LOHSE CNA Series User manual

Operating and Instruction Manual
Valves and actuators
EN
Version 2.1.2
Translation of the original instructions

2
Operating and Instruction Manual
Introduction
EN
Version 2.1.2
Introduction
This operating and installation manual is intended for installation,
operation, maintenance and monitoring staff.
The instructions in this manual must be read and understood by all
above personnel and must at all times be adhered to.
The manufacturer shall not be liable for damage or loss resulting from
non-compliance with the instructions in this installation and operating
manual.
Manufacturer details
The content of this document is the intellectual property of MARTIN
LOHSE GmbH. The preproduction, copying or disclosure of the
content of this document or parts thereof, for whatever purpose, is
only permitted with the explicit written consent of MARTIN LOHSE
GmbH.
All rights reserved.
Manufacturer address:
MARTIN LOHSE GmbH
Unteres Paradies 63
89522 Heidenheim
Germany
Telephone: [phone]
Fax: [phone]
E-mail: [e-mail]
Internet: www.lohse-gmbh.de

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Version 2.1.2
Contents
Contents
1About this installation and operating manual .......................7
1.1 General notes........................................................................7
1.2 Warning signs and symbols...................................................7
1.3 Target group..........................................................................8
1.4 Filing of installation and operating manual............................8
1.5 Validity...................................................................................9
1.5.1 Valve types ............................................................................9
1.5.2 Actuator types for COMPACT valves and reject valves..... 10
2Safety ...................................................................................... 11
2.1 General safety instructions................................................. 11
2.1.1 General risks....................................................................... 11
2.1.2 Risks in connection with electrical equipment.................... 11
2.1.3 Operation in explosive atmosphere.................................... 11
2.1.4 Preconditions for operation................................................. 11
2.1.5 Residual risks ..................................................................... 12
2.1.6 State of technology............................................................. 12
2.2 Proper use.......................................................................... 13
2.2.1 Maximum permissible operating temperature .................... 13
2.2.2 Maximum permissible operating pressure p [bar] .............. 14
2.3 Improper use....................................................................... 15
2.4 Modifications....................................................................... 15
2.5 Inspections.......................................................................... 15
2.6 Personal protective equipment........................................... 15
2.7 Noise protection.................................................................. 15
2.8 Additional regulations ......................................................... 15
2.9 Safety instructions for valves and actuators....................... 16
3Transport and storage........................................................... 18
3.1 Suitable slings and transport means .................................. 18
3.2 Transport ............................................................................ 19
3.3Storage ............................................................................... 21

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4Installation / dismantling....................................................... 22
4.1 Installation instructions ....................................................... 22
4.1.1 Installation recommendation............................................... 23
4.1.1.1 LOHSE COMPACT valve................................................... 23
4.1.1.2 LOHSE COMPACT valve with through-going valve plate.. 23
4.1.1.3 LOHSE reject valve ............................................................ 24
4.1.2 Installation between flanges............................................... 26
4.1.3 Installation as end fitting..................................................... 26
4.1.4 Tightening torques.............................................................. 26
4.1.4.1 Metric threads..................................................................... 27
4.1.4.2 UNC threads....................................................................... 27
4.1.5 Direction of pressure / flow................................................. 28
4.1.6 Flange bore dimensions ..................................................... 28
4.1.6.1 Selecting correct bolt length............................................... 29
4.1.6.2 Flange bores according to DIN EN 1092-1 PN10 .............. 30
4.1.6.3 Flange bores according to LOHSE standard with metric
thread.................................................................................. 35
4.1.6.4 Flange bores according to ANSI B 16.5 class 150 ≥ DN 700:
ANSI B 16.47 class 150...................................................... 42
4.1.6.5 Flange bores according to LOHSE standard with UNC
thread.................................................................................. 45
4.1.6.6 Additional flange bore dimensions...................................... 48
4.2 Dismantling......................................................................... 48
5Maintenance........................................................................... 49
5.1 General............................................................................... 49
5.2 Safety instructions .............................................................. 49
5.3 Cleaning of the valve.......................................................... 50
5.4 Lubrication of the valve....................................................... 50
5.5 Packing seals...................................................................... 50
5.6 Type plate........................................................................... 51
5.7 Additional instructions......................................................... 51
6Actuators for COMPACT valves and reject valves............. 52
6.1 Handwheel actuator............................................................ 52
6.1.1 Handwheel, non-rising "Hns".............................................. 52
6.1.2 Handwheel, rising "H"......................................................... 53
6.1.3 Function.............................................................................. 53
6.1.4 Maintenance....................................................................... 54
6.1.5 Recommendation................................................................ 54
6.2 LOHSE pneumatic cylinders............................................... 54
6.2.1 Pneumatic cylinder VC (double-acting).............................. 55
6.2.2 Pneumatic cylinder VM (double-acting).............................. 56

