U3Ks special - pump for alkaline liquids, condensate, brine, etc. (Qmax=6.5 m3/h, Hmax=7 m) JP50005

Application in Difficult Conditions and Aggressive Media

The U3Ks special pump is a device designed for situations where standard water pumps would quickly succumb to corrosion. Thanks to an optimized selection of materials, this model handles pumping alkaline liquids, condensate from gas boilers, and brines with salt content up to 15%. This is a key feature for installers servicing drainage systems in agriculture (e.g., draining silage or whey) and in industry, where safe removal of liquid fertilizers or saline water is required. The device is suitable for both stationary installation and as a portable unit for emergency dewatering of flooded cellars, septic tanks, or garden pools.

Construction and Practical Mounting Solutions

The special version stands out not only for its chemical resistance but also for functional elements that facilitate work. The pump is equipped with an ergonomic handle, significantly easing its transport and relocation of the work station on construction sites or farms. A key component is the installed float switch (swimmer switch), which automates the pumping process – the device starts and stops depending on the liquid level, eliminating the need for constant operator supervision. The power cable length is 4 meters, providing sufficient maneuvering freedom when connecting to a 230 V socket without the need for additional extension cords.

For installers, the possibility of short-term medium heating is also important. The standard operating temperature is 35 °C; however, the device can operate for 10 minutes with liquids up to 60 °C. Such flexibility allows for effective emptying of tanks after technological processes or dewatering condensate from modern condensing boilers without the risk of motor overheating. Additionally, the pump features a closable flushing bore (verschließbare Spülbohrung), facilitating cleaning of the suction channel from sediments or sticky substances after work is completed.

Scope of Application and Operational Parameters

The device is characterized by a maximum flow rate of 6.5 m³/h at a maximum head reaching 7 meters water column. Such parameters enable efficient emptying of even large tanks in a short time or lifting water to higher levels in gravity systems. Thanks to resistance to aggressive media, the pump finds wide application in condensate drainage systems from heating equipment and in agricultural farms for handling liquid fertilizers and by-products such as silage or whey. It is also suitable for industrial installations requiring chemical resistance, for emergency removal of floodwater from above-ground and underground facilities, and from empty tanks after washing or disinfection processes.

It is worth remembering that when working with liquids of high viscosity or high solid particle content, the flow diameter and the potential need for inlet filtration should be checked to avoid impeller damage. The U3Ks special model constitutes a solid link in drainage systems where the environment's chemistry precludes the use of standard steel or cast iron pumps. The device operates stably with medium temperatures up to 35 °C (short-term up to 60 °C) and is powered by 230 V with a cable length of 4 meters.