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China Universal-Flange Wafer Butterfly Valve Suppliers | Factory Direct for Water Applications, DN25-DN1200
Features
Bubble-tight shut-off at full pressure rating
The seat and the disc are the only two valve parts in contact with the medium.
Superior design for abrasive and erosive media.
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.
Large number of material combinations available.
Standardized actuator flange for easy operator interchangeability.
Top bushing absorbs side thrust loads.
Hub seal provided by preloaded contact between flatted seat surface and disc hub area for positive sealing at all disc positions.
One-piece wafer thin disc stem gives the very minimum obstruction to flow.
Field replaceable seat isolates the body and stem from the flow.
Molded-in O-rings provides flange sealing and eliminates need for gaskets.
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.
Tianjin Guoji Valve Co., Ltd. is an export-oriented valve manufacturer with 15,332 square meter factory area, which has strong capability of R&D, Manufacture, Trading and Service. Now our company has passed the Lloyd's Register (LR) ISO9001: 2015 quality management system certification (ISO Approval number: ISO 9001 – 00033059) and CE/PED certification (EU Certificate Of Conformity). (Certificate No: 0343/PED/SHA/BJG00001668/A).
TGV's products covered Butterfly valves, Check valves, Strainers, Gate valves, Ball valves, Globe valves, Expansion joints, Flanges and Fittings with pressure range from 0.5 to 6.4 MPa, size from DN15 to DN3000. The products also have been widely exported to more than 30 countries and regions.
We aim at deliver only quality valves with professional services, we see quality and service as life and always take our reputation and promises seriously.
Frequently Asked Questions
Q
What types of body materials are available for the Universal Wafer Butterfly Valve?
The valve body is available in a wide range of materials including Cast Iron, Ductile Iron, CF8, CF8M, WCB, Duplex Stainless Steel, Al-Bronze, and Aluminium, allowing it to suit various industrial and corrosive environments.
Q
What is the pressure rating of this butterfly valve?
The valve supports pressure ratings of PN10, PN16, 150 PSI, 200 PSI, and Class 150, making it suitable for a broad range of low-to-medium pressure applications in water, HVAC, and industrial systems.
Q
What standards does this valve comply with?
The valve conforms to internationally recognized standards including API609, EN593, EN558-1 Series 20, DIN3202 K1, and ISO5752 for face-to-face dimensions. Flange drilling follows EN1092, JIS, ANSI150, AS Table D/E, and SANS standards. The actuator mounting flange complies with ISO5211.
Q
Can the seat be replaced in the field without removing the valve?
Yes. The valve features a field-replaceable cartridge seat design. The seat consists of a reinforced back-up ring with vulcanized elastomer material, which isolates the body and stem from the flow medium and can be replaced without special tools, significantly reducing maintenance downtime.
Q
What types of actuators are compatible with this valve?
The universal ISO5211 mounting flange supports all common operator types, including 10-position handle kits, gear operators, electric actuators, and pneumatic actuators, offering maximum flexibility for automation and manual control configurations.
Q
What industries and applications is this butterfly valve suitable for?
This valve is widely used across HVAC systems, water supply and sewage treatment, food and beverage processing, chemical and petrochemical industries, power generation and utilities, paper and pulp manufacturing, and marine applications, thanks to its versatile material options and robust sealing performance.