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6.2.3 Pneumatic cylinder PZ (double-acting)............................... 57
6.2.4 Pneumatic cylinder VMV (double-acting) ........................... 57
6.2.4.1 Pneumatic cylinder VMV "CLOSE"..................................... 58
6.2.4.2 Pneumatic cylinder VMV "OPEN"....................................... 59
6.2.5 Pneumatic cylinder VMF (single-acting)............................. 59
6.2.5.1 Pneumatic cylinder VMF "spring-closing"........................... 60
6.2.5.2 Pneumatic cylinder VMF "spring-opening"......................... 61
6.2.6 Maintenance....................................................................... 61
6.2.7 Accessories ........................................................................ 61
6.2.8 Air consumption.................................................................. 62
6.2.9 Closing force....................................................................... 64
6.2.10 Compressed air connection................................................ 64
6.3 Lever drive.......................................................................... 65
6.3.1 Design................................................................................. 65
6.3.2 Function.............................................................................. 65
6.3.3 Maintenance....................................................................... 65
6.4 Electrical actuator............................................................... 66
6.4.1 Electrical actuators for CNA, CNAA, CNA-Bi, CGNA......... 67
6.4.2 Electrical actuators for CAW............................................... 68
6.4.3 Electrical actuators for CBS, CBSA, CGBS (triangular or
pentagonal orifice).............................................................. 68
6.4.4 Electrical actuators for CDS, CDSV, CDSA, CDSR, CDSQ,
CGDS ................................................................................. 69
6.4.5 Operating manual of actuator............................................. 69
6.4.6 Maintenance....................................................................... 69
6.4.7 Note .................................................................................... 69
6.5 Chain wheel actuator.......................................................... 70
6.5.1 Alignment of chain guide .................................................... 70
6.5.2 Function.............................................................................. 70
6.5.3 Maintenance....................................................................... 71
6.6 Bevel gear actuator ............................................................ 71
6.6.1 Technical data .................................................................... 71
6.6.2 Function.............................................................................. 72
6.6.3 Maintenance....................................................................... 72
6.7 Square head actuator......................................................... 72
6.7.1 Function.............................................................................. 72
6.7.2Maintenance....................................................................... 72
6.8 Hydraulic cylinder ............................................................... 73
6.8.1 Operating manual of the hydraulic cylinder........................ 73
6.8.2 Maintenance....................................................................... 73
6.8.3 Note .................................................................................... 73
7Troubleshooting..................................................................... 74

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8Repair...................................................................................... 77
8.1 General notes..................................................................... 77
8.2 Disposal.............................................................................. 77
9Appendix................................................................................. 78
9.1 Recommended lubricants for valves and actuators ........... 78

