KSB BOA-SuperCompact User manual

BOA-SuperCompact, BOA-Compact,
BOA-Compact EKB, BOA-W,
BOA-H, BOA-R, BOA-RVK,
BOA-S
Operating Manual

Legal information/Copyright
Operating Manual
All rights reserved. The contents provided herein must neither be distributed, copied, reproduced,
edited or processed for any other purpose, nor otherwise transmitted, published or made available to a
third party without the manufacturer's express written consent.
Subject to technical modification without prior notice.
© KSB SE & Co. KGaA, Frankenthal 01/02/2018

Contents
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Contents
Glossary .................................................................................................................................................. 5
1 General.................................................................................................................................................... 6
1.1 Principles ...........................................................................................................................................................6
1.2 Target group.....................................................................................................................................................6
1.3 Other applicable documents............................................................................................................................6
1.4 Symbols .............................................................................................................................................................6
2 Safety...................................................................................................................................................... 7
2.1 Key to safety symbols/markings.......................................................................................................................7
2.2 General..............................................................................................................................................................7
2.3 Intended use .....................................................................................................................................................8
2.4 Personnel qualification and training...............................................................................................................8
2.5 Consequences and risks caused by non-compliance with this manual .........................................................8
2.6 Safety awareness ..............................................................................................................................................9
2.7 Safety information for the operator/user.......................................................................................................9
2.8 Safety information for maintenance, inspection and installation ................................................................9
2.9 Unauthorised modes of operation..................................................................................................................9
3 General Safety Regulations................................................................................................................. 10
4 Transport/Temporary Storage/Disposal............................................................................................. 12
4.1 Checking the condition upon delivery..........................................................................................................12
4.2 Transport.........................................................................................................................................................12
4.3 Storage/preservation......................................................................................................................................13
4.4 Return to supplier...........................................................................................................................................13
4.5 Disposal ...........................................................................................................................................................14
5 Valve Description ................................................................................................................................. 15
5.1 General description ........................................................................................................................................15
5.2 Marking...........................................................................................................................................................15
5.3 Soft-seated Globe Valves to DIN/EN..............................................................................................................16
5.4 Bellows-type Globe Valves to DIN/EN............................................................................................................25
5.5 Lift Check Valves to DIN/EN ...........................................................................................................................28
5.6 Strainers to DIN/EN.........................................................................................................................................32
5.7 Scope of supply...............................................................................................................................................35
5.8 Dimensions and weights ................................................................................................................................35
6 Installation at Site................................................................................................................................ 36
6.1 General information/Safety regulations .......................................................................................................36
6.2 Installation ......................................................................................................................................................36
6.3 Insulation ........................................................................................................................................................36
6.4 Soft-seated Globe Valves to DIN/EN..............................................................................................................37
6.5 Bellows-type Globe Valves to DIN/EN............................................................................................................38
6.6 Lift Check Valves to DIN/EN ...........................................................................................................................38
6.7 Strainers to DIN/EN.........................................................................................................................................40
7 Commissioning/Start-up/Shutdown................................................................................................... 41
7.1 Commissioning/Start-up.................................................................................................................................41
7.2 Shutdown........................................................................................................................................................43
8 Servicing/Maintenance........................................................................................................................ 44
8.1 Safety regulations...........................................................................................................................................44
8.2 Maintenance...................................................................................................................................................44
9 Trouble-shooting.................................................................................................................................. 49
10 EU Declaration of Conformity............................................................................................................. 50
10.1 EU Declaration of Conformity for BOA-H, BOA-R........................................................................................50
10.2 EU Declaration of Conformity for BOA-SuperCompact, BOA-Compact, BOA-CompactEKB, BOA-W ......51

Contents
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10.3 EU Declaration of Conformity for BOA-RVK.................................................................................................52
10.4 EU Declaration of Conformity for BOA-S EN-GJL-250..................................................................................53
10.5 EU Declaration of Conformity for BOA-S EN-GJS-400-18-LT........................................................................54
11 Certificate of Decontamination........................................................................................................... 55
Index ..................................................................................................................................................... 56

Glossary
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Glossary
Certificate of decontamination
A certificate of decontamination is enclosed by the
customer when returning the product to the
manufacturer to certify that the product has been
properly drained to eliminate any environmental
and health hazards arising from components in
contact with the fluid handled.
EPDM
Ethylene-propylene-diene rubber
Technical literature
Refer to the product catalogue for the technical
literature on our products at www.ksb.com.

