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Stopcocks
Stopcocks work as valves, serving to regulate, interrupt, or completely stop gas or liquid flow through piping, tubing, or a faucet, with tubes attached to the stopcock’s female joint, easily separated or connected by a turn of the stopcock. Stopcocks may be held in place by vacuum, rubber rings, or clips. Glass stopcocks need stopcock grease for lubricating and sealing the plug and shell. Glass stopcocks with plastic plugs are sealed without grease but are less effective for high vacuum. Plastic plug glass stopcocks, however, work well for low vacuum applications.
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Inserts into the ground glass side-socket of an aspirator botte. Pyrex™ Borosilicate Glass Aspirator Stopcock with Ground Cone provides a leakproof seal.
Experience in-house fluid transfer system flexibility with a Thermo Scientific™ Nalgene™ Three-way Stopcock, arranged in a T-shape to connect any two — or all three — arms of the stopcock with ease.
Manufactured from Pyrex™ borosilicate glass with PTFE key, for superior chemical resistance. Pyrex™ Borosilicate Glass Stopcock with Key are made to a taper of 1:10 giving a combination of performance and ease of operation.
Perfect for handling higher flow volumes in process while using connections similar to luer systems. Cole-Parmer™ 3-Way Large Bore Stopcock is non-sterile and not approved or intended for medical, clinical, surgical or other patient oriented applications.
