Easily locate water leaks by pressurizing leaky pipes with a tracer gas (hydrogen), then search above the pipe with the Variotec 460 tracer gas water leak detector. Since tracer gas detection does not involve listening, noises do not interfere with finding the leak. Hydrogen used for leak detection is normally mixed with 95% nitrogen and 5% hydrogen so that the hydrogen is always below the combustible limit.
Sewerin Variotec 460 Hydrogen Tracer Gas Water Leak Detector brochure pdf
Water Leak Tracer Gas Detector Variotec 460 video mp4
Is Your Tracer Gas Tank 25% Full or 75% Empty When the Pressure Drops to Half?
Many water leak detection professionals assume that the tracer gas (helium or hydrogen) tank is half full (or half empty if a pessimist) when the pressure reaches halfway, but it’s not. If the beginning tank pressure is 2200 psi, then the gas is half gone when the pressure drops to 1555 psi not 1100 psi. Another example: 2200 psi to 1100 psi is half pressure, but only 25% of gas is left. If the gas flow from the tank is constant, the pressure drops faster as the tanks becomes emptier. In addition to helping you bill your customers more fairly, understanding usage rate and remaining amount of tracer gas helps you plan ahead better.
Pressure
psi
Used
%
Remaining
2200
0%
100%
2100
9%
91%
2000
17%
83%
1900
25%
75%
1800
33%
67%
1700
40%
60%
1600
47%
53%
1500
54%
46%
1400
1300
65%
35%
1200
70%
30%
1100
1000
79%
21%
900
800
87%
13%
700
90%
10%
600
93%
7%
500
95%
5%
400
97%
3%
300
98%
2%
200
99%
1%
100
0
Beginning pressure = 1700 psi (60% remaining)
Ending pressure = 1200 psi (30% remaining)
Tracer gas tank refill cost = $200
Tracer gas markup = 30%
Tracer gas fee = (% remaining begin – % remaining) x tank fill cost x (1 + markup %) (0.60 - 0.30) x $200 x 1.3 = $78 Tracer gas fee
Water Leak Detection Equipment page
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Water Leak Logger page
Tracer Gas Water Leak Detectors page
Used Water Leak Detection Equipment page