Description

Introduction to Gauging Pig

The Gauging Pig consists of overlapping flexible blades. When placed in a pipeline, it moves forward quickly under water pressure. As liquid pushes the cleaning device forward, a pressure difference forms between its front and rear. Water flows through gaps between spring and rubber plates, causing vibrations and high-frequency oscillations. Sword-shaped spaces between outer blades create a high-pressure water-cutting effect.

Strong vibrations and high-pressure water remove dirt, forming large bubbles or cavities. These bubbles explode, generating strong sound waves, vibrations, and instant high temperatures. The explosion applies pressure and dissolves dirt, achieving thorough cleaning and descaling. Cavitation occurs as bubbles compress and collapse, releasing powerful micro-jets. Countless micro-jets combine into shock waves, completely crushing deposits.

The Cavitation Jet Gauging Pig operates at a speed of 0.4–1.2 m/s, with a pressure difference of 0.6–1.2 MPa (6–12 kgf/cm²) between the front and rear. It transports liquid along the pipeline while discharging 25–40% of the conveyed liquid.

The cleaning speed depends on factors such as water consumption, the hardness of the deposits, the pressure difference before and after the cleaning device, the inclination of the pipeline, and the distance from the discharge outlet.

Key Features of Gauging Pig

• Cleans pipelines up to 1,000 km long in one operation.
• Navigates 90° bends and complex pipe shapes (U-shaped, spiral, coil).
• Fast cleaning speed of up to 10 km/h.
• No damage to the pipe’s inner surface.
• Removes dirt buildup up to 60% of the pipe’s diameter.
• Suitable for DN40–DN1000 mm pipelines.
• Eco-friendly, using a physical cleaning method with no pollution.

Cavitation Jet Cleaning Technology

Cavitation Jet cleaning technology utilizes the principle of the “cavitation effect” in fluid mechanics. When a cleaning device is placed inside the pipeline, it is rapidly propelled forward by a combination of flowing water and compressed air.

As the device moves, the metal blades on it generate high-frequency, intense vibrations. Consequently, the device becomes surrounded by rapidly rotating vortices, creating a continuously moving low-pressure zone. Within this region, the water remains in a vaporized state, leading to the formation of tiny vapor bubbles.

These bubbles are then quickly compressed until they collapse, triggering the instant release of powerful micro-jets. As these countless micro-jets combine, they generate shock waves, which effectively break down and remove deposits from the pipeline surface.

Cavitation Cleaning (Gauging Pig)