Translation of the original operating instructions
Type 327
© 1994 - 2022 SED Flow Control
56
BA220002 Version:
a
Vo
rl
ag
e
: d
o
k360 (
c)
5.4.1. Connection butt weld ends
Follow the laws, directives and regulations for welding which are valid in your country.
→
Disassemble the valve before welding. See chapter 5.3.2.
→
Weld in valve body and cool down. If necessary, weld in in self-draining position, see marking
on valve body. Polish surface if needed.
→
Assemble actuator and diaphragm on valve body, see chapter 5.3.1.
5.5. Implementation
Ensure correct installation before implementation. Check tightness in clamping area of actuator,
diaphragm and valve body. Also check the valve for function. Control air lines have to be installed
without kinks and stressless. Take care for correct connection of control air, see chapter 5.2.
Warning
Aggressive chemicals! Chemical burns! Check the tightness of the media connections before start-up! Leak test
only with suitable protective equipment.
Attention
Prevent against leakage! Provide protective measures against exceeding the maximum permissible pressure
due to possible pressure surges (water hammer).
Before cleaning or commissioning the system:
For new equipment and after repairs, flush piping system with valve fully open (to remove harmful foreign
matter).
Cleaning:
The operator of the plant is responsible for selecting the cleaning medium and carrying out the procedure.
For commissioning of the positioner used, see the corresponding installation and operating instructions under
1.1
