LOHSE CNA Series Operating And Instruction Manual
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LOHSE CNA Series Operating And Instruction Manual

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

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Summary of Contents for LOHSE CNA Series

  • Page 1 Operating and Instruction Manual Valves and actuators Version 2.1.2 Translation of the original instructions...
  • Page 2 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.

  • Page 3: Table Of Contents

    Contents About this installation and operating manual .......7 General notes ................7 Warning signs and symbols ...........7 Target group ................8 Filing of installation and operating manual ......8 Validity ...................9 1.5.1 Valve types ................9 1.5.2 Actuator types for COMPACT valves and reject valves ..10 Safety ..................
  • Page 4 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...
  • Page 5 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"...
  • Page 6 Repair ..................77 General notes ..............77 Disposal ................77 Appendix ................. 78 Recommended lubricants for valves and actuators ... 78 Operating and Instruction Manual Contents EN Version 2.1.2...

  • Page 7: About This Installation And Operating Manual

    • 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.

  • Page 8: Target Group

    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 •...

  • Page 9: Validity

    Gate valve with one-piece cast stainless steel Shut-off valve housing 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. Operating and Instruction Manual 9/78 EN Version 2.1.2...

  • Page 10: Actuator Types For Compact Valves And Reject Valves

    1.5.2 Actuator types for COMPACT valves and reject valves Series Description Handwheel drive with rising stem Handwheel drive with non-rising stem Double-acting pneumatic cylinder, stroke adjustable in opening and closing direction, NAMUR interface, T- and C-slot for solenoid switch Double-acting pneumatic cylinder, stroke adjustable in opening and closing direction Double-acting pneumatic cylinder, stroke adjustable in closing direction only...

  • Page 11: Safety

    Safety 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.

  • Page 12: Residual Risks

    • 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...

  • Page 13: Proper Use

    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.

  • Page 14: Maximum Permissible Operating Pressure P [Bar]

    2.2.2 Maximum permissible operating pressure p [bar] Type designation DN 25 – 300 (nominal Ø in mm) CNA / CNAA / CNA-Bi CBS / CBSA CGNA / CGBS CDS / CDSV / CDSA / CDSR CGDS CDSQ NAQ / RQS / RQSV EGNA / GGNA Valves for higher operating pressures are available on request! For special valves, observe the maximum operating pressures in the order confirmation or documentation!

  • Page 15: Improper Use

    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. Modifications CAUTION Modifications Do not make any modifications to the valve that might impair its safety.

  • Page 16: Safety Instructions For Valves And Actuators

    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.
  • Page 17 • 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. Operating and Instruction Manual 17/78 EN Version 2.1.2...

  • Page 18: Transport And Storage

    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. •...

  • Page 19: Transport

    10000 > 1200 15000 For size of valve, see dimension sheet. 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).
  • Page 20 Attachment points with eyelet bolts at the flange In addition to the attachment points shown here, you can attach the valve at the points described in chapter 4.1. 20/78 Operating and Instruction Manual Transport and storage EN Version 2.1.2...

  • Page 21: Storage

    Storage Store the valve on a suitable support in a dry and clean room. Protect the valve from dirt. Packing unit must be replaced after storing longer than 12 months. Operating and Instruction Manual 21/78 EN Version 2.1.2 Transport and storage...

  • Page 22: Installation / Dismantling

    Installation / dismantling Installation instructions Before installing the valve, remove the transport securing devices (protective plug). The valve is mounted with screws from pipe flange to pipe flange and also with screws in the threaded holes of the housing into the pipe – in compliance with the product specifications listed in 4.1.2- 4.1.6.6.

  • Page 23: Installation Recommendation

    4.1.1.1 LOHSE COMPACT valve If the mounting position permits, a LOHSE COMPACT valve of the series CNA, CNAA, CNA-Bi, CGNA, CBS, CBSA, CGBS, CAW should be installed with the actuator pointing upward.

