Crossfire Paintball Hydro Testing
Jun 23, 2008 - Crossfire will also hydro test any brand of tank and they offer a very competitive regulator trade in program. Crossfire can also customize your. Well been out of paintball for a good long while and I know my tanks are all. Crossfire Paintball Hydro Test: American Paintball Hydro Testing.
It was 2 weeks away from the big-game and while packing I discovered my 45/4500psi HPA tank I bought from Ninja Paintball was a week away from being due for hydro-testing.If you don’t know, on every tank there is a date of birth, and 5 years from that date that tank will be ‘due’ to be tested and certified as safe-to-fill. Finding that date of birth is pretty easy. This video does a good job showing you how.These are. You won’t get arrested for if you don’t hydro-test it -BUT it is something you should do if you care about your safety and want to play at a real paintball field. Real fields will check your dates.I knew that being a week past the hydro date wasn’t that big of a deal, especially since the tank had been empty and only used a handful of times.
Paintball Tank Hydro
I also knew that the fill stations there would be self-serve, so there wouldn’t be anyone to turn me away so why not save that $40-some bucks for paint at the big game??Peace of mind is a powerful persuader. Filling my tank knowing it will be full of 4500 pounds per square inch of pressure was enough to get me to send it in to get re-certified. Plus it would have to be done sooner or later if I wanted my tank filled at the local field.Picking a place to get it re-certified wasn’t so easy.
I kept coming across hydrotester.com, which was cheaper than the other services. I was close to sending my tank in, but after reading reviews of them, seeing that some were disgruntled about the customer service was enough to persuade me to keep things simple and use a sure thing.Ninja paintball made my tank, they had a hydro service, they would likely know how to handle my tank -so they were a sure thing.Now I’ll say right away that I did not get my tank back in time for Oklahoma D-Day. The total time from shipping-out to receiving-back was 3 weeks. To me it felt like an eternity, and I was bummed I had to buy a new tank just to play at the event.The good news is tanks are getting cheaper every year. Sure, the cheap ones aren’t as light as the more expensive carbon-fiber ones, but they are awesome buys for those on a tight budget.
I picked up a small Guerilla Air HPA tank for $50. I was surprised at the efficiency of the regulator. Not bad for $50! The con being it is heavy, but with my setup I found it balanced my marker nicely with a full hopper.This was a learning experience.
I’ll go ahead and share some of what I learned. There are lots of services online ran by scuba shops, but sometimes the safe-bet is going through the manufacturer, even if it costs a little extra.
If you use an online service, expect to pay extra for removal and re-installation of the reg. Otherwise have some locktite and tools ready to do it yourself. Make sure you know what you are doing before you DIY. It’s a little extra to have them do it, but it might be worth the price knowing it will be done right. As tanks get cheaper, paying $40 to get an older tank re-certified will make less and less sense. Hopefully the test price will go down in time as well.
For online services, expect a 3-week turnaround time. I did read that some services took as long as 6 months -which is ridiculous!
Shop around if that’s the case.Getting your tank done by Ninja Paintball is pretty simple. Print off their form, select which service you want, add payment details. Box up your tank, mail it out to them. Wait. They call saying it is done and they will be shipped out. Sign for the package from the UPS guy.That last part was the hardest. Finding a time to be home when they came by was harder than it should have been.
The best thing you can do is sign up for UPS MyChoice and give them a time to deliver, or enter your details online so you won’t have to be there to sign for it. That allows them to drop it off.Hopefully you now have some ideas of what to expect when it comes to getting your HPA tank hydroed online. Not everyone has the luxury of having a scuba shop nearby, so these online services are a definite help.
Overview of Volumetric Hydro-TestingVolumetric Hydrostatic TestingJuly 17, 2007By Charles Grenci, President1. The Basics: A condensed primer providing an overview of theprocedure and equipment.Do you rememberwhen Jaws lost its appetite when a SCUBA cylinder failed the gunfire test?
Themyth busters demonstrated that what happened to Jaws could happen to anything oranyone in proximity to a compressed gas cylinder when it suddenly fails tocontain the pressure inside. If the cylinder failure is in proximity to otherpressurized cylinders, a domino effect can create multiple powerful explosions.It may be helpful to have some kind of information about just how much energy iscontained in a compressed gas cylinder to give people an appreciation for thevalue of testing them periodically.Fortunately compressed gas cylinder accidents are rare in mostplaces. We at Galiso Incorporated are thankful that we have had the opportunityfor 45 years to participate in the process of testing compressed gas cylindersaround the world. People use the equipment that we make to verify that gascylinders can safely contain the pressurized gas that the cylinder provides. Dragon games free download. Weight Expansion Measurement SystemWEIGHT EXPANSIONMEASUREMENT SYSTEM1.0 The weight expansion measurement system (WEMS) incorporates the methodology of volumetric expansion by measuring the weight (rather than the volume) of water displaced in a volumetric expansion test. The WEMS uses a siphon tube instead of an open top burette tube to measure the weight of the water displaced. The WEMS is based upon the scientific correlation between the volume of water and the weight of water: 1 cubic centimeter of water weighs 1 gram of water (at 4 degrees Celsius).
