Valterra (P23415LF) Check Valve, 1/2" MPT x 1/2" MPT
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Yes, that is correct. Carl's RV owes me a debt of gratitude.
I don't think there's any reason why it shouldn't be done. This brass check valve with a small plastic stem is designed to be used on RV water heaters. If it's going to be installed in a stationary location, you could always use a swing check valve instead of this inline type. Because the RV may not always be on level ground, I believe these are used in RVs.
Is your concrete cracking as a result of freezing or pressure? Keep in mind that this check valve is intended for use in camper applications with a maximum water pressure of 35 psi. Because the internal components are plastic, they will not withstand a lot of abuse. PEX can withstand cold temperatures, but it will not withstand freezing temperatures.
The Valterra P23415LF is designed for use in recreational vehicles (RVs).
Selected User Reviews For Valterra (P23415LF) Check Valve, 1/2" MPT x 1/2" MPT
It comes with a built-in check valve and an arrow indicating flow direction. For the tank side fittings, I used Permatex liquid pipe sealant, and for the other sides, I simply hand tightened the existing PEX water lines. NOTE: PLEASE READ THIS CAREFULLY BEFORE CONTINUING. After filling the water heater and allowing it to heat up, make sure to check for any leaks. As the water tank heats up, it creates additional pressure. After testing, I discovered that I needed to tighten the fittings once more to stop a slow drip. The up and down movement of the water lines while traveling causes a crack in the threads of the original cheap plastic fittings. These will never cause a problem, and they are now standard on all new Lance models. It was well worth the money.
The OEM plastic check valves that come standard on RV water tanks are a major safety hazard. Before we started using our 2020 Grand Design Solitude 3730 BH, I installed this brass check valve. Perfect fit, excellent quality, and peace of mind in the event of a leaking or broken plastic junk check valve (as shown in the last photo).
The little Attwod heater is a perfect match. I discovered water heater sediment in the cold water faucets because the old valve was squealing and had obviously failed!.
These are what I used to replace my camper's brittle plastic check valves. The plastic ones were leaking because they were breaking. My only concern is that because they are in direct contact with the aluminum tank, they may cause galvanic corrosion. I have a zinc rod on hand in the hopes of preventing this. If you plan to use these, I believe an anticorrosion rod should be installed in the drain. The only challenging aspect of the project was gaining access to the water heater, which, like many RV modifications, is difficult to do. If you don't have the patience to work on difficult-to-reach areas, you should hire an RV repairman to do it for you.
These were purchased to replace the check valves that came with my Atwood GCH10A- 4E Because one of the original valves was broken, I had to replace both of them. My 35" Winnebago Adventurer has no complaints, and the water system functions properly.
You'll run out of hot water if you don't have it. It's fantastic.
In our RV water heater, we replaced the cheap plastic check valve with this high-quality brass valve. There are no leaks and the system works perfectly. Use a thread sealant that can withstand high temperatures.
Exactly what I expected.