Verifying the integrity of every meter of seam in installed geomembrane to certify the watertightness of a dam, landfill, or leaching cell under environmental standards requires a needle pressure gauge with a metal body, clear dial reading, and robust construction for continuous field use. This needle pressure gauge —also called an air pressure tester, weld channel tester, or air pressure gauge tester— is manufactured by KORWINS with a metal body, stainless steel needle, and ergonomic wooden handle, designed for geomembrane installation contractors, hydraulic works supervisors, and environmental quality control technicians.
Key benefits
- Industrial-grade metal body: robust construction sized for continuous field use, ambient humidity, quarry dust, and rough handling in sanitary landfills and mining, without losing calibration accuracy.
- Precision stainless steel insertion needle: tip sized to penetrate cleanly into the air channel of the dual weld without compromising the material structure, a critical condition for non-destructive seam testing.
- Clear, accurate dial reading: visible scale that allows pressure monitoring throughout the test cycle and immediate detection of any pressure drop indicative of a leak, an auditable condition for project certification.
- Ergonomic wooden handle: comfortable, firm grip that facilitates the manual force needed for needle insertion and handling during continuous testing cycles on long seams.
- Connection hose with quick coupling: high visibility and direct connection to portable air pumps or manual compressors, a condition for autonomous field operation without complex pneumatic equipment.
Typical applications and uses
- Quality control during geomembrane installation: verifying watertightness meter by meter on dual-seam welds.
- Environmental auditing of sanitary landfills and leaching cells under ISO 14001 or equivalent certification.
- Verification of waterproofing in dams, reservoirs, artificial lakes, and large-format agricultural water storage.
- Inspection of mining projects with leaching cells and chemical containment using structural HDPE or LLDPE.
Quality and durability
An economical field pressure gauge fails on two fronts: the initial calibration loses reliability after a few months of use (which produces false readings that invalidate later audits) and the insertion needle is made of low-grade steel that bends or rusts (which ruins the test on the first intensive use). KORWINS works with a calibrated metal body and a stainless steel needle, which separates a quality-control tester certifiable for auditing from a basic pressure gauge that certifies nothing.
Equivalences
Equivalent to these other-brand references:
- Standard
- DEMTECH Manometer Air Pressure Tester Kit AT-100KIT/ALesite LST-T001 Air Pressure TesterLeister Leak Tester 0–6 bar, straight needle
Brands and references mentioned belong to their respective owners; cited only for comparison and compatibility.
What exactly is this pressure gauge for, and how does it relate to welding?
Is it compatible with any geomembrane thickness?
What maintenance does the needle need to keep precision?
Still have questions?
Ask us and we will gladly help you with whatever you need.
| General | |
|---|---|
| Pump type | Manual with support base |
| Indicator type | Analog pressure gauges |
| Strength and performance | |
| Test time | 5 minutes |
| Irrigation and flow | |
| Working pressure | 0.2 - 0.3 MPa (29.0 - 43.5 psi) |
| Machine: Width | 18.0 cm (7.09 in) |
|---|---|
| Machine: Height | 90.0 cm (35.43 in) |
| Machine: Depth | 10.0 cm (3.94 in) |
| Machine: Weight | 3.0 kg |
Official KORWINS warranty
What's covered
Confirmed defect: replacement or refund of the amount paid.
What's not covered
Payment & Security
