KSB ECOLINE VA 40 User manual

Operating instructions
V-707090.9/01-EN
1
Globe Valve with Gland Packing
ECOLINE VA 40
Non-return Valve
ECOLINE RA 40
Y-type Strainer
ECOLINE FY 40
PN 10-40
DN 15-300
Carbon Steel
Term No.
Content
Page No.
1
Declaration of Conformity
3
2
General Information
5
3
Safety
5
3.1
Marking of instruction in the manual
6
3.2
Non-compliance with safety information
6
3.3
Safety awareness
6
3.4
Safety information for the operator /user
6
3.5
Safety information for maintenance, inspection and installation work
6
3.6
Unauthorized modification and manufacture of spare parts
6
3.7
Unauthorized modes of operation
6
4
Transport and storage
7
4.1
Transport
7
4.2
storage
7
5
Description / Related Documents
7
5.1
Marking
7
5.2
Drawings / product literature
8
5.3
List of components
8
5.4
Function
9
6
Installation
9
6.1
General
9
6.2
Installation position
10
6.3
Installation instruction
11
6.4
Valves with actuator
11
6.5
Insulation
11
7
Commissioning / Start-up / Shutdown
11
7.1
Commissioning/ start up
11
7.2
Shutdown
12
8
Service / Maintenance
12
8.1
Safety instruction
12
8.2
Maintenance
13

2
8.3
Valves reassembly
13
9
Trouble-shooting
13
9.1
General
13
9.2
Faults> Remedy
13

EC Declaration of Conformity
Herewith we, KSB Italia S.p.A.
Via M. D’Azeglio, 32
20863 Concorezzo MB
Italy
Declare that the valves listed below satisfy the safety requirements laid down in the Pressure Equipment Directive 2014/34/EU
(PED).
Globe, Non-return Valve and Strainer
ECOLINE VA PN 40, DN 15-300
ECOLINE RA PN 40, DN 15-300
ECOLINE FY PN 40, DN 15-300
Suitable for Fluids in Groups 1 and 2
Conformity assessment procedure Module H
Name and address of the notified body TÜV Industrie Service Gmbh
Westenstrasse. 199
80686 Munchen
Identification number of the notified body No. 0036
Certificate No. DGR-0036-QS-1066-14
Reference standards and codes EN 10213-2:1999 EN 1661:2000, EN 1663-2000,
EN 24017:1998, EN-ISO 898-1:2001, EN-ISO 3506-1:2001,
EN 24032:1999, EN 20898-2:1998, DIN EN 1092-1:2002,
EN 1092-2, , EN 1092-1, EN 13709, EN 12516, EN 12266–1
Valves with a nominal pipe size below and including DN 25 fall under Article 4, section 3, of the Pressure Equipment Directive
2014/34/EU. They must bear neither the CE-label nor the number of the notified body.
Oscar Bellotto
Operations Manager
(this was prepared electrically and is valid without signature)
Description of valve types

Declaration for the purpose of EC Directive 2014/68/EU (ATEX)
Herewith, we declare that valves of the series:
ECOLINE VA 40
ECOLINE RA 40
ECOLINE FY 40
Without electric or pneumatic actuators, as described in the relevant type series booklets, do not have their own potential
source of ignition and are thus not covered by article 1 of the EC Directive 2014/68/EU.
Components such as electric or pneumatic actuators as well as limit switches are, as a rule, covered by scope of the Directive
described in Article 1, 2014/68/EU, and shall be subjected to a conformity assessment procedure. Evidence of conformity must be
furnished (for ex. EC declaration of conformity).
Applied harmonized standards and EC Directives
EN 13463-1, EN 13463-5, EN 1127-1
EC Directive 2016/68/EU
Oscar Bellotto
Operations Manager
(this documents have been prepared electrically and is valid without signature)

