Stopcock

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Stopcock
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  • Thomas® Lubriseal Stopcock Grease

    Thomas®

    …ground glass joints, glass and metal stopcocks and valves, and for sealing desiccators, anaerobic culture jars and similar utensils Its mobility in film-like quantities makes it excellent not only for lubricating, but for preventing the freezing of stopcocks, ground joints, etc., which are…

  • Stopcock Assembly

    Thermo Scientific Nalgene

    …interface visible down to stopcock. Polypropylene funnel and screw closure are chemically inert, translucent, autoclavable and have no known solvents at room temperature. Susceptible to softening and swelling from strong oxidizers and aggressive solvents. TFE stopcock assembly has excellent…

  • Stopcock Assy 25ml

    Thermo Scientific Nalgene

    Pack of 2 Stopcock Assemblies, 25 mL

  • Replacement Stopcock Plug

    Ace Glass

    Replacement stopcock plugs with inlet feeds for rotary evaporators. Codes -08, -10 for Buchi assemblies and -20 for Heidolph 4000 series. All plugs are 19/38.

  • Adapter, Vacuum, with Stopcock

    Ace Glass

    Vacuum adapter with 2mm bore stopcock on side arm.

  • Adapter, Adjustable Flow Stopcock

    Ace Glass

    Adjustable flow stopcock with standard taper 24/40 joints.

  • Stopcock Plugs, T-Bone

    Ace Glass

    T-Bore stopcock plugs available in borosilicate or 1:5 PTFE.

  • Stopcock Plug 2

    Corning

    These are replacement glass No. 2 Standard Taper stopcock plugs with 2mm diameter bores for No. 7280 PYREX® straight bore glass stopcocks.

  • PTFE Straight Stopcock Plugs

    DWK Life Sciences (Kimble)

    PTFE stopcock plug has a 1:5 taper PTFE  is chemically-resistant and self-lubricating

  • Stopcock Plugs, Straight Bore

    Ace Glass

    Straight bore stopcock plugs, available in borosilicate or PTFE. PTFE plug Corning# 7681.

  • Adapter, Claisen, Stopcock

    Ace Glass

    Claisen adapter. Center tube has 10/30 outer top for 76mm immersion thermometer and a 24/40 inner bottom. 75 degree take-off arm with 24/40 outer top and 24/40 inner stopcock side arm. Available with glass or PTFE stopcock plug.

  • Buret No Stopcock 50ml

    DWK Life Sciences (Kimble)

    Class B straight bore buret barrel only Furnished without stopcock Lubri-Flo® stopcock barrel 50 mL

  • Adapter T-Bore, Stopcock

    Ace Glass

    With standard taper outer joint and T-Bore, 2mm stopcock.

  • Cap, with Stopcock

    Ace Glass

    For No. 7753 Storage Tubes. With 2mm bore stopcock for evacuating or introduction of inert gases. The 14/35 or 24/40 joints are used when it is necessary to evacuate completely. The 14/20 joint is used when there is more concern about grease entering the system.

  • Three-way High Vacuum Stopcock

    Ace Glass

    O-Rings available. Three-way high vacuum stopcock for use in combining materials in proportion or as common feed distributed in proportion. Easy action plugs act independently of each other and are connected to a common tubulation through a variable opening. Supplied with FETFE O-Rings. Stem O.D.…

  • Reaction Flask, Removable Stopcock

    Ace Glass

    With 4mm bore stopcock for rapid removal of contents without disturbing the general arrangement of the apparatus. Stopcock is separated from lower section by 28/15 joint. Neck opening is standard 10.2cm (4"). For joint clamp, order 7669-12. Use 6496 Cl

  • Extractor, Soxhlet, with Stopcock

    Ace Glass

    Extractor body only, with stopcock for withdrawing samples from extraction chamber. Can be used interchangeably with the standard Soxhlet extraction apparatus.

  • Extractor, Liquid-Liquid, with Stopcock

    Chemglass

    Similar in design to CG-1360 but with the addition of a 2mm PTFE stopcock in the return tube. Stopcock stops the flow after the extraction is complete. For samples of 1 liter plus approximately 200mL of extracting solvent. Extractor has a 45/50 top outer joint and a 24/40 inner joint on the uptake…

  • Polypropylene Desiccators with Stopcock

    Thermo Scientific Nalgene

    …proper performance Polypropylene stopcock with PTFE Plug can be used with 0.25″ (6.4mm) ID tubing (tubing sold separately) Vacuum connection is located on the desiccator body making the cover easier to handle Straight bore design eliminates stopcock vacuum leakage No gasket is…

  • Stopcock Plug, Inlet Feed

    Ace Glass

    Pressure gauges for monitoring pressure in several pieces of apparatus such as pressure vessels, pressure reactors & chromatography columns. Pressure ranges vary from 0-60psi and up to 0-400psi. Gauges have different NPT end fittings and internal materials, as well as various dial ranges. Some come…

  • Stopcocks

    United Scientific Supplies

    These leak-proof, economical polypropylene stopcocks have a PTFE plug and serrated ports that accept tubing from 6mm to 10mm in diameter. 

  • Burettes, PTFE Stopcock

    United Scientific Supplies

    Burettes with straight bore teflon (PTFE) stopcocks are made from the highest quality, accurate bore tubing to provide a high degree of accuracy, reliability, and durability. All graduations are in resilient white enamel. Accuracy per Class "A", ASTM E-287, Batch Certified.

  • Sparger, Easy action stopcock

    Ace Glass

    Sparger tube with Ace fritted bottom available in various porosities. Top has either 0-3 or 0-5 Easy Action Stopcock. The 90 degree side arm is available with a glass hose connection or a #7 Ace-Thred which promotes the use of our 5853-06 Ace-Safe conn

  • PTFE Stopcock Assy 2.8mm

    DWK Life Sciences (Kimble)

  • Burette-28 Assembly w/PTFE Stopcock

    LaMotte

  • PYREX Brand Stopcocks With Stopcock Plugs Of Glass

    Corning

    Plug bore x o.d. of arms appear in listings

  • SYNTHWARE Glass T-Bore Stopcock Plugs

    Kemtech America

    Replacement Stopcock Plug, T-Bore, Glass, Synthware, Multiple Bore and plug sizes available, solid glass plug.

  • Teflon Double Oblique Bore Stopcock

    DWK Life Sciences (Kimble)

    With nut, washer and O-ring Two mm bore

  • PTFE Stopcock Valve, 2 Way

    Ace Glass

    PTFE stopcock valve, 2-way, one 1/4 inch male luer port and one 1/4 inch male NPT port, 0.046 orifice. PTFE valve used with NPT fittings. Various ends available (male and female NPT, luer, 1/4" tube and 1/4"-28 UNF). IPS PTFE Stopcocks made of virgin PTFE. Compression ferrules made of virgin PTFE.…

  • Stopcock Plugs, Double Oblique Bore

    Ace Glass

    Double oblique bore stopcock plugs available in 1:5 PTFE or Borosilicate.

  • Adapter, Stopcock and syringe port

    Ace Glass

    Standard taper adapter with 8-425 gpi threaded top and a 2mm bore stopcock with a ptfe plug. Syringe port is supplied with a cap and septum.

  • Stopcock Rotaflo 6 mm Ra

    Corning

    …90° angle stopcocks can be adjusted from a 0 to 6mm bore opening and have 10mm O. D. sidearms. They are designed so that only chemically resistant Polytetrafluoroethylene (PTFE) and PYREX® borosilicate glass are in contact with liquids and gases. Rotaflo® stopcock design permits…

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