AquaCheck

The Gastech AquaCheck is a portable clamp-on ultrasonic transit-time flow measurement system for water distribution network management, housed in a rugged yellow watertight carry case. The system consists of a base unit with LCD display, operator interface panel, and an integrated data printer, plus two clamp-on ultrasonic transducer assemblies — each mounted in a rigid blue padded clamp body with flexible coiled connection cables and quick-release couplings. The clamp-on transducer design attaches externally to the pipe outer wall without any pipe cutting, drilling, or process interruption — the acoustic ultrasonic signal passes through the pipe wall and fluid to the opposite transducer, with the transit-time difference between the upstream and downstream signals used to calculate fluid velocity and volumetric flow rate. The system is compatible with metallic pipes including steel, grey cast iron, and ductile cast iron as well as plastic pipes including PE and PVC across a range of diameters.

The transit-time measurement principle requires no contact with the fluid — the transducers clamp directly onto the cleaned outer pipe surface using the rigid clamp assembly, with acoustic coupling gel applied between the transducer face and the pipe wall to ensure complete acoustic contact. The operator enters pipe material, wall thickness, and outer diameter into the base unit before measurement, and the electronics calculate calibrated flow velocity and volumetric flow rate from the transit-time data. The integrated printer outputs measurement records directly on-site, providing a dated and timed hardcopy of flow readings for network audit and documentation purposes. The fully portable battery-powered carry case format allows the instrument to be deployed at any network access point without mains power connection.

The Gastech AquaCheck is deployed by water network operators, utility maintenance teams, and network balance engineers for non-invasive flow measurement at any accessible pipe section — including distribution main flow verification, district metering area (DMA) boundary flow measurement, pump output verification, pressure zone balance assessment, and night flow measurement during leakage assessment surveys. The non-invasive installation makes it practical for temporary deployment at any survey point without civil or mechanical work.

Leader Infra supplies this portable clamp-on ultrasonic transit-time flow measurement system for water network operators and leakage management teams — delivering non-invasive, pipe-penetration-free flow measurement with integrated on-site data printing across all standard metallic and plastic water distribution pipe materials.

FAQ — Why does the AquaCheck use the transit-time principle rather than Doppler ultrasonic measurement for water network flow surveys? The transit-time method is the correct choice for clean water distribution networks because it measures the direct time-of-flight difference between upstream and downstream acoustic signals — it does not require suspended particles or gas bubbles in the fluid to generate a return signal, as Doppler methods do. Potable water distribution pipelines carry clean, particle-free water, making transit-time the accurate and reliable choice, while Doppler methods would produce unstable or inaccurate readings in the same conditions.