Dry run protection SK13

Product detailed description

Dry run protection devices are essential in pump systems where the risk of low or no water flow is present. This is particularly relevant in heating, irrigation, and water supply systems where pump failure due to dry operation can cause costly damage. The IBO SK13 dry run protection is commonly used in residential and commercial installations where surface or submersible pumps are employed. It ensures that the pump is disconnected when the system pressure drops below a set threshold, preventing overheating and mechanical failure. The device is suitable for integration into systems where the pump output pressure is at least 0.8 bar and where manual reset is acceptable for operation.

Its compact design and flexible mounting options make it suitable for both horizontal and vertical installation, allowing for easy integration into existing systems. The SK13 is particularly useful in applications where the pump may occasionally run dry due to low water levels or blockages in the system. It is compatible with a wide range of pump types, including self-priming and shaft-type submersible units, making it a versatile solution for various pump configurations.

Technical parameters

The G 1/4 connection size ensures compatibility with standard pump output ports. The factory-set pressure thresholds (0.7 bar for shutdown and 1.2 bar for restart) are critical for correct operation. These values determine the sensitivity of the protection system and must be considered when selecting the device for a specific application. The minimum required pump output pressure of 0.8 bar ensures that the device can function reliably without false triggering.

Installation and connection

Installation of the SK13 dry run protection involves connecting the device to the pump's output using the provided G 1/4 threaded port. The included plug and socket cables simplify electrical integration, allowing for a quick and secure connection. The device can be mounted in any orientation, either horizontally or vertically, depending on the available space and system layout. During installation, it is important to ensure that the pump output pressure meets the minimum requirement of 0.8 bar to avoid incorrect operation. Common mistakes include incorrect pressure settings or failure to secure the electrical connections properly, which can lead to system instability or device failure.

Compatibility and accessories

The SK13 is compatible with a wide range of pump types, including self-priming, surface, and submersible units. It is particularly suitable for shaft-type submersible pumps up to 1.5 kW. No additional accessories are required for standard installation, as the device is supplied with plug and socket cables for direct connection. For more complex systems, it may be used in conjunction with other control switches, but no specific related products are mentioned in the brief.

Technical background for designers

The SK13 operates by monitoring the pressure at the pump's output. If the pressure drops below the set threshold of 0.7 bar, the device disconnects the power supply to the pump to prevent damage. When the pressure rises above 1.2 bar, the device re-energises the pump. The device is manually reset using the provided reset button. The pressure thresholds can be adjusted using the provided adjustment screw, allowing for fine-tuning to match the specific requirements of the system. The device is constructed using durable materials suitable for long-term operation in industrial and commercial environments. Proper integration into the system requires careful consideration of the pump's output pressure and the system's hydraulic characteristics to ensure reliable operation.

Service and operation

Regular inspection of the device is recommended to ensure that the pressure settings remain accurate and that the electrical connections are secure. The device does not require scheduled service intervals, but it should be checked in the event of system malfunctions or repeated pump shutdowns. The manual reset function allows for quick recovery after a dry run event, but it also means that the system must be manually restarted after each shutdown. This is an important consideration for systems where automatic restart is required.

Frequently asked questions

Can the SK13 be used with submersible pumps?
Yes, the SK13 is suitable for use with submersible pumps, including shaft-type units up to 1.5 kW. It is also compatible with self-priming and surface pumps.

What is the minimum pump output pressure required for the SK13 to function correctly?
The pump must provide a minimum output pressure of 0.8 bar for the SK13 to operate reliably and avoid false triggering.

Can the pressure settings of the SK13 be adjusted?
Yes, the pressure thresholds can be adjusted using the provided adjustment screw. Turning the screw clockwise increases the set pressure, while turning it counterclockwise decreases it.

Is the SK13 suitable for vertical installation?
Yes, the SK13 can be installed in any orientation, including vertical, due to its flexible mounting design.