Centrifugal pumps commonly installed on swimming pools, spas, and hot tubs generate significant vacuum pressure at the pump inlet. Whenever a blockage occurs anywhere along the suction line, dangerously high vacuum levels build up rapidly. The Vacless SVRS system responds by instantly displacing its sealing element, allowing atmospheric air to rush through dedicated channels, which causes the pump to break prime and immediately releases any entrapment. Electronic configurations go a step further by activating a limit switch that sends a signal to the control panel, shutting down the circulation pump at the same time.

Vacless SVRS valves self-calibrate to accommodate virtually any existing pool plumbing layout and filtration system. The adjustable models deliver suction relief across even the most unconventional installations, compliance-tested to distances of up to 200 feet. At the heart of the system is a patented seal architecture that uses pneumatic compensation to adapt to variations across pool systems running 0.5 to 10.0 horsepower pumps. This orthogonal seal configuration places a rubber o-ring on a traveling disc, positioned to achieve simultaneous face and radial sealing. The face seal prevents ambient air from entering the pump during standard operation, while the radial seal governs the disc's travel path until it opens to admit air into the pump pot.

Vacless Electrical Breathers deliver instant vacuum relief during an entrapment event by flooding the pump pot with atmospheric air while simultaneously cutting power to the pump. All electrical units incorporate a three-minute delayed restart sequence and an audible warning alarm.

Key Benefits

• Self-Adjusting Vacuum Relief: Vacless SVRS valves automatically calibrate to your specific pool plumbing and filtration configuration, providing reliable suction relief across even the most non-standard installations. Each unit is compliance-tested for piping runs up to 200 feet.
• Patented Dual-Action Seal Technology: The orthogonal seal system combines face and radial sealing on a single traveling disc, ensuring leak-free pump operation under normal conditions while enabling split-second air release when dangerous vacuum levels are detected.
• Immediate Pump Deactivation: Electronic models incorporate a limit switch that instantly triggers pump shutdown upon detecting an obstruction, providing an additional layer of protection against entrapment hazards.
• Broad Horsepower Range and Durability: Engineered for pumps from 0.5 to 10.0 horsepower, Vacless Electrical Breathers deliver instant vacuum neutralization with a built-in three-minute restart delay and audible alert for safe, dependable operation across residential and commercial pool systems.
• Pneumatic System Adaptation: The proprietary seal architecture uses pneumatic compensation to automatically account for variations in plumbing layout, pipe diameter, and pump capacity, ensuring uniform performance regardless of system specifics.
• Millisecond Response Time: The seal mechanism detects and reacts to vacuum anomalies in milliseconds, providing near-instantaneous relief and automatic re-priming once the entrapment is cleared, minimizing system downtime.
• Multi-Voltage Power Flexibility: Supports 110VAC, 220VAC, and 3-phase power configurations, making the system adaptable to virtually any electrical setup in both home and commercial pool installations.
• Layered Safety Protections: Electrical models feature a timed restart delay and audible alarm that notify operators and prevent premature pump reactivation following an entrapment incident, adding critical safeguards to pool operation.

Specifications

• Brand: Vacless
• Part Number: SVRS10ADJ

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