Recommendations For Installation; Commissioning/Decommissioning; Maintenance/Repair; Safety Instructions - KSB BOAX-B Instructions De Service

7.4

Recommendations for installation

Before assembly
- - Verify that pipeline flanges are free from metallic chips and weld
splatter.
- - Verify that pipeline flanges are located on the same centreline and
are parallel.
- - Verify that inside diameter of pipeline flange is in accordance with
the minimum and maximum diameters given by the manufacturer.
- - Verify that nothing hinders the complete moving of the disc during
opening or closing, in particular at the internal weld seams or at the
pipe ends.
- - Pull apart the pipeline flanges to allow valve insertion without
damaging the elastomer liner of the valve.
During assembly
- - Place the disc as spaced apart as possible from the closing
position, but without that disc protrudes past the valve' s body.
- - Spread the two pipe flanges to obtain sufficient clearance between
flange face and valve seat cheeks.
E + 40 mini
Minimum clearance : E + 40mm
E : Face to face valve
(refer to the type series booklet)
- - Insert valve between pipeflanges and center using several tie- -rods.
- - Screw up progressively the nuts until metal to metal contact is
achieved between the valve body and pipeline flanges, by making
sure the good centering of the body compared with the flange is
maintained.
- - Operate the valve several times to ensure no valve disc obstruction.
32
7.5
standards), also for equipment in hazardous locations, must be
observed.All electrical equipment such as actuator, switchboard,
magnetic valve drive, limit switch etc. must be installed in floodproof
dry locations.Voltage and frequency must match the valves stated on
the identity plate.
8
8.1
8.1.1
Prior to commissioning the valve, the pressure, temperature and
material data stated on the valve should be compared to the actual
operating conditions in the piping system to check whether the valve
can withstand the loads occurring in the system.
the highest admissible pressure. Adequate precautions should be
taken.In new pipe systems and especially after repair work, the
system should be flushed with the valves fully open to remove solids,
e.g. weld beads, which may damage the seats.
8.1.2
The position of the disc is indicated by the pointer of the actuator or by
handle lever. The valves are closed by turning in the clockwise
direction (top view) and opened in the counterclockwise direction.
E
8.1.3
The following functions should be checked:Before commissioning,
the shut-off-function of the valves should be checked by repeated
opening and closing.
8.1.4
Adjustable end stops and torque limiter of actuators have been
adjusted in factory.
8.2
During extended shutdown periods, liquids liable to change their
condition due to polymerization, crystallization, solidification etc. must
be drained from the piping system. If necessary, the piping system
should be flushed with the valves fully open.
9.
9.1
DN £ 200 : no maintenance
Maintenance and repair work may only be carried out by skilled and
qualified personnel.
For all maintenance and repair work, the safety instructions listed
below and also the general notes in section 2 must be
observed.Always use suitable spare parts and tools, even in case of
emergency, otherwise correct operation of the valves cannot be
assured.
Actuated valves
Electrical cables may only be connected by qualified personnel.
The applicable electrical regulations (e.g. IEC and national

Commissioning/Decommissioning

Commissioning
General
Possible pressure surges (water hammer) must not be exceed
Operation
Functional Check
Actuated valves
Decommissioning

Maintenance/Repair

Safety Instructions