Operating instructions
V-707090.9/01-EN
5
2 General information
This operating manual applies to all KSB globe valves,
non-return valve and strainers as described in section 5,
unless reference is made to other operating manuals in
individual cases.
Only correct installation, maintenance or repair will ensure
smooth operation of the valves
The manufacturer shall not accept any liability if the
instruction set forth in this manual is not complied with
The design, manufacturer and testing of KSB valves are
subject to a QM system to DIN EN ISO 9001 as well as the
European Pressure Equipment Directive 97/23/EC.
Compliance with these requirements, however, is based on
normal, static loading, e.g.
- Flow velocities typical of the fluid handled
- Typical temperature gradients
Such measures may, for example, influence
- Material selection
- Wall thickness
- Seal selection
- Protection of valve areas prone to wear
- Prevention of excessive pressures and temperatures
- Special designs for control operation, etc.
Valves exposed to creep-rupture conditions have a limited
service life and have to meet the applicable regulations
stipulated in the technical codes. In case of corrosion or
erosion or other circumstances that could result in a
reduction of the valves’wall thickness, they must be
substituted as to avoid the risk of leakage or structural failure
The valves must not be operated outside the
permissible operating range. The limits are
indicated on the name plate or currently applicable type
series booklet, the pressure-temperature ratings, in particular,
must not be exceeded. Operation of valves outside the
above-mentioned conditions may result in overloads which
may damage the valves
The type series booklet can be found at www.ksb.com --
Product catalogue
Non-observance of this warning may cause
personal injury and damage to property, for
example:
- Injuries resulting from fluid leakage (cold/hot, toxic
Under pressure, etc.)
- Impairment of the valves’function or its destruction
The descriptions and instructions set forth in this manual
refer to the standard models but are also applicable to
variants.
For actuated valves, the operating manual of the actuator
must be adhered to without fail.
These operating instructions do not take into account:
- Any eventualities and events which might occur during
installation, operation and maintenance.
- Local regulations; the operator must ensure that such
regulations are strictly observed by persons dealing with
the valve, including the personnel called in for
installation.
The valve must only be operator by qualified
personnel.
Incorrect operation of the valve may have a substantial
impact on the entire system, for example:
- Leakage of the fluid handled,
- System / machine brought to a standstill
- Impairment / reduction / increase of the system’s/
machine’s function / effect.
For any queries you may have or in the case of damage,
please contact your nearest KSB sales office.
For any queries and repeat orders, in particular for
purchasing spare parts, please specify the type series /
variant details, the order number, as well as the year of
construction, if possible.
The technical data (operating data) of the valves are
specified in the product literature (type series booklet, valve
characteristic, chemical resistance chart) of the respective
valve (cf. section 5).
3 Safety
This operating manual contains fundamental information
which must be complied with during installation, operation,
service and maintenance.
Not only must the general safety information laid down in this
chapter on “Safety”be complied with, but also the safety
information outlined under specific headings.
Caution
Caution

