Overview

Pipe cleaning is a part of the daily operations of many sea and land facilities. The operator needs a reliable method to confirm whether the pig has left the pig launcher or arrived at the receiving end. The LT 902 series pipeline pig detector is based on our patented acoustic intelligent sensor technology platform, with a compact structure and easy to use. The speed and simplicity of its installation principle are unmatched by other ball indicators. In addition, it can accurately and reliably detect all types of cleaning devices without the need for any inserts.

Features

l Optimizes production efficiency

l Real time measurement

l Non-intrusive, easy to install

l Refit/install without shutdown

l Support local or remote indication

Principle

The LT 902 Series Pipeline Pig Detector utilizes passive acoustic technology to sense the pig passing through the pipeline and is equipped with a frequency locked digital signal processor (LPDSP). When the pig passes the positioning point of the detector, the instrument will detect and analyze the signal level changes at multiple frequencies. The indication of the pig passing can be displayed by the local light on the instrument, or by the signal output to the control system or indicator panel. The signal output is either "Pig Pass" or raw ball pass data used for further analysis. By using a computer equipped with Lightwaves's proprietary software or by inputting data into the main control system, users can obtain graphical displays of the signals received from the pig detector. The output is 4~20mA analog or RS485 digital signal.

Diagram of Pig and Sensor Positions

Technical Parameters

Applications

l Oil/gas transportation pipeline

l Chemical and process industry pipelines

l Maintenance of urban pipe networks

l Gas storage injection and production pipeline       

l Pipeline hydro-static test

l Pipeline drying operation

l Leakage detection and location assistance

l Maintenance of industrial pipeline