | EN558-1 Series 13, ISO 5752 Series 13 |

Oil & Gas: High-pressure crude pipelines and refinery isolation.
Chemical Processing: Sulfuric acid (≤80%) and chlorine gas control.
Power Generation: Main steam bypass and cooling water systems.
Marine: Seawater cooling with DNV-GL anti-corrosion approval.
Water Treatment: High-pressure pump discharge and filtration units.

Source CE, UKCA, ACS, WRAS and ISO 9001 certified Double Offset PN25 Butterfly Valve with Double Flanges and Gear Operator from a leading butterfly valve manufacturer - Tianjin Worlds Valve Co.,Ltd.. Competitive pricing, fast delivery—request a quote today!
This lug butterfly valve features a C95400 aluminum bronze disc, a PTFE seat, a split body construction, and a hand lever. The aluminum bronze disc provides exceptional corrosion resistance in seawater, brackish water, and aggressive chemical environments. The PTFE seat offers chemical inertness, low friction, and a temperature range of approximately -35°C to +200°C. The two-piece body allows easy maintenance without pipeline removal. The lug design enables dead-end service at full rated pressure. Available DN50-DN1200, PN10/PN16/Class 150. Suitable for marine, chemical, desalination, and industrial applications. Manufactured by Tianjin Worlds Valve Co., Ltd., an ISO 9001 certified OEM supplier.
This lug butterfly valve features a PTFE-encapsulated stainless steel disc and a PTFE seat, providing zero metal contact and exceptional chemical resistance across pH 0–14. The pneumatic actuator enables fast, remote on/off or modulating control with double-acting or spring-return options. The lug body allows dead‑end service at full rated pressure. Available DN50-DN900, PN10/PN16/Class 150, -35°C to +200°C. Ideal for aggressive chemicals, high-purity pharmaceuticals, and food processing. Fully customizable. Manufactured by Tianjin Worlds Valve Co., Ltd., an ISO 9001 certified OEM supplier.
This 4”(DN100) butterfly valve from Tianjin Worlds Valve Co., Ltd. features a ductile iron body and CF8M disc,Replaceable EPDM seat, and electric actuator. The two stem configuration provides exceptional torsional strength, precise disc alignment, and extended service life. The electric actuator enables remote on/off or modulating control with ISO 5211 direct mounting and SCADA integration. Available DN50-DN300, PN10/PN16/Class 150, –20℃ to +120℃ . Suitable for water, seawater, HVAC, and mild chemical applications. Fully customizable. Manufactured by Tianjin Worlds Valve Co., Ltd., an ISO 9001 certified OEM supplier.
This 20-inch (DN500) lug butterfly valve from Tianjin Worlds Valve Co., Ltd. features a ductile iron body and disc, EPDM seat, and worm gear operator. The lug design enables bi-directional dead-end service at full rated pressure, ideal for large-diameter isolation points and maintenance shut-offs. The EPDM seat provides bubble-tight sealing for water, treated water, and mild chemical services from -20°C to +120°C. The worm gear delivers smooth, self-locking manual operation with an ISO 5211 top flange for actuator mounting. Rated PN10/PN16/Class 150. Fully customizable materials and actuation. Manufactured by an ISO 9001 certified OEM supplier with CE, UKCA, WRAS, ACS certifications available.
Lug butterfly valve with ductile iron body, CF8M disc, and field-replaceable soft EPDM seat. Dead-end service capable. Sizes DN50‑DN600, PN10/PN16/Class 150. Easy maintenance, corrosion resistant. OEM customizable. ISO 9001 certified.
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