Overview
The BOC Edwards 920927-844 is a CVB controls module valve box engineered for precision valve control in industrial vacuum systems. This control module operates at 24VDC with a 0.5A power requirement, making it suitable for integration into existing Edwards vacuum pump systems and related process control environments. The module is manufactured in the United Kingdom and has been used in semiconductor, LPCVD, and general vacuum chamber applications.
Key Features
- 24VDC power supply at 0.5A — standard industrial control voltage
- CVB (Controls Valve Box) design for solenoid valve actuation and monitoring
- Compact modular form factor for bench-top or panel mounting
- Compatible with BOC Edwards vacuum pumping systems and integrated control ecosystems
- Robust industrial-grade construction with UK manufacturing
Technical Specifications
The following specifications are based on manufacturer model documentation and market data:
| Parameter | Value |
| Manufacturer | BOC Edwards |
| Model Number | 920927-844 |
| Module Type | CVB Controls Valve Box |
| Input Voltage | 24VDC |
| Power Consumption | 0.5A nominal |
| Alternate Part Number | 0513-040S-0301 |
| Country of Origin | United Kingdom |
| Compatible System | BOC Edwards iH and vacuum pump control systems |
Typical Applications
- Semiconductor equipment vacuum chamber control
- LPCVD (Low Pressure Chemical Vapor Deposition) systems
- Vacuum pump isolation and vent valve actuation
- Process gas flow control in dry pumping systems
- Laboratory and industrial vacuum system automation
Compatibility & Replacements
Compatible With
- BOC Edwards iH series dry pumping systems
- BOC Edwards vacuum control networks and module interconnects
- Standard 24VDC industrial control systems
- Solenoid valve actuators in vacuum applications
Replaces / Drop-In Replacement For
Verify compatibility with your system integrator before ordering. The 920927-844 is a specific CVB controls module for Edwards systems; confirm exact module type in your installed base before purchasing as a replacement.
Works With
- BOC Edwards vacuum pump electronics modules
- Edwards iH Gas Module and purge control systems
- Standard industrial 24VDC power supplies and safety circuits
- Module connector network architecture (Harting-style connectors)





