Service Instructions - SPX FLOW APV DELTA DA3+ Instruction Manual

APV
APV_DA3+_ATEX_UK-0_022018.indd
13
8
7
valve housing
Double seat valve
DELTA DA3+ - ATEX
Instruction manual: UK - rev. 0
13. Service Instructions
The item numbers refer to the spare parts drawing
DA3 - DN40 - 100 ; 1,5 "- 4" - Ex II -/2G IIB TX
RN ATEX 053.73
13.1. Dismantling from the line system
Before start of service the operator has to make sure that an
explosive atmosphere does not exist (detection/measurement of
potential concentration of hazardous substances).
Alternatively, use spark-resistant tools!
1. Shut off the line pressure in the product and cleaning lines,
discharge the pipes if possible.
2. Remove the pneumatic air line and flushing connection lines.
3. Release the nut of the proximity switch holder (13) and pull off the
proximity switch.
4. Remove the hexagon nuts (7) at the spring cylinder (8).
5. Screw in one flange screw into the threaded bore of the spring
cylinder to lift the complete valve insert. Do not remove the screw
which will help to re-install the valve insert.
6. Carefully lift the valve insert vertically out of the valve housing.
UK
20