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Tianjin Worlds Valve Co., Ltd. offers a wafer butterfly valve featuring a ductile iron (DI / GGG40) body, a C95400 aluminum bronze disc, a replaceable soft EPDM seat, and hand lever operation–available in sizes from DN50 to DN3000, with the model described here at 8 inches (DN200). This valve is engineered for reliable on/off control and basic throttling in seawater, marine, water treatment, HVAC, and general industrial applications where corrosion resistance, durability, and maintenance efficiency are critical.
Product Type: Wafer Butterfly Valve
Body Material: Ductile Iron
Disc Material: Aluminum Bronze (C954)
Seat Material: EPDM(Seat material options vary depending on the media or customer preference.)
Connection Type: Wafer
Size Range: DN50–DN3000
Pressure Rating:
PN10 / PN16 / PN25/ JIS 5K/10K / 150LB...
Top Flange: Available in ISO 5211 standard for direct actuator mounting
Operating Temperature Range: -20℃ to 120℃ (EPDM)
Customization: All materials, dimensions, and pressure ratings can be modified according to customer requirements.
Get More Info:
CBF02-TA03 The brochure/datasheet for this particular valve.
1. C95400 Aluminum Bronze Disc – Superior Seawater & Corrosion Resistance
C95400 offers outstanding resistance to corrosion, pitting, and erosion in seawater, brackish water, and aggressive environments.
Provides high strength (minimum tensile strength 586 MPa) and impact resistance – reliable in frequent operation.
Anti-dezincification and erosion-resistant properties extend service life in marine and corrosive conditions.
Excellent resistance to wear, fatigue, and deformation under shock loading.
2. Ductile Iron Body – High Strength & Impact Resistance
GGG40/500-7 ductile iron (conforming to ASTM A536 standards) delivers tensile strength exceeding 400 MPa (65 ksi) and excellent ductility.
Provides high impact resistance and superior durability compared to gray cast iron.
Epoxy coating (any RAL color) protects against external corrosion.
3. Replaceable EPDM Soft Seat–Easy Field Maintenance
The EPDM seat can be replaced without removing the valve from the pipeline, significantly reducing downtime.
No special tools required–simple disassembly allows quick restoration of bubble-tight sealing performance.
EPDM offers excellent resistance to water, steam, ozone, and aging, with a temperature range of approximately -20°C to +120°C.
4. Hand Lever Operation–Simple & Intuitive Control
90° quarter-turn operation; lever position clearly indicates open (parallel to pipe) or closed (perpendicular).
Locking plate allows basic flow regulation at intermediate positions.
Ergonomic design requires low operating torque, suitable for frequent manual cycling.
5. Compact Wafer Design – Space-Saving Installation
Installs directly between standard pipeline flanges using through-bolts.
No companion flanges required – lightweight, compact footprint.
Face-to-face dimensions conform to ISO 5752 / EN 558 Series 20.
6. Wide Size Range – DN50 to DN3000
Covers everything from small branch lines (2″) to large-diameter water mains (120″).
8 inches (DN200) described; other sizes available upon request.
Suitable for seawater, marine, water treatment, HVAC, and industrial applications.
7. Bubble-Tight Shut-Off in Both Directions
Zero visible leakage sealing with no restriction in flow direction.
Reliable performance even under low pressure conditions.
Reduced pressure loss and energy costs.
8. Fully Customizable OEM/ODM Solution
Body materials: Ductile iron (standard), WCB, CF8, CF8M.
Disc materials: C95400 (standard), CF8, CF8M, duplex, super duplex.
Seat materials: EPDM (standard), NBR, Viton, PTFE.
Pressure ratings: PN10, PN16, Class 125, Class 150.
Flange standards: EN 1092, ANSI B16.5, AS2129, JIS.
Certifications: ISO 9001, CE, UKCA, WRAS, ACS available upon request.
1. Direct OEM/ODM Manufacturer – We produce in our own ISO 9001 certified factory, not a trading company. Every wafer butterfly valve is manufactured to your exact specifications.
2. C95400 Aluminum Bronze Disc Advantage – Superior seawater and corrosion resistance, high strength (586 MPa tensile strength), and proven performance in marine applications.
3. Replaceable Seat Advantage – Field-serviceable EPDM seat reduces downtime and maintenance costs – only the seat needs replacement, not the whole valve.
4. Broadest Size Range – From DN50 to DN3000, covering small branch lines to large‑diameter water mains.
5. Certified Quality – ISO 9001 certified with CE, UKCA, WRAS, and ACS certifications available upon request.
6. Full Documentation – Material certificates (mill test reports) and pressure test reports provided with every order.
7. 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 size, material, and pressure requirements–whether you need a standard 8-inch wafer butterfly valve or a fully customized solution up to DN3000 with special materials or actuation.
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No.25,Fuhui Road,Beizhakou Industrial Zone,Jinnan District ,Tianjin,China
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