Ernst Instruments
Ernst Instruments
21 Gail Court
Sparta, NJ 07871-3438
USA

Toll Free: 888.943.5000
Phone: 973.940.1600
Fax: 973.940.1620
Email: sales@ernstinstruments.com
Website: www.ernstinstruments.com
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Type I - Visual

Standard Features:
  • Orange rotator used for clear media to enhance flow indication in any direction
Connection Sizes:
  • 1/4" to 1" Female NPT
  • 9/16"-18 Straight Thread (SS only)
S17A Series Single Window Sight Flow Indicators
Unit of Measure
Items S17A Series Single Window Sight Flow Indicators
S17A-G05-1
Sight Flow Indicator 		S17A Series Single Window Sight Flow Indicators
S17A-B05-1
Sight Flow Indicator 		S17A Series Single Window Sight Flow Indicators
S17A-D05-1
Sight Flow Indicator 		S17A Series Single Window Sight Flow Indicators
S17A-G02-1
Sight Flow Indicator 		S17A Series Single Window Sight Flow Indicators
S17A-B02-1
Sight Flow Indicator
NMFC Item Number N/A
Number of Handling Units N/A 1
Number of Packages N/A 1
Series N/A S17A
Indicating Device N/A Rotor
Size N/A 1/2 in N/A 1/2 in N/A 1/2 in N/A 1/4 in N/A 1/4 in
End Connections N/A Female NPT
Low Flow Range1 N/A 1.5 to 12 GPM N/A 1.5 to 12 GPM N/A 1.5 to 12 GPM N/A 0.1 to 1.0 GPM N/A 0.1 to 1.0 GPM
Low Flow Range Accuracy2 N/A ±7 %
Standard Flow Range N/A 4.0 to 20.0 GPM N/A 4.0 to 20.0 GPM N/A 4.0 to 20.0 GPM N/A 0.5 to 5.0 GPM N/A 0.5 to 5.0 GPM
Standard Flow Range Accuracy3 N/A ±15 % N/A ±15 % N/A ±15 % N/A ±7 % N/A ±7 %
Pressure Rating @ 70 ºF N/A 100 PSIG N/A 200 PSIG N/A 200 PSIG N/A 100 PSIG N/A 200 PSIG
Pressure Rating @ 180 ºF N/A 40 PSIG N/A 80 PSIG N/A 80 PSIG N/A 40 PSIG N/A 80 PSIG
Body Material N/A Polypropylene N/A Brass N/A 316 Stainless Steel N/A Polypropylene N/A Brass
Gasket Material N/A Buna-N N/A Fluorocarbon (FKM) N/A Fluorocarbon (FKM) N/A Buna-N N/A Fluorocarbon (FKM)
Rotor Material N/A PPS
Pin Material N/A Ceramic
Type N/A Rotor
Window N/A Single
Lens N/A Polysulfone
Visible Diameter/Length N/A 1.50 in
Length N/A 3.06 in N/A 3.01 in N/A 3.01 in N/A 3.06 in N/A 3.01 in
Width N/A 1.37 in
Height N/A 2.37 in
Weight N/A 1.00 lbs
Packaging Material N/A Cardboard Box
Options N/A
  • None
Application Notes N/A
  • Steam Service: Not acceptable
  • Potable Water: Not acceptable
  • Vacuum Service: Not acceptable
  • Gaseous Service: Not acceptable
  • Corrosion: Before ordering, verify all materials of our sight flow indicators are compatible with the service media(s), intermittently used cleaners, the environment, and cleaning processes in conjunction with the temperatures and pressures of the application(s) and future applications. John C. Ernst Co. does not make chemical compatibility recommendations. Compatibility is the responsibility of the user.
  • 1 With Low Flow Adapter included
  • 2 Accuracy is for Type O Flow Rate only
  • 3 Accuracy is for Type O Flow Rate only