Glass Body Only for NMR

This lightweight and symmetrically balanced valve is designed to be sealed to the top of either 5mm or 10mm OD NMR tubes. The o-rings on the barrel and top stem are protected with PTFE wipers. Upper portion of the stem is extended with an additional o-ring for attachment to an adapter or the attachment tube. The attachment tube can be sealed to any standard taper joint. This feature allows for a sample to be dispensed directly from a vacuum line port into the NMR tube. Valve is tooled on 8mm OD standard wall tubing. Complete valve consists of a glass body, TFE plug and control knob and plain upper attachment tube.