KM20/21. FLANGED BALL VALVES Installation, Operation and Maintenance Manual DEFINITION OF TERMS All information within this manual is relevant to the safe operation and proper care of your Kugelhahn Müller valve. Please understand the following examples of information used throughout this manual. SAFETY STATEMENTS The terms DANGER, WARNING, CAUTION, and NOTICE are used in this document to prevent unwanted consequences.
KM20/21. FLANGED BALL VALVES Installation, Operation and Maintenance Manual INTRODUCTION NOTICE Failure to follow these procedures could affect product warranty. Read and follow these instructions carefully and keep this manual in a safe place for future reference. Read and follow these instructions carefully and keep this manual in a safe place for future reference.
KM20/21. FLANGED BALL VALVES Installation, Operation and Maintenance Manual VALVE IDENTIFICATION NOTICE > Ensure the box is not damaged externally. > Remove the valve from the packaging and check for any damage to the valve and its components during transit. >...
NOTICE Failure to observe this section <Intended Use> constitutes gross negligence and releases the manufacturer, Kugelhahn Müller GmbH or Bray International, from its product liability. In case of any questions, please contact the manufacturer. See back page for contact details.
KM20/21. FLANGED BALL VALVES Installation, Operation and Maintenance Manual WARNING When using this product in hazardous environments, the national directives and laws which apply in your country for hazardous areas must be followed. The specifications of the examination certificate valid in country of operation must be also observed. Work may only be done on the valve in an explosion-proof environment without pressure, cooled down and free of fluid.
KM20/21. FLANGED BALL VALVES Installation, Operation and Maintenance Manual QUALIFIED PERSONNEL NOTICE Failure to follow these procedures <Qualified Personnel> could affect product warranty. A qualified person (in terms of this document) is one who is familiar with the installation, commissioning, and operation of the device, and who has appropriate qualifications, such as: >...
KM20/21. FLANGED BALL VALVES Installation, Operation and Maintenance Manual HANDLING REQUIREMENTS WARNING A potential hazard exists with handling valves. Failure to handle valves properly may cause a valve to shift, slip or fall causing serious injury or death and/or equipment damage. Caution must be taken during handling to avoid this equipment passing over workers, or over any other place where a possible fall could cause injury or damage.
KM20/21. FLANGED BALL VALVES Installation, Operation and Maintenance Manual STORAGE NOTICE The packaging is designed to protect the valve only during shipping. If you are not installing the valve immediately after delivery, then you must store it according to these requirements. Failure to follow these procedures <Storage>...
Page 12
KM20/21. FLANGED BALL VALVES Installation, Operation and Maintenance Manual 7.2.3 End protectors shall remain on the valve ends to prevent the entrance of dirt, debris, or insects/wildlife and should only be removed at the time of valve installation. 7.2.4 Product shall remain in the original shipping container with the original packaging materials.
KM20/21. FLANGED BALL VALVES Installation, Operation and Maintenance Manual LIFTING WARNING A potential hazard exists with handling valves. Failure to handle valves properly may cause a valve to shift, slip or fall causing serious injury or death and/or equipment damage. CAUTION Under no circumstances should the hand lever be used during this operation.
KM20/21. FLANGED BALL VALVES Installation, Operation and Maintenance Manual MATERIAL OF CONSTRUCTION (cont.) KM21-T (PTFE PACKING) ITEM DESCRIPTION MATERIAL Body Stainless Steel (EN 1.4408) Carbon Steel (EN 1.0619) End Cap Stainless Steel (EN 1.4408) Carbon Steel (EN 1.0619) Ball Stainless Steel (EN 1.4404, EN 1.4408) Seat PTFE / 25% glass, PTFE / 50%, Virgin PTFE Stem...
KM20/21. FLANGED BALL VALVES Installation, Operation and Maintenance Manual MATERIAL OF CONSTRUCTION (cont.) KM21-O (O-RING SEALING SYSTEM) ITEM DESCRIPTION MATERIAL Body Stainless Steel (EN 1.4408) Carbon Steel (EN 1.0619) End Cap Stainless Steel (EN 1.4408) Carbon Steel (EN 1.0619) Ball Stainless Steel (EN 1.4404, EN 1.4408) Seat PTFE / 25% glass, PTFE / 50%, Virgin PTFE...
KM20/21. FLANGED BALL VALVES Installation, Operation and Maintenance Manual MATERIAL OF CONSTRUCTION (cont.) KM20-A (ASME DESIGN) ITEM DESCRIPTION MATERIAL Body Stainless Steel (ASTM A351 Gr. CF8M) Carbon Steel (ASTM A216 Gr. WCB) End Cap Stainless Steel (ASTM A351 Gr. CF8M) Carbon Steel (ASTM A216 Gr.
KM20/21. FLANGED BALL VALVES Installation, Operation and Maintenance Manual MATERIAL OF CONSTRUCTION (cont.) KM20-H (HEAT JACKET) ITEM DESCRIPTION MATERIAL Body Stainless Steel (EN 1.4408) Carbon Steel (EN 1.0619) End Cap Stainless Steel (EN 1.4408) Carbon Steel (EN 1.0619) Ball Stainless Steel (EN 1.4404, EN 1.4408) Seat PTFE / 25% glass, PTFE / 50%, Virgin PTFE Stem...
KM20/21. FLANGED BALL VALVES Installation, Operation and Maintenance Manual MATERIAL OF CONSTRUCTION (CONT.) KM20-HT (HIGH TEMPERATURE) ITEM DESCRIPTION MATERIAL Body Stainless Steel (EN 1.4408) Carbon Steel (EN 1.0619) End Cap Stainless Steel (EN 1.4408) Carbon Steel (EN 1.0619) Ball Stainless Steel (EN 1.4404, EN 1.4408) Seat Stainless Steel (1.4571), Antimony Impregnated Graphite Stem...
