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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:
1 – 15 of 31 results
1

Buerkle™ Hose Tubing Stop-Cock

Hose tubing stop-cock – Simple reflux nozzle with two-sided hose nozzle.

Connectors 2-way
Type Hose Tubing Stopcock
For Use With (Equipment) Hose Tubing
Color White
Plug Material HDPE
Material HDPE
Certifications/Compliance RoHS
Autoclavable Not Autoclavable
Width (Metric) 7 mm
Pressure 0.3 bar
4
Promotions Available

Thermo Scientific™ Nalgene™ Three-way Stopcock

Experience in-house fluid transfer system flexibility with this three-way stopcock, arranged in a T-shape to simply any two — or all three — arms of the stopcock with ease.

EDGE
Outlet Port Tubulated
Type Stopcock
Plug Material Polypropylene
Material Polypropylene
5

Masterflex™ Stopcocks with Luer Connections

Regulate flow without any leaking using these fittings. Cole-Parmer™ Stopcocks with Luer Connections are available with either a male luer lock or a male luer slip.

EDGE
Type Stopcock
Plug Material Polycarbonate and HDPE
Material Polycarbonate,HDPE
6

Bel-Art™ Stopcocks

With a removable, leak-proof plug made of chemical-resistant, non-stick PTFE with barbed tubulations that accept 0.25 in. 0.375 in. I.D. tubing

For Use With (Equipment) Tubing
Plug Material PTFE
For Use With (Application) Tubing
Autoclavable Autoclavable
7

BRAND™ T-Bore Stopcock

T-Bore Stopcock is constructed of PTFE and includes a nozzle.

Includes Nozzle
Type T-Bore Stopcock
Material PTFE
8

Bel-Art™ SP Scienceware™ PVDF (Polyvinylidene Fluoride) Three Way Stopcocks

The three-way configuration of these stopcocks permits connection of any two or all three ports

Description 3-Way Stopcock
Temperature (Metric) 204°C max.
Plug Material Rubber or Plastic Tubing
No. per Case 1 Case
Material PVDF
No. per Pack 1
Autoclavable Autoclavable
Pressure 34.3 KPa
9

Lenz Laborglasintrumente™ Straight Needle-Valve Stopcocks

Smooth operating spindle made of PTFE with retaining device to avoid complete unscrewing

10

BRAND™ Straight-Bore PTFE Stopcocks

PTFE construction with polypropylene valve lever. Provides outstanding chemical resistance. Includes integrated hose nozzles.

Includes Integrated hose nozzle
Plug Material Polypropylene
Material PTFE
11

Bohlender™ BOLA™ GL 2-way Stopcocks EX for GL 18

Cylindrical 2-way stopcock plug and GL screw ports.

12

Bohlender™ BOLA™ GL 2-way Stopcocks EX for GL 14

Cylindrical 2-way stopcock plug and GL screw ports.

13

Lenz Laborglasintrumente 2-Way Stopcocks with Solid Glass Plug

Made of high quality materials. Each manufacturing step is tested through an extensive quality management system, based on DIN ISO 9001/EN 29001.

14

Lenz Laborglasintrumente 2-Way Stopcocks with PTFE Plug

Made of high quality materials. Each manufacturing step is tested through an extensive quality management system, based on DIN ISO 9001/EN 29001.

Material Borosilicate Glass (3.3)
15

Hirschmann™ PTFE-Stopcock with PP Tip

Component for burette assembly with burette tube and seperate PTFE stopcock with PP tip.