Leister VACUUM PUMP Weld Seam Testing Vacuum Generator

The Leister VACUUM PUMP is a 340 W dedicated vacuum generator delivering up to 0.5 bar for use with the Leister VACUUM BOX and VACUUM BELL geomembrane weld seam testing devices – housed in a compact plastic transport case at 9.9 kg, with simple hose connection for immediate deployment on geomembrane installation sites, landfill construction, tunnel waterproofing, and civil engineering quality assurance programmes.

Dedicated Vacuum Generation for Geomembrane Weld Seam Quality Testing

The Leister VACUUM BOX and VACUUM BELL are non-destructive weld seam testing instruments that rely on a controlled vacuum source to create the differential pressure across the geomembrane seam that reveals leak paths, unfused zones, and through-thickness defects. The quality of the vacuum testing programme – its sensitivity, repeatability, and the consistency of results across hundreds of test positions throughout an inspection session – depends directly on the reliability and output stability of the vacuum source connected to the testing device. A vacuum source that cannot maintain the required pressure consistently across the full test duration, or that requires complex setup and parameter management on site, introduces variability into the test results and administrative burden into the inspection process that a systematic quality assurance programme cannot accommodate.

The Leister VACUUM PUMP is the purpose-designed vacuum source for the VACUUM BOX and VACUUM BELL testing system. Its 340 W motor generates and maintains up to 0.5 bar of vacuum – matched precisely to the maximum vacuum requirement of both testing devices – and its integrated plastic transport case means the unit arrives on site as a complete, ready-to-use package. Connect the hose to the VACUUM BOX or VACUUM BELL, switch on, and the testing programme begins. For quality control engineers, civil inspection teams, and geomembrane installation contractors across Oman and the GCC who deploy the Leister vacuum testing system on landfill containment, tunnel waterproofing, and civil geomembrane projects, the VACUUM PUMP provides the reliable, consistent vacuum generation that the testing instruments require to perform to their specified capability.

VACUUM PUMP Capabilities and Field Quality Assurance System Features

• 0.5 Bar Maximum Vacuum Matched to VACUUM BOX and VACUUM BELL Requirements: The VACUUM PUMP generates up to 0.5 bar of vacuum – precisely the maximum vacuum level specified for both the Leister VACUUM BOX and VACUUM BELL testing devices. This specification match ensures that the pump provides the full differential pressure capability of both testing instruments without overpressure risk or underpressure limitation, supporting valid, sensitive leak detection across the complete range of geomembrane materials and seam types that the testing programme covers.
• 340 W Motor for Consistent Vacuum Maintenance: The 340 W motor maintains stable vacuum output throughout the inspection session – sustaining the required vacuum level at the testing device across extended operating periods without the pressure drop or output inconsistency that underpowered vacuum sources introduce into testing programmes where the vacuum level at the test position must remain stable throughout the hold period for a valid pressure retention reading.
• Integrated Plastic Transport and Operating Case: The VACUUM PUMP is housed within a compact plastic case that serves as both a transport enclosure and the operational platform from which the pump is used on site – protecting the pump motor and fittings during transport to the site, and providing a stable, self-contained base from which the unit operates without requiring external mounting or support during the inspection session.
• Simple Hose Connection for Immediate Testing Deployment: The connection between the VACUUM PUMP and the VACUUM BOX or VACUUM BELL is made via a single hose connection – enabling the complete vacuum testing system to be set up and operational within minutes of arriving at the test area on site. The simplicity of the connection eliminates the setup complexity that would slow the pace of the inspection programme and create variability in the connection quality between test sessions.
• Compatible with Both Leister VACUUM BOX and VACUUM BELL: The VACUUM PUMP connects to and powers both the VACUUM BOX – for large-format long seam run coverage at 810 x 310 mm test area – and the VACUUM BELL – for square corner and detail seam testing at 320 x 320 mm footprint. A single pump unit serves both testing devices, enabling the complete Leister non-destructive vacuum testing system to be deployed with one pump supporting both instruments as required by the inspection programme coverage strategy for each project.
• Compact Site-Portable Dimensions at 9.9 kg: The 545 x 195 x 142 mm case dimensions and 9.9 kg operating weight allow the VACUUM PUMP to be carried and positioned at the start point of each inspection area on civil project sites – set down on the geomembrane surface or substrate adjacent to the seam network being tested, and connected via the pump hose to the VACUUM BOX or VACUUM BELL that the inspector carries and positions at each test position along the seam.
• 50/60 Hz Dual Frequency for Operational Flexibility: The 50/60 Hz frequency compatibility ensures the VACUUM PUMP operates correctly from both the 50 Hz mains supply and generator power sources that civil project sites across Oman and the GCC operate from – including the 60 Hz generator supply that some temporary site power installations provide – without frequency-related performance variation or the need for frequency conversion equipment.

