GEA Aseptomag GD, Operating Instruction

Page: 46 / 66

TVE & TVPV
Fig.40: Removing seal(s)
TVT Divisible valve disc, valve seat seal TEFASEP
TVE Divisible valve disc, valve seat seal EPDM (form seal)
TVPV Divisible valve disc, valve seat seal PTFE reinforced (form seal)
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The valve seat seal has been removed.
10.9.2 Fitting the Divisible Valve Seat Seal
Tools required:
• Torque wrench with wrench socket
• Vice with smooth jaws or equivalent type of protected jaws
• Food-grade lubricant PARALIQ GTE 703
Carry out the following steps:
1.
The screwed-on valve seat seal is fitted in the reverse order of removal, see
Section 10.9.1, Page 45.
! Prepare thermoplastic valve seat seals (TEFASEP, PTFE, ...) in the heater,
see Section 10.8.2, Page 43.
! Valve seat seals made of hard sealing materials must not be greased.
! A light film of food-grade lubricant must be applied to elastomer valve seat
seals before fitting.
! Note table “Torques for divisible valve discs”, see Section 10.9.3, Page 47.
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The valve seat seal has been fitted.
Hint!
Wetting elastomer gaskets is not permitted when they are used in
ATEX applications!
Maintenance
Removing and Installing the "Divisible System" Valve Seat Seal
430BAL012727EN_1
46 03.01.2018