1 General
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1 General
1.1 Principles
This operating manual is supplied as an integral part of the type series and variants
indicated on the front cover. The manual describes the proper and safe use of this
equipment in all phases of operation.
In the event of damage, immediately contact the KSB sales organisation responsible
in order to maintain the right to claim under warranty.
1.2 Target group
This operating manual is aimed at the target group of trained and qualified specialist
technical personnel.
1.3 Other applicable documents
Table1: Overview of other applicable documents
Document Contents
Type series booklet Description of the valve
Flow characteristics1) Information on Kv and zeta values
General assembly drawing2) Sectional drawing of the valve
Sub-supplier product literature3) Operating manuals and other product literature
for the accessories
Observe the relevant manufacturer's product literature for the accessories.
1.4 Symbols
Table2: Symbols used in this manual
Symbol Description
✓Conditions which need to be fulfilled before proceeding with the
step-by-step instructions
⊳Safety instructions
⇨Result of an action
⇨Cross-references
1.
2.
Step-by-step instructions
Note
Recommendations and important information on how to handle
the product
1) If any
2) If inclusion in the scope of supply has been agreed; otherwise refer to the type series booklet.
3) If inclusion in the scope of supply has been agreed.

2 Safety
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2 Safety
!DANGER
All the information contained in this section refers to hazardous situations.
In addition to the present general safety information the action-related safety
information given in the other sections must be observed.
2.1 Key to safety symbols/markings
Table3: Definition of safety symbols/markings
Symbol Description
!DANGER
DANGER
This signal word indicates a high-risk hazard which, if not avoided,
will result in death or serious injury.
!WARNING
WARNING
This signal word indicates a medium-risk hazard which, if not
avoided, could result in death or serious injury.
CAUTION
CAUTION
This signal word indicates a hazard which, if not avoided, could
result in damage to the machine and its functions.
Explosion protection
This symbol identifies information about avoiding explosions in
potentially explosive atmospheres in accordance with EU Directive
2014/34/EU (ATEX).
General hazard
In conjunction with one of the signal words this symbol indicates a
hazard which will or could result in death or serious injury.
Electrical hazard
In conjunction with one of the signal words this symbol indicates a
hazard involving electrical voltage and identifies information about
protection against electrical voltage.
Machine damage
In conjunction with the signal word CAUTION this symbol indicates
a hazard for the machine and its functions.
2.2 General
This manual contains general installation, operating and maintenance instructions
that must be observed to ensure safe valve operation and prevent personal injury
and damage to property.
The safety information in all sections of this manual must be complied with.
The operating manual must be read and fully understood by the specialist personnel/
operators responsible prior to installation and commissioning.
The contents of this operating manual must be available to the specialist personnel
at the site at all times.
Instructions and information attached directly to the valve must always be complied
with and kept in a perfectly legible condition at all times. This applies to, for
example: flow direction arrow, manufacturer, type designation, nominal pressure,
nominal size, year of construction and material.
The operator is responsible for ensuring compliance with all local regulations not
taken into account in this operating manual.
The design, manufacture and testing of the valves are subject to a QM system to
DINENISO9001 as well as the European Pressure Equipment Directive 2014/68/EU.
Compliance with these requirements, however, is based on normal, predominantly
static loading.
Valves exposed to creep-rupture conditions have a limited service life and have to
meet the applicable regulations stipulated in the technical codes.

