Choosing Between a Power Jet and a Suction Dredge Nozzle: Understanding the Advantages and Disadvantages

When it comes to dredging, two popular options are power jets and suction nozzles. Both systems have their own set of advantages and disadvantages, making it crucial for operators to understand the differences between them before making a decision.

One of the primary disadvantages of using a power jet is that both the power jet and supply hose must be kept underwater at all times. This can be challenging, especially in deep water or where visibility is limited. On the other hand, the power jet allows for deeper dredging because it lifts material higher than a suction nozzle can push it.

Another advantage of using a power jet is that operators only need to deal with one hose while dredging. In contrast, suction nozzles create a vacuum that sucks up water and gravel, pushing the material through the hose instead of being sucked through it like a power jet.

Suction nozzles work in a similar fashion to power jets, except they are attached at the far end of the material hose rather than directly to the header box. They come in various sizes, including 2-inch suction dredge nozzles, which can be easily secured with a 2-inch threaded coupling.

When choosing a suction nozzle, it's essential to ensure that the inlet diameter matches your pump fitting size and that your pump engine has enough power to move material at your preferred depth. For example, a Ke-SN2515 nozzle features an outlet size of 2.5 inches and an inlet size of 1.5 inches.

Prices for suction nozzles vary depending on their size, with prices starting at $135 for a 1.5-inch suction nozzle. These precision-made nozzles are manufactured from thin-wall plated steel tubing with machined orifices to create maximum suction pressure.

In conclusion, both power jets and suction nozzles have their own set of advantages and disadvantages. Operators must carefully consider these factors when choosing the best system for their dredging needs. For shallow water dredging, suction nozzles are an ideal option due to their precision manufacturing and ease of use.

2 inch suction dredge nozzle