Lever Operated Flanged Centerline Butterfly Valve ：
This lever operated flanged butterfly valve is a centerline soft-seated valve, widely used in municipal water supply, building HVAC and general water treatment pipelines. The ductile iron body with blue epoxy coating offers good corrosion resistance, while the rubber seat ensures reliable zero leakage for clean water and neutral fluids. Flanged connection makes installation and maintenance straightforward, fitting standard GB/ASME flanges. The hand lever drive allows fast 90-degree open/close with low operating torque, ideal for on-site manual control in small to medium diameter pipelines. Available in PN10/PN16 pressure grades and DN50 to DN300 sizes, with EPDM/NBR seat options to suit different water quality and temperature requirements (0℃ to 80℃). All valves are factory pressure tested to meet standard specifications.
Key Technical Specifications
Item
Specification
Type
Flanged Centerline Butterfly Valve
Actuator
Hand Lever
Nominal Pressure
PN10 / PN16 MPa
Working Temperature
0℃ ~ 80℃
Applicable Medium
Clean Water, Neutral Fluids
Connection Type
Flanged (GB/ASME standard flanges)
Seat Material
EPDM / NBR Rubber
Body Material
Ductile Iron with Blue Epoxy Coating
Size Range
DN50 ~ DN300
Main Component Materials
Valve Body: Ductile Iron with Blue Epoxy Coating
Butterfly Disc: Ductile Iron / Stainless Steel
Valve Stem: Stainless Steel
Seat Seal: EPDM / NBR Rubber
Product Features
1. Reliable Soft Seal: EPDM/NBR rubber seat ensures bubble-tight sealing for water pipelines.
2. Simple Flanged Installation: Fits standard flanges, easy to align and install in new or existing pipelines.
3. Low Torque Lever Operation: Lightweight lever for effortless 90-degree opening and closing.
4. Corrosion Resistant Coating: Blue epoxy coating prevents rust and extends service life.
5. Compact & Cost-Effective: Simple structure reduces material and installation costs.
6. Factory Pressure Tested: All valves pass strict shell and seal tests before delivery.
Application Industries
This flanged butterfly valve is widely used in:
• Municipal water supply and distribution networks
• Building HVAC chilled/hot water systems
• Industrial circulating water and wastewater treatment lines
• Commercial and residential plumbing systems
• General water distribution and process pipelines
