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172-65254MA-04 (A-COS-10) 22 April 2020

Pressure Reducing Valve for Air

A-COS-10

Copyright © 2020 by TLV CO., LTD.

All rights reserved

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Содержание A-COS-10

Страница 1: ...172 65254MA 04 A COS 10 22 April 2020 Pressure Reducing Valve for Air A COS 10 Copyright 2020 by TLV CO LTD All rights reserved...

Страница 2: ...e instructions to be sure of using the product properly Using air in which matter such as condensate scale or types of oil is entrained can not only result in problems with the air using equipment and...

Страница 3: ...at of death or serious injury WARNING Indicates that there is a potential threat of death or serious injury CAUTION Indicates that there is a possibility of injury or equipment product damage WARNING...

Страница 4: ...ct in any way Failure to observe these precautions may result in damage to the product and burns or other injury due to malfunction or the discharge of fluids Do not use excessive force when connectin...

Страница 5: ...ccur Freezing may damage the product leading to fluid discharge which may cause burns or other injury CAUTION Refer to the product nameplate for detailed specifications Model Nominal Diameter Maximum...

Страница 6: ...lve opens the secondary pressure of the product changes from zero to the set pressure Passing through an area of the reducing ratio of less than 10 1 where adjustment is impossible chattering occurs m...

Страница 7: ...in have 750 mm 30 in or more Automated Valve A COS 30 d or more Automated Valve A COS Less than 30 d Maintain a straight piping run of 30 d or more when another pressure reducing valve is installed Tw...

Страница 8: ...Float 6 Float Cover 7 Trap Valve Seat 8 Separator Screen 9 Main Valve Seat 10 Main Valve 11 Piston 12 Cylinder 13 Pilot Screen 14 Pilot Screen Holder 15 Pilot Body 16 Pilot Valve 17 Pilot Valve Seat...

Страница 9: ...uct Over tightening may cause breakage leading to fluid discharge which may cause burns or other injury CAUTION Installation inspection maintenance repairs disassembly adjustment and valve opening clo...

Страница 10: ...ion connection is recommended for the trap outlet pipe Connect the outlet pipe to a condensate return line or extend it to a trench In the case of the latter make sure the end of the pipe is above the...

Страница 11: ...ure Gauge A COS Ball Valve Ball Valve Bypass Valve Straight run Piping Lengths d pipe diameter Upstream 10 d or more Downstream 15 d or more Ball Valve A COS Bypass Valve Bypass Valve Pressure Gauge P...

Страница 12: ...ines at both inlet and outlet Ball valves which will not retain condensate are recommended for inlet and outlet shut off valves The bypass pipe should be at least 1 2 of the size of the inlet primary...

Страница 13: ...located upstream and downstream of the product are completely closed 3 Remove the spanner cap loosen the locknut and turn the adjustment screw counterclockwise to reduce tension on the coil spring Lo...

Страница 14: ...ction and Maintenance Frequency Screens Separator and Pilot Disassemble and clean annually If there is substantial blockage install a strainer approximately 60 mesh ahead of the product Main Valve Mai...

Страница 15: ...ct the product once a year for preventive maintenance purposes It is especially important to perform an inspection immediately after the initial run of a new line or before or after equipment that is...

Страница 16: ...phragm Pilot Valve Seat Gasket Pilot Valve Pilot Valve Spring Gasket Pilot Body Notch Pilot Screen Pilot Screen Holder Gasket Plug Hex Bolt Disassembling the Piston Section Remove the pilot body after...

Страница 17: ...clogging of the screen At start up following shutdown for a long period always blow down the piston section of the body through the plug option Disassembling the Air Trap Section Loosen the trap cover...

Страница 18: ...p Valve Seat Cylinder Pilot Screen Separator Screen Main Valve Seat Pilot Valve Main Valve Pilot Valve Seat Main Valve Holder Adjustment Screw It is permissible to clean using water however cleaning w...

Страница 19: ...stening torque and the width across flats for the tools to be used are as follows Part A COS Connection Size Width Across Flats Tightening Torque mm in mm in N m lbf ft Spring Housing Bolt All 17 21 3...

Страница 20: ...r non specified conditions out of specification insufficient pressure or flow rate and clogs by dirt and scale To ensure performance for a long period of time it is recommended that the Acceptable Ope...

Страница 21: ...y Hunting or chattering occurs Occurs at low air demand It is being operated below the lower flow rate limit Check the volume of air supply replace with a smaller diameter valve Hunting never stops Th...

Страница 22: ...the piping Secure the piping No condensate is discharged The primary pressure exceeds the trap valve seat maximum working pressure Adjust primary pressure Water is inside the float Replace with a new...

Страница 23: ...oper installation use handling etc by other than TLV CO LTD authorized service representatives 2 Malfunctions due to dirt scale rust etc 3 Malfunctions due to improper disassembly and reassembly or in...

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