Floating seals ensure smoother friction in the construction vehicles
Floating Brush Seal - Bearings Plus · “The floating brush seals have worked very well for us...
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Demand for brush seals has significantly increased due to its superior leakage characteristics and reliability. Currently carbon rings with tight radial clearance are adopted to control the steam leakage through the bore and on the face. However, carbon rings are weak, very brittle, and wear fast leading to steam leakage and subsequent damage to the adjacent bearings. This often leads to downtime and costly repairs due to secondary damage. “The floating brush seals have worked very well for us exceeding three years and still running, while we were replacing the conventional carbon seals once a year.” Mike Long, Dakota Gas The floating brush seal is provided with a carbon ring acting only as a face seal and the brush is relied on for radial sealing as shown in Figure 1. The floating feature reduces the effects of the bristles radial stiffness and eliminates the requirements for an elaborate alignment between the casing and the shaft. This makes them a drop in replacement for the carbon ring and allows for easy field installation, as shown in Figure 2. Extensive laboratory and field testing has been conducted on these seals. Field installations dating back to 2005 show very good acceptance for floating brush seals. Sample data from test seals are shown in Figure 3, further illustrating the benefits of the floating brush seal upgrade. Floating Brush Seal Floating Brush Seals • Protect downstream carbon rings when a floating brush is installed upstream • Eliminates the need for stocking different size carbons • Prevents secondary damage to the bearings and leakage to atmosphere • Auto-centering brush seal capability and light weight minimizes shaft wear and heat generation • Reduces the elaborate wearing in requirements with conventional carbon rings • Reduce downtime cost and increased service life by three folds For more information about this and other products, please contact: Bearings Plus® 8525 West Monroe • Houston, TX 77061 Phone: (713) 948-6000 • Fax: (713) 944-3950 Email: [email protected] Web: www.bearingsplus.com Floating Brush Seal FIGURE 2 Leakage,lbm/hr Pressure difference, psid Worn carbons 200 160 120 80 40 0 0 20 40 60 80 100 120 Upgraded floating brush seal FIGURE 3 FIGURE 1 PATENTED
Transcript of Floating Brush Seal - Bearings Plus · “The floating brush seals have worked very well for us...
Demand for brush seals has significantly increased due to its superior leakage characteristics and reliability. Currently carbon rings with tight radial clearance are adopted to control the steam leakage through the bore and on the face. However, carbon rings are weak, very brittle, and wear fast leading to steam leakage and subsequent damage to the adjacent bearings. This often leads to downtime and costly repairs due to secondary damage.
“The floating brush seals have worked very well for us exceeding three years and still running, while we were replacing the conventional carbon seals once a year.” Mike Long, Dakota Gas
The floating brush seal is provided with a carbon ring acting only as a face seal and the brush is relied on for radial sealing as shown in Figure 1.
The floating feature reduces the effects of the bristles radial stiffness and eliminates the requirements for an elaborate alignment between the casing and the shaft. This makes them a drop in replacement for the carbon ring and allows for easy field installation, as shown in Figure 2.
Extensive laboratory and field testing has been conducted on these seals. Field installations dating back to 2005 show very good acceptance for floating brush seals. Sample data from test seals are shown in Figure 3, further illustrating the benefits of the floating brush seal upgrade.
Floating Brush Seal
Floating Brush Seals
• Protectdownstreamcarbonringswhenafloatingbrush isinstalledupstream• Eliminates the need for stocking different size carbons• Prevents secondary damage to the bearings andleakagetoatmosphere• Auto-centeringbrushsealcapabilityand light weight minimizes shaft wear and heat generation• Reducestheelaboratewearinginrequirements with conventional carbon rings• Reducedowntimecostandincreased service life by three folds
Formoreinformationaboutthisandotherproducts,pleasecontact:
BearingsPlus®8525 West Monroe • Houston, TX 77061
Phone: (713) 948-6000 • Fax: (713) 944-3950Email: [email protected]
Web: www.bearingsplus.com
Floating Brush Seal
FIGURE 2
Leak
age,
lbm
/hr
Pressure difference, psid
Worn carbons
200
160
120
80
40
00 20 40 60 80 100 120
Upgraded floatingbrush seal
FIGURE 3
FIGURE 1
PATENTED
