PRODUCT DESCRIPTION:
Fire Resistant Hydraulic Fluids ISO 46 & 68 have been purposefully designed to serve as substitutes for anti-wear, mineral oil-based hydraulic fluids, especially in scenarios where fire hazards are a concern. These fluids are versatile enough to be applied in environmentally sensitive hydraulic systems without compromising their overall operational efficiency.
What sets Fire Resistant Hydraulic Fluids ISO 46 & 68 apart is their composition, which excludes water, mineral oil, or phosphate ester. Instead, they rely on top-notch synthetic organic esters and meticulously selected additives to deliver outstanding hydraulic fluid performance. In fact, they provide lubrication on par with premium anti-wear hydraulic oils and are compatible with hydraulic components from all major manufacturers.
BENEFITS
- Fire-resistant
- Features a high ignition temperature and minimal heat release.
- Possesses properties that effectively contain and limit the spread of fire.
- Exhibits exceptional shear stability.
- Is non-toxic, posing no harm to aquatic life.
- Complies with Factory Mutual requirements.
- Is non-irritating, ensuring safety during use.
- Is fully biodegradable, contributing to environmental sustainability.
- Offers straightforward waste treatment options.
COMPATIBILITY
Metals: Fire Resistant Hydraulic Fluids ISO 46 & 68 are compatible with iron and steel alloys and most nonferrous metals and their alloys. They are not compatible with lead, cadmium, zinc, and alloys containing high levels of these metals. Suitable substitutes for these materials are available and should be used.
Paints and Coatings: Fire Resistant Hydraulic Fluids ISO 46 & 68 are compatible with multi- component epoxy coatings. They are not compatible with zinc-based coatings. Specific coating and application recommendations can be obtained from coating manufacturers or directly from your Vesta representative.
Fluids: Fire Resistant Hydraulic Fluids ISO 46 & 68 are compatible and miscible with nearly all mineral oil and polyol ester type hydraulic fluids and with some, but not all, phosphate esters. They are not miscible or compatible with water-containing fluids. For conversion recommendations, please contact your Vesta representative.
Vesta suggests that the equipment manufacturers’ recommendations for viscosity grade, performance requirements and general operating conditions should be checked prior to use.
The following chart contains recommendations regarding the use of Fire Resistant Hydraulic Fluids ISO 46 & 68 with commonly used elastomers. The elastomer applications listed are: “Static” which refers to trapped nonmoving seals such as O-rings in valve sub-plates and rigid, low pressure hose connections; “Mild-Dynamic” whose applications include accumulator bladders and hose linings where the hoses are exposed to high pressure and light flexing; and “Dynamic” which refers to cylinder rod seals, pump shaft seals and constantly flexing hydraulic hose.
| ISO 1629 | DESCRIPTION | STATIC | MILD DYNAMIC | DYNAMIC |
| NBR | Medium to high nitrile rubber | C | C | C |
| FPM | (Buna N, >30% acrylonitrile) Fluoroelastomer (Viton®) | C | C | C |
| CR | Neoprene | S | S | S |
| IIR | Butyl rubber | S | N | N |
| EPDM | Ethylene propylene rubber | N | N | N |
| PU | Polyurethane | C | C | C |
| PTFE | Teflon® | C | C | C |
C = Compatible
S = Satisfactory for short term use, but replacement with a completely compatible elastomer is recommended at the earliest convenience.
N = Not Compatible
STORAGE
If the following criteria are adhered to, Fire Resistant Hydraulic Fluids ISO 46 & 68 can be stored for at least six months.
Maximum recommended long-term storage temperature: 40°C Minimum recommended long-term storage temperature: 0°C Keep drums/containers tightly closed when not in use.
Store containers/drums in a dry and well ventilated area.
CHEMICAL AND PHYSICAL PROPERTIES
Property ASTM Method Typical Results
ISO Viscosity 46 68
| Code VI5- | 2924 | 2925 | |
| Appearance | Visual | ß— Yellow to amber fluid–à | |
| Kinematic Viscosity (cSt) – | D-445 | ||
| @ 0°C | 320 cSt | 554 cSt | |
| @ 20°C | 109 cSt | 135 cSt | |
| @ 40°C | 47.5 cSt | 68 cSt | |
| @ 100°C | 9.5 cSt | 12.5 cSt | |
| Viscosity Index | D-2270 | 190 | 185 |
| Density at 15°C | D-1298 | 0.92 g/cm3 | 0.92 g/cm3 |
| Acid Number | D-974 | 2.0 mg KOH/g | 2.0 mg KOH/g |
| Pour Point | D-97 | < -30°C | < -30°C |
| Foam Test at 25°C | D-892 | Sequence I: | Sequence I: |
| 50-0 ml-ml | 50-0 ml-ml | ||
| Corrosion Protection | ISO 4404-2 | Pass | Pass |
| D-665A | Pass/1a | Pass/1a | |
| Dry TOST | D-943 mod. | 800 hours | 800 hours |
| Flash Point | D-92 | 300°C | 304°C |
| Fire Point | D-92 | 360°C | 360°C |
| Air Release | D-3427 | 7 min | 7 min |
| Pump Test | D-2882 | <5 mg wear | <5 mg wear |
| Gear Lubrication | DIN 51354-2 | >12 FZG – | >12 FZG – |
| load stage | load stage | ||
| Water Separability | D-1401 | 41-39-0 (30) – | 42-38-0 (30) – |
| ml-ml-ml (min.) | ml-ml-ml (min.) | ||
| Specific Heat at 20°C | D-2766 | 2.06 kJ/kg °C | 2.06 kJ/kg °C |
| Coefficient of Thermal Expansion at 20°C | D-1903 | 6 X 10-4 per °C | 6 X 10-4 per °C |
| Vapor Pressure at 20°C | ASTM 02551 | 3.2 X 10-6 mmHg | 3.2 X 10-6 mmHg |
| at 66°C | 7.5 X10-6 mm Hg | 7.5 X10-6 mm Hg | |
| Bulk Modulus at 20°C at 210 bar | 1.87 X 105 N/cm2 | 1.87 X 105 N/cm2 | |
| at 3,000 psi | 266,900 psi | 266,900 psi | |
| Thermal Conductivity at 19°C | D-2717 | 0.167 J/sec/m/°C | 0.167 J/sec/m/°C |
| Dielectric Breakdown Voltage | D-877 | 30 kV | 30 kV |
| IGNITION TEST DATA | |||
| Hot Manifold Ignition Temperature | ISO-20823 | >450oC | >450oC |
| Auto Ignition Temperature | DIN 51794 | >400oC | >400oC |
| BIODEGRADABILITY TEST DATA | |||
| OECD-301 c | 86.5% | 80.4% | |
| biodegradable after | biodegradable after | ||
| 28 days | 28 days | ||
Available in: 200 Litres and 20 Litres
Item Code: VI5-2924 (46), VI5-2925 (68)