Butterfly Valve
High-Quality Butterfly Valves for Industrial Applications
Butterfly valves are essential components in various industrial piping systems, offering reliable flow control with low-pressure drop. Our premium butterfly valves are engineered for durability, efficiency, and precise operation across multiple industries including water treatment, chemical processing, and HVAC systems.
Key Features of Our Butterfly Valves
- Robust cast iron or stainless steel construction
- Bubble-tight sealing with EPDM, PTFE, or Viton seats
- Operating temperatures ranging from -20°F to 400°F (-29°C to 204°C)
- Pressure ratings up to 250 psi (17.2 bar)
- Manual, gear, pneumatic, or electric actuation options
- Bi-directional flow capability
- Zero leakage performance
Technical Specifications
| Model | Size Range | Body Material | Seat Material | Pressure Rating | Temperature Range |
|---|---|---|---|---|---|
| BFV-100 | 2" - 12" (DN50 - DN300) | Ductile Iron | EPDM | 150 psi (10.3 bar) | -20°F to 250°F (-29°C to 121°C) |
| BFV-200 | 14" - 48" (DN350 - DN1200) | Stainless Steel 316 | PTFE | 250 psi (17.2 bar) | -20°F to 400°F (-29°C to 204°C) |
| BFV-300 | 2" - 24" (DN50 - DN600) | Carbon Steel | Viton | 200 psi (13.8 bar) | -10°F to 350°F (-23°C to 177°C) |
Butterfly Valve FAQ - Part 1
Q: What are the main advantages of using a butterfly valve compared to other valve types?
A: Butterfly valves offer several key advantages including compact design requiring less space, lightweight construction, lower cost compared to gate or globe valves of similar size, quick operation (90° rotation for full open/close), and minimal pressure drop when fully open. They're particularly suitable for large diameter applications where other valves would be prohibitively expensive or heavy.
Installation and Maintenance Guide
Proper installation ensures optimal performance of your butterfly valve:
- Align the valve properly with piping - avoid using valve to compensate for misalignment
- Use appropriate gaskets and ensure flange faces are clean and undamaged
- Support piping properly to prevent stress on valve body
- For actuated valves, verify power source matches actuator specifications
- Perform regular maintenance including lubrication of stem and inspection of seat/disc
Butterfly Valve FAQ - Part 2
Q: How do I select the right seat material for my butterfly valve application?
A: Seat material selection depends on your media and operating conditions. EPDM is excellent for water applications up to 250°F. PTFE handles corrosive chemicals and higher temperatures (up to 400°F) but has less elasticity. Viton is suitable for oils and fuels with good temperature resistance. Consider chemical compatibility, temperature range, pressure, and required service life when choosing seat material.
Available Actuation Options
- Manual: Lever or gear operated for simple applications
- Pneumatic: For quick operation with compressed air systems
- Electric: Precise control with motor actuators
- Hydraulic: High-torque applications
Butterfly Valve FAQ - Part 3
Q: Can butterfly valves be used for throttling applications?
A: While primarily designed for on/off service, many butterfly valves can be used for throttling with certain considerations. High-performance butterfly valves with resilient seats provide better throttling capabilities than basic wafer-style valves. The flow characteristic is roughly equal percentage between 15° and 60° opening. Avoid prolonged operation at openings less than 15° as this may cause cavitation or seat damage.
Industry Applications
Our butterfly valves serve diverse industries:
| Industry | Typical Applications | Recommended Materials |
|---|---|---|
| Water Treatment | Pump discharge, flow control, isolation | Ductile iron body, EPDM seat |
| Chemical Processing | Corrosive media control, tank isolation | Stainless steel, PTFE seat |
| HVAC | Chilled water systems, cooling towers | Cast iron, EPDM seat |
For expert assistance in selecting the perfect butterfly valve for your application, contact our engineering team with your specific requirements including media type, temperature, pressure, and flow characteristics.