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PLANTOFLUX AT -S
Synthetic fire - resistant hydraulic fluids based on organic esters, type HFDU, rapidly biodegradable. PLANTOFLUX AT/ S are fire resistant hydraulic fluids with self-extinguishing properties. These are synthetic fluids formulated with organic esters and specifically selected additives. They do not contain mineral oils and are free from toxic and unpleasant smelling decomposition products. PLANTOFLUX-AT-S have a higher flash and combustion point than traditional, mineral oil-based hydraulic oils and are specifically designed to reduce the risk of violent explosion when in contact with open flames r hot metal surfaces. The high viscosity index, constant at all time, provides good lubrication performance in an extremely wide operating temperature range. PLANTOFLUX-AT-S offer high oxidation and ageing resistance, excellent corrosion protection and anti-wear properties, low foaming tendency, rapid water separation and consequently reduction of water and oil sludge. PLANTOFLUX-AT-S are nontoxic, biodegradable over 90% according to CEC-L-33-A93 and not included in the CEC list of the hazardous products subject to labeling. PLANTOFLUX-AT-S has also excellent biodegradation of > 60% according to OECE 301B. PLANTOFLUX-AT-S are Factory Mutual Research approved as less flammable hydraulic fluids and listed in the Group 1 of the Approval Guide (approval procedure no. 3014386).
Application
PLANTOFLUX-AT-S are primarily used as fire resistant hydraulic fluids in machines or plants operating in hazardous conditions, i.e. where naked flames or high temperatures are present and the fire risk caused by the fluid leakage is high, most notably: steel mills, blast furnaces, continuous casting machine, coke plants, etc.PLANTOFLUX-AT-S are generally applicable in any hydraulic systems where environmental protection and biodegradability are a priority. PLANTOFLUX-AT-S are miscible and compatible with conventional mineral oils, therefore a change to PLANTOFLUX-AT-S is possible at any time. Please contact our Technical Assistance. The compatibility with Nitrile, Teflon, Viton and Silicon elastomers is good, whereas the use of Neoprene, Ethylenepropylene, Butyl and Isoprene seals and hoses is not commonly recommended.Before filling the hydraulic circuit with PLANTOFLUX-AT-S it is important to know whether the fluid used previously was a mineral oil, a phosphate ester or a different one, such as water-glycol or inverted emulsion.
Mineral oil - Owing the miscibility and compatibility of PLANTOFLUX-AT-S with mineral oils, only draining before replacement is required. In case of relevant presence in the hydraulic system of deposits and sludge, a preliminary flushing with PLANTOFLUX-AT-S is recommended. Filters should be cleaned or replaced.
Phosphate esters-PLANTOFLUX-AT-S is miscible and compatible with phosphate esters, therefore the same procedure as for mineral oils can be followed. The compatibility with PLANTOFLUX-AT-S of elastomer components, i.e. seals, hoses, etc., present in the system, must be controlled in advance in the FUCHS' technical assistance laboratories.
Other fluids (water base)-Procedure for replacement is different depending on the fluid type. Please contact our technical department.
PLANTOFLUX-AT-S fluids possess a very high oxidation resistance and are able to resist for a long time to thermic-oxidative conditions, without suffering alterations of relevance. The joined action of metals, water and pollutant can accelerate the oxygen attack at high temperature, therefore, in order to get the best performances of the in service fluid, it is advisable to maintain it well cleaned and free of water. The temperature should not exceed 70 °C - 90 °C in the tank and in the operating parts of the hydraulic system. Temperature peaks of 90 °C are tolerable only for a short period of time. A periodical control of the in-use product is recommended by means of samples to be tested in FUCHS' laboratories. Our Technical Assistance will advise the customer on the best suggestions according to the test results.
Specifications
Advantages
Typical technical data:
Product | 46 AT- S | 68 AT -S | 69 AT -S | |
Properties | Unit | Test Method | ||
Appearance | - | Clear | Clear | |
Color | AS TM | 1.5 | 1.5 | DIN ISO 2049 |
Viscosity at 40 °C | mm2/s | 48 | 69 | DIN EN ISO 3104 |
Viscosity at 100 °C | mm2/s | 9.6 | 12.7 | DIN EN ISO 3104 |
Viscosity Index | - | 190 | 187 | DIN ISO 2909 |
Density at 20 °C | kg/m2 | 918 | 928 | DIN 51 757 |
Pourpoint | °C | -35 | -32 | DIN ISO 3016 |
Acid number | mgKOH/g | 1.2 | 1.5 | DIN 51 558 |
Foaming characteristics Sequ. I to III 24 °C immed./after 10 min 93.5 °C immed./after 10 min 24 °C after 93.5 °C immed./after 10 min |
ml ml ml |
0/0 20/0 5/0 |
0/0 20/0 5/0 |
ASTM D 892 ASTM D 892 ASTM D 892 |
Oxidation stability (100 °C, 350 h) viscosity variation |
% | 6 | 6 | Inhouse Test |
Demulsibility | min | 12 | 16 | DIN ISO 6614 |
Rust prevention, Stages A and B |
degree of corrosion |
no rust (pass) | no rust (pass) | DIN ISO 7120 |
Copper strip test | degree of corrosion |
1a | 1a | DIN EN ISO 2160 |
Cleanness level | Class | 7 | 7 | NAS 1638 |
Inflammability characteristics:
Product | 46 AT- S | 68 AT -S | ||
Properties | Unit | Test Method | ||
Flashpoint (COC) | °C | 270 | 280 | DIN ISO 2592 |
Fire point | °C | 338 | 358 | ASTM D 92 |
Spray ignition test (Factory Mutual) |
- | Pass | Pass | Factory Mutual |
Hot surface ignition test (Factory Mutual) |
- | Pass | Pass | Factory Mutual |
Spray ignition test (National Coal Board) |
- | Pass | Pass | National Coal Board |
Tribological characteristics:
Product | 46 AT- S | 68 AT -S | ||
Properties | Unit | Test Method | ||
Four ball test - welding | kg | 200 | 220 | ASTM D 2783 |
Four ball test - wear | mm | 0.35 | 0.35 | ASTM D 4172 |
Falex EP, breakage at | lbs | 2400 | 2400 | ASTM D 3233 |
Reichert Value: wear | mm2 | 14 | 14 | Inhouse Test |
FZG mechanical gear test rig FZG A/8,3/90 |
failure load stage |
12 | 12 | DIN ISO 14635-1 |
Vickers vane pump test, weight loss ring and vanes 250 h test 1000 h test |
mg | 16 19 |
16 19 |
DIN ISO 20763 DIN ISO 20763 |