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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:
301 – 315 of 472 results
301

World Precision Instrument 1-Way Stopcock - Luer Lock, Polyacetal & Polycarbonate
SDP

  • 1-Way Stopcock, Polyacetal & Polycarbonate
  • Female Luer Lock-Swivel Male Luer Lock
  • Package of 10

ENCOMPASS
302

Qosina Corp 3-WAY STOPCOCK. 3 FEMALE LUER

NC3353142 3-WAY STOPCOCK. 3 FEMALE LUER

ENCOMPASS
303

Andwin Scientific BOLA MINIATURE 3-WAY STOPCOCK
SDP

NC3729798 BOLA MINIATURE 3-WAY STOPCOCK

ENCOMPASS_PREFERRED
304

Qosina Corp STOPCOCK LUER ML/FML ONE WAY

NC3760726 STOPCOCK LUER ML/FML ONE WAY

ENCOMPASS
305

Qosina Corp QOSINA CORP

NC3895758 1-WAY STOPCOCK F/M LUER LOCK

ENCOMPASS_PREFERRED
306

Qosina Corp QOSINA CORP

NC3929906 3WAY STOPCOCK 2F 1M SPINLOCK

ENCOMPASS_PREFERRED
307

INSOURCE INC

NC3931795 3 WAY STOPCOCK W EXT I.V. 50CS

ENCOMPASS
308

Nordson Medical NORDSON MEDICAL
SDP

NC3932663 STOPCOCK 1-WAY/MOQ 1000

ENCOMPASS
309

Cole-Parmer COLE PARMER 3P

NC3944901 DIS 1-WAY STOPCOCK 100/PK

ENCOMPASS_PREFERRED
310

Medex Supply 3-Way Stopcock, Rotating Male Luer Lock, Gamma/ETO, PVC Free, Phthalate Free, No DEHP, 50/cs (US Only)
SDP

3-Way Stopcock, Rotating Male Luer Lock, Gamma/ETO, PVC Free, Phthalate Free, No DEHP, 50/cs (US Only)

ENCOMPASS_PREFERRED
311

Sigma Aldrich Fine Chemicals Biosciences 3-way stopcock female Luer1EA

The spring clip design holdsthe key in position under proper sealing pressure for optimum performance. There is no need for a screwdriver in cleaning operations.Made from nickel plated brass or stainless steelTested to 45 psi water pressureHigh pressure stopcocks are rated to 290 psi

ENCOMPASS
312

Chemglass Life Sciences Stopcock Only, Desiccator, Polycarbonate
SDP

Replacement part for CG1226 series desiccators. The supplied polypropylene stopcock has a PTFE plug which turns easily, allowing a slow, gentle entrance of air to prevent unnecessary turbulence and crucible damage. Stopcock port accepts 1/4¿ I.D. tubing.

ENCOMPASS_PREFERRED
313

Ace Glass, Inc. 0-4mm high vacuum Easy Action stopcock
SDP

0-4mm high vacuum Easy Action stopcock with Tef-Cap O-ring seals eliminate exposure to corrosive materials. For use to at least 13.6 Kg internal pressure. An ultimate vacuum of 10-7 can be realized with the standard three seals. Smooth acting valve permits fine adjustment of the opening. Front ring seal makes a positive closure against a precision-formed heavy glass seal. NOT bakeable. O-Rings are NOT replaceable. Reference marks on the stopcock body aid in repetitive setting. Replacement plugs with O-Rings sold separately.

ENCOMPASS_PREFERRED
314

Ace Glass, Inc. Stopcock, 3-way, 4mm bore, 17/40 T-bore plug, 10mm OD, sidearms
SDP

4mm bore 3-way stopcock with sidearms and a 17/40 T-bore solid glass plug. 10mm O.D.

ENCOMPASS_PREFERRED
315

Chemglass Life Sciences 2mm Bore, 12/30 Plug Size, 8mm OD Sidearm, #1 Clip Size
SDP

2mm Bore, 12/30 Plug Size, 8mm OD Sidearm, #1 Clip Size. Straight bore glass Stopcocks are supplied complete with the listed size metal retaining clip CG-423.

ENCOMPASS_PREFERRED