6
3.1 Marking of instructions in the manual
The safety information contained in this manual whose
non-observance might cause hazards to persons are
specially marked with the general hazard sign, namely
Safety sign in accordance with DIN 4844--- W9), The
electrical danger warning sign in is
Safety sign in accordance with DIN 4844--- W8)
The word
Is used to introduce safety information whose
non-observance may lead to damage to the valve and its
functions,
Instructions attached directly to the valve (e.g. nominal
pressure) must always be complied with and be kept in a
perfectly legible condition at all times
3.2 Non-compliance with safety information
Non-compliance with safety information can jeopardise the
safety of personnel, the environment and the valve itself.
Non-compliance with these safety instructions will also lead
to forfeiture of any and all rights to claims for damages.
In particular, non-compliance can, for example, result in:
- Failure of important valve / system functions
- Failure of prescribed maintenance and servicing
practices
- Hazard to persons by electrical, mechanical and
chemical effects.
- Hazard to the environment due to leakage of hazardous
substances.
3.3 safety awareness
It is imperative to comply with the safety information
contained in this manual, the relevant national health and
safety regulations and the operator’s own internal work,
operation and safety regulations.
3.4 safety information for the operator / user
Any hot or cold parts of the valve (e.g. body components or
hand wheel) that could pose a hazard must be equipped with
a guard by the operator
Guard which are fitted to prevent accidental contact with
moving parts (e.g. coupling) must not be removed whilst the
unit is operating.
KSB recommends that leakages (e.g. at the stem seal) of
hazardous fluids (e.g. explosive. toxic, hot) be contained so
as to avoid any danger to persons and the environment. All
relevant laws must be heeded.
Electrical hazards must be eliminated. For details please
refer to VDE regulations and the safety regulations laid down
by the local energy supply companies, for instance.
3.5 safety information for maintenance, inspection
And installation work
The operator is responsible for ensuring that all maintenance,
inspection and installation work be performed by qualified
personnel.
As a rule, work on the valve must only be carried out after the
valve has temperature must be below the vaporisation
temperature limit in all areas in contact with the fluid.
Work on (actuated) valve must be carried out only during
standstill. The shutdown procedure described in the manual
for taking the valve out of service must be adhered to without
fail.
Immediately following completion of the work, all safety
relevant and protective devices must be reinstalled and/or
re-activated
Please observe all instructions set out in section 7,
Commissioning / start-up, before returning the valve to
service.
3.6 Unauthorized modification and manufacture of
spare parts
Modifications or alterations of the valve supplied are only
permitted after consultation with the manufacturer. Original
spare parts and accessories authorised by the manufacturer
ensure safety. The use of other parts can invalidate any
liability of the manufacturer for consequential damage.
3.7 Unauthorized modes of operation
The warranty relating to the operating reliability and safety of
the valve supplied is only valid if the equipment is used in
Caution

7
accordance with its designated use as described in section 2
“General” of this manual. The limits stated in the technical
literature must not be exceeded under any circumstances.
4 Transport and storage
The valves are delivered ready for operation, the obturator is
in “closed”position and the line connection ports are closed
with suitable material (caps, plugs, covers).
4.1 Transport
Suitable precautions shall be taken to prevent damage
during transport
The valves must never be suspended by the
hand wheel or by the actuator, if any
For transporting large valves, ropes shall be attached to the
yoke arms or to the covers flange.
Valves with actuators shall be transported by means of ropes
attached to the connection ports and yoke arms, taking into
account the centre of gravity.
Use the lifting lugs provided
For the valve weights refer to the relevant manufacturer
product literature (type series booklet-->section 5.2, order
confirmation).
After delivery and prior to installation, check the valve for
potential damage acquired in transit.
4.2 Storage
Storage / interim storage of the valves must ensure that even
after a prolonged period of storage the valves function is not
impaired. The following requirements must be met:
- Storage is performed with valve in the closed position (to
protect the seat / disc contact faces against damage)
- Measure are taken to protect the valves against dirt,
humidity, frost and corrosion (e.g.by using foils or caps,
indoor storage)
5 Description / Related documents
5.1 Marking
The valves are marked in accordance with the Pressure
Equipment Directive 97/23/EC and the pertinent standards
on valve types/design, as well as TRD 110 (German Steam
Boiler Regulations) and TRB 801 No.45 (German Pressure
Vessel Regulations)
Marking includes as a minimum:
- Manufacturer
- Year of construction
- Type or order No.
- DN
- PN or max. permissible pressure / temperature
- Material
The CE marking on the valve means it is in conformity with
the European
Pressure Equipment Directive 2014/34/EU
PN
DN
≤25
32
40
50
65
80
100
125
＞150
10
N.A.
CE
16
25
40
5.2 Drawing / product literature
Caution

