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TECH N I C A L
BU LLETI
PYDRAUL 312
FIRE-RESISTANT HYDRAULIC FLUID
Pydraul 312 Fire-Resistant Hydraulic Fluid . . . a synthetic fluid that gives you the performance of premium grade petroleum oils -- plus safety -- at the price of water /glycols.
TECHNICAL BULLETIN P-312
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PYDRAUL 312
FIRE-RESISTANT HYDRAULIC FLUID
Pydraul1 312 Fire-Resistant Hydraulic Fluid . . . a synthetic fluid that gives you the performance of premium grade petroleum oils -- plus safety -- at the price of water/glycols.
TECHNICAL BULLETIN P-312
Registered ludemjik ot Monssnlo Compiny Organic Division/800 N. Lindbergh Blvd./St. Louis, Missouri 63166
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Table of Contents
Page INTRODUCTION............................................... 3 PROPERTIES OF PYDRAUL 312
Chemical............................................................. 3 Inspection................................................... 3 Corrosion and Stability.............................. 5 Fire-Resistance........................................... 5 Performance.................................................... 3 CHANGE-OVER PROCEDURES.......................... 7 HANDLING AND STORAGE...............................0
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Introducing Pydraul 312
Hydraulic Fluid ...
The newest member of Monsanto's internationally accepted and growing line of fire-resistant hydrau lic fluids and lubricants.
In 1951 Pydraul hydraulic fluids first began work ing to protect hydraulic operations from fire. Now, well over a decade later, the six Pydraul fluids have performed millions of machine hours of ser vice without contributing to a single fire .. .not even when sprayed from ruptured high-pressure hydraulic lines onto white-hot metal. And besides fire-resistant, the Pydraul fluids have always offered ...
.. . lubrication as good as premium grade oils ... freedom from corrosive action and foam . .. ease of maintenance . .. and permanence - they don't "wear out"
Where does new Pydraul 312 fit into this well established picture?
Pydraul 312 hydraulic fluid is a unique marriage of synthetic fluids with specially chosen petroleum fractions ... and the result is a fire-resistant hy draulic fluid that matches or excells the properties of existing hydraulic fluids - including synthetics, premium grade petroleum oils, and water-contain ing fluids - but sells in the same price range as water/glycol fluids - a much lower price than other water-free, fire-resistant hydraulic fluids!
Chemically Speaking ...
Pydraul 312 fire-resistant hydraulic fluid is a per manent solution of carefully selected petroleum fractions in a synthetic base of halogenated hydro carbons and phosphate esters. The benefits of this unique hydraulic fluid to you, the user, are fireresistance, lasting chemical stability, no oxidation or corrosion in normal service, good hydraulic system performance and low maintenance for your machines.
Inspection Properties ...
Viscosity, SSU <g. 40F Viscosity, SSU @ 100F Viscosity, SSU 210F Viscosity Index Pour Point, F Density 25/25
Grams/cc pounds/gal
ASTM D-892 Foam Test Sequence I Sequence II Sequence III
4200 312.0
50.9 4 77 -10
1.095 9.13
Pass Pass Pass
The viscosity and viscosity index of Pydraul 312 are very similar to those of a high quality KAO (rust and oxidation inhibited) type petroleum hydraulic oil as the comparative viscosity curves indicate.
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TEMPERATURE, DEGREES FAHRENHEIT SO TO SO 90 100 110 120 !30 i tso ISO 170
VISCOSITY. SAYBOLT UNIVERSAL SECONDS
VISCOSITY. SAYBOLT UNIVERSAL SECONDS
60 70 80 90 100 HO 120 130 140 150 TEMPERATURE, DEGREES FAHRENHEIT
170 180 190 200 210 220 230 240 250 260 270 280 290 300 310 320 330 340 350
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Corrosion and Stability ...
The corrosion and oxidation stability properties of Pydraul 312 are equal to those of the best petroleum hydraulic fluids. Pydraul 312 will not rust or corrode any metal in a hydraulic system even when over-heated to 250F.
In the ASTM D-665 Rust Test Pydraul 312 showed no rust at all, and in use Pydraul 312 does not lose its anti-rust properties.
