Page 56: of Maritime Reporter Magazine (October 1993)

Coast Guard Approves

Marine P-V Valve

Electromechanical Research

Laboratories, Inc. (E.R.L.) received

U.S. Coast Guard (USCG) approval for a new marine pressure-vacuum relief valve. Constructed of stain- less steel, the valve was tested in accordance with A.P.I. 2000, the

USCG reports, and approved for use in vapor control systems.

The valve, marketed under the name Superac, is an eight-inch, high- velocity model which employs an operating mechanism located out- side of the exhaust air stream, to eliminate valve sticking and improve reliability. Stainless steel bearings are used at all pivot points, which greatly improves the accuracy of the valve, the company reports.

E.R.L. tests show the valve is repeatable to within three percent of the set point, and has a total pressure increase of less than five percent from initial opening to the full-open flow rate.

Other characteristics of the

Superac are its quiet operation, sim- plicity of design, high velocity dis- charge and manual test levers. Also, the valve can be inspected without tools, the company said.

For more information on Superac from E.R.L.,

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NNS Launches 26th Los

Angeles Class Submarine

On Saturday, August 28 the To- ledo was christened at Newport News

Shipbuilding, the 26th Los Angeles class submarine launched there. The event marked the yard's 50th nuclear- powered submarine.

The principal speaker at the event was Secretary of the Navy John H.

Dalton.

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OMNIPURE is a USCG certified Type II Marine Sanitation device. It is also certified by the IMO and many other regulatory organizations. OMNIPURE is a registered trademark of ELTECH Systems Corporation. o£o ELTECH

ELTECH International Corporation

ELTECH International Corporation

A subsidiary of ELTECH Systems Corporation 1110 Industrial Blvd.

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Tel: (713)240-6770 Fax: (713) 240-6762

Geneva Branch: 18, Chemin des Aulx 1228 Plan-les-Ouates / Geneva, Switzerland

Tel: 41 (22)794 3384 Fax: 41 (22)794 4170

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Fax (206)882-2373 U.S.A. • • • • •

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Precision Navigation

Next time you think of steering steer to

Jastram!

Munson Manufacturing chose Jastram steering systems when commissioned to build this 12 metre Pilot Boat.

Jastram Marine Hydraulic

Steering Systems are an ideal choice when designing a new vessel or considering a retrofit

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Accufix®

Navigation Receivers

Selected by the United States Navy and the Royal Navy ^ Megapulse, Inc. 8 Preston Court Bedford, Mass. 01730-2380 USA (617)275-2010 Telex 92-3358 MEG-BDFD FAX (617) 275-4149

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