8
The sectional drawings below provide examples of the general design / configuration of the valves. For illustrations relating to
specific valve series and further information please refer to the respective type series booklets.
Type
DN
PN
Material
Type series booklet No.
Description
ECOLINE VA
15-300
10-40
1.0619
V-707090
Globe valve with packing seal
ECOLINE RA
15-300
10-40
1.0619
V-807090
Non-return valve
ECOLINE FY
15-300
10-40
1.0619
V-317090
Strainer
Sectional drawings
ECOLINE VA
ECOLINE RA ECOLINE FY
5.3 List of components
Part no.
Part Name
ECOLIEN VA
ECOLINE RA
ECOLINE FY
1
Body
Body
Body
2
Disc
Disc
Screen
3
Retaining ring
Spring
Gasket
4
Disc nut
Gasket
Cover
5
Stem
Nut
Nut
6
Gasket
Stud
Stud
7
Packing
Cover
Washer
8
Pin
Plug
9
Eyebolt
10
Nut
11
Stem nut

9
12
Screw
13
Hand wheel
15
Bonnet
16
Gland follower
17
Gland
18
Stud
19
Nut
5.4 Function
5.4.1 ECOLINE VA
The valves consist of the pressure-retaining parts, i.e. body
(1) and bonnet (15), and the functional unit.
The body (1) and bonnet (15) are connected by stud (18) and
nut (19), and joint is sealed off by the gasket (6). The trim
mainly consists of the valves disc (2), stem (5) and disc nut
(4), the actuating element is a hand wheel (13) or actuator.
The stem (5) passage in the bonnet (15) is sealed by the
packing (7) which is tightened by means of two nuts (10) on
the top of gland follower (16).
The contact faces of body (1) and / or valve disc (2) are
made of rust-proof materials.
5.4.2 ECOLINE RA
Non-return valves are check valves which close
automatically if fluid flow is reversed. Non-return valves with
separate cover consist of the pressure-retaining components
of body (1) and cover (7), as well as the functional unit.
The body (1) and cover (7) are connected by studs (6) and
nuts (5), and the joint is sealed off by the gasket (4).
The check valves disc (2) is guided in the cover (7). The
position of the check valve disc (2) is determined both by the
flow conditions and by the spring (3) if any.
5.4.3 ECOLINE FY
Strainers feature the same pressure-retaining components
and sealing design as non-return valves with separate cover
(4). The strainer insert (2) is clamped between the body seat
and the cover, where it removes particles from the flow,
depending on the mesh size selected.
6 Installation
6.1 General
As a rule, the engineering contractor, construction company
or operator/user are responsible for the positioning and
installation of the valves.
Planning and installation errors may impair the reliable
function of the valves and pose a substantial safety hazard.
Compliance with the following requirements is of particular
importance.
The piping must be laid such that detrimental
thrust and torsional forces are kept away from
the valve body during installation and operation to avoid both
leakage and damage to de body
The caps on the connection ports shall be
removed immediately prior to installation.
When painting the pipes and valves, do not apply
paint to bolts, stem and plastic components (valve
function will impair), if construction work is still in progress,
the valves must be protected against dust, sand and building
material etc. (cover with suitable means).
Do not use valve hand-wheels as footholds!
For safety reasons, Valves and pipes system
operated at high (>50℃) or low (<0℃)
temperatures must be insulated, or a warning sign must
point out the risk of personal injury involved when touching
the hot or cold components
Valves with external moving elements must be fitted with
protective covers, or other suitable measures must be taken
to prevent accidents.
Valves used as end-valve in a pipeline should be
protected against unauthorized or unintentional
opening to prevent damage to property and/or personal
injury.
6.2 Installation position
The valve bodies are marked with an arrow indicating the
flow direction. if necessary. The valves must be installed in
Caution
Caution