Good hydrolytic stability is a basic characteristic of Pydraul 312. If water somehow enters your hydraulic system, Pydraul 312 won't hydrolyze to foam acidic or corrosive products.
Beverage Bottle Test (Pydraul 312 plus water aged (: 200F for 168 hours with a copper strip through both phases).
Neutral No. change, mg KOH/mg
Viscosity change, % & !00F ^C:210F
Insolubles Weight loss, Cu strip, mg/cm7
0.04
-0.6 -1.3 none none
Fire Resistance ...
Pydraul 312 is an industrial fire-resistant hydrau lic fluid.
Miscellaneous Fire-Resistance Tests
ASTM D-286, Auto. Ign. Temp eF
940
High Pressure Spray Test (AMS-3150C and MIL-F-7100). Test fluid sprayed at 1000 psi through orifice, passing through flame of oxyacetylene torch, 6000F.
Low Pressure Spray Test (AMS-3150C). Test fluid sprayed at low pressure over ignited, oil-soaked rags to determine degree of increase in flame intensity.
Hot Manifold Test (MIL-F-7100). Test fluid dripped on tube at 1300F,
Molten Metal Ignition Test. Test fluid exposed to the surface of aluminum alloy at 1200F to test for spontaneous ignition.
Intermittent flashing but self-extinguishing.
Slight increase in flame intensity.
Intermittent flashing but does not propogate to pan below. Does not ignite spon taneously. Flashes intermittently with ignition source.
Your Monsanto representatives will be glad to show you color motion pictures of the perform ance of Pydraul 312 in these tests.
To test fire-resistance under working conditions, Pydraul 312 was sprayed on actual ignition sources in operating plants. In no case was a fire carried from the immediate source of ignition. In one plant, a line rupture on a die-casting machine sprayed Pydraul 312 onto molten aluminum in a holding furnace and over the surrounding area. Flame was confined to the furnace, no plant per sonnel were injured, and there was no fire damage.
Performance Properties ...
Pydraul 312 has good viscosity and viscositytemperature (V.I.) properties. These properties are permanent. Pydraul 312 will not shear me chanically to degrade viscosity.
The following chart shows viscosity of Pydraul 312 before a Vickers Hydraulic Pump Test... and practically the same viscosity after the test.
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--30 --20 --10
TEMPERATURE, DEGREES FAHRENHEIT SO SO 70 SO 90 100 110 120 130 1*0 ISO
A.S.T.M. STANDARD VISCOSITY-TEMPERATURE CHARTS FOR LIQUID PETROLEUM PRODUCTS (D 3*1)
CHART B: SAYBOLT UNIVERSAL VISCOSITY, A8RIDGE0
Pydraul 312 Saybott Viscosities -- Before Vickers Pump Test
-- -- --. After Vickers Pump Test
VISCOSITY. SAYBOLT UNIVERSAL SECONDS VISCOSITY. SAYBOLT UNIVERSAL SECONDS
no 120
TEMPERATURE, DEGREES FAHRENHEIT
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Vickers Hydraulic Vane Pump Test (V-105E pump, 1000 hours, 140F, 1000 psi)
% Viscosity change @ 100F & 210F
-4.3 -1.0
Weight loss of pump parts, gms bushings, 2015 bushings, 2016 ring
vane
nil -0.0057 -0.0013 -0.0021
Pydraul 312 lubricates as well as or better than high-quality R&O type petroleum hydraulic oil.
Four Hall Wear Test (620 rpm, 1 hour, 167F)
Steel on steel, mm scar diameter 4 kg load 10 kg load 40 kg load
0.24 0.25 0.44
Steel on bronze 10 kg load
0.87
Timken Test Timken OK load, lbs.
55
Pydraul 812 lubricates under extreme pressure as well as high-quality industrial gear lubricants.
Field Tests In addition to the laboratory tests, field tests in varied equipment such as automatic multi welders, die-casting machines and mobile steel mill equipment indicate Pydraul 312 will give years of trouble-free pump service ... the same long pump life afforded by high-quality R&O typo petroleum hydraulic oils.
