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.

196 – 210 of 445 results

196

Chemglass Life Sciences Stopcock, 120° Bore, PTFE Plug, 2mm Bore, 15.2/30 Plug Size, 8mm OD Sidearms

Stopcock, 120¿ Bore, PTFE Plug, 2mm Bore, 15.2/30 Plug Size, 8mm OD Sidearms. A 1:5 taper PTFE stopcock with three sidearms sealed 120¿ apart. Plug has a bore to allow connection of any two arms at once.

Pricing & Availability

197

Chemglass Life Sciences Stopcock, 120° Bore, PTFE Plug, 4mm Bore, 16/35 Plug Size, 10mm OD Sidearms

Stopcock, 120¿ Bore, PTFE Plug, 4mm Bore, 16/35 Plug Size, 10mm OD Sidearms. A 1:5 taper PTFE stopcock with three sidearms sealed 120¿ apart. Plug has a bore to allow connection of any two arms at once.

Pricing & Availability

198

Chemglass Life Sciences Stopcock, Double Oblique Bore, PTFE Plug, 2mm Bore, 12.9/44 Plug Size, 8mm OD Sidearms

Stopcock, Double Oblique Bore, PTFE Plug, 2mm Bore, 12.9/44 Plug Size, 8mm OD Sidearms. A 1:5 taper PTFE stopcock with two parallel diagonal bores.

Pricing & Availability

199

Chemglass Life Sciences Stopcock, Double Oblique Bore, PTFE Plug, 6mm Bore, 20/65 Plug Size, 12mm OD Sidearms

Stopcock, Double Oblique Bore, PTFE Plug, 6mm Bore, 20/65 Plug Size, 12mm OD Sidearms. A 1:5 taper PTFE stopcock with two parallel diagonal bores.

Pricing & Availability

200

Ace Glass, Inc. 4MM HI VAC STOPCOCK (GLASSBLOWER)

4MM HI VAC STOPCOCK (GLASSBLOWER)

Pricing & Availability

201

Ace Glass, Inc. 2MM HI VAC STOPCOCK (GLASSBLOWER)

2MM HI VAC STOPCOCK (GLASSBLOWER)

Pricing & Availability

202

Ace Glass, Inc. 0-3mm stopcock w/UHDPE handle PTFE plug

0-3MM STOPCOCK (GLASSBLOWER)

Pricing & Availability

203

Chemglass Life Sciences Stopcock, Single Oblique, Hollow Glass Plug, High Vacuum, 4mm Bore, 17.35/50 Plug Size, 10mm OD Sidearms

Hollow plug, oblique bore stopcock is precision ground with corresponding numbers on barrel and plug. Lower vacuum chamber is evacuated via a separate hole in the plug which is not in the line of flow.