7520
3Pages

Solids Solutions for Sealings Technology 7520 Model Maintenance Free & Self-Adjusting Seal Click Here to Request A Quote The key component of the 7500 rotary shaft seal design is the solid elastomer, which is made from FDA approved silicone and can handle temperatures up to 400F degrees. The 7520 is built for slurries or very abrasive applications. The elastomer is molded slightly smaller than the shaft size so that an interference fit is achieved. It is this tight fit that seals the shaft, which stops material from migrating past, and drives the two rotating faces called “rotor cups”. The rotating rotor cups compressed against the two stationary stator plates is what creates the primary seal that stops product leakage. These dynamic seals are also air purged at 5 to 7 PSI above any pressure in the vessel to assist in maintaining a positive seal. Designed for C.E.M.A. screw conveyor and bulk handling equipment The housing is machined out of Anodized Aluminum Designed to handle linear shaft growth, and 1/4” total radial shaft runout Bolting pattern will accommodate flange mounted bearings Purge with air, 5 to 8 psi above vessel pressure, or silicone grease Zero maintenance due to unique self adjusting design

Functionality The key component of the 7500 rotary shaft seal design is the solid elastomer, which is made from FDA approved silicone and can handle temperatures up to 400F degrees. The elastomer is molded slightly smaller than the shaft size so that an interference fit is achieved. It is the interference fit of the elastomer and shaft that not only seals the shaft so the product can’t migrate past and leak out, but it also causes the internal seal parts to turn with the shaft so that damage to the shaft is eliminated. As the elastomer turns with the shaft, it drives a pair of PTFE...

Solids Solutions for Sealings Technology 7520 Seal Installation If you have any questions before you begin your installation please call 1-856-662-5162 Shaft should be totally clean of any wear, dirt, oils or grease before installing the seal. Carefully remove seal from shaft. *Use mild soapy water for lubrication or P-80 Rubber Lubricant Emulsion. Contact Us Watch Our Seal Installation Video Installing the 7520 Seal 1. Housing must be perpendicular - normal to the shaft 2. Alignment of housing to shaft cannot exceed 2° 3. Check and make sure the O-ring at the inboard is seated 4. Check for...