And Pydraul 312 doesn't wear out. Except for normal "make-up",
... you don't add water
... you don't have "drain and change" periods
... you don't have to check it daily
... or perform most of the other-time-consum ing maintenance necessary with water-con taining fluids.
Change-Over Procedures
Converting to Pydraul 312 hydraulic fluid is easy. Virtually every type of equipment that uses fireresistant hydraulic fluid has been converted to Pydraul fluids. Equipment manufacturers are, therefore, experienced in Pydraul fluid conversions and should be consulted.
If changing seals is necessary, equipment manu facturers can tell you what seals to change, and most even carry a supply of correct seals. Labo ratory tests show that Viton* and silicone seals are best for Pydraul 312.
To replace other Pydraul fluids with Pydraul 312 where compatible seals are in the system, it is only necessary to add Pydraul 312 as make-up fluid. It is not necessary to drain or clean. When you convert from petroleum oils, non-Pydraul synthetic fluids, water/glycol fluids, or water-in oil emulsions, we recommend the following steps. These steps conform to National Fluid Power Association Standards.
Your Monsanto representative will assist you any way he can, or you can telephone our technical specialists in St. Louis directly.
Changing from Phosphate Esters (other than Pydraul)
(1) Drain the system completely.
(2) Cleaning is unnecessary.
(3) Generally, seal changes are unnecessary.
Trademark of 1.1. duPonl de Nemours & Co., Inc.
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Changing from Petroleum Oil
1. Completely drain and clean the system. Small amounts of oil will not interfere with the per formance of Pydraul 312, but resistance to fire is reduced by the amount of oil left in the system.
2. Drain and blow out pipelines. Manually clean valves and reservoirs.
3. Open or remove and drain valves. Replace gaskets, packings, and seals with those com patible with Pydraul 312. It is particularly important to change dynamic seals. Static seals do not necessarily have to be changed if there is no objection to replacing them each time hydraulic components are serviced.
4. Remove pumps, accumulators, and cylinders, if necessary, for draining. Replace packings, seals, gaskets, and bladders with those com patible with Pydraul 312.
5. Check component functions before the system is closed and fluid is added.
6. If your system cannot be completely drained, you may have to flush it with a small amount of Pydraul 312.
Changing from Water/Glycol
or Water-in-Oil Emulsion
1. Drain and clean system thoroughly. Remove all traces of water. Empty all lines and low points or dead pockets in components.
2. Clean with steam or warm water. Follow by blowing with dry air.
8. Check sealing materials, hoses, and accumu lator bags. Replace if necessary with compati ble materials.
4. Install a minimum charge of Pydraul 312 and operate the system from 16 to 24 hours. During this period, inspect the reservoir. If water or other contaminants float to the top, skim them off.
6. Drain the flushing charge immediately after shut-down while the fluid is warm. Drain all isolated points or parts which do not drain back to the reservoir. If water is apparent in fluid clinging to walls, wipe down all accessible parts.
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Handling and Storage
As with all specialized industrial fluids, certain precautions are advisable when handling Pydraul 312. No problems will arise when Pydraul 312 is used as recommended.
Avoid repeated or continuous skin contact. Re peated or prolonged contact can lead to drying and skin "chapping". Where prolonged skin con tact cannot be avoided, gloves should be worn.
At room temperature there is no significant vapor inhalation hazard from Pydraul 312; however, in halation of vapors produced when the fluid is at high temperatures should be prevented. Single 6-hour exposures to an atmosphere saturated with vapors at ambient temperatures produced only mild discomfort in experimental animals and they survived the 10-day subsequent observation period without ill effect.
Although eye irritation studies using Pydraul 312 at full strength indicate Pydraul 312 is a mild irritant, there is no evidence to show Pydraul 312 causes permanent damage to eye tissue. If Pydraul 312`is splashed or sprayed into the eyes, eyes should be thoroughly flushed with water and the workman referred to a physician. To relieve irri tation, physicians have used 1% tetracaine solu tions, as well as ophthalmic cortisone acetate solution.
