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Pneumatic Actuated Butterfly Valve Suppliers from China - Factory Direct with Custom Options for Various Sizes and Materials
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 | Wafer |
| 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
Looking for a reliable partner in valves and fittings? Tianjin Guoji Valve Co., Ltd. (TGV) has been delivering excellence since 2007. As a premier manufacturer and exporter, we offer a complete range of products—ball valves, gate valves, globe valves, check valves, butterfly valves, expansion joints, strainers, actuators, flanges, pipe fittings, and more. Our solutions serve critical industries, including oil and gas, petrochemicals, HVAC, and waterworks. What makes us different? Uncompromising quality control, competitive pricing, rapid response, and on-time delivery—every time. From standard components to customized system solutions, we are equipped to support your projects with precision and dedication. Ready to discuss your requirements? Send us your inquiry now—let us show you the value of working with a partner who truly delivers.
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.
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
What standards do your wafer butterfly valves comply with?
Our wafer butterfly valves comply with international standards including API609, EN593, EN558-1 Series 20, DIN3202 K1, and ISO5752 for face-to-face dimensions, with flange drilling options supporting EN1092, JIS, ANSI, and AS standards.
What materials are available for the valve body and seat?
The valve body is available in Cast Iron, Ductile Iron, CF8, CF8M, WCB, Duplex, and Al-Bronze. The seat options include EPDM, NBR, Buna, Viton, PTFE, Hypalon, Silicone, and Neoprene, allowing for customizations based on the application medium.
Can the actuator of the butterfly valve be easily replaced?
Yes. The valves are built with a standardized actuator flange designed in accordance with ISO 5211 dimensions. This universal configuration allows easy interchangeability with handle kits, gear operators, electric actuators, and pneumatic actuators.
What are the main application areas for these butterfly valves?
These valves are widely used in industrial operations including HVAC systems, Water Supply & Sewage, Food & Beverage processing, Chemical/Petrochemical processing, Power Utilities, Paper & Pulp, and Marine environments.
What quality certifications does Tianjin Guoji Valve Co., Ltd. (TGV) hold?
TGV is certified under Lloyd's Register (LR) ISO9001:2015 quality management system (Certificate No: ISO 9001 – 00033059) and CE/PED (EU Certificate Of Conformity No: 0343/PED/SHA/BJG00001668/A).