2 Safety
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In the case of customised special variants, further restrictions may apply with regard
to the operating mode and service life. Please refer to the relevant sales literature for
this information.
This operating manual does not take into account:
▪Any eventualities or incidents which may occur during installation performed by
the customer, operation and maintenance.
▪Local regulations; the operator must ensure that such regulations are strictly
observed by all, including the personnel called in for installation.
2.3 Intended use
▪Only operate valves which are in perfect technical condition.
▪Do not operate partially assembled valves.
▪The valve must only be used for fluids specified in the product literature.
▪Only operate the valve within the permissible operating range specified for
pressure and temperature.
▪The valve's design and rating are based on predominantly static loading in
accordance with the codes applied. Consult the manufacturer if the valve is
subjected to dynamic loads or any other additional influences.
▪Consult the manufacturer about any other modes of operation not described in
the product literature.
2.3.1 Prevention of foreseeable misuse
▪Never exceed the permissible application and operating limits specified in the
data sheet or product literature regarding pressure, temperature, etc.
▪Observe all safety information and instructions in this manual.
2.4 Personnel qualification and training
All personnel involved must be fully qualified to transport, install, operate, maintain
and inspect the product this manual refers to and be fully aware of the interaction
between the valve and the system.
The responsibilities, competence and supervision of all personnel involved in
transport, installation, operation, maintenance and inspection must be clearly
defined by the operator.
Deficits in knowledge must be rectified by means of training and instruction
provided by sufficiently trained specialist personnel. If required, the operator can
commission the manufacturer/supplier to train the personnel.
Hands-on training at the valve must always be supervised by specialist technical
personnel.
2.5 Consequences and risks caused by non-compliance with this manual
▪Non-compliance with these operating instructions will lead to forfeiture of
warranty cover and of any and all rights to claims for damages.
▪Non-compliance can, for example, have the following consequences:
–Hazards to persons due to electrical, thermal, mechanical and chemical
effects and explosions
–Failure of important product functions
–Failure of prescribed maintenance and servicing practices
–Hazard to the environment due to leakage of hazardous substances

2 Safety
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2.6 Safety awareness
In addition to the safety information contained in this manual and the intended use,
the following safety regulations shall be complied with:
▪Accident prevention, health regulations and safety regulations
▪Explosion protection regulations
▪Safety regulations for handling hazardous substances
▪Applicable standards, directives and laws
2.7 Safety information for the operator/user
Actuator-operated valves are intended for use in areas which cannot be accessed by
unauthorised persons. Operation of these valves in areas which can be accessed by
unauthorised persons is only permitted if appropriate protective devices are fitted at
the site. This must be ensured by the operator.
▪The operator shall fit contact guards for hot, cold and moving parts and check
that the guards function properly.
▪Do not remove any contact guards during operation.
▪Provide the personnel with protective equipment and make sure it is used.
▪Contain leakages (e.g. at the stem seal) of hazardous fluids (e.g. explosive, toxic,
hot) so as to avoid any danger to persons and the environment. Adhere to all
relevant laws.
▪Eliminate all electrical hazards. (In this respect refer to the applicable national
safety regulations and/or regulations issued by the local energy supply
companies.)
2.8 Safety information for maintenance, inspection and installation
▪Modifications or alterations of the valve require the manufacturer's prior
consent.
▪Use only original spare parts or parts authorised by the manufacturer. The use of
other parts can invalidate any liability of the manufacturer for resulting damage.
▪The operator ensures that maintenance, inspection and installation is performed
by authorised, qualified specialist personnel who are thoroughly familiar with
the manual.
▪Carry out work on the valve during standstill only.
▪The valve body must have cooled down to ambient temperature.
▪The pressure in the valve body must have been released and the valve must have
been drained.
▪When taking the valve out of service always adhere to the procedure described
in the manual. (ðSection7.2.1,Page43)
▪Decontaminate valves which handle fluids posing a health hazard.
(ðSection8.1,Page44)
▪As soon as the work has been completed, re-install and re-activate any safety-
relevant and protective devices. Before returning the product to service, observe
all instructions on commissioning.
2.9 Unauthorised modes of operation
Never operate the valve outside the permissible limits (refer to the type series
booklet, the operating manual or the marking on the valve).
The warranty relating to the operating reliability and safety of the valve supplied is
only valid if the valve is used in accordance with its intended use.
(ðSection2.3,Page8)

3 General Safety Regulations
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3 General Safety Regulations
DANGER
Handling actuated valves
Danger to life!
▷If the valves are fitted with actuators, ensure that the actuator's operating
manual is also observed.
DANGER
Surge pressure/water hammer potentially occurring at high temperatures
Danger to life caused by burns or scalds!
▷The max. permissible valve pressure must not be exceeded
(ðSection5,Page15) .
▷Use valves made of nodular cast iron or steel.
▷Operator shall provide general safety measures for the system.
WARNING
Fluids handled, consumables and supplies which are hot and/or pose a health
hazard
Hazard to persons and the environment!
▷Collect and properly dispose of flushing fluid and any fluid residues.
▷Wear safety clothing and a protective mask if required.
▷Observe all legal regulations on the disposal of fluids posing a health hazard.
WARNING
Cold/hot piping and/or valve
Risk of thermal injury!
▷Insulate the valve.
▷Attach warning signs.
WARNING
Impermissible piping forces
Leakage from or rupture of the valve body!
▷Connect the pipes to the valve without transmitting any stresses or strains.
▷Take constructional measures to prevent any piping forces from being
transmitted to the valve.
WARNING
Unqualified personnel performing work on the valve
Risk of injury!
▷Always have repair and maintenance work performed by specially trained,
qualified personnel.