  • Page 24: Lohse Reject Valve

    4.1.1.3 LOHSE reject valve If the mounting position permits, a LOHSE dirt trap of the series NAQ, RQS, RQSV, AEQ, SAQ, TA, TAQ, TRE should be installed horizontally. Floor If the mounting position does not permit horizontal installation, vertical installation is tolerable.
  • Page 25 Floor Orthogonal installation is NOT RECOMMENDED! Floor Operating and Instruction Manual 25/78 EN Version 2.1.2 Installation / dismantling...

  • Page 26: Installation Between Flanges

    4.1.2 Installation between flanges Ensure that the sealing surfaces of the flanges are clean and not damaged. Install the valve without any stress on the valve (do not stress the housing when inserting the bolts in the flange sections). The flanges of the pipeline must be aligned parallel to the valve.

  • Page 27: Metric Threads

    4.1.4.1 Metric threads 100 125 150 200 250 300 350 400 450 500 600 700 Ø Bolt Tightening torque 125 Nm 240 Nm 340 Nm 500 Nm 1000 1200 1400 1600 Ø Bolt Tightening torque 700 Nm 900 Nm 1200 Nm 1400 Nm 2000 Nm 4.1.4.2...

  • Page 28: Direction Of Pressure / Flow

    4.1.5 Direction of pressure / flow • When installing valves with direction arrows on the housing or bracket, observe the direction of installation. • On all valve types (see 1.5), with the exception of CNA and CNAA, the direction arrow indicates the direction of flow of the medium. P1 ≥...

  • Page 29: Selecting Correct Bolt Length

    4.1.6.1 Selecting correct bolt length The length of the bolt for threaded holes is calculated as follows: • Usable depth of thread (t • Thickness of flange seal • Thickness of washers • Flange thickness, rim thickness, gasket thickness Operating and Instruction Manual 29/78 EN Version 2.1.2 Installation / dismantling...

  • Page 30: Flange Bores According To Din En 1092-1 Pn10

    4.1.6.2 Flange bores according to DIN EN 1092-1 PN10 Valve type: CNA, CNAA, CNA-Bi, CAW, CBS, CBSA, CGNA, CGBS Threaded bore shapes with usable depth of thread 30/78 Operating and Instruction Manual Installation / dismantling EN Version 2.1.2...
  • Page 31 Nominal diameter DN 50 – 300 Nominal diameter DN [mm] Bore circle Ø k [mm] ● Number of threaded bores ○ Number of through bores Thread size M Usable depth of thread t [mm] Nominal diameter DN 350 – 1000 Nominal diameter DN [mm] 1000 Bore circle Ø...
  • Page 32 Valve type: CDS, CDSV, CDSA, CDSR, CGDS, CPD, TA Threaded bore shapes with usable depth of thread 32/78 Operating and Instruction Manual Installation / dismantling EN Version 2.1.2...
  • Page 33 Nominal diameter DN 50 – 300 Nominal diameter DN [mm] Bore circle Ø k [mm] ● Number of threaded bores ○ Number of through bores Thread size M Usable depth of thread t [mm] all types, except TA + CPD Valve type TA Valve type CPD Nominal diameter DN 350 –...
  • Page 34 Valve type: EGNA, GGNA Threaded bore shapes with usable depth of thread Nominal diameter DN 50 – 300 Nominal diameter DN [mm] Bore circle Ø k [mm] ● Number of threaded bores ○ Number of through bores Thread size M Usable depth of thread t [mm] Nominal diameter DN 350 –...

