In a water system, certain limits are set to stop reducing results from the flow of the fluid velocity. These limits should never be exceeded by the fluid flow velocity. Here is a list of the some of the most important fluid velocity limits that you should know, and a brief guide to using the right pumps.

Maximum Velocity for Water Systems
Here's a list of the maximum velocity limits for commonly used water systems. Note that flow velocity is usually measured in m / s, or meters per second or ft / s, foot per second. Below, both measurements are listed for easy reference.
· Average tap water: 1.0 – 2.5 m / s or 3.3 – 8.2 ft / s total
· Tap water with a low noise: 0.5-0.7 m / s or 1.6 – 2.3 ft / s maximum
· Heating circulation: 1.0-3.0 m / s or 3.3 – 9.8 ft / s total
· Cooling water: 1.5 – 2.5 m / s or 1.6 – 2.3 ft / s maximum
· Suction boiler feed water: 0.5 – 1.0 m / s or 1.6 – 3.3 ft / s limits
· Condensate: 1.0 – 2.0 m / s or 3.3 – 6.5 ft / s limits

Using a Water Velocity Pump
Now that you know what the maximum velocity limits are for common, everyday use water systems, it's important to know just how to control it so it will remain within limits. For pools, boats, ponds, basements, and on-site construction, your key in maintaining and keeping water velocity is a water pump. This will move unwanted liquid and mud out of the designated area. Here's what to look for when you need to maintain water velocity and buy a water pump.

For outdoor projects on your boats, pools, ponds, and basements, where you are looking to keep the water out, you need a submersible pump. You should look for no electrical parts or separate moving parts. Using a water velocity pump that requires electricity or has a lot of small moving parts can cause harm through electrical shock, or damage to the pump itself by losing the moving parts.

If you need a pump for a construction project, look for something that can connect to a hose and has a long discharge height. It should be portable and versatile for easy use. For construction sites, you might be looking into a standard electrical submersible water pump. However, you should also consider one that does not require electricity. The V-pump is a brand that offers quality water velocity pumps, sold at a fraction of the cost of your average electrical water velocity pump.

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