Pyrex Heavy Wall Gage Glass              
                 
General Application: Crude oil, water or gas flowmeter.            
                 
Ends Finish: Saw Cut                
                 
                 
WARNING                  
(1) Improper installation or maintenace of tublar glass can cause innediate or delayed glass breakage resulting in bodily injury. To avoid   
breakage observe the  Do's and Do Not's and Use and Care Instructions which are listed in the index, as well as tubular gage  
manufacturer's instructions.                
                 
(2) If a gage glass breaks, contained substances can be released and glass can be blown out of the unit with great force. Always wear  
safety glasses when looking toward a gage or working on a gage glass assembly. Guard against the possibility of fire and explosion.  
                 
(3) Protect glass from impact, scratches, other surface damage and sudden temperature changes. These can weaken or stress the glass  
and lead to breakage.                
                 
(4) A good safety practice is to incorporate a protective guard or shield in the gage glass assembly, i.e., a shield between the user  
and the gage. Refer to the gage manufacturer's catalog.                 
                 
(5)Review in detail the Corrosives information which is listed in the index.          
                 
(6) Review the disclaimer information which is listed in the index.          
                 
(7) Clerical errors may exist in this chart. Please confirm information before relying on the data.      
                 
                   Maximum Recommended
                   Working Pressure, psi
            Std.   Temperatures Steam Boiler
  Diameter Diameter   Wall Wall Length Pcs. Per Up To 150 degrees F Service
Diameter Tolerances (+) Tolerances (-) Wall Tolerances (+) Tolerances (-) (Inches) * Case No Corrosion ** Up To 425 degrees F
5/8" O.D. 1/64"  -3/64"  3/16"  + 3/64"  -0" 8 12 600 350
(.625" O.D.) (.016") (.047") (.188") (+ .047")  -0" 10 12 600 345
            12 12 600 340
            14 12 600 335
* Intermediate lengths are available upon request   16 12 600 325
            18 12 600 320
** See the Corrosives information cited in the index   20 12 600 315
            24 12 580 300
*** Maximum length for steam boiler is 24"     30 12 550 Not Recommended ***
            36 12 500 Not Recommended ***
            48 12 340 Not Recommended ***
3/4" O.D. 1/64"  -3/64" 7/32"  + 1/16"  -0" 8 12 600 350
(.750" O.D.) (.016") (.047") (.219") (+ .063")  -0" 10 12 600 345
            12 12 600 340
            14 12 600 335
* Intermediate lengths are available upon request   16 12 600 325
            18 12 600 320
** See the Corrosives information cited in the index   20 12 600 315
            24 12 580 300
*** Maximum length for steam boiler is 24"     30 12 550 Not Recommended ***
            36 12 500 Not Recommended ***
            48 12 340 Not Recommended ***
7/8" O.D. 1/64"  -3/64" 1/4"  + 1/16"  -0" 8 12 600 350
(.750" O.D.) (.016") (.047") (.250") (+ .063")  -0" 10 12 600 345
            12 12 600 340
* Intermediate lengths are available upon request   14 12 600 335
            16 12 600 325
** See the Corrosives information cited in the index   18 12 600 320
            20 12 600 315
*** Maximum length for steam boiler is 24"     24 12 580 300
            30 12 550 Not Recommended ***
  Please review the Do's and Do Not's before installation cited in the index  36 12 500 Not Recommended ***
            48 12 340 Not Recommended ***
1" O.D. 1/64"  -3/64" 5/16"  + 1/16"  -0" 8 12 600 350
(.750" O.D.) (.016") (.047") (.313") (+ .063")  -0" 10 12 600 345
            12 12 600 340
* Intermediate lengths are available upon request   14 12 600 335
            16 12 600 325
** See the Corrosives information cited in the index   18 12 600 320
            20 12 600 315
*** Maximum length for steam boiler is 24"     24 12 580 300
            30 12 550 Not Recommended ***
  Please review the Do's and Do Not's before installation cited in the index  36 12 500 Not Recommended ***
            48 12 340 Not Recommended ***
                 
Sources: Corning Incorporated brochure "Tubular Gage Glasses"          
Copyright 1991.