  • Page 35: Flange Bores According To Lohse Standard With Metric Thread

    4.1.6.3 Flange bores according to LOHSE standard with metric thread Valve type: NAQ, RQS, RQSV Inlet side according DIN EN 1092-1 PN10: Outlet side according LOHSE standard: Flange bores and internal dimensions of flange outlet end: Threaded bore shapes with...
  • Page 36 Nominal diameter DN 150 – 500 Nominal diameter DN [mm] Bore circle Ø k [mm] ● Number of threaded bores 8 bzw. 4 8 bzw. 4 ○ Number of through bores Thread size M Distance between bores I [mm] Usable depth of thread t [mm] L [mm] B [mm] a [mm]...
  • Page 37 Valve type: Inlet side according LOHSE standard: Outlet side according LOHSE standard: Flange bores and internal dimensions of flange outlet end: Operating and Instruction Manual 37/78 EN Version 2.1.2 Installation / dismantling...
  • Page 38 Threaded bore shapes with usable depth of thread Nominal diameter DN 150 – 600 Nominal diameter DN [mm] ‚Bore circle Ø k [mm] ● Number of threded bores ○ Number of through bores Thread size M Distance between bores I [mm] Usable depth of threads t [mm] Angle w [°] 11,25...

  • Page 39: Nominal Diameter Dn [Mm]

    Valve type: TAQ, TRE according LOHSE standard Threaded bore shapes with usable depth of thread Nominal diameter DN 150 – 600 Nominal diameter DN [mm] ● Number of threaded bores ○ Number of through bores Thread size M Distance between bores I [mm] 126.5...
  • Page 40 Valve type: Inlet side according LOHSE standard: Outlet side according LOHSE standard: Threaded bore shapes with usable depth of thread 40/78 Operating and Instruction Manual Installation / dismantling EN Version 2.1.2...

  • Page 41: Nominal Diameter Dn [Mm] 350 400 450 500 600

    Inlet side according LOHSE standard: Nominal diameter DN 400 – 800 Nominal diameter DN [mm] ● Number of threaded bores ○ Number of through bores Thread size M Distance between bores I [mm] Distance between bores J [mm] Distance between bores K [mm]...

  • Page 42: Flange Bores According To Ansi B 16.5 Class 150 ≥ Dn 700: Ansi B 16.47 Class 150

    4.1.6.4 Flange bores according to ANSI B 16.5 class 150 ≥ DN 700: ANSI B 16.47 class 150 Valve type: CNA, CNAA, CNA-Bi, CAW, CBS, CBSA CGNA, CGBS, CDS, CDSV, CDSA, CDSR, CGDS, TA Threaded bore shapes with usable depth of thread 42/78 Operating and Instruction Manual Installation / dismantling...
  • Page 43 Nominal diameter DN 50-300 Nominal diameter DN [mm] Nominal diameter [inch] Bore circle Ø k [inch] ● Number of threaded bores ○ Number of through bores Thread size G [inch] Usable depth of thread t [inch] ¾ all types, except TA Valve type TA Nominal diameter DN 350-1000 1000...
  • Page 44 Valve type: EGNA, GGNA Threaded bore shapes with usable depth of thread Nominal diameter DN 50 – 300 Nominal diameter DN [mm] Nominal diameter [inch] Bore circle Ø k [inch] ● Number of threaded bores ○ Number of through bores Thread size G [inch] Usable depth of thread t [inch]...

  • Page 45: Flange Bores According To Lohse Standard With Unc Thread

    4.1.6.5 Flange bores according to LOHSE standard with UNC thread Valve type: NAQ, RQS, RQSV Inlet side according ANSI B16.5 Class 150: Outlet side according LOHSE standard: Flange bores and internal dimensions of flange outlet end: Threaded bore shapes with...
  • Page 46 Nominal diameter DN 150 - 250 Nominal diameter DN [mm] Nominal diameter [inch] Bore circle Ø k [inch] ● Number of threaded bores 8 bzw. 4 ○ Number of through bores Thread size G [inch] Usable depth of thread t [inch] L [mm] B [mm] a [mm]...
  • Page 47 Valve type: Inlet side according LOHSE standard: Outlet side according LOHSE standard: Flange bores and internal dimensions of flange outlet end: Threaded bore shapes with usable depth of thread Operating and Instruction Manual 47/78 EN Version 2.1.2 Installation / dismantling...

