Flame King ACR-2a 2-Stage Auto Changeover LP Propane Gas Regulator for RVs, Vans, and Trailers (Without Pigtails)
Condition: New
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Availability:
In Stock.
Arrives
Wednesday, May 27
Recently Viewed
Style: Newest Model
Features
- Allows removal of an empty cylinder for refill without interrupting the propane supply
- For RVs with dual propane tanks, it automatically switches from the primary tank to the reserve tank when the primary is empty
- UL LISTED: Inlets are 1/4" SAE inverted flare, and the outlet is 3/8" NPT female pipe thread; rated for 345,200 BTU
- Double-stage design maintains constant gas pressure under changing demand and conditions; the regulator is factory set at 11" WC (water column); lockout pressure is up to 14.9" WC
- Compatible with Flame King's 48-inch Thermo Plastic Hose (Model 100383-48) and 12-18 inch INVERTED FLARE Pigtails (Models E12INPT, E15INPT, or E18INPT)
- For your safety and to ensure leak-free performance, these regulators are assembled using high-strength thread-locker (Loctite) on the adapter connections where the pigtails are attached. This is an intentional safety measure designed to keep critical fittings secure and prevent gas leaks during use.
- Note: NPT pigtails are not recommended.
Features
- Allows removal of empty cylinder for refill without interrupting propane supply.Fit Type: Universal Fit
- For RVs with dual propane tanks; Automatically switches from primary to reserve tank when primary is empty
- Pairs well with our 48 Inch Thermo Plastic Hose, item 100383-48.
- Double stage design maintains constant gas pressure under changing demand and conditions
- Inlets are 1/4" SAE inverted flare and outlet is 3/8" NPT female pipe thread
Manufacturer: Flame King
Brand: Flame King
Model: ACR6a
Item Weight: 1.74 pounds
Product Dimensions: 7 x 4 x 4 inches
Country of Origin: China
Item model number: ACR6a
Exterior: Machined
Manufacturer Part Number: ACR6a
Date First Available: March 4, 2021
Manufacturer: Flame King
Brand: Flame King
Model: ACR-2a
Item Weight: 1.74 pounds
Product Dimensions: 7 x 4 x 4 inches
Item model number: ACR-2a
Exterior: Machined
Manufacturer Part Number: ACR-2a
Date First Available: March 4, 2021
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Wednesday, May 27
Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Top Amazon Reviews
Style: Newest Model
Gas for the on-demand water heater at my rural vacation rental is supplied in 100-lb cylinders or "tanks". As auto-switch regulators are not available locally, it seemed a good idea--and it was--to order via Amazon. However, as product information is sketchy, requests for guidance from "Mendel" at Flame King were a wasted effort, and since there is a good deal of misinformation re installation in the buyer comments, I offer what I wish I had found all in one place. It took days to learn what Flame King should have told me. Installation is easy, takes only a few minutes, IF you have at hand all the fittings you need. 1. MOUNTING bracket attached to the regulator is a horizintal flat metal plate with a pre-drilled bolt hole, easily affixed to any horizontal wooden or metal bar or shelf with a a bolt, a nut and a couple of washers. Time involved: depends on whether you need to a drill a hole on the mounting surface; otherwise 30 seconds. 2. INLETS: Regulator is shipped with PERMANENT brass female reverse-flair (concave) inlet fittings to accommodate threaded ¼" brass reverse-flare (convex) "pigtail" fittings. Some purchasers complain about difficulty in removing these permanent fittings, which is hard to do, will break the factory seals, and is a waste of effort. If your existing pigtails or new ones your order (see below) are of the male ¼" NPT (flat-end) type, you will need TWO ADAPTERS, ¼" female NPT to male ¼" reverse-flare (convex), available locally or via Amazon. Using yellow wrapping tape for gas, install the adapters (if needed) to the inlet fittings, wrap the pigtail connectors and install. Total time, maybe 3 minutes. 3. In some countries (not the US, but the one where I live), propane cylinders ("tanks") have reverse-thread connections (left or ccw to tighten, right or cw to loosen) called POL connections for the original manufacturer. If you use existing or new POL pigtails, see the note above about NPT vs. reverse-flair fittings. Time involved: for connecting pigtail to tanks, 15-30 seconds each side. 4. OUTLET. Regulator outlet has a ⅜" female pipe-thread fitting, and details of connection to the gas line supplying one or more appliances, depends on the nature of the existing installation. Whether cast iron, yellow polyethylene plastic pipe or (obsolete) copper piping, you will need a ⅜" male brass or polyethylene fitting to connect to the regulator. (Galvanized steel pipe not rec. for propane). 5. Finally, Amazon offered a "buy together" package including the POL reverse-thread pigtails I needed, 2 NPT-to-reverse flair adapters for the regulator inlets, and a roll of wrapping tape, all of which simplified ordering, worked perfectly and saved a whole lot of time.
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Reviewed in the United States on April 7, 2023 by David M. Fishlow David M. Fishlow
Style: Newest Model
My propane regulator stopped working, so I replaced it with this one. To me they both look the same. The new one works great, but I have only had it for a week or so. The pressure indicator is a little hard to see, but good enough. My last regulator only lasted a few years, which was disappointing. Hopefully this one will last longer, but it will take years to find out. If it is still working after 10 years, I would give it five stars instead of four. Ask me again in 10 years.
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Reviewed in the United States on August 19, 2023 by David
Style: Newest Model
Good buy for the money
Reviewed in the United States on October 6, 2023 by Terry
Style: Newest Model
Not sure the real issue but this is the third different branded one I have had to replace in 6 years... apparently these are just a throw away item.
Reviewed in the United States on September 20, 2023 by Chris
Style: Older Model
Just changed out the first time easily changed
Reviewed in the United States on September 19, 2023 by Bill walkup
Style: Newest Model
This was just what we wanted for our RV propane tanks.
Reviewed in the United States on September 17, 2023 by bounder
Style: Older Model
Easy to install. Works great
Reviewed in the United States on September 16, 2023 by K. Wakefield
Style: Newest Model
I like the part but Amazon had to send 2 of them before I could get one of them
Reviewed in the United States on July 20, 2023 by William Rickey