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The Reference section of AirTalk.com provides key information about our hardware and software products, cable pressurization design concepts, leak locating strategies and a variety of other information. Visit this section often to learn more about cable pressurization and what we have to offer.
 
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Pneumatic Resistance Charts

Paper or Pulp Cables
NUMBER
OF
PAIRS		 TOTAL PNEUMATIC RESISTANCE VALUES PER 1000 FEET
19-GAUGE 22-GAUGE 24-GAUGE 26-GAUGE
3600 — — — 0.6
3000 — — — 0.7
2700 — — — 0.8
2400 — — — 1.0
2100 — — — 1.3
1800 — — 0.9 1.6
1500 — — 1.2 1.8
1200 — 0.7 1.5 2.2
1100 — 0.8 — —
900 — 1.0 1.9 3.0
600 — 1.5 2.5 4.5
450 0.7 1.8 — —
400 0.8 2.0 4.0 6.0
300 1.0 3.0 5.0 7.5
200 1.5 4.0 8.0 11.5
150 2.0 5.0 10.0 15.0
100 3.0 7.5 13.0 20.0
75 4.0 10.0 16.0 25.0
50 6.0 15.0 20.0 40.0
25 10.0 25.0 40.0 50.0
16 15.0 40.0 50.0 80.0
11 20.0 50.0 60.0 90.0
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Pneumatic Resistance Charts

Plastic Insulated Cables
NUMBER
OF
PAIRS		 TOTAL PNEUMATIC RESISTANCE VALUES PER 1000 FEET
19-GAUGE 22-GAUGE 24-GAUGE 26-GAUGE
3600 — — — 0.1
3000 — — — 0.1
2700 — — — 0.2
2400 — — — 0.3
2100 — — — 0.4
1800 — — 0.2 0.4
1500 — — 0.3 0.5
1200 — — 0.4 0.6
900 — — 0.4 0.6
600 — 0.2 0.5 0.8
400 — 0.3 0.6 1.4
300 0.1 0.4 0.8 1.8
200 0.2 0.6 1.2 2.7
150 0.3 0.8 1.7 3.7
100 0.4 1.2 2.5 5.5
75 0.5 1.6 3.4 7.4
50 0.7 2.4 5.1 11.0
25 1.4 5.1 11.0 22.0
16 2.2 8.2 17.0 33.0
11 3.2 12.0 26.0 51.0
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Pneumatic Resistance Charts

Plastic Insulated Steampeth Cables
NUMBER
OF
PAIRS		 TOTAL PNEUMATIC RESISTANCE VALUES PER 1000 FEET 
22-GAUGE 24-GAUGE 26-GAUGE
 
2700 — — 0.2
2400 — — 0.3
2100 — — 0.4
 
1800 — 0.2 0.4
1500 — 0.3 0.5
1200 — 0.4 0.6
 
900 0.2 — —
600 — — 0.8
 
 
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Pneumatic Resistance Charts

Plastic Insulated Carrier Cables 
NUMBER
OF
PAIRS		 TOTAL PNEUMATIC RESISTANCE VALUES PER 1000 FEET
22-GAUGE 24-GAUGE 26-GAUGE
 
1800 — — 0.2
1400 — — 0.3
1200 — — 0.3
1000 — — 0.4
922 — 0.2 —
 
616 — 0.2 —
600 — — 0.5
418 — 0.3 —
400 — — 0.8
314 — 0.4 —
 
210 — 0.5 —
158 — 0.6 —
154 0.5 — —
106 — 0.9 —
104 0.1 — —
 
54 — 1.5 —
52 0.4 — —
27 0.4 — —
 
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