Transaction in Own Shares

Spirax-Sarco Engineering PLC
07 April 2006

Spirax-Sarco Engineering Plc

7 April 2006

Transaction in Own Shares

Spirax-Sarco Engineering Plc announces that it has today purchased through
Merrill Lynch International 20,000 ordinary shares at a price of 949.25 pence
per share.

The purchased shares will all be held in treasury.  Following the above
purchase, Spirax-Sarco Engineering Plc will hold 333,000 ordinary shares in
treasury.

The total number of ordinary shares in issue (excluding shares to be held in
treasury) is 76,834,682.



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