10
such that the flow direction of the fluid corresponds to the
direction shown by the arrow cast on the valve body. If no
directional arrow is cast on the valve body, the valve can be
installed in any position.
6.2.1 Shut-off valves
Shut-off valves can be installed in any position; however, the
best installation position is with the stem pointing vertically
upwards. Valves with bellows should not be installed with the
stem pointing downwards, if possible, to prevent dirt deposits
between the folds of the bellows.
Shut-off valves must be installed in the line so as to ensure
that the fluid enter the valve beneath the disc and flows out
above the disc. However, they can also be installed in lines
with alternating flow. If the valves are to be used for throttling
applications, a throttling plug must be used. For flow
incidence on throttling plugs please refer to the respective
type series booklets. If in doubt, please contact the KSB
factory.
6.2.2 Non-return valves
To ensure proper operation, non-return valves must always
be installed in such a way that the fluid enters the valve
beneath the check valves disc. When equipped with a spring,
they can be used in both pipe with upward flow and pipes
with downward flow.
Non-return valves without closing spring shall only be
installed in horizontal position with the cover pointing
upwards in horizontal pipes.
6.2.3 Strainers
Strainers shall always be installed in such a way that the fluid
flow through the strainer insert from the inside towards the
outside (cage effect of the strainer insert)
We recommend fitting shut-off valves in the pipeline on both
side of the strainer, so that the strainer can be replaced or
cleaned without having to drain the entire system. Strainers
shall be installed with sufficient clearance for removing the
strainer insert, In both horizontal and vertical pipes, we
recommend to install the strainer with the strainer insert
hanging downwards to facilitate cleaning. compliance with
the directional arrow is essential. On strainers with magnetic
insert we recommend to remove the entire cover to clean the
magnet.
Please note: When replacing the strainer insert make sure
that the weld of the insert is not located in the strainer outlet
port, so as to attain an optimum (high) Kv valve.
6.2.4 Special designs
Valves with separate throttling plug shall always be installed
in such a way that the pressure to be sealed off lies beneath
the disc, to ensure a reliable throttling effect.
For higher differential pressures integral throttling plug/stem
connections are required. In such cases we recommend to
install the valves so that the pressure lies above the disc.
If you have questions concerning optimum valve selection or
permissible differential pressures for valves with throttling
plugs, please contact the valve manufacturer.
Drainage, vent or manual start-up pipes are normally fitted
with valve combinations consisting of a shut-off valve
(pressure beneath the disc) and a throttling valve (integral
throttling plug /stem connection, pressure above the disc)
Valves with pilot plug are always installed so that
the pressure to sealed off lies above the plug
If the valves are to be used as dead-end valves, double
shut-off should be ensured for safety reasons.
6.3 Installation instructions
6.3.1 Flanged valves
The mating flange faces must be clean and undamaged.
The gaskets on the mating flanges must be properly
centred. Only fasteners and sealing elements made
of approved.
Materials shall be used. For the flange connection between
valve and pipe use all flange bolt holes provided.
Use suitable tools to tighten the bolts evenly and crosswise
at the permissible torques.
6.4 Valves with actuator
Valves with transmission gear and /or actuators must be
installed with the stem in vertical position, if possible, if this

