
Regulators repair and maintenance
January 2009
Rev. ELL.BAL/B Ed. C /12
44
2
nd
stage Ellipse Balanced:
assembling
•
Push the adjustment knob into its seat, overcoming the friction induced by the O-ring on
the valve body side.
•
Screw the knob including the screw into the valve body, paying particular attention to line
up the plastic thread perfectly with the metal one of the valve body:
do not
insert the knob
inclined in order not to damage the plastic connecting thread.
Note: the adjustment knob thread, placed between the two O-rings, proves
watertight.
A
rich lubrication ensures an easy smooth longlasting working of the knob.