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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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76 – 90 of 443 results
76

Thermo Scientific ASSY VALVE 3WAY LP

NC3002224 ASSY VALVE 3WAY LP

ENCOMPASS
77

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
78

Chemglass Life Sciences Stopcock, Double Oblique Bore, PTFE Plug, 4mm Bore, 14.4/44 Plug Size, 10mm OD Sidearms

Stopcock, Double Oblique Bore, PTFE Plug, 4mm Bore, 14.4/44 Plug Size, 10mm OD Sidearms. A 1:5 taper PTFE stopcock with two parallel diagonal bores.

ENCOMPASS_PREFERRED
79

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.

ENCOMPASS_PREFERRED
80

AVANTOR MASTERFLEX (VWR LLC) VALVE STOPCOCK 1/8 TUBE 2W

NC3863459 VALVE STOPCOCK 1/8 TUBE 2W

ENCOMPASS
81

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

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

ENCOMPASS_PREFERRED
82

Ace Glass, Inc. Stopcock, 0-8mm, 90° arms, high vacuum, PTFE plug with knurled PTFE handle, completely bakeable

Stopcock, 0-8mm, 90° arms, high vacuum, PTFE plug with knurled PTFE handle, completely bakeable

ENCOMPASS_PREFERRED
83

Ace Glass, Inc. Plug, stopcock, glass, 1mm T-bore, 17/40

Plug, stopcock, glass, 1mm T-bore, 17/40

ENCOMPASS_PREFERRED
84

Ace Glass, Inc. Plug, stopcock, glass, 3mm T-bore, 20/44

Plug, stopcock, glass, 3mm T-bore, 20/44

ENCOMPASS_PREFERRED
85

Chemglass Life Sciences Stopcock, Straight Bore, 1-Arm Larger, Complete w/PTFE Plug, 6mm Bore, 16/35 Plug Size, 11mm & 12mm OD Sidearms

Stopcock, Straight Bore, 1-Arm Larger, Complete w/PTFE Plug, 6mm Bore, 16/35 Plug Size, 11mm & 12mm OD Sidearms.

ENCOMPASS_PREFERRED
86

Ace Glass, Inc. 0-10mm stopcock (c) bakeable plug Hi-Vac

0-10MM STOPCOCK (GLASSBLOWER)

ENCOMPASS_PREFERRED
87

Ace Glass, Inc. 0-5mm stopcock (c) bakeable plug Hi-Vac

0-5MM STOPCOCK (GLASSBLOWER)

ENCOMPASS_PREFERRED
88

Chemglass Life Sciences Stopcock, Straight Bore, Glass Plug, Pressure, 2mm Bore, 12/30 Plug Size, 8mm OD Sidearms

Stopcock, Straight Bore, Glass Plug, Pressure, 2mm Bore, 12/30 Plug Size, 8mm OD Sidearms. Solid glass plug has a threaded glass snelling which accepts an assembly similar to the one supplied with standard PTFE stopcocks. This consists of a PTFE washer, PTFE nut and Viton O-ring. Assembly provides for uniform seating tension to be applied to the plug which is precision ground and hand-lapped with corresponding numbers on the barrel and plug.

ENCOMPASS_PREFERRED
89

Chemglass Life Sciences 6mm Bore, 16/35 Plug Size, 12mm OD Sidearm

6mm Bore, 16/35 Plug Size, 12mm OD Sidearm. Straight bore stopcock having a 1:5 taper solid PTFE plug.

ENCOMPASS_PREFERRED
90

Chemglass Life Sciences 4mm Bore, 17/40 Plug Size, 10mm OD Sidearm, #4 Clip Size

4mm Bore, 17/40 Plug Size, 10mm OD Sidearm, #4 Clip Size. Straight bore glass Stopcocks are supplied complete with the listed size metal retaining clip CG-423.

ENCOMPASS_PREFERRED