Holding in Company

Spirax-Sarco Engineering PLC
2 January 2001

                  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 27TH DECEMBER 2000

5)   Number of shares/amount of stock acquired.

NOT STATED

6)   (%) of issued Class

NOT STATED

7)   Number of shares/amount of stock disposed

NOT STATED

8)   (%) of issued Class

NOT STATED

9)   Class of security

ORDINARY

10)  Date of transaction

NOT KNOWN

11)  Date company informed

27.12.00 (RECEIVED 2.1.01 AS OFFICES CLOSED)

12)  Total holding following this notification

4,305,653
                          
13)  Total percentage holding of issued class following this notification

5.8507%

14)  Any additional information



15)  Name of contact and telephone number for queries

AMANDA NOONAN
0207 772 1281

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

     Date of Notification ..2ND JANUARY 2001 ..

LETTER TO:  SPIRAX-SARCO ENGINEERING PLC

DATED:  27 DECEMBER 2000

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:  TOM DOWLER
              FOR AND ON BEHALF OF PRUDENTIAL PLC


                              NOTIFIABLES
                              POSITION REPORT
                              CLIENT FUND REPORTING GROUP:  PPMB

SHARES IN ISSUE:   73,592,036

                            REGISTERED HOLDER                  CURRENT   HOLDING
                                                               HOLDING      %
SPIRAX-SARCO ENG  
  ORD GBP0.25               PRUCLT HSBC GIS NOM (UK) PAC AC    4,129,940   5.61
                            PRUCLT HSBC GIS NOM (UK) PPL AC      175,713   0.23
                                                               4,305,653   5.85