Related Manuals for CMO VALVES A Series
Summary of Contents for CMO VALVES A Series
- Page 1 K N I F E G A T E V A L V E - A S E R I E S INSTALLATION AND MAINTENANCE INSTRUCTION MANUAL manufacturing the valve you need...
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Page 2: Purpose And Scope
This document describes the installation, operation and maintenance instructions for CMO Valves A series unidirectional knife gate valves. A series knife gate valves are designed to handle various liquids with up to 4% suspended solids, controlling their fl ow, isolation and passage in pipelines within the specifi ed pressure and tem- perature range;... -
Page 3: Transport And Handling
• To prevent damage, especially to the anticorrosive protection, it is recommended to use soft straps or belts when lifting CMO valves knife gate valves. These straps must be fi tted around the top of body. • If the equipment is packed in wooden boxes, these must be provided with clearly marked holding areas where the slings will be placed when securing them. -
Page 4: Installation
• Drain all the line fl uid through the valve. For A series knife gate valves to be used in potentially explosive atmospheres (ATEX), 'Ex' approved hand tools • must be used during installation and maintenance, according to current regulations. - Page 5 In the case of blind fl anges, the bolts in the threaded boreholes will have a maximum depth (fi g. 5) and will never reach the bottom of the threaded hole (Distance P); please refer to the technical catalogue for the A Series.
- Page 6 - A SERIES SERIES A Series knife gate valves must be fi rmly installed in the duct where they are mounted. Whenever the joint to the duct is bolted, a sealing joint must be positioned between the duct and the knife gate valve to prevent any leakages.
- Page 7 • The A Series unidirectional knife gate valve does not have guides for the gate on the sides, and the larger the valve, the heavier the knife gate. In these positions, the knife gate can rub against the body during operation and stop it. For this reason it is a very important point to consider.
- Page 8 - A SERIES SERIES ASSEMBLY POSITIONS (vertical/slanted pipe) CMO Valves’ valves can be mounted in all positions, with the following guidelines and warnings: Positions numbers 1, 2, and 3: The actuator must be adequately supported in these positions to prevent...
- Page 9 PNEUMATIC ACTUATOR (double and single acting) CMO Valves pneumatic drives are designed to connect to a 6-bar pneumatic network, although these units can withstand up to 10 bar. The pressurised air used for the pneumatic drive must be correctly fi ltered and lubricated.
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Page 10: Electric Actuator
The electric actuators are equipped with torque or force limiters to protect the equipment from overloads in both directions (opening and closing); these have also been factory set. If the settings require any changes, please contact CMO Valves. •... -
Page 11: Maintenance
SERIES MAINTENANCE CMO Valves shall not be liable if the knife gate valve su ers damage due to incorrect or unauthorised handling or improper assembly and commissioning, thus voiding the warranty. Manipulating or modifying the knife gate valve is forbidden unless expressly authorised in writing by CMO Valves... -
Page 12: Important Safety Aspects
KNIFE GATE VALVE KNIFE GATE VALVE - A - A SERIES SERIES IMPORTANT SAFETY ASPECTS To work under ideal safety conditions, the drives must be in idle position and disconnected from their power source (electric, pneumatic or hydraulic) with the air tanks depressurised. Drives with fail-safe position (spring return) must be in these safety positions or locked. - Page 13 KNIFE GATE VALVE KNIFE GATE VALVE - A - A SERIES SERIES REPLACING THE SEALING JOINT (except metal/metal and PTFE) Make sure there is absolutely no pressure and fl uid in the system. 2. Remove the valve from the pipeline.
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Page 14: Replacing The Packing
Below are the packing dimensions (Table 3). As standard, CMO Valves’ packing gland is made up of 3 lines (2 packing gland lines and 1 rubber joint line in the middle). - Page 15 KNIFE GATE VALVE KNIFE GATE VALVE - A - A SERIES SERIES DIAMETER PACKING RUBBER RING DN50 2 lines of 8 x 8 x 204 1 line of 8 x 8 x 204 DN65 2 lines of 8 x 8 x 234...
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Page 16: Maintenance Of The Pneumatic Actuator
The pneumatic cylinders in our valves are manufactured and assembled at our premises. The maintenance of these cylinders is simple, if your need to replace any elements and you have any questions please consult CMO Valves. Below is an exploded diagram of the pneumatic actuator (fi... -
Page 17: Components List
KNIFE GATE VALVE KNIFE GATE VALVE - A - A SERIES SERIES MAINTENANCE OF OTHER DRIVES For maintenance of other types of drives mounted on the reduced bore valve, such as manual geared motors, electric actuators and hydraulic actuators, follow the manufacturer’s recommendations as indicated in their user manual and technical documentation. - Page 18 Use only original spare parts. For any request or inquiry, contact CMO Valves, stating the material or component required and the order or project number. The following chapter and the website www.cmovalves.com include catalogues and technical information that can help identify the parts and elements of the reduced bore valve.
- Page 19 NORTH AMERICA EUROPE ASIA MIDDLE EAST AFRICA AUSTRALIA & OCEANIA SOUTH AMERICA CMO VALVES CMO VALVES CMO VALVES HEADQUARTERS MAIN MADRID FRANCE OFFICES & FACTORY Amategi Aldea, 142 C/ Rumania, 5 - D5 (P.E. Inbisa) 5 chemin de la Brocardière 20400 Tolosa 28802 Alcalá...
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