Stopcocks

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  • SYNTHWARE High Vacuum Valves, Three-Way, PTFE-Protected

    Kemtech America

    High Vacuum Valve, Three Way, PTFE Protected, Synthware, Size: 0-8mm, Side Arm OD: 9mm.

  • One-Way Stopcock Valve Female Luer to Male Luer

    DWK Life Sciences (Kimble)

  • Chem-Vac™, Chem-Cap® Valve Replacement Plugs and Control Knobs

    Chemglass

    CHEM-CAP, METERING, LOW HOLD UP, CHEM-VAC™ CHEM-CAP® metering valve has an extended tip on the plug to allow semi-needle valve control of gases and liquids. Similar to CG-965 CHEM-VAC™ valve but with the arms bent to minimize hold-up of fluids. See CG-971 for replacement…

  • Sciencware® Stopcocks

    Bel-Art - SP Scienceware

    2-way and 3-way Connections This polypropylene stopcock has a detachable, watertight and inert Teflon® PTFE plug that contacts any fluid being dispensed. The barbed fitting end accepts 6.4 to 9.5mm (1/4 to 3/8") I.D. tubing. Three-way models allow connection of two or three arms. Pressure…

  • SYNTHWARE Glass T-Bore Stopcocks

    Kemtech America

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

  • SYNTHWARE High Vacuum Valves, 180 Degree, PTFE-Protected

    Kemtech America

    High Vacuum Valve, 180 Degree, PTFE Protected, Synthware, Size: 0-4, 0-8, 0-12mm available, Side Arm OD: 9mm.

  • SYNTHWARE High Vacuum Valve Metering Plugs

    Kemtech America

    High Vacuum Valve Meteing Plug, PTFE Protected, Synthware, Size: 0-4, 08 and 0-12mm available.

  • Three-Way Stopcock Valve, 2 Female Luers to Male Luer

    DWK Life Sciences (Kimble)

    Heavy-duty nylon, 3-way control with locking fittings on all ports. 

  • Double Oblique Bore Stopcocks

    Chemglass

    A 1:5 taper PTFE stopcock with two parallel diagonal bores.

  • Stopcocks

    Chemglass

    For replacement or construction of burets having a 1:5 PTFE stopcock plug. One arm is pulled to a delivery tip.

  • T-Bore Glass Plug Pressure Stopcocks

    Chemglass

    T-BORE, Similar to CG-458, but with three stems sealed 90º apart. Solid glass plug has a "T" shaped bore so that any two or all three arms can be connected at one time. Plug is precision ground and hand-lapped with corresponding numbers on the barrel and plug. DOUBLE OBLIQUE BORE,…

  • 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.

  • SYNTHWARE High Vacuum Valves, 180 Degree

    Kemtech America

    High Vacuum Valve, 180 Degree, Synthware, Size: 0-4 or 0-8mm available, Side Arm OD: 9mm.

  • Valve High Vac PTFE Sz 4

    DWK Life Sciences (Kimble)

    This straight high-vacuum valve is for use in vacuum applications up to 5 x 10-7 Torr. Designed with a precision external thread for fine control Can be used as a bleed up to 1/2 turn Full open position is at 1-1/2 turns Primary seal is made with a FKM o-ring on a tapered seat …

  • 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, Three-Way, T-Bore

    Ace Glass

    3-way stopcock with T-bored solid glass plug. See Ace 8228 family for replacement plugs.

  • Nalgene Polypropylene Straight Bore Stopcocks

    Thermo Scientific Nalgene

    Polypropylene with Teflon® TFE plug No lubrication required Offered in 2 mm and 4 mm bore sizes Arms are five-mm bore, serrated to take 1/4 to 7/16 inch rubber tubing

  • Balloon Adapters

    Wilmad-LabGlass - SP Scienceware

    These Air-Tite borosilicate glass adapters are designed with a T-bore stopcock for addition or venting inert atmospheres by attaching a balloon to one of two stems. Choose from different sized Standard Taper joints and plug type. IG-22 has a 4mm glass stopcock while IG-23T has a 4mm PTFE plug.

