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Industrial · Warehouses · Cold Storage

H₂S corrodes metal.
Methane accumulates.
The P-trap is a vector.

Industrial plants and warehouses have large floor drains and central trenches. Sulfur hydrogen from the biofilm corrodes reinforcement bars, installations, and electronics. Methane and other gases accumulate in poorly ventilated spaces—an explosive hazard. Green Drain™ is a safety measure, not a luxury.

−40 °C / +100 °CChemically resistantEU 2014/34 ATEX consciouslyEN 1253
-40 °C
Refrigerators
+100 °C
Hot processes
5 years
Life
0
Maintenance
Problem & solution

Industrial P-traps are the worst maintained.

In the large plant, everyone watches their own job—no one looks at the floor drains. Biofilm grows, H₂S corrodes metal, and gases accumulate.

Without Green Drain™

  • H₂S corrodes rebar, sewer pipes, and ventilation ducts.
  • Methane and CH₄ in drain biofilm — accumulation in low-ventilated spaces
  • Refrigerators: The P-trap freezes and cracks — water leaks out, a smell appears.
  • Distribution Centres (FMCG): Flies and pests in biofilm — a HACCP risk for food logistics
  • Labor Inspectorate calls for hazard control measures for workers

With Green Drain™

  • The temperature range covers cold storage and hot process zones.
  • Resistant to 5% NaOH, 3% HNO₃, peracetic acid, quaternary amines
  • No water — no risk of freezing in the cooler
  • H₂S and methane remain in the sewer system — worker safety
  • ATEX conscious design — the seal does not act as a source of sparking.
Industrial regulatory framework

Security is Legally required.

EU Directive 2014/34 (ATEX) regulates the protection of equipment for explosive atmospheres. The Labor Inspectorate oversees hazard control measures for workers in industry. For food logistics, BRC and IFS audits require environmental monitoring as standard.

EU 2014/34
ATEX Directive — explosive atmospheres
Labor Inspectorate
Monitoring of hazard control measures
BRC / IFS
For food logistics — environmental monitoring
−40 to +100 °C
Seal temperature range
EN 1253
EU standard for P-traps
EU 528/2012
BPR — pressure to reduce the use of biocides
Data Sources and Regulatory Framework (2024–2025 data)

Statistical data were taken from official sources: State Statistical Office (data.dzs.hr) Croatian Institute of Public Health (hzjz.hr), Ministry of Labor, Pension System, Family and Social Policy (mrosp.gov.hr), Agency for Science and Higher Education (azvo.hr), Ministry of Tourism and Sports (mint.gov.hr). Regulatory framework: EUR-Lex for EU directives and regulations — EU 2017/745 (MDR), EU 178/2002 (food safety), EU 1935/2004 and EU 10/2011 (food contact materials), EU 528/2012 (BPR), EU 2014/34 (ATEX). Standards: EN 1253-1 (floor P-traps, water seal ≥50 mm), EN 1253 Parts 6/7/8 (mechanical seal failures, 2023), HACCP Internacional RG-04, ASSE 1072-2020, NSF/ANSI 2. Tourism data taken from the DZS publication for H1 2025, healthcare data from the HZJZ report 2024, data for education from DZS publications for the 2023/2024 and 2024/2025 school years, data for nursing homes from the MROSP report, and announcements of EU-funded construction in 2025. Revision date: May 2026.

Implementation

The entire plant in maintenance cycles

The industry has scheduled shutdown periods. Our technicians enter during that window, install, and then exit.

01

Audit

Plant mapping — process, cold storage, shipping, sanitation.

02

Specification

The QHSE department is taking over the documentation for environmental compliance.

03

Pilot

One line or chamber — 30 days, H₂S measurement at strategic points.

04

Roll-out

During the planned shutdown — the entire plant in 1–3 days.

Model Recommendation

Recommendation per type of zone.

Industrial facilities in Croatia include manufacturing plants (Rimac, Cromos, Saponia), FMCG supplier logistics centres (Atlantic, Nestlé), cold storage facilities (Ledo), distribution hubs (Zagreb Logistics), chemical warehouses, and pharmaceuticals (Pliva, JGL). A typical facility has 4-6 different sizes throughout the building.

Green Drain™ Recommended for your industry.

  • Standard production floor (packing, assembly lines)GD 3.
  • Refrigerators and shock freezersGD 3 or GD 4Resistance to thermal shock.
  • Central grooves between lines (gully channels)GD 5 or GD 6.
  • Chemical storage facilities, ATEX zones, staff sanitationGD 3 or GD 4.
💬 Not sure of the exact size? Send us a photo of your sink drain — our technical team will respond with a written recommendation within the same business day, free of charge.
Check out Green Drain™ → Request a quote
GD 2
DN50 · staff sanitation
GD 3
DN80 · standard production
GD 3-3.5
DN80-90 · adaptive grooves
GD 4
DN100 · cold storage, main line
GD 5
DN125 · central groove
GD 6
DN150 · large gully channel
Complete solution

Three products.
One protection portfolio.

Green Drain™ doesn't work alone — for maximum drain control it's combined with GD Uri-Tabs™ (urinals) and GreenSwirl™ (cleaning).

Ready for Free audit?

We come to the site, map the drains, and provide a written recommendation—no cost, no obligation.