Overview
The Worcester Controls B34N Series 34 Pneumatic Valve Actuator is engineered to deliver efficient and reliable valve automation for industrial applications. This pneumatic actuator utilizes a modified scotch yoke mechanism that provides tailored torque for fast, smooth, and positive operation throughout the full cycle. It is purpose-built for quarter-turn valves (ball and butterfly) and offers compact size with high torque output, making it a dependable choice for critical valve control systems.
Key Features
- Modified scotch yoke mechanism for smooth, positive quarter-turn operation
- 800 in-lbs operating torque; 1,000 in-lbs seating torque @ 100 PSI
- Maximum operating pressure: 125 PSI
- Two 1/8″ NPT air connections for flexible installation
- Compact, durable design suitable for ball and butterfly valve automation
- Factory-built for direct mounting to ISO flange or wafer-style valves
Technical Specifications
- Operating Torque: 800 in-lbs
- Seating Torque @ 100 PSI: 1,000 in-lbs
- Maximum Pressure: 125 PSI
- Breakaway Pressure: 80 PSI
- Air Connections: Two 1/8″ NPT ports
- Mounting Type: Top-mount, inline, or bracket
- Weight: 3.00 lbs
- Material: Ductile iron body with stainless steel trim
- Series: 34
Typical Applications
The Worcester Controls B34N is widely used in industries including:
- Oil and gas production and refining
- Water treatment and distribution
- Chemical processing and manufacturing
- HVAC and building automation systems
- Food and beverage production
- Pulp and paper manufacturing
- Power generation and steam systems
Compatibility & Replacements
Compatible With
- ISO flange and wafer-style quarter-turn ball valves
- Butterfly valves (2 to 12 inch sizes)
- Manual and remote pneumatic pilot control systems
- Solenoid air valve modules (optional upgrade to B34 series)
- Standard pneumatic air supply at 40–125 PSI
Replaces / Drop-In Replacement For
- Worcester Controls A34N (smaller torque variant)
- B34N (previous production batches)
- Series 34 competitors with equivalent torque ratings
Works With
- Remote pilot and solenoid air switches
- Manual 3-way air control valves
- Industrial pneumatic automation control systems
- Standard compressed air (ISO air preparation)
- Spring-return or double-acting configurations available via 34S models