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Version 2.1.2 About this installation and operating man
ual
1 About this installation and operating
manual
1.1 General notes
This installation and operating manual contains all information
necessary for the
•transport
•commissioning and decommissioning
•and operation of the valve or actuator.
•proper disposal
Information regarding the maintenance and repair can be found in the
separate service manual for LOHSE valves.
Using this document, familiarise yourself with the valve. The
installation and operating manual assists you in the proper and correct
operation of the product. Safe operation of the valve is only ensured, if
you proceed exactly as described in this manual.
For accessories and attachments, refer to the operating manual of the
respective manufacturer.
1.2 Warning signs and symbols
The following symbols and warnings are used to highlight
•dangers
•warnings
•safety measures and precautions
There are three categories of risks:
DANGER
Type and source of danger
Indicates an immediate danger. Non
-compliance with the instructions
can result in serious or even fatal injury.
•Explanation of the necessary safety measures.
WARNING
Type and source of danger
Indicates a potential risk. Non
-compliance with the instructions can
result in serious or damage to property.
•Explanation of the necessary safety measures.
CAUTION
Type and source of danger
Indicates a potential risk. Non
-compliance with the instructions can
result in injury or damage to property.
•Explanation of the necessary safety measures.

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About this installation and operating manual
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1.3 Target group
This installation and operating manual has been compiled for the
owner of the product and the qualified technical personnel working
with and on the valve who are able to carry out the required tasks and
identify potential risks.
Personnel must be qualified for working with
•electrical power
•Control and regulating equipment
•pressurised components
The valve owner must assess the personnel as regards the necessary
knowledge and skills.
Qualified technical personnel are in charge of the operation,
maintenance and monitoring of the valve.
1.4 Filing of installation and operating manual
Keep this installation and operating manual in a suitable location so
that it can be accessed at any time by qualified technical staff.

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About this installation and operating manual
1.5 Validity
This installation and operating manual is valid for the following series
of LOHSE valves and actuators:
1.5.1 Valve types
Series Description Valve type
CNA
Compact valve (standard model)
Shut-off valve
CNAA
COMPACT valve with raised seating flange facing
Shut-off valve
CNA-Bi
COMPACT valve, sealing on both sides
Shut-off valve
CGNA
COMPACT valve for powder and granular
products
Shut-off valve
CBS
COMPACT regulating valve with orifice
Regulating valve
CBSA
COMPACT regulating valve with orifice and
raised seating flange facing
Regulating valve
CGBS
COMPACT regulating valve with orifice for
powder and granular products
Regulating valve
CAW
COMPACT valve for liquids (water, wastewater)
Shut-off valve
CDS
COMPACT valve with through-going valve plate
Shut-off valve
CDSV
COMPACT valve with through-going valve plate,
with hardened valve plate and flanging rings
Shut-off valve
CDSA
COMPACT valve with through-going valve plate
and raised seating flange facing
Shut-off valve
CDSR
COMPACT valve with through-going valve plate
for rejects
Reject valve
CGDS
COMPACT valve with through-going valve plate
for powder and granular products
Shut-off valve
CDSQ
COMPACT valve with through-going valve plate
and square cross-section
Shut-off valve
CPD
COMPACT valve with through-going valve plate
for powder and bulk materials
Shut-off valve
NAQ
Reject valve with round inlet and square outlet,
with grey cast housing
Reject valve
RQS
Reject valve with round inlet and square outlet, in
stainless steel housing
Reject valve
RQSV
Reject valve with round inlet and square outlet, in
stainless steel housing, with hardened valve plate
and wearing ring
Reject valve
AEQ
Reject valve with square inlet and outlet, with
sealing frame in inlet, in grey cast or stainless
steel housing
Reject valve
SAQ
Valve with square inlet and outlet, in stainless
steel housing
Reject valve
TA
Reject valve with round inlet and outlet, with 2
valve plates, in steel or stainless steel housing
Reject valve
TAQ
Reject valve with square inlet and outlet, with 2
valve plates, in stainless steel housing
Reject valve
TRE
Reject valve with square inlet and outlet, with 2
valve plates, valve plates aligned at angle below
15°, in stainless steel housing
Reject valve
GGNA
Gate valve with one-piece spheroidal graphite
iron housing
Shut-off valve
EGNA
Gate valve with one-piece cast stainless steel
housing
Shut-off valve
In principle, the instructions in this installation and operating manual
also apply to LOHSE valve types other than those listed above.
Please contact the manufacturer for additional data sheets.

