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Stopcocks

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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1 – 15 of 206 results
1

DWK Life Sciences Kimble™ Kontes™ FlexColumn™ Three-way Luer Stopcock

Heavy-duty nylon

EDGE
2

Kartell™ Plastilab™ Straight-Bored Stopcocks

Designed for liquids and gases under low pressure or low vacuum.

Material Polypropylene,HDPE
3

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
4

Bohlender™ BOLA™ Eco Stopcock Plugs with Bore, Taper 1:10, PTFE

Eco stopcock plugs with nut and grip made of polypropylene, and washer made of PTFE.

5

BRAND™ PTFE/ Polypropylene T-bore Stopcock

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

Includes Integrated hose nozzle
Plug Material Polypropylene
Material PTFE
6

Pyrex™ Borosilicate Glass Stopcock with Key

Manufactured from Pyrex™ borosilicate glass with PTFE key, for superior chemical resistance. Pyrex™ Borosilicate Glass Stopcock with Key are made to a taper of 1:10 giving a combination of performance and ease of operation.

Includes PTFE key, Plastic screw thread retaining device
Material Borosilicate Glass
7

Pyrex™ Straight Bore Borocilicate Glass Stopcocks

Specially designed and carefully manufactured for high vacuum applications.

Type Glass Stopcock
Material Borosilicate Glass
8

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
10

Lenz Laborglasintrumente 1-way Stopcock with PTFE Key Bore

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

11

Buerkle™ Hose Tubing Stop-Cock

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

Type Hose Tubing Stopcock
Material HDPE
Width (Metric) 7 mm
Pressure 0.3 bar
12

Huenersdorf™ LDPE Straight Spout Connectors

These straight spouts with shut-off function provide sleeve connections at both ends for connecting hoses.

Temperature (Metric) −20° to +70°C
Material LDPE
Pressure 0.4 bar
13

Bohlender™ PTFE and PP 3-Way Stopcocks with Hose Connectors

For distributing liquids and gases and the quick and easy disconnection of flow.

14

Bohlender™ BOLA™ Eco Stopcock Plugs with Bore, Taper 1:10, PP

Eco stopcock plugs with nut, grip and washer made of polypropylene.

Description Taper 1:10
Color Red
Material Polypropylene
15

Azlon™ Spare Stopcock for Narrow Neck HDPE Aspirator

For use with narrow neck HDPE aspirator

Type Aspirator Stopcock
Material HDPE