Servicing intervals
Component
Measure
Valve with elastomer valve seat seal such as
EPDM, FKM, HNBR
Valve with
TEFASEP® gold
valve seat seal
Maintenance activities to be performed once a month
Valve
Visual check without
dismantling
Visual check without
dismantling
Maintenance activities to be performed after 3 months
Product contact seals
Media temperature
60...130 °C
(140...266 °F)
Media temperature
< 60 °C
(< 140 °F)
Check of mechanical
parts and visual
inspection of condition
Seal replacement
Mechanical & visual
inspection of condition
Internal part with stem
diaphragm
Check of mechanical parts and visual
inspection of condition
Check of mechanical
parts and visual
inspection of condition
Actuator
Function check
Function check
Valve
Function check
Function check
Feedback
Function check
Function check
Pneumatic
connections
Check of mechanical parts and visual
inspection of condition – leak test
Check of mechanical
parts and visual
inspection of condition
– leak test
Electrical connections
Visual inspection
Visual inspection
Maintenance activities to be performed once a year
Product contact seals
Seal replacement
Seal replacement
Internal part with stem
diaphragm
Check of mechanical parts and visual
inspection of condition – replacement of stem
diaphragm
Check of mechanical
parts and visual
inspection of condition
– replacement of stem
diaphragm
Actuator
Check of mechanical parts and visual
inspection of condition – function test
Check of mechanical
parts and visual
inspection of condition
– function test
Valve
Check of mechanical parts and visual
inspection of condition – function test
Check of mechanical
parts and visual
inspection of condition
– function test
Maintenance
Servicing intervals
430BAL013307EN_8
44
04.08.2022
Summary of Contents for D-tec D
Page 66: ...Fig 39 Maintenance Assembling the valve 430BAL013307EN_8 66 04 08 2022...
Page 69: ...Fig 41 Maintenance Assembling the valve 430BAL013307EN_8 04 08 2022 69...
Page 85: ...Fig 55 Housing Parts list D tec double chamber valve type D DV 430BAL013307EN_8 04 08 2022 85...
Page 91: ...Fig 58 hard seal Parts list D tec valve insert D DV SV NC NO 430BAL013307EN_8 04 08 2022 91...
Page 99: ...Fig 61 Dimension sheet double chamber valve type D DV 430BAL013307EN_8 04 08 2022 99...
Page 105: ...Appendix 430BAL013307EN_8 04 08 2022 105...
Page 106: ......