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Parker Hannifin has created a highly integrated manifold concept that is said to offer users a simpler means of installing level-measurement instrumentation to process tanks and vessels.

Two single-piece manifolds integrate all of the valves and features required for connecting the upper and lower pressure-sensing points to a differential pressure transmitter.

The approach is said to eliminate a large amount of weight, size and potential leak paths compared with conventional ‘hook-ups’ that are fabricated using discrete valves and tubing connections.

Called CCIMS Level-Flange, the solution consists of two manifolds.

One provides a single-piece solution for the lower or ‘wet leg’ pressure connection at the bottom of a tank.

This has a flange at one side for connection to the tank, double block-and-bleed valves in a monoflange style, a mounting point for a differential process transmitter and tube connections for the balance-line connection to the second sensing point.

The second manifold provides an integrated solution for the upper or ‘dry leg’ pressure-sensing point, with a flange connection, block-and-bleed valves and balance-line connections.

The intimate nature of the piping connection provided by CCIMS Level-Flange aids the fundamental performance of the instrument system.

Traditional hook-ups, fabricated from discrete valve and tubing components, typically involve longer flow paths, bends and sometimes changes in bore size.

These can introduce pressure drops that can decrease measurement accuracy, commonly referred to as ‘gauge-line error’.

CCIMS Level-Flange provides a short, straight and even flow connection – allowing end users to benefit fully from the instrument’s accuracy to monitor process levels.

The close-coupled design ensures that the differential pressure instrument is mounted directly adjacent to the process vessel – helping to avoid the common problem of blockages that can be caused by factors such as viscous media, hydrate formation and freezing.

The weight and size of the integrated manifolds is also reduced compared with other solutions.

A complete assembly with instrument only extends around 10.4in/26.3cm from the tank – which can be as little as a half that of some other hook-ups.

This eliminates any need for supporting metalwork and reduces the likelihood of clashing with any nearby pipework.

The integrated nature of the manifolds also means that numerous joints are eliminated, helping to avoid the safety issues caused by leakages or emissions.

CCIMS Level-Flange is expected to reduce the installation time and cost of differential pressure transmitter level-measurement systems by up to 85 per cent.

Parker Hannifin — Parker Sales UK

With annual sales exceeding $10bn, Parker Hannifin is the world's leading manufacturer of motion and control technologies and systems, providing precision-engineered solutions for a wide variety of commercial, mobile, industrial and aerospace markets.

To meet its customers' needs in motion and control, Parker provides the broadest range of products available from any single supplier. This is supported by expertise in nine major technologies:

  • Hydraulics
  • Pneumatics
  • Electromechanical
  • Filtration
  • Process control
  • Fluid and gas handling
  • Sealing and shielding
  • Climate control
  • Aerospace

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