Air/Oil Tanks section of CV9 Catalog0 pages

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Air-Oil Tanks

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Single Tank Units

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Double Tank Units

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Features & Benefits

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These units, with their many unique and attractive features, provide the ultimate for those systems

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that require hydraulic-type (precision, smooth, and rigid) cylinder control from shop air.

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Air-oil systems can provide the smoothness and rigidity of a hydraulic system without the inherent

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high costs and space consuming pump, motor, tank, relief valve, and other components required

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for a noisy hydraulic system. They may also be used as storage tanks in booster systems, see

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page 6.11.

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Fabco-Air's unique Air-Oil tanks are available in single tank and space-saving double tank ver-

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sions with bore (I.D.) sizes of 1-1/4", 2" and 4" to suit all applications.

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Single Tank Units are used when hydraulic control of the cylinder is required in one direction

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only. If there is any question as to the integrity of the piston seal, a double tank is recommended.

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Single Tank Units are also used as fluid storage tanks for boosters, hydraulic shock options, and

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other applications.

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Double Tank Units are used when hydraulic control of the cylinder is required in both directions.

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The one-piece heads that hold both tanks simplify mounting and save space.

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DAO - 2 X 9

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Features and Benefits

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Operation to 150 psi

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Single tank units

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Double tank units, save space in two

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direction control systems

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Black anodized heads

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Tapped mounting holes in top and

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bottom heads

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Large flow ports

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Fill port on top

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Drain port on bottom

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Brass baffle plates and internal parts

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Baffles, top and bottom, help prevent

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fluid aeration

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• Choice of 1-1/4", 2" and 4" I.D. tanks

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• Tank lengths to your requirements

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• No sight tubes or gauges

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• Translucent fiberglass tube provides full visibility of

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the fluid at all times. You can see when fluid levels are

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too low or too high. You can also see if there is air or

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foam in the fluid. (-15° to + 200°F)

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• Custom molded Buna-N tube seals provide both I.D.

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and face sealing for a positive, no leak assembly

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• Tie rods of plated, high strength threaded rod

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• Aluminum tie rod cover tubes control the "H" dimen-

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sion and provide controlled compression of tube seals.

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They also provide a clean appearance.

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• Plated tie rod nuts

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SAO - 2 X 9

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Flow Port

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Air-Oil System Notes

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1 The best control is achieved by installing the speed control valves so that

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the fluid being forced out of the cylinder is being controlled. See the circuits

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on page 9.4.

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2 The piping between the cylinder and the speed controlling valve should

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be rigid enough to maintain the required rigidity of the system.

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3 It is best to mount the tanks so that the bottoms of the tanks are higher

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than the cylinder. Cylinder ports should be up with piping running as straight

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as possible to the tanks. This aids in purging the cylinder of air, by allowing

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the air to rise through the piping and into the tank where it will dissipate.

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4 The highest fluid level should be kept reasonably near the top baffle to

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avoid excessive air usage, providing the quickest cycle reversal, and to allow

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for possible fluid loss.

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5 If the fluid levels in the tanks unbalance, the fluid is bypassing the cylin-

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der's piston seal. This can occur in a new cylinder with U-Cups designed for

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air service or side loading on the piston rod. In old systems the bypass can

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be a result of seal and cylinder wear, seal shrinkage, and many other rea-

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sons. See circuits on page 9.4 showing crossover valve for tank balancing.

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Translucent

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fibreglass

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tube

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Baffles force fluid or

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airto sides of tank,

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eliminating surface

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disturbance,

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aeration & foaming

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' Custom molded

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Buna-N tube

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seal

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Quiet zone

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below baffle

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plate for

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sediment to

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settle out

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Usable

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Oil

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Capacity

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Brass baffle

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plates, tube, &

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spacers, top &

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bottom

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Drain

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Port

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Flow

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Port

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9.1

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Specifications subject to change without notice or incurring obligation

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