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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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Keyword Search:
16 – 30 of 461 results
16

DWK Life Sciences Kimble™ Replacement Stopcock
SDP

Replacement for 17062F Series Burets

17

DWK Life Sciences Kimble™ Stopcock Plugs
SDP

Parts: PTFE nut, rubber washer and PTFE washer

18

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

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

19

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

For use with Kimax™ Microburet.

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™ 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
22

Bel-Art™ Replacement Stopcocks

Polypropylene body has Teflon™ PTFE plug, washer and bright red handle

23

Synthware™ Straight Bore Stopcock
GREENER_CHOICE SDP

Straight Bore Stopcock with a threaded pressure nut. Stopcock barrels are polished to prevent leakage due to uneven surfaces.

Type Straight Bore Stopcock
Plug Material PTFE
Material Borosilicate Glass
For Use With (Application) Organic Synthesis
Autoclavable Autoclavable
24

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
25

Synthware™ Replacement for Straight Bore Glass Stopcock, Plug Only
GREENER_CHOICE SDP

Glass plug ONLY.

Type Replacement Stockcock
For Use With (Equipment) S69 Series
Plug Material Glass
Material Borosilicate Glass
For Use With (Application) Organic Synthesis
Autoclavable Autoclavable
26

Troemner™ Regular Hosecock, Stainless Steel

Deliver accurate regulation or interruption of fluid flow

27

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
28

Thermo Scientific™ Nalgene Stopcock Assembly for Acrylic Burets
GREENER_CHOICE

For use with 25 mL Acrylic Nalgene Break-Resistant Burets.

29

Synthware™ Replacement 120° Bore Stopcock
GREENER_CHOICE SDP

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

30

Synthware™ T-Type High Vacuum Hollow Plug Stopcock
GREENER_CHOICE SDP

Precision ground with corresponding numbers on the barrel and plug.

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