Marsh Bellofram 961-156-000 High Flow Relay is a precision pneumatic control device designed to provide accurate pressure regulation and high-volume air flow for industrial automation and process control systems. Part of the Bellofram Type 79 series, this 1:1 ratio air relay is engineered to amplify flow capacity while maintaining precise output pressure control. Utilizing Bellofram’s rolling diaphragm technology, the relay offers excellent sensitivity, low pressure droop, and dependable performance under varying flow and supply pressure conditions. The rugged industrial construction is designed for long service life in demanding manufacturing and process environments.
The 961-156-000 High Flow Relay is commonly used in valve actuation systems, pneumatic control circuits, tension control equipment, cylinder positioning applications, process automation systems, and industrial machinery requiring rapid response and high air flow capacity. Its ability to boost pneumatic signal flow while maintaining accurate pressure control makes it ideal for control valves, actuators, dampers, and other air-operated devices. The Type 79 series is designed for reliable operation in harsh industrial environments and can be mounted in a variety of pneumatic control configurations.
Key Features:
- Marsh Bellofram 961-156-000 High Flow Relay
- Type 79 Precision Air Relay
- 1:1 Pressure Ratio
- High Flow Capacity Design
- 0-200 PSI Output Range
- Precision Pneumatic Pressure Control
- Bellofram Rolling Diaphragm Technology
- Low Pressure Droop Performance
- High Sensitivity and Accuracy
- Rugged Industrial Construction
- Suitable for Automation and Process Control Applications
Applications:
- Pneumatic control systems
- Control valve actuation
- Process automation equipment
- Cylinder positioning systems
- Tension control machinery
- Industrial manufacturing equipment
- Air-operated actuators
- Pneumatic signal boosting applications










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