  • Double Vacuum/Gas Manifolds With PTFE Valves

    DWK Life Sciences (Kimble)

    For connecting inert gas and vacuum sources Grease-free, fine control is provided by 4 mm PTFE HI-VAC® valves. Sample contacts only PTFE and borosilicate glass. Beams are 1/2” (12.7 mm) O.D. with upper left and lower right ends open. Delivery ports are 9 mm O.D and the distance…

  • SYNTHWARE Glass High Vacuum Straight Bore Stopcocks

    Kemtech America

    Stopcock, High Vacuum, Straight Bore, Synthware, Bore: 2, 4 and 6mm available, Plug Size: 12/30, 17/40, and 20/44 available, Stem OD: 8mm, plug is precision ground and hand lapped with corresponding numbers on barrel and plug.

  • Stopcock, Three-Way, 1:5 PTFE Plug

    Ace Glass

    Oblique bore with polished barrels. For plug only, see 8226.

  • Teflon Double Oblique Bore Stopcock

    DWK Life Sciences (Kimble)

    With nut, washer and O-ring Two mm bore

  • Adapter, Distillation, Pilot Plant

    Ace Glass

    Distillation adapter for use with Pilot Plant reactors. Simple design collects the distillate above a PTFE stopcock with swagelok compatible take-off. Available with either one or two upper joints.

  • PTFE Straight Stopcock Plugs

    DWK Life Sciences (Kimble)

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

  • PYREX® Brand Stoppers

    Corning

    Full length stoppers, closed at bottom, with penny head Conform to ASTM Standard E 675

  • Stopcock adapter, top outer joint, bottom inner joint, PTFE plug

    Ace Glass

    Stopcock adapter, top outer joint, bottom inner joint, PTFE plug. Spherical joint versions are both outer joints top and bottom.

  • SYNTHWARE PTFE Stopcock Plugs, Metering Valve

    Kemtech America

    Stopcock Plug, Metering, PTFE, Synthware, Bore: 2 or 4mm available, Plug Size: 11/25 or 15.2/30 availabe, with threaded PTFE needle valve for the fine control of flow through the bore of the stopcock plug.

  • Stopcock, High Vacuum, Easy Action Plug

    Ace Glass

    High vacuum straight thru stopcock available with several types of Easy Action plugs including bakeable PTFE, PTFE stem with glass filled PTFE threads, and glass with Nylon handle, for allowing smooth adjustment. A variety of replacement items are avai

  • One-Or-Two Place Air: Gas: Vacuum Stopcocks

    Water Saver Faucet Co.

    Pedestal-style single or double cock for mounting on top or on splash shield of bench Maximum recommended line pressure 69 kPa (10 psig) Chrome-plated brass Spring-loaded stopcocks take included snap-in buttons labeled GAS, AIR or VACUUM (specify when ordering) Serrated outlets are 48 mm long,…

  • SYNTHWARE PTFE Stopcocks, Straight Bore

    Kemtech America

    Stopcock, Straight Bore, PTFE, Synthware, Bore: 2, 4, and 6mm available, Plug Size: 11/25, 15.2/30, and 16/35 available, Stem OD: 8, 10, and 12mm available, with 1:5 PTFE plug and a threaded pressure nut.

  • Stopcock, Three-Way, Oblique Bore

    Ace Glass

    With solid plug. For plug only, see 8226.

  • Stainless Steel Spigot

    Bürkle

    Very sturdy and robust spigot made of stainless steel AISI 304 (1.4301). The outlet of the spigot turns 360° so it can be adjusted to any required position. With a practical suspension device for filling container and eyelet for shutting off the spigot. Seals PTFE, FKM Self-closing …

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