Stopcocks

Stopcocks work as valves, serving to regulate, interrupt or completely stop the flow of a gas or liquid 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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241 – 255 of 468 results

241

Bio Rad Laboratories 2WAY STOPCOCK PLYPRP F-M 10/PK

Two-way Stopcock, Female to male luer, Polycarbonate, Polypropylene

Pricing & Availability

242

Chemglass Life Sciences GL-14 Demers TFE Delivery Tip, Package Of 10

GL-14 Demers TFE Delivery Tip, Package Of 10. Removable TFE delivery stem virtually eliminates the breakage normally associated with standard glass stem stopcocks. Made entirely of TFE, the stem attaches directly to the glass thread without o-rings or other gaskets. Glassware equipped with this stem can survive repeated forceful strikes to the stem without breakage. They have also been dropped from a height of 3 ft without breakage, so long as the initial impact was received by the TFE stem. US Patient Number: 5,580,528.

Pricing & Availability

243

Chemglass Life Sciences Threaded Stopcock, General Purpose, 90°, Complete

Threaded Stopcock, General Purpose, 90¿, Complete. A 2mm bore grease-free, general purpose stopcock is designed primarily for use in control of fluids. Excellent for use in construction of burettes, addition funnels and non-vacuum apparatus. Valve is constructed so that only glass and PTFE come in contact with fluids. Tip design provides for semi-needle valve metering action. Sidearms are 8mm OD and sealed to barrel at a 90¿ angle to one another.

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244

Chemglass Life Sciences 4mm Glass Shell Only

4mm Glass Shell Only. Replacement glass shell for CG42802 stopcocks.

Pricing & Availability

245

Chemglass Life Sciences Stopcock, Straight Bore, Glass Shell only for PTFE Plug, 5mm & 6mm Bore, 16/35 Barrel Size, 12mm OD Sidearms

Stopcock, Straight Bore, Glass Shell only for PTFE Plug, 5mm & 6mm Bore, 16/35 Barrel Size, 12mm OD Sidearms. Glass portion only of CG-424 stopcock. Accepts 1:5 taper PTFE plugs.

Pricing & Availability

246

Chemglass Life Sciences Adapter, Flow Control, Minum-Ware

Adapter, Flow Control, Minum-Ware. Used to regulate the input of liquids or gases into reactions. Stopcock is PTFE with a bore of 1mm. Inner joint is a 14/10.