Therefore the WEMS simply measures the weight of water displaced by using a weigh container on a digital weigh scale or load cell, and then determines the expansion of water displaced.1.1 The weight expansion measurement system has certain practical advantages over the burette system. Most importantly it eliminates any possibility for operator interpretation error during burette meniscus expansion readings. Second, the expansion volumes can easily be determined with great precision and then communicated to operators or to computer-controlled automated testing systems. In addition, WEMS eliminates the need for fragile glass burette tubes and plumbing to multiple burette tubes.1.2 However, there are several factors that must be addressed to ensure the accuracy of the WEMS: temperature, the buoyancy effect of the siphon tube, the effect of water column height, and the accuracy of the weight measurement device. All of these factors may affect the accuracy of the weight expansion readings unless adjustments are made to account for their impact on the readings.1.3 The effects of water column height change and buoyancy of the siphon tube can be easily determined by pouring a known quantity of water into the expansion measurement container when the device is open to a test jacket. The weight measurement device can be easily tested and verified by using a calibrated reference weight to determine its accuracy. Water density changes due to temperature can be corrected mathematically using known water density values at various temperatures (See Appendix B).1.4 In a hydrostatic testing system, the above factors can operate inversely such that the aggregate impact of all effects combined has a negligible impact on the accuracy of the expansion values derived.
Various tests have been conducted to verify that such combined effects do have a very minute effect on expansion values at ambient temperatures around 22 Centigrade.1.5 The accuracy of a weight measurement device is tested by placing a calibrated reference weight upon it to verify its accuracy. Next, 100 cubic centimeters of water at ambient temperature is weighed into a container using another calibrated digital scale with a resulting weight of 99.7 grams (see Appendix B for resulting weights at different temperatures).
The 100 cubic centimeters of water are then poured into a 3 liter square expansion container that rests on the expansion measuring weigh scale. Expansion weight values are then recorded. The process is repeated in 100 cc increments with expansion weight measurements being recorded respectively at each 100 cc volume level.The following expansion testing data and graphs clearly portray the minute and negligible impact resulting from the combined effects of temperature, buoyancy, and water column height.APPENDIX A:APPENDIX B.
Open Letter Re: CalibrationGreetings from Galiso IncorporatedThis letter pertains to the recent changes to the calibration values for your calibrated cylinders. Galiso technicians have found this to be necessary on many Recortest 4 installations and upgrades. The reasons that the cylinder values are no longer correct are thinning of the cylinder walls due to corrosion and or incorrect previous calibration.Calibrating a cylinder on site with the installed / upgraded machine requires a check of each of the 4 calibration accuracy issues to establish that the cylinder calibration values that are done on site are accurate. When there is a discrepancy in prior calibration values to present ones, a check of each of these four calibration accuracy issues is important to prove the new calibration data is correct.These issues are:.Accuracy of pressure measuring device.
Verified with master gauge.Accuracy of expansion measuring device. Verified with test weights.Temperature. Measured to determine the weight of water during calibration.Buoyancy. Checked with the a pour test and adjusted for temperature.Regarding issue 1, the Recortest 4 uses a digital pressure transducer that is a high accuracy, traceable pressure standard suitable for calibration of cylinders. Because the.02% accuracy of this transducer is better than the.25% accuracy of the master gauge the master gauge is used to confirm that the transducer is functioning properly but we do not calibrate the digital transducer to the gauge. This we believe is a major factor in the need for us to re calibrate cylinders during Recortest 4 installations and upgrades.
Prior to the installation / upgrade it was possible to adjust the pressure transducer to match the expansion values. We also verify that the pressure circuit comprised of the high pressure pump, valves and tubing, hoses, test head, and cylinder are not leaking.Regarding issue 2, in most cases the load cell weigh bowl assembly is replaced by the digital Recortest 4 weigh bowl scale. The accuracy of this digital scale has proven to be very stable over time and eliminates the need for frequent calibration.Regarding issue 3, When the ambient temperature is 4 degrees c / 39 degrees f, one cc of water weighs 1 gram but at 40c/104f room temperature, one cc of water weighs.992 grams which is a accuracy loss of negative.8%. By determining the ambient temperature we can correct its effect on the weight of water when we perform a pour test to verify the accuracy and leak integrity of the complete expansion circuit comprised of the weigh bowl, siphon tube, plumbing and valves, test jacket, test head and cylinder.Regarding issue 4, We determine the effect of siphon tube buoyancy on the system that will be used to create calibration cylinder values.
To do this we open the expansion circuit to the weigh bowl with the cylinder to be calibrated in the test jacket. Then we pour 100cc of water into a cup on a separate scale by using the weight of water at ambient temperature. For example if the ambient temperature is 20 degrees c / 68 degrees f, then we would pour 99.8 grams of water into the cup. Next we pour the water out of the cup into the weighbowl of the Recortest 4 that is connected to the test jacket with the calibrated cylinder. This test is performed several times to verify that the complete expansion circuit is accurate and stable.We then run repeated tests at each calibration pressure to gather the expansion data for each pressure point.
Finally we check the linearity of all calibration points and then create a certificate of expansion values for the calibrated cylinder. If you have any further questions about this work please feel free to contact our service team anytime.Thankfully yours – The Galiso teamSCI Articles.