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1.5.2 Actuator types for COMPACT valves and reject valves
Series Description
H
Handwheel drive with rising stem
Hns
Handwheel drive with non-rising stem
VC
Double-acting pneumatic cylinder, stroke adjustable in opening and
closing direction, NAMUR interface, T- and C-slot for solenoid switch
VM
Double-acting pneumatic cylinder, stroke adjustable in opening and
closing direction
PZ
Double-acting pneumatic cylinder, stroke adjustable in closing direction
only
VMV
"CLOSE"
Double-acting pneumatic cylinder, stroke adjustable across entire
stroke length in closing direction
VMV
"OPEN"
Double-acting pneumatic cylinder, stroke adjustable across entire
stroke length in opening direction
VMF
"CLOSE"
Single-acting pneumatic cylinder, with spring return mechanism in
closing direction
VMF
"OPEN"
Single-acting pneumatic cylinder, with spring return mechanism in
opening direction
HH
Stroke lever
E
Electrical actuator
K
Chain wheel actuator
GK
Bevel gear actuator
X
Square head actuator
Y
Hydraulic cylinder
Z
prepared for E-actuator / transmission
M
increasing spindle and connecting sleeve
S
quick-acting lever
BG
Handle (only CPD)

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Safety
2 Safety
2.1 General safety instructions
2.1.1 General risks
Danger sources posing general risks:
•Mechanical danger sources
•Electrical danger sources
2.1.2 Risks in connection with electrical equipment
DANGER
Risk in connection with electrical equipment
As there is a constant humid atmosphere in the production process,
electrically operated valves are a source of danger.
Danger: electric s
hock
•Observe the relevant regulations regarding the use of electrical
devices in wet rooms.
2.1.3 Operation in explosive atmosphere
CAUTION
Operation in explosive atmosphere
Risk of explosion of ungrounded valves
•After installation, the valve must be integrated into the general
grounding circuit!
2.1.4 Preconditions for operation
The valve must only be operated
•if it is in proper working order
•for the intended purpose
•with awareness of the associated dangers and in accordance with
the instructions in this manual
•if all safety and EMERGENCY-STOP devices are in place and
working properly
Malfunctions and faults that might impair the safety of the valve must
be eliminated without delay.

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DANGER
Substantial risk of injury when reaching into by hand
While the valve
is in operation, do not attempt to reach into it or clean
it by hand and/or with an implement, as this could cause serious injury
and/or damage to property.
•Observe safety instruction (see 2.9).
2.1.5 Residual risks
DANGER
Risk of injury from shearing, crushing and snagging
Danger by moving valve parts that might have become accessible
when covers are removed for function checks or similar purposes and
by automatically actuated valves.
•Do not reach with your hands or fingers into the range of the
moving valve parts.
DANGER
Risk of injury from burning and scalding
on machines and systems operated at high temperatures (above 40°
C):
operating temperature >= 70° C:
Short-term skin contact (approx. 1 sec.) with the surface of the
valve or machine components can result in burns (DIN EN ISO
13732-1)
operating temperature = 65° C:
Longer skin contact (approx. 3 sec.) with the surface of the valve or
machine components can result in burns (DIN EN ISO 13732-1).
operating temperature
55° C - 65° C:
Longer skin contact (approx. 3 to 10 sec.) with the surface of the
valve or machine components can result in burns (DIN EN ISO
13732-1).
•Wear personal protective equipment.
2.1.6 State of technology
Valves from MARTIN LOHSE GmbH are designed and manufactured
according to the latest state of technology and the relevant technical
safety standards. There remains however a residual risk to life and
limb of the operator or third parties, and a risk of damage to the valve
and other property,
•if the valve operated for a purpose other than that intended
•if the valve is operated by persons who are not suitably qualified
(see chapter 1.3)
•if the valve has been modified
•if the safety instructions in this manual are not strictly adhered to

