Announcing a new revision of the Kalsi Seal Handbook


The Kalsi Seal Handbook provides guidelines on how to implement Kalsi-brand rotary shaft seals in rotating equipment. It is a pdf-based e-book with individually revisable chapters linked from a web-based table of contents. This publication format streamlines the revision process and makes it easy to provide the most up to date information to our customers.

The most recent revision to the seal handbook was published to our website on November 4, 2018. The following chapters were affected by the revision: B1, B2, C15, C17, D3, D11, D13, E1, and E6. Highlights of the revision are described below.

Chapters B1 and B2 now include more information on the effect elastomer swelling has on high pressure seal extrusion resistance. Chapter C15 now covers the subject of high pressure washpipe packing for top drives and power swivels. Chapter C17 has undergone a major rewrite to include more test data on KLS-brand high pressure lip seals, and to include significantly more information on how to implement KLS seals in rotary equipment. Chapter D3 has been revised to make it clear that when possible, the installation path of a rotary shaft seal should be undercut to ease installation and reduce the risk of seal damage. Chapter D11 was revised to clarify the applicability of the chapter, to highlight the need to accommodate lubricant thermal expansion and describe an additional way to do so, and to provide many more details about designing piston-type lubricators for use with Kalsi-brand rotary shaft seals. Chapter D13 now includes a formula for estimating the pressure rise of a trapped seal lubricant due to thermal expansion. Figures in Chapter E1 were upgraded to show undercut installation paths for the rotary shaft seals, and to illustrate narrow extrusion gaps. Chapter E6 is new, and covers the topic of implementing Kalsi-brand rotary shaft seals as RCD seals.