11
requirement cannot be met, adequately support the actuator
on site or consult the manufacturer.
Electrical connection shall be effected by suitably
trained personnel only
6.5 Insulation
If the valve is to be insulated. make sure that the insulation
does not impair the function of the valve. KSB recommends
to make sure that the sealing areas at the cover/bonnet joints
and at the stem passage (gland packing) are easily
accessible and visible.
7 Commissioning / start-up /shut down
(Please also refer to section 6 installation)
7.1 Commissioning / start-up
7.1.1 General
Prior to commissioning /start-up compare the material,
pressure and temperature data on the valves with the
operating conditions of the piping to check the material’s
chemical resistance and stability under load.
Surge pressure (water hammer), which might occur, must
not exceed the max. permissible pressure. Safety measures
are requirement to be taken.
In new systems and particularly after repair, the complete
piping system must be thoroughly flushed with the valve fully
opened so that particles and /or welding beads that might
damage the seat/disc interface are removed.
If the piling system is cleaned by means of a pickling
procedure, responsibility for the compatibility of the pickling
media used and the pickling procedure itself lies with the
pickling company.
Venting the valve by undoing the bonnet/cover bolting or
removing gland packing is dangerous and therefore not
permitted.
To prevent damage to the valve material or joint seals, the
usual start-up and shutdown velocities must be adhered to.
7.1.2 Valve actuation
The valves are closed by turning the hand wheel in clockwise
direction and opened by turning it in counter-clockwise
direction (top view); Direction symbols are found on the top
of the hand wheel.
Valves with hand wheels may only be
actuated by hand, As the valve can be
damaged by applying excessive forces, it is not allowed to
use additional levers to move the hand wheel.
Shut-off valves are normally used in such a way that they are
either fully open or fully closed.
For control functions in continuous operation, throttling plugs
should be fitted.
Performing throttling operations without a
throttling plug may result in an excessive
noise level, excessive wear or even destruction of the valve
by cavitation.
7.1.3 Functional test
KSB recommends checking the following functions:
Check the shut-off function of the installed valves prior to
commissioning /start up by opening and closing them several
times.
Check the gland packing for leakage when it is subjected to
full operating pressure and temperature for the first time.
Re-tighten the nuts at the gland follower evenly. if necessary.
The bonnet/cover bolting with the joint ring shall be gradually
tightened crosswise, evenly and in clockwise direction after
the first loading or heating up of the valves and in the event
of leakage at the joint ring. For tightening torques please
contact the manufacturer, if necessary.
Open the valve by two full hand wheel turns
before re-tightening nuts, to prevent jamming
of the seat.
Re-tightening the nuts of the bonnet/cover bolting is
particularly important for valves installed in heat transfer
systems to DIN 4754
7.1.4 Valves with actuator
On valves with electric, pneumatic or hydraulic actuators, the
strokes and actuating forces must be limited
Electrical actuators are factory-set ready for operation. They
shall be wired as follows:
Globe valve “CLOSE”torque-dependent
Globe valve “OPEN”travel-dependent
The wiring diagrams are given in the terminal boxes.
For pneumatic and hydraulic actuators, the control pressures
specified in the order shall be complied with.
Non-observance may damage the actuator.
Caution
Caution
Caution

12
Closing and opening torques or actuating forces shall be
enquired from the manufacturer, if necessary.
7.2 Shutdown
In the event of prolonged shutdowns, KSB
recommends to drain fluids which change their
physical condition due to changes in concentration,
polymerisation, crystallisation, solidification, etc., from the
piping. If required, flush the piping with the valves fully
opened.
8 Servicing / maintenance
8.1 Safety instructions
Repair and maintenance work must only be performed by
qualified personnel taking into account the relevant health
and safety regulations.
It is imperative that the before safety information and the
general information on safety as per section 2, Safety be
observed whenever servicing and maintenance work is
performed.
Always use suitable spare parts and tools,
even in emergencies, to ensure proper
functioning of the valves.
8.1.1 Removing valves
Before removing the complete valve from the pipeline or
before repair or maintenance work to the valve itself. i.e.
- prior to undoing the flange bolting between valve and
pipe
- prior to undoing the cover/yoke or pressure seal
bonnet/cover from the body
- prior to removing any drain or vent plugs
- prior to undoing the gland follower to replace packing
rings.
- prior to removing and an actuator bolted directly to the
yoke head.
- prior to opening to yoke head for maintenance work to
the bearing and threaded bush.
valve pressure must be released and the valve
must be allowed to cool down such that the
temperature is below the fluid’s vaporisation temperature in
all areas in contact with the fluid in order to effectively
prevent any risk of scalding.
Danger of death when opening a valve under pressure, if the
valve has been used for handling toxic or easily inflammable
fluids or fluids whose residues could cause corrosion in
conjunction with humidity, drain the valve and flush or vent it.
If required, wear safety clothing and a protective mask.
Depending on the installation position, fluid residues may be
left in the valve; these must be collected and properly
disposed of.
Prior to any transport, flush and drain the valve thoroughly.
If you have any questions, please contact the manufacturer.
8.1.2 Removing actuators
If actuators powered by an external source of
energy (electric, pneumatic, hydraulic) need to be
remove from the valves or dismantled, the energy
supply must be shut down prior to starting any work and the
instruction in sections 3,8.1.1 and operating manual of the
actuator must be observed.
Actuators with integrated spring mechanism
contain pre-loaded springs. They shall only be
dismantled with extreme care, using the requisite locking
devices.
If you have any questions, please contact the manufacturer.
8.2 Maintenance
All valve components have been designed to be largely
maintenance –free. The materials of the moving parts have
been selected for minimum wear.
The operator / user is responsible for fixing appropriate
inspection and servicing life of valves can be prolonged by:
- Actuating the valve (open-close) at least once or twice a
year.
- Lubricating the movable parts such as stem (3) and
gland bolt (not for oxygen valves) with standardized
lubricants to DIN 51825,
- Adding or replacing packing rings in the packing (7) in
time.
- Re-tightening or replacing the cover gasket (21) in time
The safety instructions are sections 3,8 and the instructions
in sections 9 must be complied with.
8.3 Valve reassembly
Valve reassembly shall be effected in reverse order to
dismantling. To maintain functional reliability, new gaskets
Caution

