Spirax Sarco HL 17 Installation And Maintenance Instructions Manual Download Page 1

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IM-P278-01-EN-ISS1

CTLS

1. Safety information

2. Installation

3. Start-up

4. Maintenance

5. Spare parts

Printed in GB

1053050/2

HL17

High Limit Cut-out

Installation and Maintenance Instructions

IM-P278-01-EN-ISS1

CTLS

PREVIOUS REFERENCE NO. IM-P073-10

Summary of Contents for HL 17

Page 1: ...ety information 2 Installation 3 Start up 4 Maintenance 5 Spare parts Copyright 2018 Printed in GB 1053050 2 HL17 High Limit Cut out Installation and Maintenance Instructions IM P278 01 EN ISS1 CTLS P...

Page 2: ...product for the application being considered ii Check material suitability pressure and temperature and their maximum and minimum values If the maximum operating limits of the product are lower than t...

Page 3: ...y protective clothing to protect against the hazards of for example chemicals high low temperature radiation noise falling objects and dangers to eyes and face 1 11 Permits to work All work must be ca...

Page 4: ...anticipated with its disposal providing due care is taken 1 16 Returning products Customers and stockists are reminded that under EC Health Safety and Environment Law when returning products to Spira...

Page 5: ...l get hot All wiring connectors etc in close proximity to the valve should therefore be of heat resisting type Earth The solenoid valve should be adequately earthed 2 3 Pipeline sizing The piping on b...

Page 6: ...e screen in the main line strainer is not removed during this operation If a blowdown cock is fitted to the strainer cap it can be opened to blow out the dirt without removing the cap Important Direct...

Page 7: ...valve seat and valve head Main valve screen Main diaphragms Important It is required to periodically check the external pipework and fittings and remove any debris which might affect the performance o...

Page 8: ...n valve return spring is still in position 6 Fit the new gasket 7 Replace the screen Assemble the top housing and tighten the nuts to the torques shown in Table 1 Refit the pipework and retighten the...

Page 9: ...oosely fit the lower diaphragm chamber on two bolts either side of the union connection to locate spigot in recess 13 Bring the two new diaphragms together where precoated sealant is applied this shou...

Page 10: ...he faces of the main valve head and seat If they are only slightly worn both the main valve head and main seat may be lapped on a flat plate using a fine grinding paste If either is badly worn or unfi...

Page 11: ...150 N m 103 111 lbf ft 1 DN25 19 mm 0 75 inside 170 180 N m 125 133 lbf ft DN32 24 mm 0 94 inside 200 210 N m 148 155 lbf ft DN40 30 mm 1 18 inside 230 240 N m 170 177 lbf ft DN50 41 mm 1 61 inside 27...

Page 12: ...diaphragm plate until it comes up against the stop of the body 29 Check the valve lift shown in Table 3 using a depth gauge Table 3 Valve lift Size of valve DN15LC DN15 DN20 DN25 DN32 DN40 DN50 DN80...

Page 13: ...ber on two bolts either side of the union connection to locate the spigot in the recess 32 Refit the diaphragms in exactly the same way as when dismantled 33 Push the lower diaphragm chamber home to l...

Page 14: ...urn spring 38 Fit a new gasket 39 Replace the screen 40 Assemble the top housing complete with the spring housing assembly and tighten the nuts to the recommended torques shown in Table 1 page 8 41 Re...

Page 15: ...accessible for cleaning replacement Replace worn or damaged parts with a complete Spare parts kit item W Section 5 for best results 44 Reassemble in reverse order paying careful attention to the explo...

Page 16: ...s and nuts set of 4 T Set of diaphragm securing bolts and nuts DN15 DN32 set of 10 V Valve sizes DN40 and DN50 set of 12 DN80 set of 20 Solenoid valve complete W Replacement coil X1 Valve seat and cor...

Page 17: ...IM P278 01 EN ISS1 CTLS 17 T M L K N Main valve assembly V A V T S R Solenoid valve assembly W P X2 X1...

Page 18: ...marked are interchangeable with the DP17 pressure reducing valve Size DN Screwed Flanged 1 15 20 25 32 40 50 80 Maintenance kit a a b f a b c d e g Main diaphragm a a b a a b b c c d Main valve assem...

Page 19: ...IM P278 01 EN ISS1 CTLS 19 T M L K N Main valve assembly V A V T S R Solenoid valve assembly W P X2 X1...

Page 20: ...IM P278 01 EN ISS1 CTLS 20...