ARI Armaturen STOBU PN63-160 EN - Manual (Page 4)

Page 2-4 Rev. 0040102002 0213
Operating and installation instructions
STOBU
®
PN63-160
4.2 Operating principles
The valve is closed by turning the hand wheel clockwise (valve plug/seating function).
The valve stem is sealed by stuffing box.
Tighten the stuffing box if required.
The stopf valves are especially suitable for actuation by pneumatic or electrical actuators.
ATTENTION !
- Do not use tools to increase the torque on the hand wheel.
- The necessary fire-protection measures depend on the medium and must be
specified by the operator.
ATTENTION !
- The drive shaft is partially open and there is a crushing hazard!