What Is The Difference Between A Part 1 And Part 2 Float Valve?
27 Jul,2022

In order to choose the right float valve, you need to know the differences between each type. There is two most popular type of float valves, i.e., part 1 and part 2. 

Part 1 float valves have a spout on the underside, whereas a correspondingly shaped part 2 ball valve has an outlet spout on the top of its body. The spout of a part 1 ball valve is typically located in a feed or expansion tank. A part 1 ball valve is repairable only by replacing its packing washer. 

The float valves used in a Part 1 system do not feature any sort of adjustment to adjust the water level and are therefore not useful for irrigation. Part 1 valves should be replaced with a Part 2 valve to ensure proper water level control. 

A Part 1 float valve is an option for open-top tanks. These are usually more expensive but can be much more reliable. Part 2 float valves are also known as multi-purpose valves. They are typically used in evaporative coolers and tank systems. 

If you want to know more about the difference between a part 1 and part 2 valve, continue reading this article. 

What is the difference between a Part 1 and Part 2 Float Valve?

A float valve is a device that prevents water from overflowing the toilet tank. The older style floats are composed of a plastic ball attached to a metal rod. 

First of all, a float valve is a type of valve that controls the level of water in a toilet. There are two types, Part 1 and Part 2. They are typically found in feed and expansion cisterns, which are both designed to regulate the water level in the cistern. Both parts operate in much the same way, with the float arm raising when the water level increases and moving a rubber washer against the valve seat. However, their location is different.

The first type, the Part 1 float valve, is located on the underside of the cistern. It has a plastic nozzle attached to it. The Part 2 ball valve has a spout that is attached to the top of the valve body. A Part 1 ball valve is not recommended for use in irrigation systems as it has no water level adjustment mechanism. Instead, it needs to be replaced if it starts leaking water.

Part 2 float valves should be used when water pressure is too low for the Part 1 version. In those areas with low pressure, this valve is designed to prevent foul water from entering the toilet. The Part 2 valve should be fitted to comply with regulations. Both types should be HP valves, though. Part 1 valves are generally smaller in size. A Part 2 valve is more expensive.

The difference between a Part 1 and a Part 2 float valve is small. When the water level in the tank is high enough, the float valve will close. The difference between the two is the length of the float pilot arm. In practice, the water level constantly stays at a maximum level. However, if the float lever drops, the piston will release.

The main difference between a Part 1 and a P2 float valve is its location. Part 1 float valves are designed to have an underside outlet, while Part 2 float valves have a top outlet. Water is directed into the cistern via a small plastic spout that screws into the valve body. 

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