SERIES G11 - STYLE 506

DURAN® HIGH PRESSURE REDLINE TUBULAR GAUGE GLASS

WE CUT TO ANY LENGTH!

Why Redline?
Redline striped glass makes clear liquids such as water very easy to see compared to using clear glass tubes, especially when viewing from a distance. By positioning the redline stripe side of the glass opposite the operator’s viewing position, the redline stripe is magnified by the liquid in front of it. Thus the redline will appear very wide where liquid is present and very narrow where liquid is not present.
Features

  • Red and White Lined tubular glass for high pressure and steam applications
  • High Quality Borosilicate Duran® Glass manufactured by Schott North America, Inc.

Sizes

Outside
Diameter (OD)
Outside
Diameter Tolerances
Inside Diameter (ID)Wall
Thickness
Wall
Thickness Tolerance
Lengths
±1/16”
Availability
1/2”+0, -1/32”11/32”5/64”±1/64”1-1/2” to 72”Ships same or next day
5/8”+0, -1/32”7/16”3/32”±1/64”1-1/2” to 72”Ships same or next day
3/4”+0, -1/32”17/32”7/64”±1/64”1-1/2” to 72”Ships same or next day

G11 Style 506 1/2” OD Pressure Ratings

Maximum Pressure Ratings (PSIG)
With No Corrosion
1/2" OD
Duran® CodesNon-SteamSaturated Steam
Boiler Service
Length*NewOld150°F425°FUp to 422°F
8"1084399624010390300300
10"1098222624030370295295
12"1084432624050360295295
14"1084400624070345290290
16"1098247624090335285285
18"1084401624110325280280
20"1084402624130310280280
24"1084434624170280270270
30"1084403624180250Not RatedNot Recommended
36"1084435624190215Not RatedNot Recommended
48"1084436624210175Not RatedNot Recommended
60"1084437624211135Not RatedNot Recommended
72"1084438624212100Not RatedNot Recommended

*For in-between lengths apply the ratings of the next longer length.

G11 Style 506 5/8” OD Pressure Ratings

Maximum Pressure Ratings (PSIG)
With No Corrosion
5/8” OD
Duran® CodesNon-SteamSaturated Steam
Boiler Service
Length*New
Old150°F425°FUp to 417°F
8"1084441624310370285285
10"1084443624330345280280
12"1084448624350335280280
14"1084449624370325275275
16"1084450624390315270270
18"1084453624410305265265
20"1084455624430290265265
24"1084457624470265255255
30"1084458624480235Not RatedNot Recommended
36"1084459624490205Not RatedNot Recommended
48"1084462624510165Not RatedNot Recommended
60"1084439624220125Not RatedNot Recommended
72"108444062422190Not RatedNot Recommended

*For in-between lengths apply the ratings of the next longer length.

G11 Style 506 3/4” OD Pressure Ratings

Maximum Pressure Ratings (PSIG)
With No Corrosion
3/4” OD
Duran® CodesNon-SteamSaturated Steam
Boiler Service
Length*New
Old150°F425°FUp to 415°F
8"1084468624610360280280
10"1084469624630340275275
12"1084471624650330275275
14"1084473624670320270270
16"1084475624690310265265
18"1084476624710300260260
20"1084479624730285260260
22"1084480624750270250250
24"1084481624770260250250
30"1084482624780230Not RatedNot Recommended
36"1084483624790200Not RatedNot Recommended
48"1084484624810160Not RatedNot Recommended
60"1084466624600125Not RatedNot Recommended
72"108446762460190Not RatedNot Recommended

*For in-between lengths apply the ratings of the next longer length.

Options

  • For lengths over 72” Redline Tape can be applied – see Style-505
  • Tighter length tolerances less than ±1/16”, please inquire

Application Notes

  • Steam Service: Limited to 24” Lengths
  • Vacuum Service: Acceptable with properly designed valves and seals
  • Compatibility: Before ordering, verify that all the materials of construction, pressures, temperatures, and any other specifications are compatible with the design, media(s), cleaning solutions, and the environment of the application and future applications. The John C. Ernst Co. does not make compatibility recommendations. Compatibility determinations, corrosion or otherwise, are the responsibility of the user.
    Some medias reduce the useful life of gauge glass by chemical action, such as Hydrofluoric Acid (HF), hot concentrated Phosphoric Acid (H3PO4), Sodium Hydroxide (NaOH) and Potassium Hydroxide (KOH) above 125°F, steam or superheated water above 250°F. Alkaline solutions attach glass very slowly at room temperatures, but as temperature is increased over 100°F, the corrosion rate rises rapidly. Steam can etch or corrode glass thus weaken the glass tube.

Warning WARNING: This product can expose you to certain chemicals, which are known to the State of California to cause cancer or birth defects or other reproductive harm. For more information go to: www.P65Warnings.ca.gov
Alternate Glass Tubing

Alternate Plastic Tubing

Model Number Matrix
Model Number Matrix