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Cascade Systems
A cascade system can speed up refills considerably.
Eg. Our CS9 compressor will fill 4 SCUBA tanks in about 50 minutes.
A cascade system can fill them in about 5 minutes!
We can mount your cylinders on your truck or trailer, against a wall,
or on a stand (see below).
The price of the storage bottle includes nut & nipple, stainless steal tubing, and valve.
We carry 4,500 PSI, 5,000 PSI, and 6,000 PSI cylinders.
We can also supply you with a regulator; a fill hose, and an adapter to attach to your SCBA, SCUBA, or paintball tank.
Technical Information
4500 PSI/444 CF, 149 lbs. empty, they measure 9 5/16" dia. by 56" to the top of the CGA 347 valve. Hydrostatic test pressure is 6750 psi. DOT Classification is DOT-E 9421-4500. Canadian designation: SU 4221.
5000 PSI/480 CF, 158 lbs. empty, they measure 9.38" OD by 52.5" to top of inlet port. Hydrostatic test pressure is 7500 psi. DOT classification is DOT-E10869-5000. Canadian designation: SU4369-344.
6000 PSI/509 CF, 193 lbs. empty, they measure 9 9/32" dia. by 56" to the top of the CGA 702 valve. Hydrostatic test pressure is 9000 psi. DOT Classification is DOT-E 9909-6000. Canadian designation: SU 4221.
We also carry 5000/6000 psi ASME cylinders.
Fill Chart
How many SCUBA and SCBA tanks will my cascade system fill?
Estimated Number of Fills Using Various Cascade Systems
| Pressure |
Number of
Cylinders |
Total CF |
30 minute 2216 psi
45 c.f. |
30 minute 4500 psi
45 c.f. |
45 minute
4500 psi
65c.f. |
60 minute 4500 psi
88 c.f. |
SCUBA 3000 psi
80 c.f. |
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| 4500 PSI |
2 |
888 |
17 fills |
- |
- |
- |
6 fills |
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3 |
1332 |
28 fills |
- |
- |
- |
12 fills |
| |
4 |
1776 |
39 fills |
- |
- |
- |
17 fills |
| |
5 |
2220 |
50 fills |
- |
- |
- |
22 fills |
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6 |
2664 |
61 fills |
- |
- |
- |
27 fills |
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| 5000 PSI |
2 |
960 |
18 fills |
5 fills |
4 fills |
2 fills |
8 fills |
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3 |
1440 |
29 fills |
11 fills |
8 fills |
5 fills |
15 fills |
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4 |
1920 |
40 fills |
18 fills |
16 fills |
9 fills |
20 fills |
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5 |
2400 |
51 fills |
25 fills |
20 fills |
14 fills |
25 fills |
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6 |
2880 |
62 fills |
32 fills |
26 fills |
20 fills |
30 fills |
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| 6000 PSI |
2 |
1018 |
22 fills |
11 fills |
9 fills |
5 fills |
10 fills |
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3 |
1527 |
35 fills |
21 fills |
17 fills |
10 fills |
17 fills |
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4 |
2036 |
48 fills |
32 fills |
26 fills |
16 fills |
24 fills |
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5 |
2545 |
61 fills |
43 fills |
33 fills |
23 fills |
31 fills |
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6 |
3054 |
74 fills |
54 fills |
46 fills |
30 fills |
38 fills |
NOTE: Number of fills is based on a residual pressure of 500 PSI.
Also, these fill rates do not take into consideration that your compressor can be running
while you are filling your packs. |
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a. Male CGA 347
1. Quick Connect Female (alternative)
2. Quick Connect Male (alternative)
b. Bleeder
c. Line Shutoff Valve
d. 1/4 Female T
e. CGA Nut & Nipple ("347" for 4500 of 5000psi)
1. CGA Nut & Nipple ("702" for 6000psi)
f. 1/4 to Tube Adapter
g. Pigtail - 1/4" Stainless Steel Tube
h. Run T
i. 10,000 PSI Gauge
j. 6,000 PSI Gauge
k. Relief Valve
l. 1/4 to JIC Adapter
m. Regulator
n. Tube T
o. F x F Elbow
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