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A complete range of drainage pumps for efficient installations

Why Calpeda drainage pumps are an excellent choice

One of the key strengths of Calpeda drainage pumps is the vast range of models available, capable of meeting every need in terms of flow rate (Q) and head (H). This variety allows users to select the model that best suits the specific working conditions of the system. This ensures that the pump operates within its maximum efficiency range, delivering better performance and lower energy consumption. The wide selection also extends to construction materials. Cast iron, stainless steel, and polymers are used and combined with the goal of achieving the best balance between robustness and lightness. The variety of materials applies not only to the pump body but also to its components, starting with the impellers. The choice of impeller type is crucial as it influences hydraulic efficiency, solid-handling capacity, abrasion resistance, and clogging prevention.

Calpeda drainage pumps are available with different hydraulic configurations:

• Centrifugal impeller, semi-open, or two-channel for optimal efficiency
• Vortex or grinder when handling fluids containing suspended solids or fibrous elements

The specific application of the pump should guide the selection of the most suitable hydraulic type.

Ease of use and installation

Great attention has been given to the ease of transport and installation. Handling is a crucial factor for this type of pump, which must be quickly operational, often in emergency situations. The lightweight, compact design, and ergonomic handles ensure easy movement, even by a single operator, providing excellent usability. Versatility is a key design principle, and various installation options are available to suit different applications:

• The discharge port can be horizontal or vertical, allowing for easy positioning in different situations, including confined spaces such as narrow pits.
• The connection to the discharge pipe can be threaded or flanged, depending on whether the installation is mobile or fixed— the latter being particularly suitable for high-flow or high-pressure applications.

The float switch version enhances adaptability to different operational contexts by optimising pump start and stop functions.

Features that make the difference

A significant design feature is the double mechanical seal, particularly useful in demanding and continuous applications, where seal wear could lead to liquid infiltration into the motor, compromising the pump’s operation. This dual protection not only extends the pump’s lifespan, but also minimises the need for maintenance. For particularly demanding industrial applications, silicon carbide seals are available. These seals offer exceptional resistance to wear, mechanical stress, high temperatures, and chemical agents, ensuring superior durability and reliability.

Pumping solutions for every sector

Domestic Drainage

In residential settings, practicality, convenience and reliability are the key factors to consider, whether for emergency drainage or continuous use. Consider scenarios where a flooded room results from plumbing failures or inclement weather, emphasising the critical need for immediate accessibility to a ready-to-use pump. Another common need is the easy and safe emptying of a swimming pool for maintenance activities. Drainage pumps also play a crucial role in garden and irrigation systems, helping draw water from ponds, streams, or rainwater collection pits. A growing trend in households is the sustainable practice of greywater recovery, where water from showers, sinks, and washing machines is collected for non-potable reuse. In all these cases, drainage pumps ensure water collection, transport, and treatment. For all these situations, the GM10 and GX ZERO series are the ideal pumping solutions. With compact motor sizes, excellent maneuverability, and a balance between lightness and abrasion resistance, these polymer and stainless steel pumps are perfect for domestic applications.

Civil Drainage

When the flow rates to be handled are higher, e.g. when emptying hospitals and airports or handling storm water, the robustness of the GQ series drainage pumps is needed. These cast iron and stainless steel pumps are capable of handling water with suspended solids up to 65 mm.

Construction site drainage

The construction sector presents particularly challenging conditions. The removal of water from excavations, flooded foundations, and underpasses requires robust technical solutions that can handle water mixed with sand, mud, and debris. Alongside the GQ series, the GM series models are available. These cast iron pumps ensure high flow rates, powerful performance, and can handle solids up to 50 mm.

Industrial Drainage

In the industrial sector, drainage pumps play a vital role in removing process water, while also allowing it to be collected for treatment and reuse to minimise environmental impact. In addition to the GM series, Calpeda has developed the GX full stainless steel series. Thanks to different hydraulic configurations, these models are suitable for both clean and dirty water containing high solid content and long fibers. Their main strength lies in the stainless steel performance, which guarantees long service life, maximum corrosion resistance, and hygiene. These features make the GX full stainless steel pumps ideal for specific applications such as the food industry. With a wide range of models, materials, and configurations, every sector—from domestic to industrial—can find the most suitable drainage pump for its needs.