Safe Signal Sprinkler EPS40-2 Pressure Control

The Safe Signal Sprinkler EPS40-2 Pressure Control is a specialized supervisory switch designed for monitoring dry pipe systems, pressure tanks, and water pressure supplies in automatic fire control valves. This high and low-pressure supervisory pressure switch features a field-adjustable 10-100 PSI pressure range, allowing for precise notification of system pressure fluctuations. Built with two SPDT relays (Single Pole Double Throw), the EPS40-2 is factory-set to trip on a pressure rise to 50 PSI and a pressure decrease to 30 PSI, ensuring your supervisory circuit remains compliant with NFPA 13 and NFPA 72 standards.

Constructed for longevity in commercial and industrial environments, the unit is housed in a NEMA 4 rated weatherproof enclosure, making it suitable for both indoor and outdoor installations. The 1/2" NPT male connection enables direct mounting to the air line, while the dual conduit entrances simplify wiring for fire alarm control panels. Technical professionals will appreciate the sensitivity adjustment wheel, which requires no special tools for field calibration, and the bellows-activated mechanism that provides a reliable differential of approximately 3 PSI at the low end of the scale.

• Dual-Stage Monitoring: Equipped with two SPDT switches to handle both high and low supervisory signals independently.
• Field Adjustable: Features a 10-100 PSI range with an internal adjustment wheel for easy on-site calibration without specialized tools.
• Rugged Construction: NEMA 4 / UL 4X enclosure provides superior protection against dust and moisture for reliable outdoor performance.
• Standard Compatibility: Utilizes a 1/2" NPT male connection for universal fitment on dry pipe valve air supplies.
• NFPA Compliant: Engineered to meet supervisory pressure switch requirements for fire suppression system monitoring.

• Can this be used on wet pipe systems? While designed primarily for dry pipe systems and pressure tanks, it can be used anywhere a 10-100 PSI supervisory signal is required; however, the EPS10 series is typically preferred for waterflow detection in wet systems.
• What are the electrical ratings for the contacts? The relays are rated at 10.0 Amp at 125/250 VAC and 2.5 Amp at 6/12/24 VDC.
• Does adjusting one switch affect the other? No, the synchronization of the high and low switches is maintained throughout the adjustment range via the internal mechanism.

Disclaimer: While we strive for 100% accuracy, product data and specifications are subject to change. Please contact our team to confirm compatibility or technical details before purchasing.