Watson-marlow 825 User Manual download pdf (Page 9)

Watson-Marlow 825 and 840 User Manual 9

13 SIP

Observe a 1m safety area to avoid possible scalding if a tube burst occurs. Monitor

the process continuously .

If a tube burst occurs shut down the process, do not touch the pumphead until a 10

minute cooling period has been observed. Ensure a 15 minute acclimatisation peri-

od is observed before running the pump following SIP.

Maximum permissible SIP process temperature is 135 C.

14 High pressure operation

 Ensure rocker mechanisms are locked to avoid premature wear.

 Observe a 1m safety area to avoid contact with high pressure jets in the case of

a tube burst.

 Please note that only tubing elements and not continuous lengths of tubing can be

used for higher pressure operation.

 No quick connectors are to be used with element tubing during high pressure

operation.

15 Tubing

No length of tubing which has previously been used as a pumping element should

be used in the transfer section due to the fact that it may be in a weakened condi-

tion.

16 Materials of construction

Description Material Finish

Pumphead body Aluminium Epoxy polyester powder coated white finish

Pumphead door Aluminium Epoxy polyester powder coated white finish

Pumphead rotor Aluminium Epoxy polyester powder coated

Rollers Stainless steel 316

Frame Stainless steel 304

Connectors Stainless steel 316

Door fixings High tensile steel

Motor fixings High tensile steel

Frame fixings Stainless steel

Rocker locking

knob, 840

Polypropylene

Rocker locking

knob, 825

Stainless steel

Ensure that the pumphead door is closed and tool-

locked before SIP cleaning

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Watson-marlow 825 User Manual Page 9