Pressure comparator M91

Description
The Model 91 high-pressure selector relay is designed to compare two signal pressures and deliver the higher pressure as a stable output or an adjustable pressure range to a controller. Its precise switching and fast response make it suitable for dead-end and low-flow situations where accurate pressure selection and monitoring are required, such as precision control loops in industrial processes.

Features

• Compact, rugged construction for installation in confined spaces
• Soft-seat design ensures positive shutoff and leak minimization
• Low selection differential for accurate switching between signals
• Fast response time for control in critical and precision loops
• Automatic switching eliminates the need for manual signal monitoring

Technical specifications

• Function: Selects the higher of two signal pressures and provides a continuous output pressure or pressure range to a controller
• Design: Small, rugged construction suitable for limited-space installations
• Seat: Soft-seat construction for reliable shutoff
• Selection differential: Low differential for precise switching control
• Response: Fast response suitable for precision control loops and critical applications
• Operation: Automatic switching for dead-end or low-flow applications