3 General Safety Regulations
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CAUTION
Condensation water forming in air-conditioning, cooling and refrigerating systems
Ice forming!
Blockage of actuating element!
Damage due to corrosion!
▷Insulate the valve to prevent diffusion.
CAUTION
Improper installation
Damage to the valve!
▷Remove the caps prior to installation.
▷Clean the mating flange faces.
▷Protect the body and bonnet/cover from any impacts.
CAUTION
Outdoor installation
Damage due to corrosion!
▷Protect the valve appropriately against moisture.
CAUTION
Painting of pipes
Impairment of the valve's function and loss of information!
▷Protect stem and plastic components prior to applying paint.
▷Protect printed name plates prior to applying paint.
CAUTION
Impermissible load
Damage to the actuating element!
▷Do not use the valve as a foothold.
CAUTION
Improper reassembly
Damage to the valve!
▷Reassemble the valve in accordance with the general rules of sound
engineering practice.
▷Use original spare parts only.

4 Transport/Temporary Storage/Disposal
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4 Transport/Temporary Storage/Disposal
4.1 Checking the condition upon delivery
1. On transfer of goods, check each packaging unit for damage.
2. In the event of in-transit damage, assess the exact damage, document it and
notify KSB or the supplying dealer and the insurer about the damage in writing
immediately.
4.2 Transport
Always close the valve manually before transporting it. The valve is delivered ready
for operation and its line connection ports may still be closed with caps, if applicable.
Original spare parts are only ready for operation following assembly/installation and
subsequent shell and leak testing of the valve.
DANGER
The valve could slip out of the suspension arrangement
Danger to life from falling parts!
▷Only transport the valve in the specified position.
▷Never suspend the valve from its handwheel.
▷Pay attention to the weight data and the centre of gravity.
▷Observe the applicable local accident prevention regulations.
▷Use suitable, permitted lifting accessories.
▷Transport devices (if any) on the actuator may not be suitable for being
attached to a suspension arrangement in order to transport the valve/actuator
assembly. Refer to the actuator operating manual for the permissible loads.
To transport the valve, suspend it from the lifting tackle as illustrated.
Fig.1: Transporting the valve
CAUTION
Incorrect transport of BOA-Compact EKB
Damage to the electrostatic plastic coating!
▷Do not remove the flange caps.
▷Avoid contact with sharp objects and edges.

4 Transport/Temporary Storage/Disposal
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4.3 Storage/preservation
If properly stored indoors, the equipment is protected for a maximum of 12months.
This allows commissioning to take place some time after delivery. We recommend
that the following measures be taken:
▪Store the valve in a dust-free and vibration-free, frost-proof room where the
atmospheric humidity is as constant as possible (use suitable caps or film for
protection).
▪Protect EPDM-encapsulated valve discs from sunlight or UV light from other
sources. Observe the DIN 7716 standard for the storage of elastomers.
▪Close the valve using little force and store in the closed position.
▪Protect the valve from contact with solvents, lubricants, fuels or other chemicals.
4.4 Return to supplier
1. Drain the valve as described in the manual.
2. Always flush and clean the valve, particularly if it has been used for handling
noxious, explosive, hot or other hazardous fluids.
3. If the fluids handled by the system leave residues which might lead to corrosion
damage when coming into contact with atmospheric humidity, or which might
ignite when coming into contact with oxygen, the valve must also be
neutralised and blown through with anhydrous inert gas for drying purposes.
4. When returning valves used for handling Fluids in Group 1
(ðSection5.2,Page15) always complete and enclose a certificate of
decontamination.
Always indicate any safety and decontamination measures taken.
(ðSection11,Page55)
NOTE
If required, a blank certificate of decontamination can be downloaded from the
following web site: www.ksb.com/certificate_of_decontamination

4 Transport/Temporary Storage/Disposal
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4.5 Disposal
WARNING
Fluids handled, consumables and supplies which are hot and/or pose a health
hazard
Hazard to persons and the environment!
▷Collect and properly dispose of flushing fluid and any fluid residues.
▷Wear safety clothing and a protective mask if required.
▷Observe all legal regulations on the disposal of fluids posing a health hazard.
1. Dismantle the valve.
Collect greases and other lubricants during dismantling.
2. Separate and sort the valve materials, e.g. by:
- Metals
- Plastics
- Electronic waste
- Greases and other lubricants
3. Dispose of materials in accordance with current regulations or in another
controlled manner.

