Evapco · Johannesburg
Controlled Atmosphere Installation for Evapco Systems in Mining & Bulk Air Cooling | Heriotdale
CA rooms with nitrogen generation, CO₂ scrubbing and gas-tight sealing. We support Evapco evaporative condensers and cooling towers running R717, R744 in mining & bulk air cooling across Heriotdale and Heriotdale Industrial.
Technical highlights
SAQCC Gas certified controlled atmosphere installation
SANS 10147 pressure and gas compliance, genuine Evapco OEM parts and rapid dispatch to Heriotdale.
- SAQCC Gas registered technicians handling R717, R744
- SANS 10147 pressure vessel and installation compliance
- Genuine Evapco OEM parts — Evapco spray nozzles, drift eliminators, fan drives and water treatment kits
- 8–14 weeks to Heriotdale, Johannesburg
Common maintenance vectors
What we find on these systems
- Room gas-tightness
- Scrubber capacity
- Gas analyser calibration
- Scale fouling on coil surfaces in hard-water regions
- Fan bearing failure from continuous high-ambient duty
- Blocked bleed lines raising conductivity and corrosion
Dynamic specifications
Mining & Bulk Air Cooling duty on Evapco plant
Bulk air coolers, ice plants and surface chill dams
| Typical system duty | +2 °C to +12 °C chilled water (1–3% O₂, 0–5% CO₂ at −0.5 °C to +2 °C) |
|---|---|
| Design humidity | 90–100% RH |
| Recommended gas / pressure class | R717, R744 — handled by SAQCC Gas registered technicians |
| Equipment platform | Evapco Evaporative condensers and cooling towers — Closed-circuit coolers, evaporative condensers, industrial ammonia packages |
| Compliance frameworks | MHSA, SANS 10147, OHS Act, SAQCC Gas registration |
| OEM parts held | Evapco spray nozzles, drift eliminators, fan drives and water treatment kits |
| Service deliverable | Pressure decay test and gas analysis record |
| Response / lead time | 8–14 weeks |
| Location hub | Serving Heriotdale Industrial and surrounds off the M2 / N3 |
Local context
Working in Heriotdale
We service Heriotdale Industrial and the surrounding blocks of Heriotdale, Johannesburg, with access off the M2 and N3. Highveld summers push afternoon ambients past 32 °C with heavy thunderstorm humidity, so condensers here are sized with a generous approach and cleaned before every summer.
Bulk air coolers and ice plants for deep-level ventilation Underground heat stress limits shift productivity
Compliance
Documentation you receive
- MHSA
- SANS 10147
- OHS Act
- SAQCC Gas registration
- Pressure decay test and gas analysis record
FAQ
Evapco controlled atmosphere installation in Heriotdale
How fast can a technician service Evapco equipment at a mining & bulk air cooling site in Heriotdale?
Heriotdale sits on the M2 and N3, so our Johannesburg dispatch reaches most Heriotdale Industrial sites inside a standard callout window. Emergency controlled atmosphere installation runs 24/7 because underground heat stress limits shift productivity.
Do you stock OEM components for Evapco systems?
Yes — Evapco spray nozzles, drift eliminators, fan drives and water treatment kits. Evapco (USA) equipment on R717/R744 charges is supported with the fast-moving spares held at our Pretoria North workshop and non-stock items brought in on OEM order.
What pressure testing and gas compliance certificates are provided?
Every controlled atmosphere installation job closes with a pressure test record and gas handling Certificate of Conformance issued under SANS 10147 by a SAQCC Gas registered technician, plus the MHSA documentation your auditors expect.
What operating envelope do you commission this equipment to?
Mining & Bulk Air Cooling run at +2 °C to +12 °C chilled water at 90–100% RH, with controlled atmosphere installation performed against 1–3% O₂, 0–5% CO₂ at −0.5 °C to +2 °C. Underground heat stress limits shift productivity
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Get started
Schedule an on-site diagnostic in Heriotdale
Tell us what you need cooled and where. We respond with a scoped quote, and for emergencies we dispatch straight away.
- Phone / WhatsApp
- 069 268 0988
- info@reyds.co.za
- Workshop
- 386 Eeufees Street, Pretoria North, Gauteng
- Hours
- Mon–Fri 07:00–17:00, Sat 08:00–13:00. 24/7 emergency breakdown line.