Fault diagnosis and repair
Investigation of low flow, loss of pressure, leaks, vibration, noise, tripping and failure to start or prime.
Diagnosis, repair, planned servicing, installation and replacement of centrifugal pumps used for water transfer, pressure, irrigation and commercial processes.
A centrifugal pump fault can be caused by the pump itself, but it can also originate in the motor, controls, valves, suction conditions or connected pipework.
AFS supports end-suction, close-coupled, multistage and water-transfer centrifugal pumps used in commercial buildings, farms, irrigation systems, plant rooms and industrial applications.
Our engineers assess the pump duty, flow, pressure, electrical supply, controls, valves, seals, bearings and operating conditions before recommending repair, servicing or replacement.
Where a replacement is required, the new pump should be selected against the actual system duty rather than simply matching the old model number.
For specialist pump work, our sister company Alton Pumps provides centrifugal pumps.
Investigation of low flow, loss of pressure, leaks, vibration, noise, tripping and failure to start or prime.
Condition checks, performance assessment and maintenance recommendations to reduce unexpected failures.
Pump selection, installation, commissioning and system checks for new or replacement equipment.
We confirm the application, required flow and head, operating history and current symptoms.
The pump, motor, controls, suction, discharge, valves and pipework are checked together.
We explain whether repair, servicing, alteration or replacement is the most practical route.
The correct pump depends on the required duty and the conditions in which it operates.
Centrifugal pumps are commonly used for clean-water transfer, pressure boosting, irrigation, circulation, process water, drainage and other high-flow applications. Installations may use end-suction, close-coupled, inline or multistage pumps.
A suitable assessment considers flow, total head, suction conditions, fluid characteristics, operating hours, controls, redundancy and the available electrical supply.
Poor performance does not always mean the complete pump must be replaced.
Loss of performance may be caused by a blocked suction, air ingress, an incorrect valve position, impeller wear, seal failure, damaged bearings, motor problems, control faults or unsuitable operating conditions.
Checking the wider system prevents a replacement pump being installed into an unresolved pipework or control problem.
The best option depends on condition, age, availability of parts and the required duty.
Repair may be appropriate where the pump casing, motor and hydraulic components remain serviceable. Replacement is often more sensible where the equipment is obsolete, badly worn, repeatedly failing or incorrectly sized.
After installation or repair, the system should be commissioned and checked against the intended operating conditions.
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We cover about 50 miles around Alton. Type the first part of your postcode and we will tell you the nearest town we cover, how far it is from Alton and whether it is inside our area.
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Send the details through and a member of the AFS team will come back to you.
Yes. We investigate mechanical, hydraulic, electrical and control-related faults before advising whether repair is technically and commercially sensible.
Typical issues include low flow, poor pressure, cavitation, vibration, seal leakage, bearing noise, motor faults, loss of prime and repeated tripping.
Yes. AFS supports centrifugal pumps in commercial buildings, plant rooms, farms, irrigation systems and industrial water-transfer applications.
Yes. The replacement should be selected using the required flow, head, fluid, operating conditions, pipework and electrical supply.
We mainly support sites across Hampshire, Surrey, West Sussex, Berkshire and surrounding parts of Southern England.
Send an enquiry or call the AFS team. We’ll confirm the practical next step and whether a site visit is needed.