5 Valve Description
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5 Valve Description
5.1 General description
The sectional drawings below provide examples of the general design/configuration
of the valve. For additional and more detailed information, refer to the respective
type series booklet.
5.2 Marking
Table4: General marking
Nominal size DN ...
Nominal pressure class PN ...
Manufacturer KSB
Type series/Model BOA-...
Year of construction 20..
Material .......
Flow direction arrow →
Traceability of the material .......
CE marking
Identification number of the notified body 0036
Marking of 3.1 acceptance test (shell and leak test) on BOA-H, BOA-
R and BOA-S
In accordance with the current Pressure Equipment Directive the valves are marked as
shown in the following table:
Fluids in Groups 1 and 2
PN DN
≤25 32 40 50 65 80 100 125 150 ≥200
10
16
25
≥40
Fig.2: BOA-H, BOA-R und BOA-S
Fluids in Group 2
PN DN
≤32 40 50 65 80 100 125 150 ≥200
6
10
16
25
≥40
Fig.3: BOA-SuperCompact, BOA-Compact, BOA-CompactEKB, BOA-W und BOA-RVK
Fluid groups In accordance with Article13 Para.1 of the current Pressure Equipment Directive,
Group1 comprises all fluids posing physical or health hazards, e.g. fluids defined as
▪Explosive
▪Extremely flammable
▪Highly flammable
▪Flammable: The maximum allowable temperature is above flashpoint.
▪Very toxic
▪Toxic
▪Oxidising

5 Valve Description
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Group 2 comprises all other fluids not referred to in Group 1.
5.3 Soft-seated Globe Valves to DIN/EN
5.3.1 BOA-SuperCompact
5.3.1.1 Operating data
Table5: Operating properties
Characteristic Value
Nominal pressure PN 6/10/16
Nominal size DN 20 - 2004)
Max. permissible pressure [bar] 16
Min. permissible temperature [°C] -10
Max. permissible temperature [°C] +120
5.3.1.2 Fluids handled
▪Water
▪Water/glycol mixtures
▪Not suitable for fluids containing mineral oils, steam or fluids liable to attack
EPDM and cast iron.
▪Other fluids on request.
5.3.1.3 Design details
Design
Valves to type series booklet 7113.1
▪Straight-way globe valve with slanted seat
▪Flange alignment holes for centring, downstream dismantling and dead-end
service
▪Slanted seat design
▪Face-to-face length to EN558/94 (DN25-150), EN558/14 (DN200)
▪Single-piece pressure-retaining body
▪Non-rising handwheel
▪Position indicator outside the insulating material
▪Locking device, travel stop, position indicator, throttling plug and insulating cap
with anti-condensation feature as standard
▪Suitable for full insulation in acc. with German energy-saving regulations
▪Non-rotating stem with protected, external thread
▪Maintenance-free stem seal with EPDM profile ring
▪Compact EPDM-encapsulated throttling plug as soft main seat and back seat
4) DN 200, type BOA-Compact

5 Valve Description
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▪Exterior coating: blue,RAL5002
▪The valves satisfy the safety requirements of AnnexI of the European Pressure
Equipment Directive 2014/68/EU(PED) for fluids in Group2.
▪Type-tested to the specifications of Germanischer Lloyd and Bureau Veritas.
Variants
▪Lead-sealable cap (prevents unauthorised actuation) as assembly set
▪Electric actuators
5.3.1.4 Pressure/temperature ratings
Table6: Test pressure and operating pressure
PN DN Shell test Leak test (seat) Permissible operating pressure5)
With water
Tests P10 and P11 to
DINEN12266-1
Test P12, leakage rateA to
DINEN12266-1
-10 to 120 °C
[bar] [bar] [bar]
16 20/25-200 24 17,6 16
5.3.1.5 Materials
*)
*)
DN 20-150 DN 200
*) shown offset by 90°
Table7: Parts list
Part No. Description Material Note
100 Body EN-GJL-250 (5.1301) -
200 Stem Stainless steel, min. 13% chrome (Cr) -
350 Valve disc Grey cast iron/EPDM -
410 Profile seal Elastomer EPDM -
412 O-ring Elastomer EPDM DN 200
431 Gland packing Galvanised steel DN 200
506 Retaining ring Plastic -
5) Static load

