EagleBurgmann’s newly developed double Cartex® GSDN gas seal is the ideal solution for centrifugal pump applications at chemical plants and refineries. Users can install bi-directional gas-lubricated Cartex® GSDN seals to standardize their new pumps or to recondition existing pumps which have conventional stuffing box packings or liquid-lubricated mechanical seals.

EagleBurgmann has established the high performance SHF mechanical seal for use in multi-stage high-pressure boiler feed pumps in power stations.

This successful mechanical seal is notable for a low rate of wear, minimal leakage and high availability, even at high peripheral speeds. It is extremely long lasting even in peak load power stations with frequently fluctuating loads. Years of experience in the design and practical use of a multitude of high-pressure feed pumps come out in this mechanical seal.

The reliability of gas seals depends on an adequate flow of clean dry gas at the seal. Gas supply systems take product gas from a higher-pressure stage of the compressor, filter the gas and use it to flush the seal. When the compressor is not running, the flow is interrupted and there is no source of high-pressure gas to protect the seal from contaminated product gas. This can pose a serious risk, because deposits at the seal can cause leakage or even damage the seal. In order to alleviate this problem, piston compressors/boosters driven by compressed air have been deployed in recent years to suck in filtered gas from the compressor, increase the pressure and use the gas to flush the seal.

L9UC Seals are low temperature pusher seals with rotating flexible elements consisting of multiple springs. They have "O" rings for secondary sealing and other metallurgy in full compliance with API 682 requirements.

L9SA seals are low temperature metal bellow seals with rotating flexible element. They have elastomers for secondary sealing and other metallurgy in full compliance with API682 requirements.

The EagleBurgmann YE400 seal, used especially in refineries and for heat transfer media, is specifically designed for the most demanding of high and low temperature services as well as for high-speed applications.

The stationery configuration, in which the flexible bellows element is fixed into the equipment casing, eliminates damaging “swashing” motion due to casing distortion or shaft vibration and promotes more positive sealing while significantly extending seal life.

The EagleBurgmann NF992 is a pump seal development of the highly successful, and technically advanced, NF900 dry gas seal installed in many hundreds of turbo compressors and blowers.

Process and chemical pumps in hazardous application conventionally use liquid lubricated, double or tandem seal arrangements to prevent liquid leakage or hazardous emissions.  These seal configurations are subject to rapid failure and leakage to atmosphere when liquid pressure, or circulation, is lost.