17
APV_RGMS4_ATEX_UK-1_122018.indd
UK
Modulating valve with supported producut diaphragm
APV DELTA RGMS4 - MFS + MFH ATEX
Instruction manual UK-1
APV
12. Service Instructions
The pos.-No. refer to the corresponding spare parts
see spare parts list:
DN design
RN ATEX 01.170.9
12.1.
Dismantling from line system
Before start of assembly the operator must make sure that an
explosive atmohsphere does not exist (detection/measurement of
potential concentration of hazardous substances).
Alternatively, use spark-resistant tools!
1.
Shut off line pressure and discharge lines if possible
2.
Shut off and disconnect air control line
3.
Shut off control power and disconnect connecting lines.
4.
Loosen fastening screws (9) and take the valve insert with
positioner and diaphragm actuator out of the housing (1).
5.
Loosen hex. screws (6) and nuts (7) of lateral flange connection.
6.
Release hex. screws (4) of the lower flange/housing connection.
7.
Remove housing from the line.