CBF02-TF01
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The unique double-flange design simplifies installation, eliminates gasket misalignment, and distributes pipeline stress evenly. Tested to 1.5x PN pressure with zero leakage, our valves outperform conventional models with 40% lower operating torque.

1.Zero-Leakage Seal: Full-rubber resilient seat (EPDM/NBR/Viton(FKM)/PTFE(Teflon)) ensures bubble-tight shutoff even at low pressures.
2.Corrosion Defense: Ductile iron body with epoxy coating (350μm) + 316 SS disc resists pitting, scaling, and electrolytic corrosion.
3.Bi-Directional Flow: Symmetric disc design handles reverse flow without performance loss.
4.Fire-Safe Option: provide metal seat + graphite seals.
5.Certified Reliability: CE PED 2014/68/EU | UKCA | WRAS | ACS | ISO 9001:2015

1. Expertise in OEM/ODM Services
As a trusted Double flanged 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
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.

Design Standard | EN 593 , MSS SP67 API 609 BS5155 |
Inspection & Test | API 598 ISO 5208 EN 12266 |
End Standard | ANSI B16.1 CL. 125LB & B16.5 CL. 150LB AS 2129 Table D & E BS 10 Table D & E DIN 2501 PN6, PN10 & PN16 EN 1092 PN6, PN10 & PN16 ISO 2531 PN6, PN10 & PN16 ISO 7005 PN6, PN10 & PN16 KS B 1511 / JIS B 2210 5K & 10K MSS SP44 CL. 150LB AWWA C207 SABS 1123 Table 1000/3 & Table 1600/3 |
Face to Face | ISO 5752 , EN 558 , MSS SP67 and API 609 DIN3202 |
Top Flange | ISO 5211 |

Discover high-quality Resilient Seated Double Flanged Butterfly Valves from a trusted Butterfly Valve Manufacturer. ISO & AWWA certified, customizable, and built for durability. Request a quote today! Ready to enhance your operations with top-quality Pneumatic Operated Butterfly Valves? Contact us today for a free quote or to discuss your custom requirements!
This article introduces a 14-inch wafer butterfly valve featuring a ductile iron body, a replaceable EPDM seat for easy field maintenance, a CF8 stainless steel disc, and a turbo gear operator – rated at PN16. 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.
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.
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