5 Valve Description
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Part No. Description Material Note
506 Retaining ring Galvanised steel DN 200
545 Bearing bush Stainless steel/PTFE -
579 Stop Galvanised steel DN 200
5806) Cap Plastic, glass-fibre reinforced, impact-resistant -
689 Insulation cap Plastic -
903 Travel stop Galvanised steel -
9046) Locking device Galvanised steel -
916 Plug Plastic -
920 Travel stop Galvanised steel -
925 Stem nut Galvanised steel -
9616) Handwheel Plastic, glass-fibre reinforced, impact-resistant DN 20-50
Aluminium, die-cast DN 65-150
Grey cast iron (5.1300) DN 200
5.3.1.6 Function
The valve consists of a single-piece, pressure-retaining body 100 without a separate
bonnet.
The functional unit consists of valve disc 350, stem 200, and handwheel 961. The
passage of stem 200 in the body is sealed by a profile seal 412.
The stem seal is maintenance-free and does not require re-tightening.
5.3.2 BOA-Compact
5.3.2.1 Operating data
Table8: Operating properties
Characteristic Value
Nominal pressure PN 6/16
Nominal size DN 15 - 200
Max. permissible pressure [bar] 16
Min. permissible temperature [°C] -10
Max. permissible temperature [°C] +120
5.3.2.2 Fluids handled
▪Water
▪Water/glycol mixtures
▪Not suitable for fluids containing mineral oils, steam or fluids liable to attack
EPDM and cast iron.
▪Other fluids on request.
6) Spare part

5 Valve Description
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5.3.2.3 Design details
Design
Valves to type series booklet 7112.1
▪Straight-way globe valve with slanted seat
▪Slanted seat design
▪Short face-to-face length to DIN EN 558/14
▪Single-piece pressure-retaining body
▪Non-rising handwheel
▪Flanges to DIN EN 1092-2 Type 21
▪Position indicator outside the insulating material
▪Locking device, travel stop, position indicator, throttling plug and insulating cap
with anti-condensation feature as standard
▪Suitable for full insulation in acc. with German energy-saving regulations
▪Non-rotating stem with protected, external thread
▪Maintenance-free stem seal with EPDM profile ring
▪Compact EPDM-encapsulated throttling plug as soft main seat and back seat
▪Exterior coating: blue,RAL5002
▪The valves satisfy the safety requirements of AnnexI of the European Pressure
Equipment Directive 2014/68/EU(PED) for fluids in Group2.
▪Type-tested to the specifications of Germanischer Lloyd and Bureau Veritas.
Variants
▪Lead-sealable cap (prevents unauthorised actuation) as assembly set
▪Electric actuators
5.3.2.4 Pressure/temperature ratings
Table9: Test pressure and operating pressure
PN DN Shell test Leak test (seat) Permissible operating pressure7)
With water
Tests P10 and P11 to
DINEN12266-1
Test P12, leakage rateA to
DINEN12266-1
-10 to +120 °C
[bar] [bar] [bar]
6 15-200 9 6,6 6
16 15-200 24 17,6 16
7) Static load

5 Valve Description
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5.3.2.5 Materials
*)
DN 15-150 DN 200
*) shown offset by 90°
Table10: Parts list
Part No. Description Material Note
100 Body EN-GJL-250 (5.1301) -
200 Stem Stainless steel, min. 13% chrome (Cr) -
350 Valve disc Grey cast iron/EPDM -
410 Profile seal Elastomer EPDM -
506 Retaining ring Plastic DN 20-150
Galvanised steel DN 200
580.18) Cap Plastic, glass-fibre reinforced, impact-
resistant
-
689 Insulation cap Plastic -
903 Travel stop Galvanised steel -
9048) Locking device Galvanised steel -
9168) Plug Plastic -
925 Stem nut Galvanised steel -
9618) Handwheel Plastic, glass-fibre reinforced, impact-
resistant
DN 15-50
Aluminium, die-cast DN 65-150
Grey cast iron (5.1300) DN 200
5.3.2.6 Function
The valve consists of a single-piece, pressure-retaining body 100 without a separate
bonnet.
The functional unit consists of valve disc 350, stem 200, and handwheel 961. The
passage of stem 200 in the body is sealed by a profile seal 412.
The stem seal is maintenance-free and does not require re-tightening.
8) Spare part