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Introduction 

 

Clark-Reliance is a global leader in the level indication and control, sight-flow indication, and 

filtration  and  separation  industries.    Clark-Reliance  is  dedicated  to  offering  the  largest  and 

broadest range of instrumentation products and being the single-source for every type of level 

measurement and control to meet the varying demands of the process industry. 

 

Jerguson  Gage  and  Valve,  a  leading  supplier  of  level  gaging  products,  offers  the  world’s 

largest selection of liquid level glass gages, magnetic level gages, liquid level switches and 

level  transmitters.    Since  1905,  Jerguson  gages  and  valves  have  been  installed  in  a  wide 

variety of liquid level applications, from basic chemical storage tanks to the most advanced 

nuclear aircraft carriers.  With complete product offerings in both traditional glass gages and 

magnetic gages, Jerguson is able to satisfy customers’ diverse needs. 

 

Flat Glass Gages (Armored Gages) 

 

Jerguson Flat Glass Gages are simple, rugged instruments engineered to provide accurate 

liquid level readings for the life of the vessel they are installed on.  They are available in a 

complete  range  of  models  for  applications  ranging  from  pure  water  to  highly  corrosive 

chemicals and from cryogenic fluids to superheated steam. 

 

Jerguson  offers  products  certified  to  FM,  UL,  CSA  and  ATEX  standards  and/or  designed 

and constructed in accordance with ASME B31.1, ASME B31.3 and the European Pressure 

Equipment Directive (PED).  

 

Like  any  instruments,  Jerguson  Flat  Glass  Gages  must  be  installed,  operated  and 

maintained with reasonable care and due regard for the applications and environment if they 

are to provide accurate readings for their service lifetimes. 

 

Содержание 300L Series

Страница 1: ...in J500 05 Date 04 14 Supersedes 06 05 Flat Glass Gages Series 300L 20 32 40 L10 Installation Operation Maintenance Instruction Manual 16633 Foltz Parkway Strongsville OH 44149 USA 1 440 572 1500 www...

Страница 2: ...4 Inspection and Delivery 5 Installation 6 Bringing Gage Into Service 7 Hot Torque of Glass Gage 8 Operation 9 Cleaning Glass in Steam Service 10 Maintenance 11 Repairing a Flat Glass Gage 13 Special...

Страница 3: ...throughout this manual WARNING Potential hazard or cause for injury exists CAUTION Potential damage to or failure of equipment exists This manual is designed to aid and guide in the installation oper...

Страница 4: ...nuclear aircraft carriers With complete product offerings in both traditional glass gages and magnetic gages Jerguson is able to satisfy customers diverse needs Flat Glass Gages Armored Gages Jerguso...

Страница 5: ...ss Level Gage includes an instrument tag This tag contains important information used in ordering replacement parts or a replacement gage Confirm that the gage model number and pressure temperature ra...

Страница 6: ...ing and prevent damage to the gage from excessive vibration Always provide shutoff valves between the gage and vessel Jerguson automatic safety ball check valves are recommended to help provide protec...

Страница 7: ...Wait for the gage level to stop rising before proceeding 4 Fully open the top and bottom valves Visit http www clarkreliance com site jerguson_gageballcheckvalves asp for a video demonstration of the...

Страница 8: ...ice long enough for the equipment to reach operating temperature or at least 200 F 93 C 2 Upon reaching the desired temperature isolate the glass gage from service 3 Fully open the drain valve to evac...

Страница 9: ...in the gage For high pressure high temperature or hazardous fluid applications the Jerguson SafeView Shield protects operators in the event of glass or gasket failure Refer to bulletin J100 34 for mo...

Страница 10: ...oiler water may be low After performing the blow down procedure if the water level does not return to the normal level promptly the connecting piping may be partially clogged and require cleaning Clar...

Страница 11: ...va Soap Super Soilax household detergents etc Where regular cleaners do not work use dilute acids such as hydrochloric muriatic acid Carefully observe safety rules when handling these chemicals Cleani...

Страница 12: ...d pressure For applications over 600 F 315 C aluminosilicate glass must be used The glass gaskets and cushions should always be replaced during maintenance even if they appear to be in perfect conditi...

Страница 13: ...of abnormal wear Use a brass scraper shown below or other soft tool to remove any seal or cushion gasket remnants Take care not to gouge or dent the gasket surfaces Promptly dispose of all used compon...

Страница 14: ...n gasket surface 7 Inspect the bolt and nut threads If the nut doesn t spin freely down the length of the bolt threads then the nut and or bolt should be discarded If the nuts and bolts show signs of...

Страница 15: ...ate the new glass in place on top of the gasket and mica in the chamber Remove the cardboard once the glass is located properly this is best done with the gage lying flat on a bench 10 Apply Molykote...

Страница 16: ...ue in Figure D below Failure to achieve final torque using any sequence other than as described in Figure C below may result in glass breakage at time of assembly or at pressurization 12 Note Gages sh...

Страница 17: ...the required torque value in the proper sequence new glass and cushion gaskets are required see Repairing a Flat Glass Gage for more details 3 Let the gage sit for 10 12 hours 4 Re torque to the orig...

Страница 18: ...by stretching the springs and attaching the hooks 4 per extension around the bolts on the underside of the cover In effect the extensions raise the glass viewing surfaces far enough away from the gage...

Страница 19: ...n Gaskets Glass Size 1 thru 9 Applicable with below codes 0 4 only Glass Size 11 12 13 15 18 20 Applicable with below codes 5 6 only 0 Reflex Borosilicate Glass 1 Transparent Borosilicate Glass 2 High...

Страница 20: ...letin J500 07 IOM for Series 70BL XL 70 Bulletin J500 08 Data Sheets for Valves o140 Series Bulletin J100 50 o60 Series Bulletin J100 51 o70BL XL Series Bulletin J100 52 o70 Series Bulletin J100 53 o9...

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