The 'back pressure' and 'blocked pressure' of mini water pump

In the context of a DC diaphragm mini water pump, back pressure and blocked pressure are terms related to the pump's performance characteristics. Let's break down what each term means:

1. Back Pressure: Back pressure refers to the resistance or pressure that the pump has to overcome when pushing water through a system. In other words, it's the pressure exerted by the system downstream of the pump that opposes the flow of water. This can include factors such as the pressure required to lift water to a certain height or to overcome any restrictions, like narrow pipes or fittings, in the plumbing system.

When a mini diaphragm pump is operating against back pressure, it needs to work harder to push water through the system. The higher the back pressure, the more load the pump has to bear, and this can affect its flow rate and overall efficiency. Some mini high pressure water pump is designed to handle higher back pressures, while others might struggle and experience reduced performance in such conditions.

2. Blocked Pressure: Blocked pressure, also known as shutoff  pressure or dead-head pressure, refers to the maximum pressure that the pump can generate when its outlet is completely blocked (i.e., no flow is allowed). When the outlet is blocked, mini hydraulic pump continues to operate, building up pressure until it reaches a point where it can't push water against the resistance anymore. This value is usually higher than the pump's operating pressure under normal conditions.

Blocked pressure is an important parameter to consider because it helps you understand the pump's maximum capability in terms of pressure generation. However, it's important to note that running the pump against a closed outlet for extended periods can lead to overheating and potentially damage the pump, so it's not recommended to operate a pump in this manner for prolonged periods.

Both back pressure and blocked pressure can affect the choice of the DC water pump for a specific application. It's essential to consider these factors along with other specifications like flow rate, power consumption, and the intended use of the pump to ensure it performs optimally and reliably in your desired setup. Always consult the manufacturer's specifications and guidelines when selecting and operating a pump to avoid any potential issues.