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What is the pupose of a check valve on recirculating hot water system?
Wiki User
∙ 14y ago
The check valve is a directional valve. Hot water needs to be piped from the top of the tank to the fixture, because that is where the hottest water in the tank is. If a return line is tied into the bottom of the tank, a directional valve (check valve) should be installed between the heater and the pump. That's what they taught me don't know if it really matter upstream or down stream. If you don't have a check valve the water could flow through the return line to the fixture instead of through the supply pipe and the water at the fixture might not be hot enough.
Wiki User
∙ 14y ago
Wiki User
∙ 16y agoThe hot water boiler heats water for household or business use. It must be supplied with water from a main. The check valve prevents heated water from being forced back into the water main. The thinking is that as water is heated, it expands. And this could lead to a "back feed" of the expanding water into the main and possibly contaminate the main.
Wiki User
∙ 19y agoA check valve allows water to flow in only one direction, so placing one between the toilet and the main will keep water from flowing into the stool from the drain.
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What is the purpose of a check valve on recirculating hot water system?
To prevent stratification of the hot water molecules into the cooler water as heat goes to cold
What does a check valve do?
A check valve restricts the flow of a liquid or gas in a piping system to one direction.
Can a check valve in a hot water system go bad?
Check valves can go bad, however I can't imagine where you'd have a check valve in a normal hot water system.
Your outboard leaks fuel out the air box?
The most likely culprit would be a flooding carburetor, which a good cleaning and possibly a gasket kit should cure. Other possibilities would include a blocked fuel recirculating check valve, or a broken reed valve.
Where is the check valve on a Ford Taurus fuel system 2000 24 valve v6?
check valve is location is on the brake boster vacuum hope this helps i just put one on the only check valve i know is for the emissions vapor purge system. check valve is on the top of the fuel tank.this will give you a check engine light with a evap failure code. or are you looking for the valve to check fuel pressure? that is on the fuel injector rail.more info will give more help
Where is the check valve on a 1994 Jeep Grand Cherokee Limited 6-cylinder fuel system in pump in pump assembly or elsewhere?
The flow back check valve is in the pump.
What does an egr valve do on a 1999 Chrysler Town and Country?
It helps controll emissions by recirculating exhaust gasses back into the engine to lower combustion temperatures. When it goes bad the check engine light can come on, the idle can become unstable, and it may cause a misfire.
How do you pipe recirculating hot water?
Go from the top of your hot water tank and make your line go to every fixture and after last fixture go back to the tank and connect back into pump, make sure you install a check valve on line at pump
What are advantage and disadvantage of check valve?
Some of the advantages to using a check valve include the fact that it prevents back flow, and it can be used as a backup system. Disadvantages of the check valve would be the fact that it cannot be used with all systems, and it can cause damage if it slams shut.
Why is your 2001 jaguar check engine light on?
check for an emmission control system problem such as the heated cannister purge valve
What is a vacuum modulator e g r valve?
The exhaust gas recirculation valve uses exhaust gases in order to reduce nitrogen oxide emissions, it does this by recirculating a portion of an engines exhaust gases back to the cylinders.
Why does the spa draining back into your pool after the system shuts down?
You need to have your check valve replaced.
