4.- MAINTENANCE
The valve must not undergo any modifications without a previous agreement with ORBINOX.
ORBINOX shall not be liable for any damages that may arise due to the use of non original parts or
components.
To avoid personal injury or damage to property from the release of process fluid:
-Those in charge of handling and maintenance of the valve must be qualified and trained in
valve operations.
-Use appropriate personal protection equipment (gloves, safety shoes, etc).
-Shut off all operating lines to the valve and place a warning sign.
-Isolate the valve completely from the process.
-Release process pressure.
-Drain the process fluid from the valve and insert the open-closed lockout (if the valve has
it).
-According to
EN 13463
EN 13463EN 13463
EN 13463-
--
-1 (15),
1 (15), 1 (15),
1 (15), during installation and maintenance operations, use hand
tools
(non electric)
(non electric) (non electric)
(non electric) with Working Allowance.
The only maintenance required is to change the packing seal (4) and the two rubber sleeves (3) as well
as the use of the grease nipples (7) for regular lubrication.
The life of these elements will depend on the working conditions of the valve such as: pressure,
temperature, abrasion, chemical action, number of operations, etc.
To allow optimal operation, the lower part of the valve, accessible through the splashguard (11) should
be cleaned regularly.
If the gate is brushed and cleaned regularly, the wear of the sleeves (3) can be minimised.
4.1.
4.1. 4.1.
4.1. -
--
-
Replacement of the packing seal (4):
Replacement of the packing seal (4):Replacement of the packing seal (4):
Replacement of the packing seal (4):
Should one or both sleeves (3) be damaged, the slurry might injure maintenance personnel
during this replacement. or that reason, the valve should be removed first from the pipeline.
1) Place the valve in close position and insert the open-closed lockout (if the valve has it).
2) Remove the gate guards (for automatically actuated valves only).
3) Release the spindle or stem (8) from the gate (2).
4) Loosen the screws of the yoke (6), extract the open-closed lockout (if the valve has it) and
remove the yoke (without removing the actuator).
5) Loosen the bolts of the gland follower (5) and remove it.
6) Remove the gate (2) and the old packing seal (4) and clean the stuffing box.
7) Insert the new packing seal (4) lubricated (put silicone-based grease inside of the seal).
Radiused edges go in first.
8) Insert the gate (2) and tighten the gland follower (5).
9) Reinstall the yoke (6) (with the actuator).
10) ix the stem (8) to the gate (2).
11) Reinstall the gate guards.
12) Carry out some operations with a loaded circuit.
WG with conventional leak proof packing (optional): (See page 14)
Depressurise the circuit and place the valve in close position.
1) Remove the gate guards (for automatically actuated valves only).
2) Release the spindle or stem (8) from the gate (2).
