984-05
Measurement lock for Hawle underground hydrants

The Hawle underground hydrant measurement lock has been developed for the later introduction of a sensor into an already existing water pipeline system. In the process, the sensor is placed in the pipeline system through an existing Hawle freeflow underground hydrant by means of the measurement lock. If no underground hydrant is available for installing a measurement lock, the Hawle freeflow underground hydrant can be integrated later into the pipeline under pressure.
The measurement lock can be mounted and maintained easily and quickly from the road surface. Thus, quick
access is possible to the measurement lock and the sensor, e.g. for maintenance and cleaning work. The Hawle measurement lock has been designed such that it can be easily integrated into already existing Hawle freeflow underground hydrants. The measurement lock can be installed either as a permanent or as a temporary short-term measuring point.
The system is frost-proof and protected against external environmental influences. The supply line need not be shut off for the installation of the measurement lock,
since an integration into the pipeline system under
pressure (max. 16 bar) is possible any time. The sensors provided by the customer are pushed/inserted into the Hawle freeflow underground hydrant through a specially developed sensor tube using a setting tool.

Sensors up to a diameter of 60mm can be introduced via the Hawle freeflow underground hydrants. The sensors must be provided by the customer. By means of the appropriate sensors, parameters such as turbidity, flow direction, pressure, conductivity, temperature, noise, leakage, etc., can be measured. In the sensor tube, the entire electronic system as well as the required battery can be installed as needed.

Moreover, it is possible to integrate the data logger and the transmission unit below the surface box. In this case, a big surface box should be chosen.

Components Measurement lock :

1 Pressure flange
2 Sealing tube
3 Sensor tube
4 Sensor
5 Data logger