Instructions
PCVD, PCVSAD
6 | © Danfoss | 2016.05
VI.JA.C3.5B
pin only
weld
do NOT
weld
1
2
6 Assembly
6.1 Prior to Assembly:
Depressurized system before
any assembly work !
CAUTION!
• Clean pipeline system.
• Install strainer in front of the controller.
• Install shut-off units in front of and behind
the controller.
6.2 Installation Position
• Installation is only permitted in horizontal
pipelines with the actuators hanging in a
downward position.
6.3 When installing observe:
• Observe direction of flow.
• Design with welded ends:
• Loads on the valve body and the throttle
element by the pipes are not permitted.
6.4 Impulse Tube Installation
1. See installation scheme, section 6.6.
2. For CU pipes Ø 10 × 0.8, insert sockets
1
on
both sides.
3. Care for correct position of the cutting
rings
2
.
6.5 Insulation
The diaphragm actuators must not be insulated
when insulating system parts.
4. Press impulse tube into the threaded fitting
up to its stop.
5. Tighten union nut, torque 40 Nm
6. Dismount again and check the position of
the cutting rings.
