The SAI™ Auxiliary Air & Helium Supply System provides a good way to operate the SAI™ Model 5 Bubble Generator in any location where air and helium are not conveniently available. Weighing 58 lbs, the unit is quite compact and portable. This makes it ideal for the study of ventilation patterns, cleanroom airflows and similar applications.

The air is supplied by a Thomas industrial duty oil-less piston compressor that generates 2.62 cfm at 50 psi. This unit has its own regulator to provide the required flow rate and pressure to the SAI™ Model 5 Console with one or two Plug-In Heads. The compressor is powered by a 3/4 hp, direct drive motor with an on/off switch and thermal overload protection that operates on 115 Vac/60Hz supplied by an electrical cord 6 ft long.

The helium is stored in a rechargeable aluminum cylinder. A helium regulator maintains the necessary working pressure of 20 psi. This cylinder is capable of delivering 10 hrs of continuous running time with both Plug-In Heads in operation, or 20 hrs with one Plug-In Head. The inlet port of the regulator is equipped with a CGA 580 bullet shaped nipple fitting. Since this fitting is the same fitting that is commonly used on larger bottles, it can be used interchangeably. The cylinder may be taken to a compressed gas supplier to be recharged. Alternatively, a Transfill Manifold is supplied for you to recharge the cylinder on-site.

The air compressor, helium cylinder and regulator are all mounted to a aluminum base plate and set in a heavy duty case with a removable cover, about 24” L x 18” W x 16” H. Integrated wheels and a tow handle also provide for easy movement of the unit during testing or travel to and from a test site. Internal components can be removed from the case for general operation and, as necessary, to recharge the helium cylinder. This also allows for easy maintenance and/or repair.

The Transit Case and a Transfill Manifold (not shown) are included with the Auxiliary Air And Helium Supply