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Safety
2.2 Proper use
LOHSE valves are shut-off valves or as regulating valves designed for
fluid media and for operating conditions as outlined in 2.2.1 and 2.2.2.
The properties of the medium must be taken into account when
choosing the valve material.
In exceptional cases, certain valve types might be used for gaseous
media such as oxygen and compressed air. If you wish to use the
valves for such media, you must first contact MARTIN LOHSE GmbH.
Valves and connections for gaseous media must be completed free of
grease.
The valve is actuated by means of a handwheel, pneumatic cylinder,
stroke lever, electrical actuator, chain wheel, quick-release lever,
bevel gear mechanism, square head of hydraulic cylinder.
LOHSE valves must be actuated with original LOHSE actuators or
actuators approved by MARTIN LOHSE GmbH. LOHSE actuators
must only be used in conjunction with LOHSE valves.
2.2.1 Maximum permissible operating temperature
Type designation Max. operating temperature
CNA, CNAA, CNA-Bi, CBS, CBSA, CDS,
CDSV, CDSA, CDSR, EGNA, GGNA
120° C
CGNA, CGBS, CGDS, CAW, CDSQ, CPD,
NAQ, RQS, RQSV, AEQ, SAQ, TA, TRE, TAQ
80° C
The above temperature values are guide values. Always observe the specifications in
the order confirmation or documentation.
Valves for higher operating temperatures are available on request!

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2.2.2 Maximum permissible operating pressure p [bar]
Type designation
DN 25 – 300 (nominal Ø in mm)
25
32
40
50
65
80
100
125
150
200
250
300
CNA / CNAA / CNA-Bi 8 8 8 8 8 8 8 8 6
CAW 8 8 8 6 6 6 6 4 4
CBS / CBSA 8 8 8 8 8 8 8 8 6
CGNA / CGBS 6 6 6 6 6 6 6 6 4
CDS / CDSV / CDSA / CDSR 8 8 8 8 8 8 8 8 8 8 8 6
CGDS 6 6 6 6 6 6 6 4 4
CDSQ 4
CPD 2 2 2 2 2 2 2
NAQ / RQS / RQSV 8 8 8 8 4
AEQ 8 8 8 4
SAQ
TA 4 4 4 4 4 2
TRE 4 4 4 2
TAQ 4 4 4 2
EGNA / GGNA 10 10 10 10 10 10 10 8 6
Valves for higher operating pressures are available on request!
For special valves, observe the maximum operating pressures in the order confirmation or documentation!
Type designation
DN 350 – 1400 (nominal Ø in mm)
350
400
450
500
600
700
800
900
1000
1200
1400
1600
CNA / CNAA / CNA-Bi 6 6 4 4 4 2,5 2,5 2,5 1,5 1,5 1,5
CAW 2,5 2,5 2,5 2,5 2,5 1,5 1,5 1,5 1,5
CBS / CBSA 6 6 4 4 4
CGNA / CGBS 4 4
CDS / CDSV / CDSA / CDSR 6 6 4 4 4 2,5 2,5 2,5 1,5 1,5 1,5
1,5
CGDS 4 4
CDSQ 4 2
CPD 2 2
NAQ / RQS / RQSV 4 2 2 2
AEQ 4 2 2 2 1 1
SAQ 2,5 2 2 2 2
TA 2 2 2 2 2
TRE 2 2 2
TAQ 2 2 2
EGNA / GGNA 6 4 4 4 3
Valves for higher operating pressures are available on request!
For special valves, observe the maximum operating pressures in the order confirmation or documentation!

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Safety
2.3 Improper use
Any use of the valves for purposes other than that intended is deemed
improper. MARTIN LOHSE GmbH shall not be liable for damage to
persons or property resulting from improper use.
2.4 Modifications
CAUTION
Modifications
Do not make any modifications to
the valve that might impair its
safety.
It is forbidden to remove type plates and markings!
2.5 Inspections
Regularly instruct the operating personnel in the safe and proper use
of the valve, with reference to the installation and operating manual.
Carry out regular inspections to ensure that all instructions are
adhered to.
2.6 Personal protective equipment
If required, wear personal protective equipment.
The personal protective equipment consists of
•safety footwear
•protective gloves
•safety goggles
•hard hat
•hearing protection
The personal protective equipment must be suitable for the
pressurised medium.
2.7 Noise protection
The valve produces noise at a sound pressure level of less than 70
dB(A).
If combined with a control valve, the continuous sound pressure level
might be higher, depending on the type of the valve.
2.8 Additional regulations
For the operation of the valve, all internal and statutory safety and
accident prevention regulations must be adhered to.

