PRODUCT DESCRIPTION
HONEYWELL P7640A-1026 - High Pressuretrol Limit Control
This is a high-pressure limit control from the P7640A series, engineered for critical safety applications in industrial steam and air systems. It features a manual reset function, requiring operator intervention after an overpressure event to prevent automatic system restart. The device precisely monitors system pressure and actuates a Single Pole Double Throw (SPDT) switch upon reaching a predefined high-pressure setpoint, safeguarding equipment from excessive pressure conditions.
Technical Specifications:
- SERIES/FAMILY: P7640A Series
- COMPONENT TYPE: High Pressure Limit Control (Pressuretrol)
- OPERATING MEDIUM: Steam, Air
- PRESSURE RANGE: 100 to 300 psi (7 to 21 kg/cm2, 700 to 2100 kPa)
- DIFFERENTIAL: Fixed 15 psi (1.0 kg/cm2, 100 kPa)
- MAXIMUM SUSTAINED PRESSURE: 350 psi (24 kg/cm2, 2400 kPa)
- SWITCHING ACTION: Single Pole Double Throw (SPDT)
- RESET METHOD: Manual Reset
- ELECTRICAL SPECS: 120VAC, 240VAC, 277VAC (Pilot Duty 125VA)
- PRESSURE CONNECTION: 1/4 inch NPT female
- ENVIRONMENTAL/MOUNTING: NEMA 1 enclosure, Surface mount
- APPLICATION: High-pressure limit control for industrial boilers, steam generators, air compressors, and process control systems.