In practical use, the basic rotating face mechanical seal principle is adaptable to serve a tremendous number of sealing needs: standard mechanical seals can suit
most requirements-including temperatures to 500 degrees F and shaft speeds to 3600 RPM through the choice of secondary seal and the combination of seal and seat face materials
which are offered. Seals can be ordered in balanced configurations to seal pressures above 200 psi, or used in a multiple (double seals) for extremely high pressures or especially severe fluid
services....Special mechanical seals can be furnished to meet the most demanding of industrial applications considering pressure, temperature, speed or fluid.
Single spring mechanical seals:
Utilize single spring mechanical seals coiled in a right of left hand design to accommodate left and right hand turning pumps. They have the flexibility to accommodate misalignment, shaft deflection, and break away shock loading. It resists clogging in extremely viscous fluids.
We specialize in single spring mechanical pump shaft seals for
centrifugal pump applications. It's easy to replace your pump seals if you know what they
are. If you do not have a pump seal number such as PS-100, you can identify what kind of
seal you have, by comparing your mechanical seals components to the pictures.
To make sure your pump seals stationary seat fits, it's a good idea to provide the inside dimension of the bore it will be fitting into. The outside dimension of your mechanical seals stationary seat is helpful but more difficult to obtain an accurate measurement. Most pump seal stationary seats have rubber cups or o-rings that must be compressed when they are installed.
To decipher a mechanical seals materials code, use the following chart
|Elastomers||Seal Face||Metal Parts||Seal Seats||Springs|
|B. Buna||A. Bronze||A. Bronze||A. Bronze||E. Monel|
|V. Viton ®||C. Carbon||D. Brass||G. Cast Iron||F. Stainless|
|N. Neoprene||H. Glass Filled PTFE||E. Monel||J. Ceramic|
|F. Stainless||K. Ni-resist|
|AFLAS TM||M. Molded Plastic||L. Silicon Carbide|
|T- PTFE||Z. Tungsten Carbide|
|I. Non Asbestos||Z. Tungsten Carbide|
A sample material code could be: B C F L F
If you open this link in another browser window it will make it easier to complete.
Viton ® is a trademarks of Dupont Performance Elastomers
Aflas is a Trademark of Asahi Glass Co. Ltd
Last Updated on 3/21/2007
By American Seal & Packing
Copyright © Steadman & Associates, Inc. 2007