13
and gland packing shall be used whenever the valve is
reassembled.
After reassembly and prior to commissioning / start-up, the
valves shall be subjected to a leak test in accordance with
DIN 3230, Part 3.
9 Trouble –shooting
9.1 General
KSB valves are robust in design, Nevertheless, malfunctions,
e.g. caused by disoperation, lack of maintenance or improper
use cannot be ruled out completely.
All repair and maintenance work shall be performed by
qualified personnel using suitable tools and original spare
parts.
We recommend having this work performed by our service
personnel. The safety information in section 3 and 8 must be
complied with.
9.2 –Faults > Remedy
- Leakage at the seat
Possible causes:
- Contamination / solids in the fluid
- Erosion, corrosion. Abrasion
- Excessive loads from pipeline forces or thermal
stresses.
>Rework the seat /disc contact faces at the valve disc and
body using a suitable reseating tool after the valve has been
dismantled. The re-seating process of the seat/disc contact
face shall be continuing until the contact faces exhibit a
uniform bright surface.
- Leakage at the cover gasket
Possible causes:
- Gasket has settled as a result of high temperature
fluctuations
- Impermissible pressure loads
- Poor maintenance
- Poor gasket resistance to temperature and fluid handled
- Bolted bonnet / cover
>Re-tighten the bonnet / cover bolting
>Replace the gasket
After have removed the bonnet / cover bolting (4-5). Clean
the sealing surfaces carefully before inserting a new gasket
- Leakage at the gland packing
Possible causes:
- Worn packing material
- Poor maintenance
- Poor packing resistance to temperature and fluid
handled
>Re-tighten the gland packing at the nuts of the gland
follower. Make sure that the friction forces at the stem do not
increase too much.
>Replace the packing rings of the packing: undo the nuts
and lift off the gland follower.
Clean the gland packing chamber carefully before inserting
new packing rings. Split packing rings shall be inserted in
such a way that the cut edges are offset by 120”-180”
Do not use additional sealing agent for non-asbestos
gaskets and packing rings. With anti-adhesive coatings, only
use agents explicitly recommended by the sealing element
manufacturer.
If you have any questions, please contact the manufacturer
.
Caution

KSB SE & Co. KGaA
Johann-Klein-Straße 9 • 67227 Frankenthal (Germany)
Tel. [phone]
www.ksb.com
KSB Italia S.p.A.
Via Massimo D’Azeglio, 2
2086 Concorezzo MB
Tel. + 9 0 9 6048-000 – Fax + 9 0 9 6048-097
www.ksb.com
Centri Service
Concorezzo MB • Via Massimo D’Azeglio, 2
Tel. + 9 0 9 6048-000 • Fax + 9 0 9 6048-882
Scorzè VE • Via Guido Rossa, 12/A
Tel. + 9 041 5840917 • Fax + 9 041 5840918