Shaft for drilled well 1600x1000

Product detailed description

Drilled well shafts are essential components in the installation of submersible pump systems for domestic and commercial water supply. These systems are typically found in rural and semi-rural areas where municipal water supply is not available. The shaft provides a secure and accessible housing for the pump, pressure tank, and associated plumbing and electrical components. It is installed below ground level to protect the equipment from environmental factors and to maintain a stable operating environment. The shaft is commonly used in domestic water supply systems, where it houses the pump, pressure tank, check valve, pressure switch, and filtration units. The design allows for easy access during installation and maintenance, while the polypropylene construction ensures long-term durability and resistance to corrosion.

When installing a drilled well shaft, it is important to consider the dimensions and layout of the components that will be housed inside. The shaft must accommodate the pressure tank, which is a critical component for maintaining consistent water pressure. The size of the tank should be selected based on the expected water demand and the pump's flow rate. The shaft also includes transition fittings for pipe and cable connections, which must be compatible with the system's specifications. The installation process involves positioning the shaft below ground level and ensuring that the access hatch is not subjected to regular foot or vehicle traffic. Proper sealing and protection of the electrical connections are essential to prevent water ingress and ensure safe operation.

Technical parameters

EAN	8585054503025
Dimensions H x W x D (cm)	160 x 100
Weight	48 kg
Code	PR_115683

The technical parameters of the shaft are crucial for determining its suitability for a specific installation. The dimensions of 160 cm in height and 100 cm in width provide sufficient space for the pressure tank and other components. The weight of 48 kg indicates a lightweight yet robust construction, which facilitates transportation and installation. The shaft is designed for underground use and is not equipped with a pump, valves, or other accessories, which must be sourced separately. The transition fittings for pipe and cable connections are standardised, allowing for compatibility with a range of system configurations.

Installation and connection

The installation of the drilled well shaft involves placing it below ground level to ensure that the equipment is protected from environmental exposure. The shaft is typically delivered with a plastic cover that must not be subjected to regular foot or vehicle traffic. In such cases, additional measures such as a removable concrete slab or fencing may be required to prevent access. The transition fittings for pipe and cable connections must be checked for compatibility with the system's specifications. The pipe transition is commonly 1 inch in diameter, while the cable transition is sized to accommodate the electrical supply. The bore transitions are available in standard diameters (DN 110, DN 125, DN 140, DN 160, DN 200) to accommodate the most common well sizes. Common installation mistakes include incorrect placement of the shaft, failure to secure the cover, and improper sealing of electrical connections.

Compatibility and accessories

The drilled well shaft is compatible with a range of submersible pumps and pressure tanks. It is not supplied with a pump, valves, or other accessories, which must be ordered separately. The system typically includes a submersible pump, pressure tank, pressure switch, check valve, connecting flexible hose, connecting valves, and water filters. These components can be selected based on the specific requirements of the installation. The shaft is also compatible with frequency converters for variable speed pump operation. The selection of components should be based on the expected water demand, pump flow rate, and system pressure requirements. The shaft is designed to accommodate the most common configurations of domestic water supply systems, including those with pressure tanks and frequency converters.

Technical background for designers

The drilled well shaft is constructed from polypropylene, a material known for its chemical and mechanical resistance, as well as its long service life. The self-supporting structure of the shaft eliminates the need for concrete reinforcement in most cases, except where the water table is low. The shaft is designed to be installed below ground level, providing a stable and protected environment for the pump and associated equipment. The internal layout of the shaft should be planned to accommodate the pressure tank and other components, ensuring that there is sufficient space for installation and maintenance. The material properties of polypropylene ensure that the shaft remains durable and resistant to environmental factors, including chemical exposure and mechanical stress. The integration of the shaft into the overall system depends on the size of the pressure tank and the layout of the components.

Service and operation

Regular maintenance of the drilled well shaft is essential to ensure the continued operation of the pump and associated equipment. The cover should be inspected for damage or wear, and any signs of water ingress should be addressed immediately. The electrical connections should be checked for integrity and insulation. The internal components, including the pressure tank and valves, should be inspected for signs of wear or corrosion. The shaft itself requires minimal maintenance due to its polypropylene construction, which is resistant to chemical and mechanical degradation. The service life of the shaft is influenced by the quality of the installation, the environmental conditions, and the maintenance practices followed by the operator.

Frequently asked questions

Can the shaft be used with a frequency converter?
Yes, the shaft is compatible with frequency converters for variable speed pump operation. The converter should be installed within the shaft along with the other components.

Is the shaft suitable for all types of submersible pumps?
Yes, the shaft is designed to accommodate a range of submersible pumps. The selection of the pump should be based on the specific requirements of the installation.

Can the shaft be installed above ground?
No, the shaft is intended for underground installation to protect the equipment from environmental exposure. Above-ground installation is not recommended.

Is the cover of the shaft load-bearing?
No, the plastic cover is not suitable for regular foot or vehicle traffic. Additional measures such as a removable concrete slab or fencing should be used to prevent access.