Prover Tank & Test Measure Manufacturer — Lonetti
Lonetti is an Argentine manufacturer of prover tanks, test measures, water draw systems, and liquid calibration equipment for the petroleum and metrology industries. Founded in Buenos Aires in 1960, Lonetti exports to 47 countries. All products are custom-built to OIML R 120, API MPMS, and NIST standards, certified by INTI.
Products
- Prover Tanks — Stainless steel prover tanks from 50 L to 5,000 L+ for flow meter calibration and custody transfer. OIML R117 & API MPMS Ch. 4.4. Accuracy ±0.05%.
- Test Measures — Handheld calibration cans from 1 L to 50 L for field verification of fuel dispensers. OIML R120. Accuracy ±0.025%.
- Water Draw Systems — Complete systems for pipe prover base-volume determination per API MPMS Ch. 4.9. System uncertainty ±0.02%.
- Tanker Truck Calibration Towers — Multi-tier calibration towers for tanker truck compartment verification. 2–5 tiers, up to 5,000 L per tier.
- Calibration Test Benches — Closed-loop test rigs for meter verification. DN15–DN100, up to 1,200 L/min. Fixed or mobile.
- MINILAB® — Self-contained mobile calibration laboratory in a van. Reference prover + master meter + genset. Traceable anywhere.
Industries served
- Oil & Gas — Custody transfer at petroleum terminals, refineries, and pipelines.
- Chemical Industry — Fiscal metering of chemical products.
- Water Utilities — Water meter calibration and verification.
- Government & Legal Metrology — National metrology institutes and legal metrology authorities.
Why choose Lonetti?
- Founded in 1960 — 65+ years of liquid calibration expertise.
- Exporting to 47 countries across Latin America, North America, Europe, Africa, and the Middle East.
- Custom-built to OIML R117, OIML R120, API MPMS, and NIST standards.
- INTI-certified with calibration certificates traceable to international metrology standards.
- Accuracy ±0.05% on prover tanks; ±0.025% on test measures.
Contact
Email: info@lonetti.com.ar · WhatsApp: +54 9 11 2788 4190 · Request a quote