1. Valve Type and Design
Wafer vs. Lug Style: Wafer valves are lightweight and fit between flanges, while lug-style valves have threaded inserts for easy installation.
Double Offset vs. Triple Offset: High-performance valves (double/triple offset) reduce wear and improve sealing for demanding applications.
2. Material Selection
Body Material: Choose between cast iron, ductile iron, stainless steel, or PVC based on pressure, temperature, and corrosion resistance needs.
Disc Material: Stainless steel or coated discs enhance durability in aggressive environments.
Seat Material: EPDM, PTFE, or Viton seals should match fluid compatibility and temperature requirements.
3. Pressure and Temperature Ratings
Ensure the valve meets the system's maximum pressure (PN/Class ratings) and temperature range to avoid failure.
4. Operation Method
Manual (Lever/Gear Operated): Suitable for low-frequency use.
Actuated (Electric/Pneumatic): Ideal for automated systems requiring remote control.
5. Industry Standards & Certifications
Check compliance with standards like API 609, ISO 5752, or AWWA for quality assurance.
6. Supplier Reliability
Evaluate the manufacturer’s reputation, lead times, and after-sales support.
Request product samples or test reports if needed.
7. Maintenance and Lifespan
Opt for valves with easy maintenance features, such as replaceable seals, to reduce downtime.
Final Tips
Clearly define your operational requirements before purchasing.
Compare multiple suppliers for cost, quality, and service.
By considering these factors, you can select the best butterfly valve for your application, ensuring long-term performance and cost efficiency.
Need expert advice on valve selection? Contact our team today!
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