  • Page 48: Additional Flange Bore Dimensions

    Nominal diameter DN 150 – 350 Nominal diameter DN [imm] Nominal diameter [inch] ½ Bore circle Ø k [inch] ● Number of threaded bores ○ Number of through bores Thread size G [inch] Distance between bores I [inch] Usable depth of thread t [inch] L [mm] B [mm] a [mm]...

  • Page 49: Maintenance

    Maintenance General LOHSE valves are virtually maintenance free and easy to service. The maintenance tasks vary depending on the valve type and the operating conditions. To ensure optimum operation of the valve and a long service life, it must be regularly serviced. Regularly inspect the valve, the attached actuator and all accessories to ensure safe and trouble-free operation.

  • Page 50: Cleaning Of The Valve

    Cleaning of the valve Dirt can impair the operation of the valve and must therefore be removed. Clean moving valve parts under consideration of safety instructions. Lubrication of the valve Moving parts (valve plate, stem) must be lubricated every 30 days with a product that is suitable for the operating range, conditions and medium.

  • Page 51: Type Plate

    If it is not possible to seal the leak by retightening the bolts, replace the packing seal (for details, see service instructions for the respective valve type). Type plate Type designation L number When ordering wear and spare parts, always quote the type designation and the L number (see type plate).

  • Page 52: Actuators For Compact Valves And Reject Valves

    Actuators for COMPACT valves and reject valves Handwheel actuator 6.1.1 Handwheel, non-rising "Hns" Attach a barrel handle to the handwheel of valves of type CNAHns, CBSHns and CAWHns up to DN Stem nut non-rising stems (left-hand trapezoidal thread) Bracket plate for the fixture and bearing of the handwheel on the valve bracket...

  • Page 53: Handwheel, Rising "H

    Nominal diameter DN Handwheel Ø Weight 360 mm 6.2 kg 6.1.2 Handwheel, rising "H" Handwheel Stem nut Bracket plate for the fixture and bearing of the handwheel on the valve bracket Rising stem (left-hand trapezoidal thread) with stop sleeve Valid for all valve types Nominal diameter DN Handwheel Ø...

  • Page 54: Maintenance

    LOHSE pneumatic cylinders LOHSE pneumatic cylinders are controlled with compressed air at pressures of between 5 and 7 bar (6 bar*) through a multi-port valve. The control valve can be operated manually, electrically (solenoid valve) or pneumatically.

  • Page 55: Pneumatic Cylinder Vc (Double-Acting)

    NAMUR interface in accordance with VDI/VDE slot for solenoid switch LOHSE VC pneumatic cylinders are double-acting cylinders. In closing direction, the stroke can be adjusted with the adjusting nut (5). In opening direction, it can be adjusted with the adjusting screw (4).

  • Page 56: Pneumatic Cylinder Vm (Double-Acting)

    Cylinder rod Air connection (extend) Air connection (retract) LOHSE VM pneumatic cylinders are double-acting cylinders. In closing direction, the stroke can be adjusted with the adjusting nut (5). In opening direction, it can be adjusted with the adjusting screw (4).

  • Page 57: Pneumatic Cylinder Pz (Double-Acting)

    Cylinder rod with fork head Air connection (extend) Air connection (retract) LOHSE PZ pneumatic cylinders are equipped with a fixed stop in closing direction (no adjusting nut). In opening direction, their stroke can be adjusted by means of the adjusting screw (4).

  • Page 58: Pneumatic Cylinder Vmv "Close

    6.2.4.1 Pneumatic cylinder VMV "CLOSE" Adjusting tube Air connection (extend) Air connection (retract) The stroke can only be adjusted, if the valve is fully opened. 1 Loosen nut (1). 2 Adjust adjusting tube (2). • Turn adjusting tube clockwise: the stroke in closing direction of the valve is increased.