Vacuum Testing System Applications for the Leister VACUUM PUMP in Civil and Environmental Engineering

• Landfill Containment Liner Weld Seam Vacuum Testing Programme: Provides the vacuum source for systematic VACUUM BOX and VACUUM BELL testing of primary and secondary geomembrane liner weld seams on landfill containment cell installations – enabling quality control teams to conduct complete seam network vacuum testing with consistent 0.5 bar vacuum throughout the inspection session, from the first test position on a new cell to the last seam section before formal liner acceptance.
• Tunnel Waterproofing Membrane Seam Leak Detection: Supplies the controlled vacuum for VACUUM BELL testing of overlap weld seams in tunnel waterproofing membrane systems – where consistent vacuum generation throughout the test session is operationally important because underground access limitations make returning to regenerate vacuum pressure between test positions impractical on active tunnel construction programmes.
• Reservoir and Civil Water Infrastructure Liner Inspection: Powers the VACUUM BOX and VACUUM BELL testing devices during systematic pre-acceptance weld seam quality verification on reservoir liner, canal waterproofing, and civil water retention geomembrane installations across Oman and the GCC – providing the reliable vacuum source that complete coverage of the installed seam network requires within the inspection programme time available before formal project handover.
• Two-Device Testing Programme with VACUUM BOX and VACUUM BELL: The VACUUM PUMP supports a comprehensive two-device vacuum testing strategy – where the VACUUM BOX covers the long straight seam runs between geomembrane panel overlaps and the VACUUM BELL addresses parapet corners, seam intersections, and detail transitions – with the pump providing consistent 0.5 bar vacuum to whichever device is in use at each stage of the seam inspection sequence.
• Mine Containment and Environmental Barrier Quality Assurance: Provides the vacuum generation component for non-destructive weld seam testing on mine tailings containment liner systems, heap leach pad liners, and civil environmental barrier geomembrane installations – where the VACUUM PUMP and connected testing devices together form the portable quality assurance system that quality engineers deploy for seam-by-seam leak verification across large liner areas before the installation is accepted and placed into environmental service.

Leister VACUUM PUMP – Available Through iBuild, Authorised Leister Distributor in Oman

iBuild is an authorised Leister distributor in the Sultanate of Oman, providing civil engineering contractors, geomembrane installation teams, and quality control engineers with direct access to the VACUUM PUMP alongside the compatible Leister VACUUM BOX and VACUUM BELL testing devices – supplying the complete Leister non-destructive geomembrane weld seam vacuum testing system as an integrated package. As a manufacturer-authorised technical partner, iBuild supports system configuration guidance – advising on the deployment strategy for the VACUUM PUMP with both testing devices across different geomembrane installation project types – and provides the lifecycle support that keeps the vacuum testing system performing to its specified capability throughout active quality assurance programmes.

For civil engineering contractors, geomembrane installation specialists, and quality assurance engineers across Oman and the GCC who deploy the Leister VACUUM BOX and VACUUM BELL for non-destructive weld seam leak testing on landfill, tunnel, reservoir, and civil geomembrane installations, iBuild is the authorised local source for the Leister VACUUM PUMP – the vacuum generation component that completes the testing system and ensures consistent 0.5 bar vacuum delivery at every test position throughout the quality inspection programme.