Pydraul 312 hydraulic fluid can be stored at sub zero temperatures without fluid damage. Before using, simply allow the fluid to warm to 20 30&F. Drums stored outside should be sealed tightly and placed in a horizontal position to keep out moisture.
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DISTRICT SALES OFFICES
ALL DIVISIONS
ATLANTA, GEORGIA 30326 Lenox Towers West, 3390 Peachtree Pd. N.E. Tel. (404) 231-4320
BOSTON, MASSACHUSETTS 02149 Everett Station Tel. (617) Dunkirk 7-5010
CHICAGO, It UNO/S 3156 Des Plaines Ave. Des Plaines, Illinois 60018 Tel. (312) 296-6686
CINCINNATI, OHIO 45206 1501 Madison Poad Tel. (513) 751-6707
CLEVELAND. OHIO 44122 3645 Warrensville Center Pd. Tel. (216) 991-5400
DETROIT, MICHIGAN 48235 500 Northland Towers Tel. (313) 357-0910
HOUSTON, TEXAS 77002 1300 Main Street Tel. (713) Capitol 3-4011
LOS ANGELES. CALIFORNIA 90022 6670 E. Flotilla St. Tel. (213) Raymond 3-2492
MINNEAPOLIS, MINNESOTA 55402 912 Northstar Center 110 S. Seventh St. Tel. (612) Federal 9-4651
NEW YORK NEW YORK 10017 277 Park Avenue Tel. (212)922-4111
PITTSBURGH, PENNSYLVANIA 15222 No. 4 Gateway Center Bldg. Room 1406 Tel. (412) 261-2156
ST. LOUIS, MISSOURI 63166 800 N. Lindbergh Blvd. let. (314) Wydown 3-1000
SAN FRANC/CSO BAY AREA 2710 Lafayette, Santa Clara, Calif. 95052 Tel. (408) 243-0414
SEATTLE, WASHINGTON 98104 911 Western Avenue Tel. (206) Main 2-4203
SPRINGFIELD, MASSACHUSETTS 01101 730 Worcester Ave. Tel. (413) 788-6911
WILMINGTON, DELAWARE 19803 2005 Concord Pike. Fairfax Tel. (302) Olympia 8-6531
Additional District Offices are maintained by:
Agricultural Division
EL DORADO. ARKANSAS 71731 Smackover Highway P. 0. Box 231 Tel. (501) Union 3-3151
LUL1NG, LOUISIANA 70070 P. 0. Box 174 Tel. (504) 784-2911
* Building Products Department
ST. LOUIS. MISSOURI 63166 < 800 N. Lindbergh Blvd. * Tel. (314) Wydown 3-1000
l LOS ANGELES, CALIFORNIA 90066 814 San Fernando Road Tel. (213) CA. 2-9111
* Chemstrand Company Division
l AKRON. OHIO 44313 3030 West Market St. J Tel. (216) Temple 6-7941
* CHARLOT1E, NORTH CAROLINA 28202 Wachovia Bank Building 129 West Trade St. J Tel. (704) 376-9871
l NEW YORK. NEW YORK 10001 c 350 Fifth Ave. Tel. (212) 556-5100
* ENGLEWOOD CLIFFS. N. J. 0 661 Palisades Ave. Englewood Cliffs, New Jersey 07031 Tel. (201) 568-2151
Hydrocarbons & Polymers ct Division Lion Oil EL DORADO. ARKANSAS 71730 c Lion Oil Building Tel. (501) Union 3-3111
JACKSON. MISSISSIPPI 39209 l P.O.Box 10937 Westland Station Tel. (601) Fleetwood 2-3648
LITTLE ROCK. ARKANSAS 72203 J 1515 West Seventh St. Tel. (501) Franklin 6-2437
MEMPHIS. TENNESSEE 38101 1023 Riverside Drive l P.O.Box 252 Tel. (901) Whitehall 8-4451
Organic Chemicals Division (Rubber Industry)
AKRON. OHIO 44311 920 Brown Street P. 0. Box 2307 Tel. (216) Hemlock 4-1921
MONSANTO. 800 N. LINDBERGH BLVD., ST. LOUIS, MISSOURI 63166
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