Hydra-Flex Spiral Metering Plug User Manual
Hydra-Flex Hardware
Spiral Metering Plug – Installation and Chemical Usage
Installation (See image below for example of assemblies)
1. Press Metering plug(s) into injector end of flexible chemical line such that it is about
0.5 inches from the end.
2. Push the end of the tubing that contains the metering plug onto the ChemFlex Injector
hose barb.
NOTE: Flexible Vinyl tubing must be used to ensure a seal between the tube wall and the
flats on the OD of the Meter Plug
NOTE: Multiple Metering Plugs can be used back to back to reach lower draw rates – as
shown in the image below.
**Remove all standard metering tips when using a Metering Plug in an application.
Example of Metering Pug Assemblies
Draw Volume in ml in given time
L (in)
ml in 30
seconds
ml in 25
seconds
ml in 15
seconds
3.00
1.9
1.6
0.9
2.00
2.6
2.2
1.3
1.00
4.6
3.8
2.3
0.75
5.7
4.8
2.9
0.50
8.0
6.6
4.0
0.25
13.9
11.6
7.0
Injector - Dilution Ratio
0.029"
0.040"
0.051"
0.057"
0.070"
0.083"
0.086"
0.098"
0.125"
Plug
Length
(inches)
0.25
Gpm
0.50
Gpm
0.75
Gpm
1.00
Gpm
1.50
Gpm
2.00
Gpm
2.25
Gpm
3.25
Gpm
5.50
Gpm
3.00
1 : 251
1 : 503
1 : 754
1 : 1006
1 : 1509
1 : 2012
1 : 2263
1 : 3269
1 : 5532
2.00
1 : 181
1 : 363
1 : 544
1 : 726
1 : 1089
1 : 1451
1 : 1633
1 : 2359
1 : 3991
1.00
1 : 104
1 : 208
1 : 311
1 : 415
1 : 623
1 : 831
1 : 934
1 : 1350
1 : 2284
0.75
1 : 82
1 : 165
1 : 247
1 : 329
1 : 494
1 : 659
1 : 741
1 : 1071
1 : 1812
0.50
1 : 59
1 : 119
1 : 178
1 : 238
1 : 357
1 : 475
1 : 535
1 : 772
1 : 1307
0.25
1 : 34
1 : 68
1 : 102
1 : 136
1 : 204
1 : 272
1 : 306
1 : 442
1 : 748
**All draw data given above is based on drawing water – Actual results will vary due to
differences in chemical viscosity