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2.9 Safety instructions for valves and actuators
DANGER
Risk of injury from crushing
Single-acting actuators might move the valve to its open and close
position when the compressed air supply is closed or disconnected.
•Do not reach with your hands or fingers into the range of the
moving valve parts unless the actuator has reached its end
position.
Automated actuators that are electrically powered might move the
valve to its open or closed position.
•
Before carrying out any maintenance or repair work on valves with
actuators, and before installing or removing the valve in the
pipeline system, disconnect the actuator from the power supply.
WARNING
Risk of injury on hot or cold surfaces, risk to health from
hazardous substances
All personnel working with or on the valve, including installation,
operation and repair of the valve, must be suitably trained. This
helps eliminate the risk of damage to property or injury to persons.
Ensure that all installation and assembly personnel are familiar with
•the installation and removal of the valve in a process line
•special and potential risks associated with the process
•most important safety instructions
•risk in connection with the handling of pressurised equipment as
well as hot and cold surfaces
•risk in connection with the handling of hazardous substances
WARNING
Risk of injury from escaping media
If the design limits of the valve are exceeded, there is a risk of
damage to the valve and of uncontrolled release of the pressurised
medium
•Do not exceed the design limits of the valve!

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Safety
DANGER
Risk of injury from pressurised valves
The dismantling of pressurised valves can result in uncontrolled
depressurisation. Before carrying out any work on the valve, insulate
it from the pipeline system, depressurise the valve and remove all
medium.
•Do not dismantle the valve or remove it from the pipe unless the
valve is fully depressurised.
DANGER
Risk of injury from hazardous substances
•Inform yourself of the properties of the medium and any
associated risks. Protect yourself and the environment from
hazardous substances.
•Observe the safety instructions in the material safety data sheets
of the medium manufacturer.
•Ensure that no medium is discharged into the pipeline during
maintenance work.
•Wear personal protective equipment that is suitable to protect you
against the pressurised medium.
DANGER
Risk of injury from suspended loads
When transporting the valve, observe its weight.
Never lift the valve by its accessories, attached components or
connected pipes. Always use suitable lifting gear, taking into
account the centre of gravity of the valve.
•Do not stand under suspended loads.
WARNING
Risk of injury from heavy objects
Observe the weight of the valve.
•Always use suitable transport and lifting gear.
CAUTION
Risk of damage to valve from use of inadmissible actuators
The use of inadmissible actuators can cause damage to the valve.
•Use only original LOHSE actuators or actuators approved by
LOHSE.

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3 Transport and storage
DANGER
Risk of injury from heavy objects
Observe the weight of the valve.
•Always use suitable transport and lifting gear.
DANGER
Risk of injury from crushing if valve topples over
Observe the size of the valve.
•Always use suitable transport gear and secure the valve against
toppling over.
DANGER
Risk of injury from suspended loads
When transporting or otherwise handling the valve, observe its weight.
•Do not stand under suspended loads
Wear personal protective equipment consisting of
•hard hat
•safety footwear
•protective gloves
3.1 Suitable slings and transport means
When transporting the valve, observe its weight. The valve must be
transported with suitable transport gear.

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Transport and storage
Valve
[DN] Slings/transport means with load capacity [kg]
<= 500 1000
<= 800 3000
<= 900 6000
<= 1200 10000
> 1200 15000
For size of valve, see dimension sheet.
3.2 Transport
Upon receipt of the delivery, inspect the LOHSE valve for damage
caused during transport.
CAUTION
Damage to valve
Do not lift the valve by the actuator mechanism.
•To raise the valve, attach suitable slings only at the points
provided on the base body (see examples). The valve must be
properly balanced when lifted (observe centre of gravity).
The pictures below show examples of attachment points on the valve
body.
Attachment points at the housing

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In addition to the attachment points shown here, you can attach the
valve at the points described in chapter 4.1.
Attachment points with eyelet
bolts at the flange