Hogfors 465, 465KX, 46501KX, 46501, 46501KC Instructions For Installation, Use And Maintenance Manual

SILVER LINE

BALL V-SECTOR VALVE
INSTALLATION AND MAINTENANCE
MANUAL

465 series

20-04-2011

Page 1 of 4

BALL-SECTOR VALVE

465, 46501 SERIES

INSTRUCTIONS FOR INSTALLATION, USE AND
MAINTENANCE

1. Before installation.

Read these instructions carefully before starting the valve installation and start-up work.
During the receiving inspection, check that the valve and its accessories are free from any transportation-

induced damage.
During storage, the valve must be protected from dirt, rain, prolonged sunshine or sub-zero temperatures.
The protecting cap should be removed from the valve ends just before installation

2. Installation.

In outdoor installation, take care to drain the valve, as there is danger of freezing; especially the
space between the ball and valve body.

The valve should not be fitted at the lowest point of the pipework or in over low-level locations.
The pipework should be carefully cleaned before the valve is fitted. Remove any foreign matter that may

have got into the valve during transportation or storing.
Test the proper operation by opening and shutting the valve.

During installation, the ball sector must be close.

When installing the valve in the pipeline, the arrow on the body denotes the correct direction of flow.
After completion of flange welding, make sure that valve will not be under excess load, that flanges are

parallel and coaxial to each other.
After installation, flush out the pipework through.

3. Valve operation.

The ball sector valve is specially design for the controlling pulp and liquid flows.

4. Maintenance.

In normal conditions, these valves do not require maintenance.

Never remove the gland and sub-shaft cover while the valve is pressurised.

SILVER LINE

BALL V-SECTOR VALVE
INSTALLATION AND MAINTENANCE
MANUAL

465 series

20-04-2011

Page 2 of 4

The valve must be removed from pipe system and disassembled when performing the following
maintenance operations:

−

Inner cleaning of the valve.

−

Ball seat cleaning/lapping.

−

Bearing replacement.

−

Body joint replacement.

Disassembly

Always empty the valve before disassembling for maintenance operations or before returning it to the
manufacturer for service.

Remove the hand lever or actuator and mounting bracket.

When detaching and installing the actuator, take care not to hit or load the stem, as this will result
in damage to the ball sector.

−

Mark the position of the actuator to the valve.

−

Remove the end piece 2, secured by spot locking from the body 1.

−

For version with lock by kernel: use suitable chisel, and hit on several
spots to loose the end piece (see picture). After removing of end piece,
correct hitting points in body so that the valve can be assembled again.

−

For version with lock screw: unbolt 2 screws and remove the end piece.

−

KC: remove shims 15, 16, 17 and seat 24 (actually 2 shims only in use).

−

TC: remove shim 26, support ring 25 and seat 24.

−

Remove hexagonal socket screws 23, sub-shaft cover 8 and sub-shaft cover packing 18.

−

Remove cup spring 14 thrust bearing plate 10, lower thrust bearing 13.

−

Remove nuts 22, gland 6, O-ring 20 and spacer ring 7.

−

Pull out stem 4, and push sub-shaft 5 out through inside of the valve by supporting the ball at the
same time.

−

Remove V-ball 3.

−

Remove (from upper shaft 4) gland packing 19, thrust bearing ring 9, upper thrust bearing 12 and
shaft bearing 11.

Assembling

In assembly, follow the disassembly instructions in reverse order. Note the marking groove when joining
the upper shaft to the ball. Make sure all sliding and sealing surfaces are clean before assembling the
valve.

The Pampus material journal bearing is mounted so that the stainless steel reinforcing net is on the outer
surface.

The installation of the upper shaft bearing can be simplified by using special
bushing (see picture) or by attaching the bearing on the stem with a piece of tape,
which is removed after the stem and bearing have been partly pushed in place.

After assembling the shafts and linked parts, tighten nuts 22 evenly (gland 6) so
that packing is tight. Tighten hexagonal socket screws 23 (sub-shaft cover 8)
evenly. After the tightening, operate the valve several times ensuring smooth
operation.