Holding in Company

Spirax-Sarco Engineering PLC
10 November 2000


                  DEALINGS BY SUBSTANTIAL SHAREHOLDERS


1)   NAME OF COMPANY

SPIRAX-SARCO ENGINEERING PLC


2)   NAME OF SHAREHOLDER HAVING A MAJOR INTEREST

PRUDENTIAL PLC


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

PRUDENTIAL PLC


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

SEE LETTER BELOW DATED 9TH NOVEMBER 2000


5)   Number of shares/amount of stock acquired.

NOT STATED


6)   ( N/A %) of issued Class

NOT STATED


7)   Number of shares/amount of stock disposed

NOT STATED


8)   ( N/A %) of issued Class

NOT STATED


9)   Class of security

ORDINARY


10)  Date of transaction

NOT KNOWN


11)  Date company informed

9.11.00


12)  Total holding following this notification

5,612,653

               
              
13)  Total percentage holding of issued class following this notification

7.63%


14)  Any additional information



15)  Name of contact and telephone number for queries

AMANDA NOONAN
MERRILL LYNCH 
020 7772 1281


16)  Name and signature of authorised company official responsible for 
     making this notification     MRS F RICKETTS

     Date of Notification   10TH NOVEMBER 2000


Letter to Spirax-Sarco Engineering plc


Companies Act 1985
Disclosures of Interest in Voting Shares

In compliance with Part VI of the above Act, as amended, I inform you that, as a
result of recent sales, the notifiable interest of Prudential plc, in the
following class of voting share in your company, is now as specified below.


Letter from 
for and on behalf of Prudential plc



                                NOTIFIABLES

                              Position Report

                       Client Fund Reporting Group:  PPMB

                      Shares in   Registered               Current    Holding
SPIRAX-SARCO ENG         Issue       Holder               Holding         %
0834704 ORD GBP0.25  

                     73,592,026    PRUCLT HSBC GIS NOM   4,742,787      6.44
                                   (UK) PAC AC     
                                   PRUCLT HSBC GIS NOM
                                   (UK) PPL AC             869,866      1.18
                     73,592,036                          5,612,653      7.62

                                                                        7.63%