HEPG Polyalkylene Glycol Hydraulic Fluid
HEPG polyalkylene glycol fluid for hydraulic systems in seawater environments and extreme temperatures
HEPG (Hydraulic Environmental Polyalkylene Glycol) hydraulic fluid for demanding applications in environmentally sensitive extreme temperature environments. Polyalkylene glycol (PAG) provides an exceptional viscosity index (VI >200) — stable behaviour from −40°C to +95°C without significant viscosity changes. Completely miscible with water — in case of leakage in an aquatic environment it dilutes without forming a surface oil film. Fire resistance superior to mineral oils. Recommended for offshore platforms, machinery in coastlines and estuaries, and hydraulic systems of offshore wind turbines. Caution: not compatible with alkyd paints or NBR seals — verify system compatibility before fluid change.
Specifications
EAL documentation available
Characteristics
- VI >200 — stable viscosity behaviour from -40°C to +95°C
- Water-miscible — no surface film in case of marine leakage
- Fire resistance superior to mineral oil
- Compatible with FKM and PTFE seals (incompatible with NBR and alkyd)
- Biodegradability ≥60% (OECD 301B)
Typical applications
- Hydraulic systems of offshore oil and gas platforms
- Dredging and maritime construction machinery
- Offshore wind turbines — pitch and yaw
- Port cranes and maritime cargo equipment
- Marine aquaculture machinery
Sectors
Key advantages
- Zero surface film on water — minimum visual and ecological impact
- Exceptional thermal performance in extreme ranges
- Fire resistance — greater safety in offshore
- Complies with US EPA VGP (vessels in US waters)
- Preferred specification in environmental offshore tenders
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