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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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Search Within Results
Keyword Search:
16 – 30 of 472 results
16

DWK Life Sciences Kimble™ Kontes™ Stopcock Valve for Microscale Organic Chemistry Kit
SDP

One-way stopcock valve made of nylon body and HDPE plug

17

DWK Life Sciences Kimble™ KIMAX™ Burets with Threaded Closures Replacement PTFE Stopcock Assembly
SDP

Replacement stopcock for educational buret 17121H.

18

DWK Life Sciences Kimble™ Replacement Stopcocks for KIMAX™ Microburet with Three-Way PTFE Stopcock
SDP

For use with Kimax™ Microburet.

19

DWK Life Sciences Kimble™ Kontes™ PTFE Plug for Straight Bore Stopcocks, Size 6
SDP

PTFE Stopcock Plug size 16/35 for 6mm bore size

20

DWK Life Sciences Kimble™ 2 mm Varibor Metering Value Stopcock Plug
SDP

Allows delivery of preset volumes of gases or liquids to reactions using the needle value

21

Synthware™ Double Oblique Bore Glass Stopcock
GREENER_CHOICE SDP

Double Oblique Bore Stopcock has diagonal, parallel bores to allow connection of single stem to both stems on the opposite side. Hollow glass plug option is precision ground with corresponding numbers on the barrel and the plug

22

Synthware™ Replacement Double Oblique Bore Stopcock
GREENER_CHOICE SDP

Double Oblique Bore Stopcock has diagonal, parallel bores to allow connection of single stem to both stems on the opposite side.

Type Double Oblique Stopcock
Plug Material PTFE
Material Borosilicate Glass
For Use With (Application) Organic Synthesis
23

Synthware™ Replacement 120° Bore Stopcock
GREENER_CHOICE SDP

Stopcock has bores to allow connection of any two arms at once.

24

Synthware™ 120° Bore Stopcock
GREENER_CHOICE SDP

Bored to allow connection of any two arms at once.

25

United Scientific Supplies PP/PTFE Stopcocks, 6 Pk.
SDP SCI_ED

United Scientific PP/PTFE Stopcocks are leak-proof and available in both two and three way

EDGE
Connectors Serrated Ports
Includes Stopcock
Outlet Port Serrated
Plug Bore 6 to 10 mm
Type Stopcock
For Use With (Equipment) Lab Tubing
Plug Material PTFE
Material Polypropylene,PTFE
For Use With (Application) Stopcock for Lab Tubing
Autoclavable Autoclavable
26

DWK Life Sciences Kimble™ Straight Bore Stopcock without plug, 4mm
SDP

Straight-bore, sandblasted stopcock with a 1:5 taper.

27

Synthware™ Replacement Straight Bore Stopcock
GREENER_CHOICE SDP

Supplied with PTFE plug, one PTFE washer and one O-ring.

Includes PTFE plug, One PTFE washer, One o-ring
Type Straight Bore Stopcock
For Use With (Equipment) Straight Bore Tap
Plug Material PTFE
Material Borosilicate Glass
For Use With (Application) Organic Synthesis
28

Synthware™ Offset High Vacuum Hollow Plug Stopcock
GREENER_CHOICE SDP

Stem OD: 8, 10 or 12 mm available, with hollow glass plug, Precision ground with corresponding numbers on the barrel and the plug.

Type Offset Glass High Vacuum Valve
Plug Material Glass
Material Borosilicate Glass
For Use With (Application) Organic Synthesis
29

Synthware™ T-Bore Stopcock, Glass
GREENER_CHOICE SDP

T-shaped bore connects any two or all three stems.

Type T-Bore Stopcock
Plug Material Glass
Material Borosilicate Glass
For Use With (Application) Organic Synthesis
30

Synthware™ Replacement for T-Bore Glass Stopcock, Plug ONLY
GREENER_CHOICE SDP

Glass plug ONLY.

Plug Material Glass
Material Borosilicate Glass
For Use With (Application) Organic Synthesis