  • Page 59: Pneumatic Cylinder Vmv "Open

    LOHSE VMF pneumatic cylinders are single-acting cylinders that are closed or opened by spring force. LOHSE VMF pneumatic cylinders are factory-set and sealed with a seal for safety reasons. If the seal is missing or damaged, it is forbidden to operate the cylinder! Sizes: Ø...

  • Page 60: Pneumatic Cylinder Vmf "Spring-Closing

    Stroke: adjusted to suit valve type and size 6.2.5.1 Pneumatic cylinder VMF "spring-closing" When not pressurised, the cylinder rod is fully extended. 60/78 Operating and Instruction Manual Actuators for COMPACT valves and reject valves EN Version 2.1.2...

  • Page 61: Pneumatic Cylinder Vmf "Spring-Opening

    6.2.5.2 Pneumatic cylinder VMF "spring-opening" When not pressurised, the cylinder rod is fully retracted. 6.2.6 Maintenance DANGER Risk of injury from pressurised pneumatic cylinders The moving cylinder rod of a pressurised pneumatic cylinder poses a risk of injury! • Before carrying out maintenance or repair work on the pneumatic cylinder, disconnect the pneumatic lines.

  • Page 62: Air Consumption

    6.2.8 Air consumption Formula for the calculation of the air consumption in double-acting and single acting pneumatic cylinders (VM, PZ, VMV, VMF) 1.033 + P ────── Q [Nl/stroke] = x piston surface [dm²] x stroke [dm] 1.033 P = operating pressure [bar] Q = air volume [normal litre / stroke] 62/78 Operating and Instruction Manual...
  • Page 63 CNAP CBSP CDSP/CDSVP/CDSAP/CDSRP Cyl. Ø Stroke Cyl. Ø Stroke Cyl. Ø Stroke [mm] [mm] [mm] [Nl/stroke] [mm] [mm] [mm] [Nl/stroke] [mm] [mm] [mm] [Nl/stroke] p=6 bar p=6 bar p=6 bar 11,0 11,0 11,2 13,0 13,0 21,8 28,7 28,7 28,8 35,6 35,6 55,6 42,7...

  • Page 64: Closing Force

    RQSP / NAQP AEQP TREP Cyl. Ø Stroke Cyl. Ø Stroke Cyl. Ø Stroke [mm] [mm] [mm] [Nl/stroke] [mm] [mm] [mm] [Nl/stroke] [mm] [mm] [mm] [Nl/stroke] p=6 bar p=6 bar p=6 bar 20,2 22,5 77,6 27,7 29,3 103,5 14,2 52,8 58,8 129,4 17,8...

  • Page 65: Lever Drive

    Lever drive 6.3.1 Design Stroke lever housing Transport lever Transport rod Locking lever screw 6.3.2 Function The valve is gradually closed and opened by moving the transport lever up or down respectively. The stroke lever must subsequently be locked with the lever locking screw (not self-locking). The stroke lever mechanism can be repositioned on the valve in steps of 45°.

  • Page 66: Electrical Actuator

    Electrical actuator In principle, the valves can be operated with all conventional electrical actuators. The technical data in the following tables refers to the AUMA model designed for 400 V / 50 Hz. The stem tube is delivered separately and must be attached to the actuator before it can be commissioned.

  • Page 67: Electrical Actuators For Cna, Cnaa, Cna-Bi, Cgna

    6.4.1 Electrical actuators for CNA, CNAA, CNA-Bi, CGNA Actuator type Torque Actuating time Power (AUMA) opening closing SA 07.2 A45 30 Nm 20 Nm 17.3 sec 0.10 kW SA 07.2 A45 30 Nm 20 Nm 24.4 sec 0.10 kW SA 07.2 A45 30 Nm 20 Nm 29.7 sec...

