Literature Available On New Pressure-Wiper Seal For Hydraulic Cylinders

Literature is now available describing a new Pressure-Wiper Seal, known as the John Crane Type RH BWC, recently introduced by Crane Packing Company.

One-piece construction consists of a special abrasion-resistant elastomer bonded to a metal reinforcing washer, the internal anti-extrusion ring. Two unique designs provide an O.D. lip for positive seal in bore, a heavyduty I.D. lip for positive rod sealing against fluid pressure and a heavy-duty wiper lip to prevent entry of foreign matter.

The Type RH/BWC Wiper Seal offers a sealing advance over typical "V" packing sets and U-cup arrangements. Benefits include: reduced space requirements, increased bearing space, ease of assembly and disassembly, reduced machining, component and assembly costs and also allows for the use of a shorter cylinder.

Operating conditions include up to 2,500 psi and a temperature range from - 4 0 ° F to +250° F.

Other elastomers are available for special operating conditions.

For more information on the John Crane Type RH /BWC Pressure Wiper Seal as explained in Bulletin No. P-3022, Write 22 on Reader Service Card

Other stories from July 1981 issue


Maritime Reporter

First published in 1881 Maritime Reporter is the world's largest audited circulation publication serving the global maritime industry.