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(1)
Valve housing
(2)
Seat
(3)
Cone set with stud
(4)
Valve spindle
(4a)
Quick closing valve spindle
(5)
Base ring
(6)
Gland packing
(7)
Stuffing box
(8)
Screw cap
10.5 Commissioning
Before every commissioning, re-commissioning, repair or conversion,
ensure proper completion of all installation/assembly works and that
valve has corrected functioning position.
Check specifications of material, pressure and temperature!
Danger
•
Open shutoff device of valve without self-closing ball on steam and water holding boiler
studs counterclockwisely as far as it will go (backseat).
•
Slightly open shutoff device of valve with self-closing ball on steam and water holding
boiler studs counterclockwisely to prevent that ball closes valve passage (see fig. 1).
Fully open spindle after accomplished pressure balance (backseat).
•
Compare function of level gauge and water level height with the other safety fittings.
(9)
Sealing ring
(10)
Upper part
(10a)
Upper part (quick closing)
(11)
Handwheel
(12)
Ball
(13)
Cone set without stud
(14)
Valve spindle (inclined part)
(15)
Hand lever
(16)
Hexagon nut
27
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