Butterfly Valve (SUS304, Gear, 10K)
Model: PMV-26(SS,Gear)
PMV-26(SS,Gear) is a butterfly valve combining a SUS304 body and disc with an EPDM seat and a gear-operated manual operator. With a short face-to-face dimension, concentric construction, and 10K pressure rating as standard, it is used for large-bore manual shutoff lines in the chemical, plant, water/wastewater, and construction sectors.
Features
- Short face-to-face distance enables installation in confined spaces
- Simple structural design with low defect rate
- Quick open/close for effective fluid control
- High tightness and durability
- Concentric structure with low torque
Specifications
| End Connection | WAFER |
| Material | SS304 |
| Ball/Disc Material | SS304 |
| Seat Material | EPDM |
| Pressure | JIS 10K |
| Operation | Gear |
| Origin | China |
| Size | 040A, 050A, 065A, 080A, 100A, 125A, 150A, 200A, 250A, 300A |
Frequently Asked Questions
- How do I choose between gearbox and lever operation?
- Lever operation completes a 90° stroke in a single handle movement - fast and simple. A gearbox reduces operator torque through a reduction gear, making it suitable for large-bore valves, high differential pressure lines where lever operation is impractical, or sections requiring precise position holding. A gearbox is generally chosen as valve size increases.
- What is the applicable range of the EPDM seat?
- EPDM has outstanding durability for water, hot water, and mildly alkaline fluids and maintains good resilience in CIP/SIP environments. However, EPDM can swell when exposed to hydrocarbon fluids such as oils and fuels; for such environments, alternative seat materials such as NBR should be considered.
- Is partial-opening operation possible?
- Butterfly valves have an inherently non-linear relationship between disc rotation angle and flow rate, with the 30°-70° range being the practical throttling zone. A gearbox operator can maintain the disc at a desired position with precision, making it suitable for partial-opening operation. However, for sections requiring continuous precise flow regulation, a globe control valve should be considered.
- Can the valve be converted to actuated operation?
- By removing the gearbox and attaching a pneumatic or electric actuator to the ISO5211 direct mounting pad, the valve can be converted to automated operation without body replacement. This is a suitable platform for phased automation of large-bore lines - starting with manual gearbox operation and adding an actuator when remote control is later required.