Mechanical hydraulic testers determine flow, pressure and temperature

(Werdohl, February 2013)

Mechanical hydraulic testers determine flow, pressure and temperature

Press release on the occasion of Hanover and Bauma trade fairs

The SDMKR reversible flow device that Stauff is debuting at the Hanover and Bauma trade fairs in April 2013 has been developed for the rapid and accurate monitoring of hydraulic components and systems in mobile hydraulics systems. The unique design allows the simultaneous measurement of the three parameters most important for the proper functioning of the system: flow, pressure and temperature. The device makes it possible for maintenance professionals to determine the performance of pumps, motors, valves or cylinders, as well as of complete systems, thereby ensuring that they function properly.

Thanks to the compact, practical and yet robust design – with a sturdy steel frame, a removable protective cover and shockproof displays – the SDMKR is perfectly adapted to a wide variety of applications in construction, forestry and agricultural machinery, either on location or in the workshop.

The portable flow devices are integrated in the hydraulic circuit only for the duration of the system test. For this purpose, they are equipped as standard with BSP connection threads on the input and output, and can be installed in both pressure and return lines. To test the performance of a hydraulic pump, the device is typically positioned upstream of the control valve.

The central items in the new development are a flow meter with a visual display and a built-in thermometer, as well as a loading valve. To protect them against damage, all components are sunk deep into the solid aluminium housing – they are further safeguarded against damage by the steel frame. The loading valve makes it possible to safely increase the working pressure gradually and continuously up to 420 bar in order to provide a realistic simulation of normal machine operation. The pressure changes are documented by a stainless steel pressure gauge located at the inlet of the loading valve.

Two integrated burst discs act as internal safety mechanism, effectively protecting the device against accidental over-pressure. When the maximum pressure in the hydraulic system is exceeded, the discs break and the oil is transported through a bypass. The burst discs are located in a screw-in cartridge and can be replaced easily and quickly by the user if necessary.

The operation of the hydraulic tester is based solely on mechanical principles: it can be used independently of any internal or external power supply, thus providing maximum flexibility. 

Unlike other comparable devices on the market, the SDMKR also permits flow in the reverse direction. This enables hydraulic cylinders to be lowered during the system test, for example. In this case, however, the flow meter does not provide a display value.

 

Hanover Trade Fair ▪ Hanover (Germany)
MDA - Motion, Drive & Automation
Leading Trade Fair for Power Transmission and Control

08 April - 12 April 2013

Meet us on stand D21 in hall 21

 

Bauma ▪ Munich (Germany)
International Trade Fair for Construction Machinery, Building
Material Machines, Mining Machines, Construction Vehicles
and Construction Equipment

15 April - 21 April 2013

Meet us on stand 321 in hall A6

 

Picture 1:

Flow meters SDMKR from Stauff will convince you
by their compact, practical and yet robust design

(Courtesy of Walter Stauffenberg GmbH & Co. KG)

Download picture (JPG, 10x10cm, 300dpi)

Picture 2:

Flow meters SDMKR from Stauff determine
flow, pressure and temperature

(Courtesy of Walter Stauffenberg GmbH & Co. KG)

Download picture (JPG, 10x10cm, 300dpi)

Picture 3:

The SDMKR is typically positioned upstream of the control
valve to test the performance of a hydraulic pump

(Courtesy of Walter Stauffenberg GmbH & Co. KG)

Download picture (JPG, 10x10cm, 300dpi)

Background Information

Walter Stauffenberg GmbH & Co. KG was founded in the 1950s in Werdohl, in the German province of North Rhine-Westphalia, and was initially a contract turning shop. Today the company operates under the trade name STAUFF, developing, producing and marketing fluid technology components for use in plant construction and mechanical engineering. In the fields of tube, pipe and hose clamps, measuring technology and hydraulic filtration, STAUFF is one of the world’s leading organisations in a growing industrial segment.

Meanwhile, more than 1200 employees (12/2012) in 18 companies generate an annual turnover of more than EUR 190 million (12/2012) worldwide. Additional distribution subsidiaries have recently been opened in Ireland, Malaysia and Vietnam. Besides the group headquarters in Werdohl Ehrenfeld, the company has production and logistics facilities in the German cities of Plettenberg-Ohle and Neuenrade-Küntrop.

Press Contact

Mr Boris Mette
Public Relations / Marketing
Tel.: +49 (0) 2392 / 916-154
Fax: +49 (0) 2392 / 916-4154
E-Mail: b.mette@stauff.com

(copy 2)

Back to overview