| How fast do you fill my cylinder? |
| Our target fill rate is 500 psi per minute. This means that the standard aluminum 80-cubic-foot cylinder with 500 psi residual takes approximately five minutes to fill. In addition to extending cylinder life, at this fill rate, there is not enough heat created to significantly affect the final pressure. |
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| How fast do you fill my cylinder? |
Our target fill rate is 500 psi per minute. This means that the standard aluminum 80-cubic-foot cylinder with 500 psi residual takes approximately five minutes to fill. In addition to extending cylinder life, at this fill rate, there is not enough heat created to significantly affect the final pressure.
NOTE: The U.S DOT has interpreted its regulations stating that DOT-3AL (aluminum) SCUBA cylinders cannot be charged with oxygen enriched air to a service pressure greater than 3000psi. Thus, Aluminum Cylinders with pressure ratings greater than 3000psi (eg. Catalina 100s are filled to 3300psi as well as compact SCUBA cylinders) cannot be charged with oxygen enriched air as mandated by the DOT.
Identifing US/Canadian Alum. Cylinder Pressures by Serial Number Prefix
Note: The current serial number prefix system was implemented in 1993. Cylinders manufactured prior to September 1993 did not have serial number prefixes specific to the different cylinder types. The serial number prefixes of these cylinders began with "A" through "D".
3000 psi SCUBA Cylinders
Part Name - S/N Prefix - Fill - S/P(psi) - Capacity(cu ft)
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S6 - BV - AIR - 3000 - 6.0
S13 - AZ - AIR - 3000 - 13.0
S17 - AY - AIR - 3000 - 17.0
S19 - CB - AIR - 3000 - 19.0
S30 - BS - AIR - 3000 - 30.0
S40 - BI - AIR - 3000 - 40.0
S53 - AX - AIR - 3000 - 53.0
S63 - BJ - AIR - 3000 - 63.1
S67 - AR - AIR - 3000 - 67.0
S80 - AS - AIR - 3000 - 77.4
3300 psi SCUBA Cylinders
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C60 - CE - AIR - 3300 - 60.0
C80 - T - AIR - 3300 - 77.4
C100 - AA - AIR - 3300 - 100.0 |
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| What is the procedure for leaving a cylinder to be filled? |
| When you drop off a cylinder to be filled, you must complete a work order tag to indicate the desired final contents and pressure along with your name and contact information. The work order tag is attached to the cylinder and, upon request, you receive a numbered claim check. |
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| What if I don't have my claim check when picking up a cylinder? |
| If a claim check was issued, we will not release the cylinders until the claim check is produced. If you can't find the claim check, we will accept your photo identification as long as it matches the name on the work order tag. Please make prior arrangements if someone else will be picking up the cylinder and they won't have the claim check. |
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| Why don't you put my cylinder in a water bath when you fill? |
| The counterproductive practice of wet filling in the SCUBA industry is declining, but still common even in the face of strong arguments against the practice |
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| Will you fill a cylinder in water bath upon request? |
Upon request, we'll gladly:
> Completely fill your cylinder in a dry environment
> Immerse the cylinder in a clean fresh water bath for 5 minutes to rinse and check for leaks
> Dry the valve
> Check the pressure |
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| Do you partial-pressure blend in my cylinder? |
| Yes. We have the capability of partial-pressure blending in your cylinder. We can generate our Trimix via partial pressure methodology and/or by using a process known as continuous atmospheric entrainment. This allows us to deliver the final mix directly into your cylinder without any need to partial-pressure blend. |
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