Views: 0 Author: Site Editor Publish Time: 08-24-2026 Origin: Site
Valve Type | Double Flanged Butterfly Valve (Concentric / Center-line) |
Body Material | Ductile Iron (GGG40 / 500-7) |
Disc Material | CF8M Stainless Steel (AISI 316) |
Seat Material | Vulcanized EPDM Rubber (body-bonded) |
Pressure Rating | PN16 (16 bar / 232 psi) |
Operation | Electric Actuator (on-off or modulating) |
Top Flange | ISO 5211 |
Coating | Epoxy Resin (any RAL color, standard 250μm thickness) |
Customization: All materials, dimensions, and pressure ratings can be modified according to customer requirements
Type: CBF02-TF01--Product Catalog
Integral Flanges on Both Ends–The valve bolts directly to mating pipe flanges on both sides, providing the most secure and rigid connection available–no shifting under pipe stress.
Easier Installation–With integral flanges, the valve is simpler to mount and align. No complicated centering procedures–just bolt it in place.
Bidirectional Dead-End Service–Supports isolation and removal of pipe sections on either side while the valve remains closed and sealed–a capability wafer valves cannot provide.
High Strength–Offers approximately twice the tensile strength of gray iron, ideal for PN16 service and pressure surge conditions.
Impact Resistance–The nodular graphite structure provides exceptional toughness, withstanding mechanical shock and vibration.
Corrosion Protection–Combined with standard epoxy coating (250μm minimum), provides reliable corrosion resistance for water and wastewater service.
Superior Corrosion Resistance–Excellent resistance to pitting and crevice corrosion, particularly in chloride environments and seawater.
Wide Chemical Compatibility–Suitable for water, wastewater, mild chemicals, acids, and alkalis.
Hygienic and Non-Toxic–Safe for potable water, food processing, and pharmaceutical applications.
Zero Leakage Path–Chemically bonded to the body with no gaps or crevices between the seat and valve body, eliminating potential leak paths.
Full Isolation of Metal–The vulcanized liner fully encapsulates all wetted metal surfaces, completely isolating the ductile iron body from the process fluid.
Eliminates Flange Gaskets–The vulcanized seat extends to the outer edge of the valve body, serving as an integrated flange seal–one less component to fail.
Quarter-Turn Operation–Rotates the disc 90° to open or close, enabling fast, precise flow control.
On-Off or Modulating–Available in switch-type or modulating versions with 4-20 mA feedback for PLC and SCADA integration.
Manual Override–Includes a handwheel for manual operation during power outages or maintenance.
This flanged butterfly valve is widely used across multiple industries:
Water Supply & Distribution–Municipal water mains, pumping stations, distribution networks.
Wastewater Treatment Plants–Sewage lines, treatment plants, effluent systems.
HVAC Systems–Chilled water, hot water, cooling tower systems.
Power Generation–Cooling water circuits, condenser systems.
Chemical Processing–Corrosive fluids, acids, alkalis (with CF8M disc and vulcanized seat).
Fire Protection Systems–Fire water lines, sprinkler systems.
Desalination & Marine–Seawater handling with CF8M disc for corrosion resistance.
We operate under a LRQA-audited ISO 9001:2015 quality management system. Every double flanged butterfly valve undergoes:
100% pressure testing (shell and seat) per EN 12266-1 or API 598.
Dimensional inspection against approved drawings.
Material verification with traceable mill test certificates (MTC).
ISO 9001:2015–Quality management system
CE–EU safety compliance
UKCA–UK conformity assessment
WRAS–UK drinking water approval (available on request)
ACS French health certification (available on request)
DNV / ABS–Marine approval (available on request)
Design and manufacturing comply with EN 593, API 609, and AWWA C504 standards.
Advantage | Benefit |
Direct Factory | No middleman–factory pricing and direct communication with engineering and production teams. |
19+ Years Export Experience | Smooth logistics and after-sales support to 50+ countries. |
Full OEM/ODM Customization | Materials, sizes, pressure ratings, flange standards, coatings, actuators, packaging – all tailored to your spec. |
International Certifications | ISO 9001, CE, UKCA, WRAS, ACS – DNV/ABS available on request. |
Complete Documentation | Material certificates, pressure test reports with every order. |
100% Pressure Testing | Every valve tested before shipment. |
Quick Response & On-Time Delivery | Dedicated project manager; typical lead time 15–40 days. |
Factory Visits Welcome | Tour our production lines in Tianjin, China. |
Whether you need this PN16 configuration with electric actuation or a fully custom design with specialized materials, larger diameters, or different actuators, we're ready to build to your specification.
Send us your enquiry with:
Required size and pressure rating
Media type and operating temperature
Preferred material combination
Actuator type and control requirements
Target quantity and destination port
Our sales team will respond within 24 hours with a competitive quotation and engineering proposal.
We warmly invite you to visit our factory in Tianjin. Let's build your valve together.
Email Sdress: dekai@worldsvalve.com
