Quick Answer
A 1.5-inch or 1.75-inch pipe is generally recommended for deep well submersible pumps, as it provides the optimal balance between flow rate and pressure drop. This diameter allows for efficient water flow while minimizing the risk of cavitation. Larger pipes may be required for extremely high flow rates.
Choosing the Right Pipe Size
When selecting a pipe size for a deep well submersible pump, it’s essential to consider the flow rate and pressure requirements. The pump’s manufacturer will typically provide recommendations for pipe size based on the pump’s specifications. For example, a 5-horsepower pump with a flow rate of 10 gallons per minute (GPM) may require a 1.5-inch pipe.
Pipe Materials and Features
In addition to selecting the correct size, it’s also crucial to choose a pipe that can withstand the harsh conditions found in a deep well. Stainless steel or Schedule 40 PVC pipes are popular choices due to their durability and resistance to corrosion. Some pipes may also feature specialized features such as check valves or strainers to prevent debris from entering the system.
Installation and Connection Considerations
When installing the pipe, ensure that it is properly connected to the pump and any additional equipment, such as fittings or valves. Use high-quality couplings and adapters to minimize leaks and ensure a secure connection. It’s also essential to ensure that the pipe is properly supported and secured to prevent sagging or kinking, which can lead to reduced flow rates or even pump failure.
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