Netafim's BioLine is used for both surface and subsurface effluent disposal and recharge. BioLine is the perfect hydraulic delivery system, considered to be the world's most accurate pressure compensating dripperline. Netafim utilizes a patented technology based on a unique pressure differential mechanism which provides high emission uniformity and a clog resistant design. Available in two flows with many spacing options, BioLine provides design flexibility and superior uniformity for wastewater disposal and soil loading. Manufactured in purple for non-potable sources.

• BioLine's patented self-flushing, free-floating diaphragm allows the dripper to cleanse itself anytime during operation.
• BioLine is designed with a very large turbulent flow path, allowing particles to pass freely.
• The inlet of each BioLine emitter is raised 0.26" from the wall of the dripperline. This special positioning prevents sediment from entering the dripper when the system is not in operation.
• Each BioLine emitter contains a filter which further prevents particles from entering the dripper.
• BioLine utilizes a mechanical barrier to resist root intrusion and is impregnated with Vinyzene® (an antimicrobial additive) which prevents slime formation and provides protection for the life of the product.

High Emission Uniformity

• BioLine's integral dripper design allows the use of larger I.D. tubing to maintain high emission uniformities over long runs where pressure variations are extreme.
• Wide operation pressure ranges from 7 to 60 psi produce uniform dripper flow rates. Uniformity is maintained on steep topography layouts.
• Higher emission uniformity improves management of subsurface disposal systems.

Superior Design Advantages

• Netafim's Pressure Compensating Drippers have the lowest Cv (coefficient of manufacturing variability) in the industry. This is a result of Netafim's state-of-the-art manufacturing techniques and extremely high standards of quality control.
• Drippers are factory installed at regular intervals, as an integral part of the inside wall of the dripperline, leaving the outside of the tubing completely smooth and seamless. One-piece construction prevents damage to drippers during installation.

• BioLine is both chemical and wear resistant, maintaining its design flow over many years of use.
• Subsurface BioLine distributes the effluent at a low flow rate over the entire area, allowing slow lateral movement without percolation or surfacing.

BioLine® Technology

BioLine is an extruded polyethylene tube with patented drippers integrated inside at specific intervals using a special "welding process". The BioLine drippers are pressure compensating and provide uniform effluent application. The unique free-floating diaphragm ensures accurate and immediate flow adjustment with variations in pressure. The diaphragm is produced with high quality elastomer to insure super chemical resistance and durability.

The BioLine is a "low profile" dripper with the water inlet located 0.26" away from the tubing wall. Effluent enters the dripper near the center of the tube. This position is vitally important as it prevents sediments from entering through the water inlet, even between application cycles when water is not flowing through the system.

Continuous Flushing

The secret to the success of the BioLine is its ability to flush during operation. Particles that may accumulate at the dripper outlet cause a reduction of flow. The pressure above and below the diaphragm equalizes.

As this balance of pressure is achieved, the diaphragm is allowed to float freely. Particles are flushed out and the dripper resumes normal operation. This continuous flushing promotes reliable performance and longer life of your system.

Temperature vs. Flow Rate

Water temperature inside polyethylene tubing may reach 140°F in field conditions. The BioLine flow rate is not affected by changes in water temperature.

Many other pressure compensating emitters experience a decrease in flow rate as water temperature increases. This effect reduces the uniformity of flow and offsets some of the benefits of using a pressure compensating emitter.

Changes in water temperature can also affect the Cv of some pressure compensating emitters. This results in a flow rate decrease with increased temperature, and a decrease in uniformity of flow between emitters.