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Fluid Power

Article-Fluid Power

Fluid Power

O-seal valves

O-Seal system valves and fittings from this company are rated for heavy-duty liquid or gas service. They are designed to allow operators to change-out valves and other components for maintenance with the turn of a union nut. Operators can also install, remove, rotate, or reposition pipe section or valves without springing or having to cut the line. The system's reported leakproof reliability is the result of two flat-faced fittings joined with a resilient O-ring-incorporated into a close tolerance groove that actually utilizes line pressure for a tight seal.

CPV Manufacturing, 851 Preston St., Philadelphia, PA 19104; FAX (215) 387-9043;

For Information, circle 641

Small diameter metal hose

The flexible square lock hose, available in stainless and galvanized steel, ranges in diameter from 1/8 inch inside and is designed for mechanical protection, electrical wiring armor, protective armor, and appliance wiring armor. The interlock design has an "S" shaped interlocked profile and is available from a 3/16 inch ID and is used for exhaust, low pressure ducting, and as a protective covering. Temperature range for stainless steel is -60 to 1,800F.

Federal Hose, Box 1400, Painesville, OH 44077; FAX (440) 354-8538;

For Information, circle 642

Miniature pump

The 7006 miniature oil-free pump produces up to 3 bars of pressure and vacuums to 85% single stage (98% dual stage) in a 123x46x78 mm package. It features a totally enclosed console that reportedly reduces its noise signature considerably. With a permanently lubricated ball bearing to prevent air contamination, the 7006 pump is ideal for a variety of special market applications, including environmental, scientific, and medical.

Asf Thomas Industries, 2100 Norcross Pkwy., Norcross, GA 30071-3669; FAX (770) 242-0331;

For Information, circle 643

PV axial piston pumps

Called PVT38, -47, and -64, the pumps have displacements of 4.88, 6.1, and 7.93 inches 3/rev, respectively. All three are rated for operation at 4,000 psi continuously, 4,350 intermittent, and 4,750 peak, and are all rated at 1,800 rpm maximum speed. The PVTs are side ported with rear drive options. Each pump is able to drive another pump of its own type at maximum pressure and maximum displacement simultaneously on both the front and rear pumps.

Denison Hydraulics, 14249 Industrial Pkwy., Marysville, OH 43040; FAX (937) 642-3738;

For Information, circle 644

Diaphragm pumps

The 1/2-inch fluid ports stainless steel models possess high-fluid parts for all types of working environments. They feature Aro's Bolted Construction for leak-tight integrity and can be plumbed for drum fluid transfer in a matter of minutes due to their single-piece manifold design. Maximum flow is 13 gal/min and stall-free air valving is reported. Some applications include solvent supply and recovery, chemical feed, wastewater treatment, and OEM chemical process equipment.

Ingersoll-Rand, Fluid Products Div., Bryan, OH 43506-0151; FAX (419) 636-1674;

For Information, circle 645

Pilot control valves

A broad range of local and remote pilot valves is available in association with the valve actuation program for easy pilot control of process valves. The program offers an extended choice of options, ranging from single pilot valves with banjo fittings for quick and easy assembly, and pneumatic piping and electrical wiring in space critical applications, to NAMUR flanged valves and cabinet mounted valve blocks, which are electrically connected via multipol or bus to a controller.

Burkert Contromatic, 2602 McGaw Ave., Irvine, CA 92614; FAX (949) 223-3198;

For Information, circle 646

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