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Bowsmith Non-Clog Dripper

Bowsmith Non-Clog Dripper

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Product Description

The Bowsmith Non-Clog Dripper's unique design was patented in 1974. It has been proven, over and over, the unique NonStop Continuous Self-Cleaning Action (Pressure Cascade Principle) really works. The design is based on a very simple principle found in no other drip emitter. The Bowsmith Pressure Cascade Principle allows the emitter to tolerate large amounts of suspended solids in irrigation water, without clogging and without the need for fine-mesh filter screens. Even under conditions that would quickly clog ordinary emitters. Using only 30-mesh  filtration, Bowsmith NonStop emitters have operated successfully with water containing heavy concentrations of sand, silt, iron bacteria “slime”, calcium carbonates, even algae and moss.

Specifications: 

  • Single barb outlets - 0.250" and 0.175" barbs on opposite ends; either can be used as inlet/outlet
  • Minimum filtration: 30 mesh
  • Minimum Operating Pressure: 15 PSI

How it works: The flow path is a series of orifices in the silicone diaphragm.

In normal operation, the total pressure difference between inlet and outlet is divided equally across each of the orifices in the flow path. For example: 20 PSI inlet pressure, and 10 orifices in the flow path, the pressure drop across each orifice is 2 PSI. 

If an obstruction should occur in any of the orifices, the flow through that orifice will be momentarily restricted. As a result, the pressure drop across the orifice will increase, causing the orifice to enlarge until the obstruction has passed.

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