It would be best to never confuse a stainless steel ball valve with a brass one, mainly regarding ball valves. A ball valve is a shut-off valve that controls fluids or gas. When you visit a supplier, you can choose between two materials: Stainless steel or Brass. To choose the right one, it’s essential to know the differences. As well as the features of each material from ball valve suppliers.
Main differences
The stainless steel ball valve is for high-pressure connections like natural gas. Stainless steel is known for its durability and corrosion resistance. This makes this a long-term, high-pressure valve. Because of its high pressure, it can withstand pressure from 6000PSI up to 10000PSI. The lifetime of the stainless-steel valve will be 150,000 times on and off. This valve can withstand temperatures between -60 degrees to 160 degrees.
The brass ball valve manufacturer is designed for liquid or gas, not for high-pressure use. The sizes available for brass valves are ½ inch to 2 inches. The working pressure of brass ball valves is 600WOG. The lifetime is the same as that of stainless steel, at 150,000 times on and off. The temperature at which the valve can function is between -10 degrees to -120 degrees.
Features between stainless steel ball valves and brass ball valves
You must see each valve’s features to understand the differences between the stainless steel and brass valves. The features of the stainless-steel ball valves are: The nominal diameter is DN25, and it ranges from DN6-DN50.
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- Suitable for high pressure like hydrogen energy and gas.
- The port type is threaded. Comes in ferrule, BW but welding, UBM union butt welding, etc.
- Different end connection types are available.
- Comes with a self-sealing, anti-blowout stem.
- Temperature limits are between -60 degrees to 160 degrees.
Application differences between the Brass and stainless steel ball valves
The application of the stainless-steel ball valve is to control flow. This can be done by using a hollow, pivoting ball. It closes the valve by rotating it 90 degrees using the valve handle. The stainless steel makes the valve durable and resistant. It will be corrosion-free and can withstand extreme weather conditions. The stainless steel ball valve is designed for natural gas, which needs high-pressure valves.
Most valves are made from bronze or Brass. These valves are reliable and will be corrosion-resistant. Yet, it isn’t at the same level as stainless-steel valves. Industries that use these valves are marines, food processing companies, chemical plants, and homes. They don’t need as frequent replacements as other ball valves. It can also control fluids at different temperatures. Brass valves are more versatile because they accept welding better.
Properties between stainless steel and brass ball valves
Brass valves are made with a mixture of copper and tin. Some cheaper versions also have a small number of leads. This is why most brass ball valves are FDA-approved. Unless the company can prove that its brass products are lead-free. Brass has excellent heat and electrical conductivity, which makes it ideal for hot liquids and gas. It can be used outdoors as well as indoors at water heaters.
Brass valves are softer than stainless steel valves. They make sealing easier, especially for hot liquids like steam and water. The stainless-steel valve has no lead traces, making it more likely to get FDA-approved. Stainless steel is more stable at high and low temperatures. The valves are rust-resistant and are better when it comes to corrosion resistance. The seal of the stainless steel valve is better. No leaks are essential for high-pressure valves, and this is also why these valves are blow-out-proof. Regular maintenance should be done with the stainless steel ball valves. It isn’t as long-term as the brass valves.
Advantages and disadvantages between stainless steel and brass valves
This is why people choose this material for a ball valve. The benefits of the stainless-steel ball valves include:
- It is durable and can endure high pressures without wear, tear, and pressure failure.
- It is corrosion-resistant and will not rust or cause corrosion on the valve.
- Stainless steel handles temperature better, especially when it comes to high-temperature gas.
- These ball valves can be used for natural gas, marine water, and brewing systems.
Disadvantages of stainless-steel ball valves:
- Stainless steel ball valves are heavier than other metals. It can also influence the result of your work if weight is essential to it.
- Welding on these ball valves is more challenging and takes more skill.
Brass ball valve benefits:
- Brass is an excellent option for household plumbing.
- Less maintenance is needed, or fewer replacements to ensure a leak-proof valve.
- It can be used at higher temperatures than other type of ball valves
- It won’t cause corrosion because of salt water or chemicals.
Disadvantages of the brass ball valves
- In general, it will corrode more easily than stainless steel. However, it won’t cooperate like other materials.
- They are not designed for high-pressure plumbing.
Consideration for selecting the material
Knowing which type of ball valve to choose means considering these factors. This will make selecting the correct valve easier.
- What type of fluids will flow through the valve? Does it need high-pressure or low-pressure valves?
- Budget also plays a huge part in choosing the correct material ball valve
- How much temperature tolerance should the valve take?
- Do you need to weld around the valve? Brass valves take welding better
Different types of stainless steel and brass materials
Something interesting to know is that there aren’t many different materials used with brass ball valves. The only difference in materials is if it has led or not. Lead brass va ves should not be used for drinking water.
There are different types of stainless steel valves to consider. These are some stainless steel options you can choose from.
- Stainless steel 201. A lower amount of nickel present
- Stainless steel 304, also known as A2
- Stainless steel 316, marine-grade stainless steel
Different types of stainless steel and brass materials
Something interesting to know is that there aren’t many different materials with brass ball valves. The only difference in materials is if it has led or not. Lead brass valves should not be used for drinking water.
There are different types of stainless steel valves. These are some stainless steel options you can choose from.
- Stainless steel 201. A lower amount of nickel present
- Stainless steel 304, also known as A2
- Stainless steel 316, marine-grade stainless steel
Conclusion
The stainless-steel ball valve from valve distributors isn’t better than the brass ball valve. And visa versa. The different materials have to do with the level of pressure that it needs to take. Stainless steel can take more pressure than trespass. It would be best to decide which material to choose by considering where to install the ball valve. This guide is about the differences so that everyday people like you and me can choose the suitable material for their ball valves.