Overview
The Worcester Controls B-34N-R4 is a compact, high-performance pneumatic valve actuator from the proven Series 34 line. Engineered to deliver efficient and reliable valve automation for industrial applications, it utilizes a modified scotch yoke mechanism to provide tailored torque for fast, smooth, and positive operation throughout the full cycle. This model is commonly found in HVAC, process control, and industrial valve automation systems requiring consistent, repeatable actuation.
Key Features
- Compact design offers a space-saving solution without compromising performance, making it suitable for installations where space is limited.
- Available in both double-acting and spring-return configurations to meet diverse operational requirements and provide flexibility in system design.
- High torque output delivers a breakaway torque of 160 in-lbs at 80 PSI for robust performance in demanding applications.
- Pneumatically powered 1/4 turn valve actuator using modified scotch yoke mechanism to match torque requirements of ball valves.
- Reliable industrial-grade construction proven across thousands of installed systems.
Technical Specifications
The following specifications apply to the Series 34 B-34N-R4 configuration:
- Operating Pressure Range: 60 to 125 PSI
- Breakaway Torque: 160 in-lbs at 80 PSI
- Mechanism Type: Modified scotch yoke
- Actuator Stroke: 1/4 turn (90°)
- Construction: Industrial-grade aluminum body with stainless steel fasteners
- Certifications: ISO 9001 certified manufacturing
Typical Applications
The Worcester Controls Series 34 pneumatic actuator is well-suited for:
- HVAC damper and valve control systems
- Process control and automation in manufacturing
- Industrial ball valve actuation in moderate to high torque applications
- Compact installations where space efficiency is critical
- Systems requiring repeatable, smooth 1/4 turn operation
- Retrofit and replacement projects in legacy pneumatic systems
Compatibility & Replacements
Compatible With
- Standard pneumatic supply systems operating 60–125 PSI
- Ball valves and butterfly valves designed for 1/4 turn actuation
- Pneumatic control systems and automation platforms
- HVAC zoning and process control networks
- Industrial process automation environments
Replaces / Drop-In Replacement For
- Worcester Controls B-34N-R3 (earlier revision)
- Other Series 34 B-34N configurations with matching port sizes and mounting
- Verify compatibility with your system integrator before ordering to confirm port designations and mounting brackets.
Works With
- Standard pneumatic tubing and fittings (NPT and metric ports available)
- Pneumatic control valves and solenoid pilots
- Manual and automatic pneumatic control systems
- Industrial automation and process control ecosystems
