CSA XLC 400 Series Manual Download Page 1

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XLC 470

For further information please consult us at: www.comeval.es

CSA waterworks line

Altitude automatic control valve

Mod. XLC 470

Summary of Contents for XLC 400 Series

Page 1: ...XLC 470 1 For further information please consult us at www comeval es CSA waterworks line Altitude automatic control valve Mod XLC 470...

Page 2: ...l only Safety All safety messages in the instruction manual are flagged with the following symbol meaning danger caution and warning This means and makes reference to procedures that may lead to equip...

Page 3: ...onsult us at www comeval es Contents Description 4 Handling and storage 5 Installation 6 Set up 7 Maintenance of MPZ Pilot 10 Maintenance of GRIFO 12 Visual position indicator 14 Maintenance of genera...

Page 4: ...the static pressure 5 of the tank itself The response of the valve is proportional to the level variation within 40 cm accuracy Picture 1 XLC 470 N Component Material 1 2 3 4 5 6 7 8 9 Main valve XLC...

Page 5: ...rcuit fittings pipes solenoids or position indicators Valves must be lifted only by cables chains located around the body through the flanges holes or eyebolts During hoisting always consider that the...

Page 6: ...the accumulation of air pockets during working conditions and allow air discharge during pipe filling and commissioning A suitable by pass should be provided for servicing of the valve without interr...

Page 7: ...sure sustaining relief function will produce a thrust proportional to the pressure itself Anchorage blocks and way of preventing valve s movement or shifting need to be taken into account The connecti...

Page 8: ...sure will enter the valve s body circuitry and bonnet pushing down the diaphragm and mobile block against the obturator and inducing the valve to the closing position still ensuring some flow towards...

Page 9: ...ilot are affecting such value The unit flow control device GR I F O is exclusive from us and contains needle valves filter and check valves used for the proper valve s stability and regulation If pres...

Page 10: ...g on the spring used for the application Disassembly It is not necessary to remove the pilot from the circuit for the disassembly Instead use picture on the left with the corresponding components and...

Page 11: ...mage the o ring 23 10 Remove the obturator 20 from the obturator holder 18 11 Inspect the plane gasket 21 12 Inspect the seat 19 making sure no sign of damages scratches or corrosion are present if ne...

Page 12: ...ained simple and intuitive yet allowing a tremendous range of regulations compared to other solutions on the market It is completely manufactured in stainless steel AISI 303 and contains a fine mesh f...

Page 13: ...from the fully closed position and turning anticlockwise Reaction speed Opening speed Closing speed XLC 410 3 1 5 XLC 410 ND 3 2 5 XLC 410 T 3 1 5 XLC 412 3 5 3 4 XLC 415 3 1 5 XLC 420 3 2 4 XLC 424...

Page 14: ...er purge out air pockets accumulated during working conditions inside the control chamber of the main valve DIsassembly The CSA position indicator is a sturdy and solid item not subject to maintenance...

Page 15: ...or leakages is reported The possible causes lead to defects on the diaphragm defects on the movements of the mobile block friction caused by deposits and corrosion problems on the gaskets defects on t...

Page 16: ...o stones pebbles trapped inside the main body Remove the material from the valve The plane gasket of the obturator is ruined Replace the plane gasket The static pressure sensed by the pilot is below t...

Page 17: ...eam gate and decrease all the remaining pressure inside the valve before removing the bonnet Movement of the mobile block In order to verify the proper movement of the mobile block to proceed as follo...

Page 18: ...in shaft on the guiding devices because of the high friction value Should that be the case simply proceed to a proper cleaning leaving it in a muriatic acid solution 5 as long as necessary shouldn t t...

Page 19: ...se the blocking of the valve due to its bind in the bearings Remove the nut and the washer 10 take off the upper flat 11 the O rings 21 check the diaphragm looking for damage and after having pulled o...

Page 20: ...ody placing the shaft into the sealing seat guide make the holes of the diaphragm match the studs and position the spring 9 under the cover Set the nuts tight using a cross over pattern then put the c...

Page 21: ...at www comeval es We reserve the right to incorporate our latest design and material changes without notice or obligation Design features materials of construction and dimensional data as described i...