KM20/21. FLANGED BALL VALVES Installation, Operation and Maintenance Manual 10.2 VALVES WITH SPRING RETURN ACTUATORS 10.2.1 Fail Closed Assemblies 10.2.1.1 If the valve is supplied with an actuator, the ball valve is shipped in the full closed position (as no air pressure is present to compress the springs and open the ball).
KM20/21. FLANGED BALL VALVES Installation, Operation and Maintenance Manual 11.0 INSTALLATION & COMMISSIONING WARNING > Ensure to follow the section <Installation Consideration / Safety Instructions> as well as section <Installation & Commissioning>. > Ensure that the selected materials of the wetted parts of the ball valve are suitable for the line media.
Page 22
KM20/21. FLANGED BALL VALVES Installation, Operation and Maintenance Manual 11.1.8 Use water or compressed air to clean the valves. Place the opening of the valve perpendicular to the floor and clean it. Make sure that the dust is completely removed from the opening.
Page 23
KM20/21. FLANGED BALL VALVES Installation, Operation and Maintenance Manual CAUTION > If retrofitting an actuator it must be confirmed that the torque, direction of rotation, angle of actuation and the “OPEN” and CLOSED” travel stop settings are adjusted to suit the ball valve position.
KM20/21. FLANGED BALL VALVES Installation, Operation and Maintenance Manual 11.2 VALVE-ACTUATOR-ASSEMBLY CAUTION > Actuators supplied together with ball valves are adjusted to the operating data specified in the order. The “OPEN” and “CLOSED” travel stop settings shall not be changed without the permission of the manufacturer.
KM20/21. FLANGED BALL VALVES Installation, Operation and Maintenance Manual 11.3.6 > If the valve is marked with “Class” only, limit the test pressure [bar] to 0.077 x Class. (PS = maximum permissible operating pressure) 11.3.7 > If a leakage occurs at a valve, observe the section <Troubleshooting>.
KM20/21. FLANGED BALL VALVES Installation, Operation and Maintenance Manual 12.0 OPERATION AND MAINTENANCE WARNING > Verify line is depressurized before installing, removing, or repairing a valve or operator. > Do not pressurize the line without an operator on the valve. >...
KM20/21. FLANGED BALL VALVES Installation, Operation and Maintenance Manual 12.1.6 Valves with actuators should be checked for actuator-valve alignment. Misalignment will result in high operational torque and damage to valve stem and seals. 12.2 MAINTENANCE 12.2.1 Ball valves do not require regular maintenance. However, when checking the pipeline section at suitable intervals make sure that there is no leakage at the flange and screw connections of the valve body and at the stem seal.
KM20/21. FLANGED BALL VALVES Installation, Operation and Maintenance Manual 13.0 DISASSEMBLY/ASSEMBLY INSTRUCTIONS NOTICE > Failure to follow this section <Disassembly/Assembly> could affect product warranty. WARNING > Verify line is depressurized before disassembly. > Valve should be cycled to assure there is no pressure trapped in valve cavity.
KM20/21. FLANGED BALL VALVES Installation, Operation and Maintenance Manual 13.3 ASSEMBLY CAUTION Extreme care must be exercised during the adjustment of body screw to make sure that body screws are fully engaged. There should be at least one stud thread exposed beyond the flange on the body side and beyond the nut on the cap side.
KM20/21. FLANGED BALL VALVES Installation, Operation and Maintenance Manual 13.4 TESTING WARNING If not properly secured, the valve can become separated from the pressure source, resulting in possible injury. Always join the valve to flanges of the same pressure rating and secure with a full set of flange bolts.
KM20/21. FLANGED BALL VALVES Installation, Operation and Maintenance Manual 14.0 TROUBLESHOOTING NOTICE > Only original parts from Kugelhahn Müller GmbH may be installed. > If, after disassembly, it is found that the body and/or internal parts are not sufficiently resistant to the media, appropriate components made of suitable materials should be selected in consultation with Kugelhahn Müller GmbH.
Page 32
KM20/21. FLANGED BALL VALVES Installation, Operation and Maintenance Manual Malfunction > Check actuator unit and control commands. > If actuator and control system are OK, remove valve. > Observe section <Installation considerations/Safety instructions> and check the valve. > Repair is required if ball valve is damaged – see above. >...
Product information is provided on identification tag attached to device. 16.1 All products that are returned require a Return Merchandise Authorization (RMA). Contact a Bray representative to obtain authorization and shipping instructions. 16.2 The following information must be provided when submitting RMA.
KM20/21. FLANGED BALL VALVES Installation, Operation and Maintenance Manual APPENDIX B: CONFORMITY OF EU DIRECTIVES The current version of the Declaration of Conformity according to the applicable EC/EU Directives can be downloaded from the website. REQUIREMENT ACCORDING TO DIRECTIVE 2006/42/EC (FOR MACHINERY) 1.1.1 g) Intended use See Installation, Operation and Maintenance Manual.
Page 37
KM20/21. FLANGED BALL VALVES Installation, Operation and Maintenance Manual 1.7.4. Operating instructions The Installation, Operation and Maintenance Manual contains instructions on the operation of the valve during regular industrial use in accordance with the section <Intended Use> of this manual. Any necessary additional aspects to be considered for special use are the responsibility of the operator.
Need help?
Do you have a question about the KUGELHAHN MULLER KM20 and is the answer not in the manual?
Questions and answers