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For any syringe pump, the key to achieving the most accurate dispenses is eliminating all air from the fluid path. Traditional syringes trap approximately 50 µL of air between the tip of the syringe and the valve. For small syringes, this trapped air is the last to leave the syringe and the first to be drawn back in, making them difficult if not impossible to prime.

The Bubble Free Prime (BFP) syringe has a conical plunger tip that extends through the threaded termination and into the valve. This unique design expels the air from the syringe and valve decreasing the number of priming cycles required.

BFP vs. Standard Syringes

Part Number
1701BFP 10 µL Syringe
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1702BFP 25 µL Syringe
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1705BFP 50 µL Syringe
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1710BFP 100 µL Syringe
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1725BFP 250 µL Syringe
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1750BFP 500 µL Syringe
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1001BFP 1.0 mL Syringe
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1002BFP 2.5 mL Syringe
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1005BFP 5.0 mL Syringe
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1010BFP 10 mL Syringe
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1025BFP 25 mL Syringe
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1050BFP 50 mL Syringe
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1001BFP 1 mL Saltline Syringe *   info...
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1005BFP 5 mL Saltline Syringe *   info...
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1010BFP 10 mL Saltline Syringe *   info...
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* The Hamilton SaltLine syringes were specially developed to withstand harsh working conditions in demanding applications over a long product lifetime. SaltLine syringes successfully dispense highly concentrated buffers in life science applications and handle aggressive media or saturated salt solutions frequently used in the chemical or mining industries. The plunger tip will not be the conical design as on our other BFP syringes.