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IM-P130-29

CMGT Issue 7

1. Safety information

2. General product

information

3. Installation

4. Commissioning

5. Operation

6. Maintenance and

Spare parts

Printed in France

IM-P130-29

CMGT Issue 7

1306050/7

SGC40 and SGS40

Sight Glasses

Installation and Maintenance Instructions

Содержание SGC40

Страница 1: ...on 2 General product information 3 Installation 4 Commissioning 5 Operation 6 Maintenance and Spare parts Copyright 2017 Printed in France IM P130 29 CMGT Issue 7 1306050 7 SGC40 and SGS40 Sight Glass...

Страница 2: ...IM P130 29 CMGT Issue 7 2...

Страница 3: ...ain conditions corrosive elements in the flow media can affect the inside face of the window particularly where caustic alkali and hydrofluoric acid are present Mica glass protectors must be used to p...

Страница 4: ...mentioned Pressure Equipment Directive The products use on other fluids may be possible but if this is contemplated Spirax Sarco should be contacted to confirm the suitability of the product for the...

Страница 5: ...g ineffective of controls or alarms Ensure isolation valves are turned on and off in a gradual way to avoid system shocks 1 7 Pressure Before attempting any maintenance consider what is or may have be...

Страница 6: ...use the external surface of the product may be very hot If used at the maximum permitted operating conditions the surface temperature of some products may reach temperatures of 280 C 536 F Many produ...

Страница 7: ...n be spring loaded for applications on vertical lines or where there is high flowrates Mica glass protectors for severe applications When these have been specified the nomenclature becomes SGC40M and...

Страница 8: ...imits SGC40 Carbon steel Pressure bar g Temperature C Steam saturation curve Pressure psi g Temperature F Pressure bar g Temperature C Pressure psi g Temperature F SGS40 Stainless steel A E D F B C D...

Страница 9: ...e temperature 10 C 14 F PMO Maximum operating pressure for saturated steam service PN40 SGC40 31 3 bar g 238 C 454 psi g 460 F SGS40 28 bar g 230 C 406 psi g 446 F ASME 150 SGC40 14 bar g 198 C 203 ps...

Страница 10: ...Screwed Socket weld Sanitary clamp DN15 130 95 120 48 5 46 7 10 3 5 2 2 DN20 150 95 140 51 46 7 10 4 3 2 2 2 DN25 160 95 155 68 5 60 8 15 6 4 3 5 4 DN32 150 91 5 71 4 15 7 DN32 flanged 180 72 60 8 15...

Страница 11: ...s As standard the name plates are stamped SGC40 and SGS40 When the unit has been supplied or modified with Mica glass protectors its nomenclature becomes SGC40M and SGS40M Consequently the name plate...

Страница 12: ...thinning or erosion damage then the window should be replaced immediately Always wear eye protection when viewing the contents of the sight glass Reasonable steps should be taken to protect personnel...

Страница 13: ...to detect blocked valves strainers steam traps and other pipeline equipment Sight glasses can also be used for inspection purposes i e to compare the colour of the fluid at different stages of the pr...

Страница 14: ...e the sight glass and allow the pressure and temperature to reduce to ambient conditions After isolation unscrew the cover bolts 5 and remove the old gaskets 4 and windows 3 Carefully clean the recess...

Страница 15: ...Set of windows and gaskets 3 4 Set of gaskets 4 Visual flow indicator flap not shown 6 Mica glass protectors not shown 8 How to order spares Always order spares by using the description given in the c...

Страница 16: ...IM P130 29 CMGT Issue 7 16...