Holding(s) in Company

Spirax-Sarco Engineering PLC
11 January 2006

                                    SCHEDULE 10

                  NOTIFICATION OF MAJOR INTERESTS IN SHARES



1. Name of company


SPIRAX-SARCO ENGINEERING PLC



2. Name of shareholder having a major interest


ARNHOLD AND S. BLEICHROEDER ADVISORS, LLC



3. Please state whether notification indicates that it is in respect of holding
of the shareholder named in 2 above or in respect of a non-beneficial interest
or in the case of an individual holder if it is a holding of that person's
spouse or children under the age of 18


IN RESPECT OF CLIENTS WHOSE PORTFOLIOS ARE MANAGED BY THE SHAREHOLDERS NAMED IN 
BOX 2 ABOVE



4. Name of the registered holder(s) and, if more than one holder, the number of
shares held by each of them


SEE BELOW



5. Number of shares / amount of stock acquired


NOT STATED



6. Percentage of issued class


NOT STATED



7. Number of shares / amount of stock disposed


NOT STATED



8. Percentage of issued class


NOT STATED



9. Class of security


ORDINARY



10. Date of transaction


9.1.06



11. Date company informed


11.1.06



12. Total holding following this notification


5,379,883



13. Total percentage holding of issued class following this notification


6.99%    (SHARE CAPITAL 76,956,907)



14. Any additional information






15. Name of contact and telephone number for queries


FAY RICKETTS, TEL. [phone]



16. Name and signature of authorised company official responsible for making
this notification


FAY RICKETTS



Date of notification


11.1.06



The FSA does not give any express or implied warranty as to the accuracy of this
document or material and does not accept any liability for error or omission.
The FSA is not liable for any damages (including, without limitation, damages
for loss of business or loss of profits) arising in contract, tort or otherwise
from the use of or inability to use this document, or any material contained in
it, or from any action or decision taken as a result of using this document or
any such material.







Letter to Spirax-Sarco Engineering plc

dated January 10, 2006



Mr Smith



Amended Disclosure of Substantial Shareholdings Under the Companies Act of 1985



As of January 9, 2006 Arnhold and S. Bleichroeder Advisers, LLC ('ASBA') held,
in the aggregate, a total of 5,379,883 shares of Spirax-Sarco Engineering, Plc.
Those shares represent 6.99% of the 76,923,407 outstanding shares of the
company.



The registered holders of the shares managed by ASBA on January 9, 2006 are
given below.


Arnhold and S. Bleichroeder Diversified International Equity Fund        209,700
City of Hartford Municipal Employees' Retirement Fund                     14,718
Ewing Marion Kauffman Foundation                                          42,935
First Eagle Overseas Fund                                              4,250,000
First Eagle Overseas Variable Fund                                       122,020
Genesee County Employees' Retirement System                               25,000
MacArthur Foundation Trust                                                69,510
Raytheon Pension Fund                                                     57,530
Schlumberger Limited                                                      49,510
SoGen International SICAV                                                382,660
Utah Retirement Systems                                                  100,000
United Food and Commercial Workers' Union                                 56,300



I request that you make the information disclosed in this notice public by
notifying the London Stock Exchange.  I you have any questions, please contact
me by telephone, at 212-698-3226, or by electronic mail at
[e-mail].



Sincerely,

Lisa Basile

Compliance Officer




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