Flange Butterfly Valves: High-Performance Flow Control with Unmatched Reliability
Our Flange Butterfly Valves are engineered for robust, leak-proof operation in demanding industrial and commercial applications. Featuring a 90° rotation mechanism, lightweight design, and corrosion-resistant materials, these valves deliver precise control, extended service life, and cost-efficient installation.
Key Features
- 90° Quick Operation
- Full open/close positioning in a 90° turn, enabling rapid flow adjustment and minimal operational downtime.
- Superior Control & Tight Shut-Off
- Maintains bubble-tight sealing even after countless cycles, ensuring zero leakage and consistent performance.
- Compact & Lightweight Design
- Reduces installation costs and space requirements, ideal for retrofitting or systems with limited piping clearance.
- Durable & Low-Maintenance
- Minimized component wear due to high-grade materials and precision engineering, guaranteeing decades of reliable service.
- Renewable Seats
- Seats are easily replaceable without additional gaskets, simplifying maintenance and reducing long-term costs.
- Full Protection from Service Fluid
- Body and stem are fully isolated from the media, preventing corrosion and contamination.
Technical Specifications
- Nominal Diameter (DN): 40 mm (1-1/2″) ~ 1200 mm (48″)
- Nominal Pressure (PN): 1.0 ~ 1.6 MPa
- Testing Pressure:
- Shell: 1.5 ~ 2.4 MPa
- Sealing: 1.1 ~ 1.76 MPa
- Working Temperature: -30°C to +200°C
Material Options
| Item | Part Name | Materials |
|---|---|---|
| 1 | Body | – Cast Iron: ASTM A126 CL.B, DIN1691 GG25, EN-GJL-200, GB12226 HT200 – Ductile Cast Iron: ASTM A536 65-45-12, DIN1693 GGG40, EN-GJS-400-15, GB12227 QT450-10 – Stainless Steel: ASTM A351 CF8, CF8M, CF3, CF3M – Carbon Steel: ASTM A216 WCB |
| 2 | Stem | – Zinc-Plated Steel – Stainless Steel: ASTM A276 Type 316, 410, 420; ASTM A582 Type 416 |
| 3 | Taper Pin | Stainless Steel: ASTM A276 Type 304, 316; EN 1.4501 |
| 4 | Seat | EPDM, NBR |
| 5 | Disc | – Ductile Cast Iron (Nickel-Plated): ASTM A536 65-45-12, DIN1693 GGG40, EN-GJS-400-15, GB12227 QT450-10 – Stainless Steel: ASTM A351 CF8, CF8M, CF3, CF3M; EN 1.4408, 1.4469, 1.4501 – AL-Bronze: ASTM B148 C95400 |
| 6 | O-Ring | NBR, EPDM, Neoprene, Viton |
Applications
- Industrial: Water treatment, chemical processing, HVAC, power generation, oil & gas, and pulp & paper.
- Commercial: Building services, fire protection, district heating, and ventilation systems.
- Municipal: Water supply, wastewater management, and irrigation networks.
Why Choose Our Flange Butterfly Valves?
✅ Efficient Flow Control: Precise 90° operation for rapid adjustments.
✅ Cost-Effective: Lightweight design reduces installation and material expenses.
✅ Material Versatility: Select from cast iron, ductile iron, stainless steel, or carbon steel to match your media and environment.
✅ Low Maintenance: Renewable seats and corrosion-resistant components minimize downtime.
Upgrade your piping systems with our Flange Butterfly Valves—where performance meets durability. Contact us for custom configurations, technical support, or bulk orders!
Available with manual, pneumatic, or electric actuators for enhanced automation and remote control.
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