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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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Autoclavable

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316 – 330 of 447 results
316

Chemglass Life Sciences Stopcock, Straight Bore, Glass Shell only for PTFE Plug, 3mm & 4mm Bore, 15.2/30 Barrel Size, 10mm OD Sidearms
SDP

Stopcock, Straight Bore, Glass Shell only for PTFE Plug, 3mm & 4mm Bore, 15.2/30 Barrel Size, 10mm OD Sidearms. Glass portion only of CG-424 stopcock. Accepts 1:5 taper PTFE plugs.

ENCOMPASS_PREFERRED
317

Chemglass Life Sciences Stopcock, Straight Bore, PTFE Plug, 8mm Bore, 24/40 Plug Size, 16mm OD Sidearms
SDP

Stopcock, Straight Bore, PTFE Plug, 8mm Bore, 24/40 Plug Size, 16mm OD Sidearms.Straight bore stopcock having a 1:5 taper solid PTFE plug.

ENCOMPASS_PREFERRED
318

Chemglass Life Sciences Stopcock, Double Oblique, Glass Plug, Pressure, 2mm Bore, 14.5/50 Plug Size, 8mm OD Sidearms
SDP

Stopcock, Double Oblique, Glass Plug, Pressure, 2mm Bore, 14.5/50 Plug Size, 8mm OD Sidearms. Similar to CG-458, but with two parallel oblique bores. Plug is precision ground and hand-lapped with corresponding numbers on the barrel and plug.

ENCOMPASS_PREFERRED
319

Chemglass Life Sciences 2mm Bore, 12/30 Plug Size, 8mm OD Sidearm, #1 Clip Size
SDP

2mm Bore, 12/30 Plug Size, 8mm OD Sidearm, #1 Clip Size. Straight bore glass Stopcocks are supplied complete with the listed size metal retaining clip CG-423.

ENCOMPASS_PREFERRED
320

Chemglass Life Sciences Stopcock, Single Oblique, Hollow Glass Plug, High Vacuum, 2mm Bore, 12.6/40 Plug Size, 8mm OD Sidearms
SDP

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.

ENCOMPASS_PREFERRED
321

Ace Glass, Inc. 4mm stopcock T-bore hi-pressure
SDP

4MM STOPCOCK (GLASSBLOWER)

ENCOMPASS_PREFERRED
322

Ace Glass, Inc. 4mm stopcock straight bore hi-pressure
SDP

4MM STOPCOCK (GLASSBLOWER)

ENCOMPASS_PREFERRED
323

Qosina Corp QOSINA CORP

NC3929906 3WAY STOPCOCK 2F 1M SPINLOCK

ENCOMPASS_PREFERRED
324

PRECISION LABWARE 24/40 90 DEGREE GLASS STOPCOCK

NC2873909 24/40 90 DEGREE GLASS STOPCOCK

ENCOMPASS
325

Ace Glass, Inc. Stopcock, 0-5mm, 90° arms, high vacuum, glass plug with knurled nylon handle
SDP

Stopcock, 0-5mm, 90° arms, high vacuum, glass plug with knurled nylon handle

ENCOMPASS_PREFERRED
326

Sigma Aldrich Fine Chemicals Biosciences 1-way stopcock male Luer lock to 8 mm hose end | 1EA

1-way stopcock male Luer lock to 8 mm hose end | 1EA

ENCOMPASS
327

Ace Glass, Inc. 0-15mm stopcock w/UHDPE handle PTFE plug
SDP

0-15MM STOPCOCK (GLASSBLOWER)

ENCOMPASS_PREFERRED
328

Ace Glass, Inc. Stopcock, 0-3mm, 90° arms, high vacuum, PTFE plug with knurled nylon handle
SDP

Stopcock, 0-3mm, 90° arms, high vacuum, PTFE plug with knurled nylon handle

ENCOMPASS_PREFERRED
329

Thermo Scientific ASSY VALVE 3WAY LP

NC3002224 ASSY VALVE 3WAY LP

ENCOMPASS
330

Ace Glass, Inc. 3mm stopcock straight bore PTFE plug
SDP

3mm straight bore stopcock with polished barrels and 1:5 PTFE plug.

ENCOMPASS_PREFERRED