Zero, Double and Triple Offset Butterfly Valves

Butterfly valves are available in different offset designs — zero, double, and triple offset — each offering distinct advantages in terms of sealing performance, torque, and application suitability. Understanding these differences helps in selecting the right valve for your process.

Zero Offset Butterfly Valves

• Traditional concentric design
• Simple and cost-effective
• Good for low to moderate pressure applications
• Resilient seat provides bubble-tight shut-off
• Common in water, HVAC, and general industrial service

Double Offset Butterfly Valves

• Offset stem and disc for reduced seat wear
• Lower operating torque than zero offset
• Better sealing performance under higher pressure
• Longer seat life
• Suitable for a wider range of applications

Triple Offset Butterfly Valves

• Third offset creates a cone-shaped sealing surface
• Metal-to-metal seating for high temperature and pressure
• Excellent for severe service and critical applications
• Zero leakage performance
• Ideal for oil & gas, chemical, and high-temperature service

Quick Selection Guide

• Zero Offset: Best for low-pressure, general service
• Double Offset: Good balance of performance and cost for medium-duty applications
• Triple Offset: Preferred for high-pressure, high-temperature, or critical service

Still unsure which offset type is best for your application? Call 908.362.9981 or submit the inquiry form and we’ll help you choose the right butterfly valve.