Pistons and seals designed to ensure your pump delivers the best performance.

• Sapphire pistons are meticulously cut at just the right angle, making them durable and long lasting
• Pistons are precisely aligned in their stainless steel holder to minimize wear on the piston and seal
• Piston seals are spring loaded and engineered to deliver optimal performance over highly dynamic flow and pressure ranges
• Seals are manufactured from a proprietary polymer blend and feature a spring made from the same high-quality stainless steel that is used in our pump's flow path

Agilent pistons are made from a high-purity, ceramic or monocrystalline sapphire for maximum durability. Agilent seals are designed to fit perfectly around pistons, and are capable of adapting to a wide range of flow rates and pressures. The combination of our piston and seal has undergone extensive testing under temperature stress, with all common HPLC solvents, and in many instruments, and have been shown to yield consistent, reproducible results.