  • Page 68: Electrical Actuators For Caw

    6.4.2 Electrical actuators for CAW Actuator type Torque Actuating time Power (AUMA) opening closing SA 07.2 A45 30 Nm 20 Nm 17.3 sec 0.10 kW SA 07.2 A45 30 Nm 20 Nm 22.4 sec 0.10 kW SA 07.2 A45 30 Nm 20 Nm 27.3 sec 0.10 kW...

  • Page 69: Electrical Actuators For Cds, Cdsv, Cdsa, Cdsr, Cdsq, Cgds

    • The stem must be cleaned and lubricated every 30 days with a product that is suitable for the operating range, conditions and medium. 6.4.7 Note Actuators supplied by MARTIN LOHSE GmbH are factory-set. Sprocket wheel (for DIN 766 A round steel chains) Operating and Instruction Manual 69/78 EN Version 2.1.2...

  • Page 70: Chain Wheel Actuator

    Chain wheel actuator Stem nut Safety device Bracket plate for the fixture and bearing of the sprocket wheel and the safety device on the valve bracket rising stem Nominal diameter DN Sprocket wheel Ø for all COMPACT and reject valves 260 mm 260 mm 260 mm...

  • Page 71: Maintenance

    • Turn anticlockwise: valve "OPEN" 6.5.3 Maintenance • The stem must be cleaned and lubricated every 30 days with a product that is suitable for the operating range, conditions and medium. Bevel gear actuator In principle, the valves can be operated with all conventional bevel gear actuators.

  • Page 72: Function

    6.6.2 Function • The actuators are operated manually. • Turn clockwise: valve "CLOSED" • Turn anticlockwise: valve "OPEN" 6.6.3 Maintenance • The stem must be cleaned and lubricated every 30 days with a product that is suitable for the operating range, conditions and medium.

  • Page 73: Hydraulic Cylinder

    6.8.2 Maintenance • According to manufacturer instructions. 6.8.3 Note Hydraulic cylinders supplied by MARTIN LOHSE GmbH are adjusted to suit the respective valve type. Operating and Instruction Manual 73/78 EN Version 2.1.2 Actuators for COMPACT valves and reject valves...

  • Page 74: Troubleshooting

    Troubleshooting Problem Possible cause Remedy Packing not tight Retighten packing, lubricate valve plate External leakage from Replace packing, clean and grease the packing chamber Packing defective valve plate Object jammed between valve plate and Open valve slightly, remove jammed housing object and repeat closing procedure Sealing in flow-through section defective Dismantle valve and replace seals...
  • Page 75 Problem Possible cause Remedy Dismantle valve and clean it; lubricate Valve blocked and/or valve plate dirty valve plate Loosen flange bolts, especially through Flange bolts too tight bolts Remove flange bolts from threaded bores, check length and replace, if Flange bolts too long necessary (for depth of thread, see attached label) Check the inner shells for damage...
  • Page 76 Problem Possible cause Remedy Remove flange bolts from threaded bores, check length and replace, if Flange bolts too long necessary (for depth of thread, see attached label) Lubricant washed off Clean and lubricate Following the instructions in the Insufficient fastening operating manual, fasten with suitable means at the corresponding points Manually...

  • Page 77: Repair

    Repair In the event of a return or repair, please contact MARTIN LOHSE GmbH. General notes When returning a valve for servicing or repair, please always indicate the pressurised medium for which it is used. WARNING Residue of hazardous substances Residue of hazardous substances can affect the health of persons.

  • Page 78: Appendix

    Recommended lubricants for valves and actuators The table below contains a list of lubricants recommended by MARTIN LOHSE GmbH for LOHSE valves and actuators. If you wish to use other lubricants, you must first contact MARTIN LOHSE GmbH. Area of application...

This manual is also suitable for:

Cna-bi seriesCnaa seriesCgbs seriesCbsa seriesCds seriesCaw series ... Show all

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