Description
Sinopec Ester-based Fire-resistant Hydraulic Fluid 4632 is a range of polyol ester type hydraulic fluids formulated with selected additives, available in four ISO viscosity grades: 32, 46, 68 and 100. This biodegradable and environmentally responsible fluid, which does not contain water, mineral oil or phosphate esters, can be used in place of a conventional antiwear hydraulic fluid in applications where there is a risk of fire or accidental environmental contamination, where it achieves excellent hydraulic fluid performance
Applications
Sinopec Ester-based Fire-resistant Hydraulic Fluid 4632 is suitable for use in:
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Hydraulic applications where there is a risk of fire or of accidental environmental contamination, where a conventional mineral-oil based antiwear hydraulic fluid would present a fire hazard or pollution hazard.
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Hydraulic applications where a fire-resistant antiwear hydraulic fluid of type ISO 6743/4 HFDU or ISO/FDIS 12922 is required.
Features & Benefits
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High flash point (270°C) and fire point (330°C) make the fluid resistant to fire, offering a safer working environment and greater equipment protection.
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Excellent antiwear performance in hydraulic pumps and valves when used in accordance with the equipment manufacturers’ recommendations.
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Excellent thermal and oxidation stability reduce the formation of deposits and sludge and prevent valve sticking, ensuring longer system life and extended drain intervals.
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High shear stability means the fluid stays in grade and is not broken down in service.
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Very high viscosity index (VI > 180) provides outstanding viscosity–temperature performance compared to conventional mineral oil (VI ~ 100) and phosphate ester (VI < 0) hydraulic fluids.
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Good lubricity properties, provided by the polyol ester fluid, protect hydraulic components from wear.
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Compatible with iron, steel, and most non-ferrous metals and their alloys.
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Wide operating temperatures range – from –20°C to 90°C.
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Suitable for use in hydraulic systems operating at a constant pressure of >40 MPa.
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Non-toxic, non-irritating and contains no hazardous ingredients, so safe to use and handle.
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Readily biodegradable and non-toxic to aquatic life, so suitable in applications where accidental spillage or leakage of fluid is possible.
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Excellent storage stability and long product life – comparable to conventional mineral oil fluids or polyglycols.
Specifications
| Sinopec Ester-based Fire-resistant Hydraulic Fluid 4632 | ||||
|---|---|---|---|---|
| ISO viscosity grade | 32 | 46 | 68 | 100 |
| cSt @ 40°C | 32.0 | 46.0 | 68.0 | 100.0 |
| cSt @ 100°C | >7.0 | >9.0 | >12.0 | >14.0 |
| Viscosity index, ASTM D 2270 | >180 | >180 | >180 | >180 |
| Air release at 50°C, mins, ASTM D 3427 | 10 max | 10 max | 15 max | 15 max |
| Foaming characteristics, ASTM D 892 | 50/0 max 50/0 50/0 | 50/0 max 50/0 50/0 | 50/0 max 50/0 50/0 | 100/0 max 100/0 100/0 |
| Neutralisation number, mg KOH/g, ASTM D 974 | 2.0 | 2.0 | 2.0 | 2.0 |
| Rust prevention, ASTM D 665 distilled water | pass | pass | pass | pass |
| Copper corrosion, 3 hours @ 100°C, ASTM D 130 | 1b | 1b | 1b | 1b |
| Water separability, ASTM D 2711 | 30 max | 30 max | 30 max | 30 max |
| Pour point, °C, ASTM D 97 | –20 max | –20 max | –20 max | –20 max |
| Flash point (COC), °C, ASTM D 92 | >270 | >270 | >270 | >270 |
| Fire point, °C, ASTM D 92 | >330 | >330 | >330 | >330 |
| Manifold ignition test, @ 704°C, CETOP RP 65H | pass | pass | pass | pass |
| Density @ 20°C, kg/l, ASTM D 4052 | 0.95 max | 0.95 max | 0.95 max | 0.95 max |
Industry and OEM specifications
| Sinopec Ester-based Fire-resistant Hydraulic Fluid 4632 meets the performance requirements of the following industry specifications: | |
|---|---|
| ISO | 6743/4 HFDU (synthetic fluids containing no water, other compositions) |
| ISO/FDIS | 12992 |
Additional shipping fess will apply to residential, limited access, deliveries outside the regular delivery network or locations requiring a lift gate to complete delivery.