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Materials Handling


Sealing solution for compressors


H


oerbiger has developed a new rod sealing system for reciprocating compressors, the XperSEAL. The basic idea behind the XperSEAL is simple. A pressurised volume of oil surrounds the reciprocating rod and is retained by specially designed oil seal rings. This oil barrier prevents pressurised process gas from leaking along the rod as long as the oil pressure exceeds the process gas pressure. The higher dynamic viscosity of oil as compared to gases and the use of elasto-hydrodynamic effects allow optimal rod sealing and packing lubrication, while keeping oil loss to a minimum.


The required


oil pressure for the packing is supplied by a hydraulic unit. The power supply


and control of the hydraulic unit are provided by the ExBox-S, a central control unit that can be mounted in the hazardous area. It also monitors oil level, temperature and pressure. The XperSEAL packing provides absolutely gas-tight sealing and will be beneficial for compressors in a variety of applications. n


For more information ✔ at www.engineerlive.com/epe


Hoerbiger is based in Vienna, Austria. www.hoerbiger.com


Serially produced pipe diameters doubled


W


ith its latest catalogue, Jacob Pipework Systems has added a number of additions to its product range, including the doubling of existing serially


produced diameters. The spectrum of diameters included now extends from 60mm to 1,600mm, instead of the 800mm it was in the past. A wide range of custom parts and serially produced variations further complements the product range. The new food-grade range offers dual conformity to the EC1935/2004 directive and FDA regulations. More than 1,000 product components were tested down to the smallest detail for this range and exchanged or re-constructed where necessary. As part of the food-grade range the catalogue also contains new heat-sealed U-shaped seals and ring seals (silicone/EPDM), which are more resistant to chemicals, temperature and tearing than traditional adhesive-bonded rings. n


For more information ✔ at www.engineerlive.com/epe


Jacob Pipework Systems is based in Germany. www.jacob-pipesystems.com


HOmatic pinch valves: Innovation and quality that will pay off


VALVE ENGINEERING


HO-Matic AG Alte Obfelderstr. 55 CH-8910 Affoltern a. A. Phone: +41 (0)43 322 70 80 Fax: +41 (0)43 322 70 88 E-mail: info@ho-matic.ch www.ho-matic.ch


For more information ✔ at www.engineerlive.com/epe


HOmatic pinch valves: Ideal closing and measuring of bulk goods, liquids and gases


Q.S.V. EP patent


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