Two European suppliers of liquid silicone rubber metering systems have come out with new versions in the past year.

Two European suppliers of liquid silicone rubber metering systems have come out with new versions in the past year. Elemet of Austria (U.S. office in DeWitt, Mich.) introduced a lower cost alternative to its feature-loaded TOP 3000 metering system. The new TOP 1000 is not designed for high-end uses that require very precise ratio control. It uses pressure-controlled feeding from 20-liter pails or 200-liter drums without the gear-pump metering and closed-loop control of the high-end system. The result could be somewhat more leftover material of one component due to ratio variances. However, the new system is almost 30% less costly. Both systems deliver max. output of 2.5 L/min at 1:1 mix ratio and can add up to 10% colorant.

In addition, 2KM of Germany (U.S. office in Williamsville, N.Y.) has come out with the Silco-Star e-flow system for clean-room operation. It has electric servo metering pumps that are clean and quiet. Also in the past year, 2KM introduced the Silco-Star PFM system for medical/pharmaceutical applications. It is a pulsation-free, very exact, and highly repeatable system. Besides the standard metering pumps, a compact plunger metering system mounts directly on the injection unit. It is made of stainless steel and designed for easy cleaning.