Gas-Lubricated Seals ensure stable pump operation.August 25, 2009 -
Bi-directional double Cartex® GSDN gas seals can be installed to standardize new centrifugal pumps at chemical plants and refineries or recondition existing pumps. Using HR principle as characteristic design feature, seals produce self-cleaning effect that prevents contamination and increases operational reliability. Width of sliding faces ensure gas film stability, while silicon carbide face materials and DLC coating ensure optimal performance in continuous operation.
(Archive News Story - Products mentioned in this Archive News Story may or may not be available from the manufacturer.)
Original Press release
EagleBurgmann Industries
10035 Brookriver Dr.
Houston, TX, 77040
USA
Cartex® GSDN - the Latest Generation of Gas-Lubricated Seals from EagleBurgmann
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.
The proven HR principle is the characteristic design feature of the Cartex series: the seat and shaft sleeve rotate along with the pump shaft, while the springs remain stationary. Internal pressurization together with centrifugal forces creates a self-cleaning effect at the sliding faces during ongoing operation. This prevents harmful contamination and increases operational reliability, especially in applications where the media contains solids. High axial tolerance and the absence of dead space are two of the outstanding design features of the Cartex® GSDN. Wide sliding faces ensure high gas film stability. U grooves are a standard feature and enable bi-directional operation of the seal. Silicon carbide face materials and a high-strength DLC coating ensure optimal performance in continuous operation. The seals are designed to withstand critical situations during start-up and shut-down or if a fault occurs in the buffer gas supply. Double-balanced Cartex® GSDN seals remain closed and balanced even in these situations.
Operating limits:
d1 = 30 - 100 mm
p1 = 9 bar with U grooves (bi-directional)
p1 = 13 bar with V grooves (uni-directional)
t1 = -20°C -+ 170°C (depending on elastomer)
vg = 4 - 15 m/s
To Whom It May Concern:
This press release together with a photo of the product is available for downloading from www.eagleburgmann.com, section "News".
EagleBurgmann is a world leader in the manufacture of mechanical seals, systems, packing and expansion joints. In addition to offering a full range of products from standard, off the shelf products to highly sophisticated engineered systems, EagleBurgmann supplies a full range of cost effective services to users of rotating equipment including enhanced reliability services, MRO inventory management, repair and training. The Group's products are installed and deployed wherever safety and reliability are major design considerations, for example in the oil & gas, refinery, chemical, energy, food processing, paper, water, marine, aerospace and mining industries.
In the U.S., the company maintains manufacturing, engineering and testing facilities at its Houston facilities. Service Centers are located in Freeport and Pasadena, Texas; Baton Rouge, Louisiana; Cincinnati, Ohio; Benicia, California; Bridgeport, New Jersey; Charlotte, North Carolina; Denver, Colorado, and Midland, Michigan.
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