Precision Sampling Syringes are available in a wide range of sizes and models for gas, liquid or high-pressure sampling. Plunger tips are fabricated of PTFE, stress formed by a special process to insure a leak-tight seal. Syringe barrels up to 100 ul are hand-fabricated from borosilicate glass. Smooth bore prevents undue wear of the plunger tip and insures a smooth, durable seal. Standard needle attachment includes a barrier sleeve or packing of PTFE on the rear of the needle at the zero point. This isolates the sample from the needle cement, preventing possible dissolution of the adhesive or contamination of the sample. Many models are available in Luer-tip versions.

Valco Instruments Co. Inc.
Box 55603
Houston, TX, 77255