Sealing solutions for the infrastructure

At the synthetic fiber production facility at Teijin Aramid, the Netherlands, a heat transfer pump is sealed with a high-efficiency NMB-22P-6R-65-00 magnetic coupling. The heat transfer oil can reach temperatures of up to 315 °C (599 °F). The patented low eddy current gap trap keeps the power losses – and heat generation – down despite the high drive power of 45 kW.

BuraTAL 9650T3 sealing sets have proven their worth for sealing valves in accordance with the TA-Luft (Technical Instructions on Air Quality Control) in various chemical production plants. Even at high temperatures, the 9650HT sealing sets guarantee very low leakage rates right up to helium-tightness.

DRO Rotary kiln sealing system in a plant for incinerating chemical residues at Infracor GmbH at the Chemiepark in Marl, Germany.

Expansion joints are used in pipes carrying steam at Eastman Chemical Co. in Kingsport, TN, USA.

Operating conditions: p = 0.55 bar (8 PSI), t = 427 °C (800 °F).

Sealing a coolant compressor at the Yeochun NCC Company in Korea with a PDGS10 – a gas-lubricated multiple mechanical seal in tandem arrangement. The medium to be sealed is ethylene. Heat tracing at temperatures down to -100 °C (-148 °F) is unnecessary due to the application of a special dynamic secondary sealing element.