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Smart Parts Smart Parts Max-Flow S.I.S. HPA Bottle Reviews

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Smart Parts Smart Parts Max-Flow S.I.S. HPA Bottle
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Number of Reviews: 2
Average Rating: 5.5 / 10
Manufacturer Website: Click here
Suggested Retail Price: $220

Manufacturer DescriptionSubscribe to Reviews on this Product - Edit this Product Listing
Preset Convenience – The Max-Flo SIS is preset to deliver approximately 800 psi compressed air or nitrogen to a marker, with no need to spend time at the tech table tweaking and adjusting – the Max-Flo SIS is ready to go.

Stainless Steel ASA Threads – Remember stainless steel regulator bodies in the early 1990s before so much of the paintball industry was trying to cut corners? We do, because we used them, and we saw how durable stainless can be, and the protection it offers from cross-threading damage, says Smart Parts Vice President, Adam Gardner.

Increased Diameter Fluted Valve Pin – While most screw-in air systems use brass or aluminum valve pins, these metals eventually dent, bend or chip under repeated use. The Max-Flo SIS pin is of a larger diameter and made of stainless steel. In addition to strength, the larger diameter and unique fluted design allows for an increased flow volume from the regulator.

Anti-Launch Neck – Screw-in style air system design must ensure that a regulator cannot be accidentally removed from a pressurized cylinder while the system is being unscrewed from a marker. Competing brands solve this by the use of high torque levels and thread-locking adhesives. These strategies can create dangerous situations. The Consumer Products Safety Commission has reported on the accidental removal of a CO2 tank in which thread-locking compound blocked the valve's safety vent. Hydrotesters have reported situations of competing brand screw-in regulator necks becoming weakened or broken during removal for hydrotesting. The Smart Parts anti-launch neck design provides extended secondary neck threads deep inside the compressed air cylinder. Quadruple-redundant safety vents ensure that if the bottle is accidentally unscrewed under pressure, it will be fully vented long before the regulator can be removed. Because no thread locking compounds are used, and torque values are lower, the Max-Flo SIS is the only screw-in compressed air regulator that can be readily removed for TSA air travel compliance without violating its manufacturer's operation guidelines. Smart Parts recommends removal and installation by a factory certified technician, training for which is available to team techs.

Low-Profile Fill Nipple – Keeping with the compact size of the Max-Flo SIS, Smart Parts has employed a compact, low-profile fill nipple. By using an allen-wrench on internal hex flats for installation, the fill nipple avoids the need for external wrench flats, and the height they add has been eliminated. The Max-Flo SIS fill nipple uses industry standard 1/8-inch NPT threads, allowing standard fill nipples to be used as a replacement, if needed.

High-pressure and Low-pressure Burst Disk Protection – Unified burst disk assemblies protect the regulator and cylinder from over-filling, and protect the player's marker from high-pressure regulator leaks. It amazes me that some of our competitors have released air systems without the protection of a low-pressure burst disk, says Smart Parts director of technical sales, Hans Semelsberger. It may help them to reduce size and cost, but if a bit of dust or if a worn seal causes the regulator to leak, they will end up feeding full tank pressure to the marker, which can be catastrophic. That's a short-cut we're just not willing to take.

Made in the USA – From start to finish, machining of raw parts to assembly and testing, the Max-Flo SIS is made and supported by American workers in the great state of Pennsylvania. When the paintball industry boomed a few years ago, other companies took profits and ran. We chose to invest in the future, says Bill Gardner Jr. We now have one of the most advanced machining facilities in the state with equipment that no-one else has outside of the automotive and aerospace industries. We can machine parts in-house for less money than everyone else in paintball who is manufacturing overseas, while maintaining tighter quality control. This is the reason we can make use of stainless steel components and the longer machining time they require to produce. The bottom-line is that we can deliver better quality to the player at a more affordable price, giving them the most value for their paintball dollar.
Product Availability 
The Smart Parts Smart Parts Max-Flow S.I.S. HPA Bottle is newer, so it should be commonly available, both new and used.
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outkastmike Saturday, May 2nd, 2009
Period of
Product Use:
Less than a month3 of 3 people found this review helpful.

More than 5 years
Products Used:
Marker Setup: Geo
DXS 1.1 bottle
Strengths: Small
low profile fill nipple
Smart valve
Stainless threads
Built in the usa
Weaknesses: Maybe Price for some
Only sp's fill nipples fit due to low profile feature.

I managed to blow my main seal on my Crossfire reg so i decided to look for a replacement reg rather than sent it in to get fixed due to shipping prices from the UK etc....
I spent a few days looking and came across the new SIS reg by Smartparts and liked the size and special safety features it had.

After arriving i took it out of the packaging and my first impressions was of a nice compact reg in polished silver alloy giving it a almost prototype type of look to it,in my hands it felt reasonably light,to be honest not any different weight wise compared to my Crossfire reg.
Build quality is superb as its buit completly from the ground up in the USA not one part is made or assembled abroad so you know its a 100% safe product
The first thing you notice is how short it is compared to most other regs out there it is almost 2" shorter than my DYE Throttle/Crossfire reg and similiar to a Myth reg size wise.
The filtered air fill nipple is recessed into the reg body and requires a 1/8th allan key to remove it from the main body if you ever need to replace the nipple,so i would presume only smartparts fill nipples will work (i will update my review with regards to this once i find out for sure if aftermarket nipples fit).
It also comes with stainless steel asa threads instead of the usual cheaper alloy ones found on other cheaper regs.

The low and high pressure burst disc's are of the standard affair and sit opposite each other and are inline with the gauge and fille nipple.

The SIS reg also comes with the SmartValve anti lauch attachment as standard as an extra safety feature to help prevent accidental unscrewing of the reg from the bottle,this is an excellent and unique feature provided by SP on the SIS reg.

Fitting the reg to a bottle is a breeze,simply hand tighten the reg into the bottle and place the specific sized allan key into the pin valve socket in the top of the reg and torq to the required strenght setting,this is a great way to tighten and remove the reg from the bottle as it requires the user to depress the pin valve down to allow the allan key into the pin valve part of the the reg if you want to remove the reg at anytime warning the user know if there is any residule air still left in the bottle

Using the reg is like just about every other good quality reg on the market delivering good reliable flow rates and with no spikes whatsover.

Conclusion: I have to admit the SmartParts SIS regulator delivers with its low profile and safety feature's that are second to none and consistant flow rates i would happily say it's one of the best out there and worth every penny simply due to the safety aspect that it offers.

I wont give the SIS reg a 10/10 as i feel there is no perfect air system on the market and there is always room for improvment,but this is a very close 9/10.
9 out of 10Last edited on Saturday, May 2nd, 2009 at 4:36 am PST
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Shanie_Wanie Monday, July 27th, 2009
The accuracy of this review is disputed. Please see discussion on the comments page.
Period of
Product Use:
4 years0 of 4 people found this review helpful.

More than 5 years
Marker Setup: Ion, b2, 45/3000
Strengths: None that i can find. except maby the size.
Weaknesses: Everything
its a gas hog.
Review: I hate this product, its a total gas hog.i can only use 3 pods and a hopper without running out of air. yeah it makes your ion shorter but what good does that do realy? its heavy. I bought the biggest tank that ittl take a 45/3000 and its metal and heavy as all get out. i dont even know why smart parts made this product, i'd perfer a stock ion over one with a max flo.
Conclusion: Dont buy it, youll regret it, i do.i give it a two because the company put a lil money and i respect them for that cuz its a peice of junk.
2 out of 10
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