Negative Pressure Leak Tester (Vacuum Test)

Negative Pressure Leak Tester: Joint Integrity Under Vacuum

In water and wastewater networks, pipes are not only subjected to internal pressure; they often face external pressure from groundwater or internal vacuum conditions. The Negative Pressure Leak Tester is engineered to simulate these specific scenarios. It verifies that mechanical joints and fittings will not allow fluids to infiltrate the system when the internal pressure drops below atmospheric pressure.

Advanced Vacuum Chamber Design

Reliability in vacuum testing requires a robust environment. Our device features:

• Stainless Steel Chamber: The testing tank is constructed entirely from corrosion-resistant stainless steel, ensuring durability even when testing with water over long periods.
• Digital Precision: Equipped with a vacuum pump and pressure sensors with a resolution of 0.01 bar, allowing operators to monitor minute pressure changes that indicate a leak.
• Water Management System: Includes an integrated water supply and storage tank to recycle water, reducing operational costs for the laboratory.

Versatile Testing Applications

This machine is essential for various sectors:

• Water & Wastewater: Ensuring sewage does not leak out and groundwater does not leak into potable water lines.
• Irrigation Systems: Testing the seal of mechanical fittings and valves.
• Industrial Piping: Verifying the safety of transfer lines in petrochemical plants.

Complete Pipe Testing Solution

While this device tests for negative pressure (vacuum), certifying a pipe system also requires testing for positive internal pressure (bursting). We recommend complementing this machine with our Hydrostatic Pressure Tester. Together, these two machines cover the full spectrum of pressure testing requirements.

International Standards Compliance

This equipment is calibrated to meet the rigorous requirements of the following standards:

• ISO 3459: Plastic piping systems — Mechanical joints between polyethylene (PE) pressure pipes and fittings — Test method for leak tightness under negative pressure.
• ISO 13056: Plastics piping systems — Pressure systems for hot and cold water — Test method for leaktightness under vacuum.
• INSO 12439.

Consultation and Purchase

To configure the chamber size to your specific pipe diameters or to request a price, please click the “Contact for Purchase” button to reach our sales team via WhatsApp. You can also visit our Contact Us page for more details.