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China Universal-Flange Wafer Butterfly Valve Suppliers - High-Quality Factory Direct for Water Applications
⚙ Features
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Bubble-tight shut-off at full pressure rating
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The seat and the disc are the only two valve parts in contact with the medium.
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Superior design for abrasive and erosive media.
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Replaceable cartridge seat — The replaceable seat consists of a reinforced back-up ring, on which the elastomer seat material is vulcanized. When mounting the valve between the pipe flanges this stable seat cannot be deformed or displaced. The cartridge design also prevents deformation when the valve is cycled, such as stretching and bending of the elastomer in front of the moving disc.
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Large number of material combinations available.
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Standardized actuator flange for easy operator interchangeability.
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Top bushing absorbs side thrust loads.
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Hub seal provided by preloaded contact between flatted seat surface and disc hub area for positive sealing at all disc positions.
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One-piece wafer thin disc stem gives the very minimum obstruction to flow.
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Field replaceable seat isolates the body and stem from the flow.
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Molded-in O-rings provides flange sealing and eliminates need for gaskets.
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Universal Mounting Flange — The cast-in actuator flange is universally designed in accordance with ISO 5211 standard dimensions. The mounting flange can accommodate all types of operators such as: 10-position handle kits, gear operators, electric actuators, and pneumatic actuators.
🔧 Materials Of Main Parts
| ITEM | PART NAME | MATERIAL |
|---|---|---|
| 1 | Body Material | Cast iron / Ductile iron / CF8 / CF8M / WCB / Duplex / Al-Bronze / Aluminium Etc. |
| 2 | Seat Material | EPDM / NBR / Buna / Viton / PTFE / Hypalon / Silicone / Neoprene Etc. |
| 3 | Stem Material | 45# / SS420 / SS410 / SS416 / SS316 / SS304 / Duplex stainless steel Etc. |
| 4 | Disc Material | DI+Ni, CF8, CF8M, CF3M, Duplex SS, Al-Bronze, DI+Nylon, DI+PTFE, DI Epoxy Etc. |
| 5 | Hand Lever | Malleable iron / Stamping steel / Aluminum / Stainless Steel |
| 6 | Bushing | PTFE / Bronze |
| 7 | O Ring | NBR / EPDM / VITON |
📜 Valve Standard
| Category | Details |
|---|---|
| Type | Lugged |
| Face to Face | API609, EN593, EN558-1 Series 20, DIN3202 K1, ISO5752 |
| Flange Drilling | EN1092 PN6 / PN10 / PN16 / JIS 5K / 10K / ANSI150 / AS Table D/E / SANS |
| Mounting Flange | ISO5211 |
| Pressure Rating | PN10 PN16 150PSI 200PSI Class 150 |
| Application | HVAC, Water Supply & Sewage, Food & Beverage, Chemical / Petrochemical Processing, Power and Utilities, Paper and Pulp, Marine |
📏 Dimensions (mm)
🔍 More Details
🏢 Company Strength
For over a decade, Tianjin Guoji Valve Co., Ltd. (TGV) has been a premier manufacturer and exporter of high-performance valves, fittings, and flow control solutions. Our product portfolio spans ball valves, gate valves, globe valves, check valves, butterfly valves, expansion joints, strainers, valve actuators, flanges, and pipe fittings—giving our clients a single, dependable source for diverse industrial needs. From oil and gas and petrochemicals to HVAC and waterworks, our components are engineered to deliver reliability and efficiency in critical applications. We take pride in our customer-first approach, combining rigorous quality assurance, competitive pricing, agile responsiveness, and strict adherence to delivery timelines. Whether you're planning a new project or optimizing existing systems, our team is ready to support you with tailored solutions and expert guidance. We invite you to share your inquiry with us—tell us your requirements, and we'll respond with a competitive quotation, technical details, and the commitment to quality you can count on.
❓ Frequently Asked Questions (FAQ)
Q
What is the pressure rating of this butterfly valve?
This butterfly valve supports pressure ratings of PN10, PN16, 150PSI, 200PSI, and Class 150, making it suitable for a wide range of industrial and commercial piping systems.
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What seat materials are available for this valve?
A wide range of seat materials is available, including EPDM, NBR, Buna, Viton, PTFE, Hypalon, Silicone, and Neoprene, allowing the valve to handle various media types including water, chemicals, and food-grade fluids.
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Is the seat replaceable in the field?
Yes. The valve features a field replaceable cartridge seat design. The seat consists of a reinforced back-up ring with vulcanized elastomer material, which can be replaced without removing the entire valve from the pipeline, reducing downtime and maintenance costs.
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What types of actuators are compatible with this valve?
The valve features a Universal Mounting Flange designed in accordance with ISO 5211 standard dimensions. It is compatible with 10-position handle kits, gear operators, electric actuators, and pneumatic actuators, offering maximum flexibility for automation.
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What industries and applications is this valve suitable for?
This butterfly valve is engineered for a broad range of applications, including HVAC, Water Supply & Sewage, Food & Beverage, Chemical/Petrochemical Processing, Power and Utilities, Paper and Pulp, and Marine industries.
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What flange drilling standards does this valve comply with?
The valve complies with multiple international flange drilling standards, including EN1092 PN6/PN10/PN16, JIS 5K/10K, ANSI 150, AS Table D/E, and SANS, ensuring compatibility with global piping systems and installation requirements.