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Manntek DCC Service Instruction

1” tank unit
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DCC Service instruction
1" tank unit
manntek.se

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Summary of Contents for Manntek DCC

  • Page 1 DCC Service instruction 1” tank unit manntek.se...
  • Page 2 2 of 8 - Version 170517...
  • Page 3 1” : SS ATERIAL ARTS NEEDED FOR SERVICE Spare part kit and O-ring kit (see page 4) YPE OF CONNECTION Threaded and Flanged couplings have the same service instruction. The cap is part of the tank unit. ERFORM A SERVICE If leaking According to application service plan LEASE NOTE...
  • Page 4 AINTENANCE AND SERVICE INSTRUCTION Always depressurise the system and rinse off the parts before beginning any maintenance work. Use protective goggles. Use tweezers and wear gloves which are sufficient for cryogenic applications. Do not touch adjacent parts with unprotected hands. Rinse off the parts once again before starting the “daily inspection”...
  • Page 5 Unscrew the three screws (pos.25, see drawing page 3) in the spindle steering. Press down the spindle steering and turn it free. Release it carefully. Piston guide is spring loaded. Risk of injury. Using our special tool makes work easier and therefore increases safety.
  • Page 6 To insert the piston back again it should be put in a relaxing position in the valve seat Put the spring (pos.7), spring cap (pos.6) and the spindle steering (pos.4) back into the body. Press down the spindle steering and turn, to fix it in its position.
  • Page 7 Replace the sealing ring (pos. 22) by a new one. Make sure that the sealing surface in the bottom doesn’t get scratched, not the seal either when mounting. If needed replace the sealing ring in the dust cap by a new one. Check that the spring and the rollers of the cap are in working properly.
  • Page 8 TEST PROCEDURE After each service a tightness test of each coupling is mandatory. The following test parameters are in accordance with EN12266 and EN14432: Test procedure Test pressure Acceptance criteria No visually detectable Tightness test (liquid 6 bar +/- 1 bar leakage for the duration of nitrogen) the test...

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