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These
Shielded Gauges provide you with safe viewing of fluid levels
in your tank and a wide option of scales.
This design is simple to install and provides additional gauge
glass protection. Glass protection is assured by a metal housing
with a Lexan face which protects the glass tube.
The standard tube is 5/8"OD Clear Glass (borosilicate) and can
be furnished as Redline Glass, Lexan, PVC, or Acrylic tubing.
Both gauges can be mounted with Model 324 Proximity Switches
for High and Low Level Alarms. (See Pages 31)
Multiple sections of gauge glass are spliced
together to meet the higher-pressure ratings up to 300 PSIG.
(See Page 42 for glass pressure ratings). Some applications
can be rated to 400°F with reduced pressures.
Connection Sizes:
· Threaded
1/2 - 3/4" NPT
· Flanged 1/2" - 2" 150#
Scales Available:
· Height Scale in Inches
· Rate Scale ML/M &
Qts/24 Hrs. 1/4" increm.
· Metric Rate Scale ML/M & Liters/24 Hrs.
cm increments
· Custom Scales
Model 819 is designed with Integral Shutoff Valves with
Automatic Ball Checks. The valves are offset for easy cleaning
of the glass tubing through 1/4" vent or drain.
Model 849 is designed for applications where Valves are
not required. This model is also available with PVC wetted Parts
with either Carbon Steel or 304 Stainless Steel Frames. A 1/4"
vent and drain port are provided for easy cleaning of the glass.
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Features
•
Sizes: 1/2" NPT to 2" Flanged
• Easy Installation of One Piece
• Full Glass Protection
• 3-Sided Metal Frame with Clear Polycarbonate
(Lexan) Shield
• Gauge Lengths up to 15 Feet With or
Without Valves
• Vent & Drain for Easy Glass Cleaning
• Made to Customer Specifications
Ratings
•
Pressures up to 300 PSIG
• Temperatures up to 400°F
Materials
•
Frame: 304 Stainless Steel or
Zinc Plated Carbon Steel
•
Wetted Metal: 316 Stainless Steel or
Zinc Plated Carbon Steel
•
Seals: Viton®*
O-Rings (Std.)
•
Tubing: 5/8"OD Borosilicate
•
Valve Stem Packing: Teflon®*
A Special Note About Corrosion
•
Excessive corrosion may result in
leakage, glass breakage, and premature
valve failure.
• Be
sure all wetted components of the
gauge are constructed with materials
compatible with the service medium.
John C. Ernst Co. does not make
chemical compatibility recommendations.
• See
the "Compass Corrosion Guide" or
equivalent for material compatibility.
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