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:

• 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.

• Hydraulic applications where a fire-resistant antiwear hydraulic fluid of type ISO 6743/4 HFDU or ISO/FDIS 12922 is required.

Features & Benefits

• 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.

• Excellent antiwear performance in hydraulic pumps and valves when used in accordance with the equipment manufacturers’ recommendations.

• Excellent thermal and oxidation stability reduce the formation of deposits and sludge and prevent valve sticking, ensuring longer system life and extended drain intervals.

• High shear stability means the fluid stays in grade and is not broken down in service.

• 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.

• Good lubricity properties, provided by the polyol ester fluid, protect hydraulic components from wear.

• Compatible with iron, steel, and most non-ferrous metals and their alloys.

• Wide operating temperatures range – from –20°C to 90°C.

• Suitable for use in hydraulic systems operating at a constant pressure of >40 MPa.

• Non-toxic, non-irritating and contains no hazardous ingredients, so safe to use and handle.

• Readily biodegradable and non-toxic to aquatic life, so suitable in applications where accidental spillage or leakage of fluid is possible.

• 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.