Gear Operated Wafer Butterfly Valve
Features：
• Only two components—the seat and the disc—are wetted by the medium.
• Ideally suited for applications where the flow medium is abrasive or erosive.
• Designed with a replaceable cartridge seat.
The seat is formed by a reinforced backing ring with the elastomer vulcanized to it. When the valve is installed between pipe flanges, this sturdy seat stays firmly in place, resisting any distortion or shifting. The cartridge configuration also avoids common issues such as elastomer stretching or bending in front of the disc during operation.
• A broad range of material options is available.
• A standardized actuator mounting flange is provided, allowing operators to be easily interchanged.
• Preloaded contact between the flattened seat surface and the disc hub creates the hub seal, delivering reliable sealing regardless of disc position.
• The disc and stem are formed as a single, wafer‑thin unit that creates minimal flow resistance.
- The seat can be replaced in the field, effectively separating the body and stem from the flow medium.
• Molded‑in O‑rings take care of flange sealing, making separate gaskets unnecessary.
• Universal mounting flange:
The actuator flange is integrally cast and conforms to ISO 5211 dimensions, enabling it to accept a full array of operators—including 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 |
Gear Box |
Ductile iron/Aluminum |
|
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 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)
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.
