Needle Valves and Accessories

Threaded stopcock with PTFE plug permits smooth needle valve adjustment down to 0.1cc/min.

Cylindrical wtih standard taper joint top and bottom, drip stem, pressure equalizing arm and double scale graduations, calibrated from stopcock. Drip stem does not extend beyond joint, thereby eliminating possible source of breakage.

Hat type needles are designed to be connected directly to a flat bottom valve port. Use the needle bushing part number 35056 to connect the needle directly to any 1/4-28 Hamilton valve.

7000 Series Modified Microliter&reg Removable needles Replaceable barrels and parts No dead volume Positive displacement syringe for use with liquids. A tungsten plunger wire travels inside the needle, eliminating dead volume.

Threaded stopcock with PTFE plug permits smooth needle valve adjustment down to 0.1cc/min.

Autoclavable Yes Gas Sterilizable Yes Hub Metal (N) Gauge 28 gauge Length 2 inch (51 mm) Point Style 3 Sales Quantity 6 needles per pack

Used to regulate the flow of gases or liquids into reaction systems. Stopcock has a bore of 2mm, and has an internal needle valve which permits for fine control of gases or liquids added to reactions.

313X PUMPHEAD 1.6MM TUBE WT EA

314X PUMPHEAD 1.6MM TUBE WT EA

Cylindrical wtih standard taper joint top and bottom, drip stem, pressure equalizing arm and double scale graduations, calibrated from stopcock. Drip stem does not extend beyond joint, thereby eliminating possible source of breakage.

Threaded stopcock with PTFE plug permits smooth needle valve adjustment down to 0.1cc/min.

Cylindrical wtih standard taper joint top and bottom, drip stem, pressure equalizing arm and double scale graduations, calibrated from stopcock. Drip stem does not extend beyond joint, thereby eliminating possible source of breakage.