I got the fittings EWS today. And let me reiterate my satisfaction with dealing with them. They know what they are doing and ship fast. So here's what I got...
This fitting goes in the valve after removing those fittings shown way above on the CNG valve:
File comment: Standard to Metric Converter Fitting and Compression Fitting.
MetricConverter&CompressionFitting.jpg [ 20.31 KiB | Viewed 5354 times ]
Here I show my CNG Tank Valve with 1 side blocked off and the other side with a conversion fitting. The plug is a standard 1/4" SOLID
plug. The plugs sold at Lowes are hollowed-out and not recommended for use on high pressure applications like this:
File comment: CNG Tank Valve with 1 side plugged.
CNGTankValveOneSidePlugged.jpg [ 41.93 KiB | Viewed 5354 times ]
Here's the valve with both converter fittings in it:
File comment: CNG Tank Valve with both sides usable.
CNGTankValveBothSidesUsable.jpg [ 42.54 KiB | Viewed 5354 times ]
I bought 2 converters as well as a plug because I envisioned putting the refueling valve on one side of the tank valve and the regulator supply line on the other. That would make mounting the refueling valve at/near the rear bumper more convenient and without the need of another expensive T-fitting. But I suspect I don't have enough stainless tubing to run tubing from the rear bumper, into the bed, back down and to the front of the truck where the regulators will be mounted to the frame. But I wanted the option so I bought 2 converter fittings.
If I do use both converters on the CNG tank valve, then I'd need to plug one side of the refueling valve. So I got this plug for doing just that:
File comment: Metric plug to block off a metric compression fitting.
MetricPlug.jpg [ 13.33 KiB | Viewed 5354 times ]
Here's the refueling valve with that plug blocking one side:
File comment: Refueling Valve with one side plugged.
RefuelingValveOneSidePlugged.jpg [ 48.04 KiB | Viewed 5354 times ]
The most annoying thing about this CNG conversion kit is there are OBVIOUSLY missing parts. The most obvious piece left out is the T-fitting required to split the stainless tubing from the tank to two regulators. I can't understand how this kit got put together and didn't include this necessary T-fitting. If I lived in a foreign country, it wouldn't be a big deal to find these metric fittings, but here in the US, metric fittings just are not readily available. Next time you are in Lowes, try to find metric fittings in the brass plumbing fittings area. So getting metric fittings like this aren't going to be cheap for that reason alone, but these are high pressure metric fittings which jacks their price up even more. I wish I'd bought 2 T-fittings, but those things are pricy. I also got a union so if I need to put a break in the line somewhere, I can join two tubes together. Here are the fittings:
File comment: T and Union compression fittings.
T&UnionCompressionFittings.jpg [ 30.92 KiB | Viewed 5354 times ]
I don't feel I should have had to buy this fitting in the 1st place. But since I had to buy other fittings from EWS, I went ahead and got it just in case Ace Sales continues to be a PITA about making this right. So far, they've been absolutely unresponsive on this issue. I haven't gotten an apology for the inconvenience nor a we'll-make-this-right
. Just silence. I can barely get them to admit that this is a problem.
The other major oversight to this CNG conversion kit is that it includes 2 regulators, but only 1 pressure gauge. Both regulators are identical and have a pressure gauge provision, so the only outstanding issue that I have is I need to plug the additional gauge provision on the 2nd regulator. To add to the annoyance, the gauge fitting is different than the compression fittings so I can't use a plug like I show above in the refueling valve. And what I can't seem to find is a plug for this fitting. Here's what it looks like. Unlike a compression fitting, this fitting has a flat-bottom:
File comment: Pressure Gauge fitting on CNG Regulator.
RegulatorPressureGaugeFitting.jpg [ 24.96 KiB | Viewed 5354 times ]
Here's the gauge that threads into that fitting. Notice the flat area on the bottom of the gauge that "crushes" into the flat bottom of the regulator fitting:
File comment: Threads on the Pressure Gauge that threads into the regulator.
PressureGaugeThreads.jpg [ 14.39 KiB | Viewed 5354 times ]
Interestingly, whatever thread that is happens to be VERY similar to the thread of a standard 1/4" plug. A 1/4" plug will thread in about 2-2.5 threads, then it binds. What I don't know is if it binds because one is a metric thread and the other is a standard thread or if it binds because the 1/4" plug is a taper-thread, not a straight thread. If push came to shove, I could probably use a 1/4" plug, but I'm not comfortable with 3600 PSI pushing against a plug that's holding on by only 2 threads. That just doesn't sound safe. So if a proper plug can't be found, I'm pushing for Ace Sales to get me another gauge or find a proper plug. I don't feel I should have to buy a gauge since this, like the T-fitting above, should've come with the kit. You CAN'T complete the installation of this dual-regulator kit without these missing pieces.
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