Titrando Detects Water In Liquids, Solids Or Gases

Metrohm has introduced the 851 Titrando titrator for low-level water detection in liquid, solid or gaseous samples. The 851 Titrando offers the possibility to determine the Bromine index coulometrically. The conventional titration cell, as well as the generator electrode with diaphragm, can also be used for this application. Only the anolyte and the catholyte need to be changed.

The instrument recognises the addition of a sample and starts the determination automatically. Up to four dosinos and dosing units can be attached to the MSB ports of the coulometer. In combination with the 851 Titrando, these can be used for the addition of sample, water-standard or auxiliary solutions, such as solubilisers. The reagent exchange can be automated, which means that the titration cell does not need to be opened and, subsequently, no humidity can enter the cell. Long conditioning times after a reagent exchange can thus be avoided.

Flex-Check Pumps Fibrous And Stringy Semi-Solids

Ingersoll Rand's ARO Fluid Technologies business has released the Flex-Check air-operated double-diaphragm pump line. Featuring a flexible internal-check design that permits the passage of fluids with stringy or fibrous semi-solids, the new Flex-Check pump offering is suited to applications in OEM and process industries where handling fibre-filled materials can typically clog and stall pumps with standard check arrangements, for example in car washes, printing and laundry.

The Flex-Check's check arrangement permits a continuous positive seal, allowing it to be mounted and operated in any of 360 degrees. Because the Flex-Check pump creates a positive seal across the check, this in turn creates suction lift that is 30 per cent higher than pumps outfitted with standard ball-type checks. This is a key feature in operations where the point of fluid dispersal is remote from the fluid source. Once the pump is shut off, the fluid flow stops.

This is an especially critical feature in fluid-supply operations, such as OEM, where unwanted excess fluid can create fluid measurement and delivery issues. The positive seal is also more environmentally sound and a money saver where excess fluid may be creating unnecessary waste. The Flex-Check is available in nitrile or neoprene for a broad choice of fluid compatibility. It can deliver up to 8.7 gallons per minute, enough flow for a range of low-to-medium demand applications. The Flex-Check pump contains the Simulshift valve arrangement, which avoids pump stall-out, even under low air-inlet pressures.