History of Harwood Engineering

Harwood was started by Donald H. Newhall in 1947 in answer to the demands of industrial and technical organizations for high-pressure equipment of size and range greater than elsewhere available. Hardware for generating and measuring pressure with associated piping and valving in various sizes reaching to 200,000 psi has been offered from the start. In fact, they were the sole supplier of equipment above 3 Kilobar (45,000 psi) in the United States at the time.

In the passing years, products of the company have proliferated both in range and variety; to include fittings suitable for gas pressure of 350,000 psi, systems incorporating vessels for 430,000 psi and special devices operating to over 2,000,000 psi (anvil apparatus), with pumps, compressors and intensifiers ranging from hand-operated models up to 150 H.P. electro-hydraulic units.  Harwood developed the “Controlled Clearance” principle upon which primary standards of pressure to as high as 30 Kilobar are used throughout the world.

Newport Scientific is proud to be the supplier for all of your Harwood products!

High Pressure Testing Equipment

Since 1947 Harwood Engineering Company, Inc has been engaged in the development and manufacturing of high pressure equipment, components and systems to generate, contain, measure and control very high-pressure levels in liquids and gases. Newport Scientific, Inc is proud to announce that we have aquired Harford Engineering's full line of high pressure equipment and supplies including tubing, fittings, valves, vessels, intensifiers, measurement cells, and other apparatus to pressures of 200,000 psi, with pumps, compressors and intensifiers ranging from hand-operated models up to 150 H.P. electrohydraulic units.

For over seventy years, Harwood Engineering has designed and manufactured high pressure equipment capable of producing pure isostatic pressures to 30 kbar, (430,000 psi) at room and elevated temperatures, and with presses up to 5,000 tons for quasi-hydrostatic pressures, necessary in the manufacturing of diamonds and fundamental studies in pure physics, geophysics, and geochemistry. Newport Scientific is proud to have aquired the Harwood Engineering product line and you can now come to us for the great quality product you have come to expect.