Related Manuals for CMO VALVES TD Series
Summary of Contents for CMO VALVES TD Series
- Page 1 U N I D I R E C T I O N A L K N I F E G A T E V A L V E - T D 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' TD series unidirectional knife gate valves. TD series valves are designed to manage a wide range of fluids with high con- centrations or heavy contamination (including waste products) by controlling their flow, isolation and passage in pipelines for the defined range of pressures and temperatures, which is their designated use. -
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
Make sure the valve body’s inside cavities are clean. Inspect the pipes and the fl anges to make sure they contain no foreign material and are clean. The TD Series valve is unidirectional, with a fl ow direction arrow marked (fi g.1) on the valve body to indicate fl uid direction (fi g.2). - Page 5 (fi g. 1). Thanks to the design of the TD series knife gate valve (with support slides for the gate), 30% of the working pressure can be applied in the opposite direction to the arrow without causing any damage. The valve is not watertight in these circumstances.
- Page 6 Fig. 5 TD Series knife gate valves must be installed fi rmly in the duct they are mounted on. 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. The seal to be installed will be selected in line with the working conditions inside the duct (temperature, pressure, fluid,...
- Page 7 • The TD Series unidirectional knife gate valve does not have guides for the knife 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.
- Page 8 For other types of accessories and options installed or incorporated into the TD Series knife gate valve (mechanical locking device, air injections, limit switches, electrovalves, junction boxes, etc.), check with CMO Valves.
- 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.
- Page 10 KNIFE GATE VALVE - TD KNIFE GATE VALVE - TD SERIES SERIES MANUAL GEARBOX WITH CHAINWHEEL To operate the knife gate valve, pull one of the chain drops, taking into account that closing is carried out when the handwheel turns clockwise.
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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 KNIFE GATE VALVE - TD KNIFE GATE VALVE - TD 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 Viscosity at 100ºC ASTM D-445 and ensure the valve operates correctly (do not use oil or grease); details of the petroleum jelly used by CMO Valves Penetration 25ºC mm./ 10 ASTM D-937 are shown below in Table 2.
- Page 14 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 Contact CMO Valves. Below is an exploded diagram of the pneumatic actuator (fi g. 12) and a list of the cylinder’s components (table 4). The top cover and the support cover are usually made of aluminium, but from pneumatic cylinders greater than Ø200 mm, they are made of cast ductile iron.
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Page 16: Components List
KNIFE GATE VALVE - TD KNIFE GATE VALVE - TD 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 17 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 18 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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