Stopcocks

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  • Balloon Adapters

    Wilmad LabGlass

    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.

  • Teflon Straight Bore Stopcocks

    DWK Life Sciences (Kimble)

    Complete with nut, O-ring, washer For replacement in glassware originally supplied with Teflon straight bore plugs

  • Sciencware® Stopcocks

    Bel-Art Products

    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…

  • Three-Way Polypropylene Stopcocks with Teflon Plug

    Thermo Scientific Nalgene

    Similar to 8652N30 series, but with three arms Stopcock has T-shaped bore for connecting any two or all three arms Offered in 2 mm and 4 mm bore sizes Arms serrated to take 1/4 to 3/8 inch tubing

  • One-Way Stopcock Valve Female Luer to Male Luer

    DWK Life Sciences (Kimble)

  • 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,…

  • Straight Bore Stopcocks with Glass Plug

    Wilmad LabGlass

    These borosilicate glass straight bore stopcocks with straight sidearms include stopcock plugs and barrels that are ground to interchangeable Standard Taper specifications. Plugs (also sold separately) are solid and have a 1:10 taper.

  • SYNTHWARE Glass Straight Bore Stopcock Plugs

    Kemtech America

    Stopcock Plug, Glass, Straight Bore, Synthware, Multiple Bore and plug sizes available.

  • SYNTHWARE Glass High Vacuum Stopcocks, Offset

    Kemtech America

    Stopcock, High Vacuum, Offset, Synthware, Multiple bore and plug sizes available, Stem OD: 8, 10 or 12mm available, with hollow glass plug, Precision ground with corresponding numbers on the barrel and the plug.

  • Needle Valves, V-Point

    Scott Specialty

    With forged brass body, sharp stainless steel needle and small opening at the seat for accurate control of small flow of gases at inlet pressures up to 3000 psig at 70°F (20.7 MPa at 21.1°C) Maximum temperature rating: 450°F (232°C) Useful also for water, compressed air…

  • 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.

  • Rotameter, Needle Valve, Compact, Ace-Thred

    Ace Glass

    Used to regulate and measure flows, all working parts and indicia are visible, meter readings are unobstructed; the outlet swivels 360 degrees. Pressure tight to 2Kg/cm2 or more (air). Flow rates from 5 to 50L/minute air or 0.1 to 500cc/min water. Each tube is furnished with either a 316 stainless…

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

    Ace Glass

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

  • Replacement Parts for LG-10282 & LG-10283

    Wilmad LabGlass

    These replacement parts are for use with high vacuum, PTFE stopcocks (LG-10282 and LG-10283).

  • Leash

    Plasticoid

    For securing stoppers to neck of vessel or stopcock plugs to shell Rubber strip, 100 mm long x 5 mm wide, has hole 10 mm diameter at each end, expandable to 28 mm

  • PYREX® Brand Stoppers

    Corning

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

  • 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.

  • PTFE Straight Stopcock Plugs

    DWK Life Sciences (Kimble)

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

  • Valve High Vac PTFE Sz 12

    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 …

  • Stopcock, High Vacuum, Solid Plug

    Ace Glass

    Three-way high vacuum oblique bore stopcock with liquid seal. The solid plug is bored to permit evacuation of the lower chamber and prevents leakage through the bottom.

  • PYREX® Straight Bore Stopcocks

    Corning

    Plug has 1:5 taper, permitting precise control of plug tension Lubrication not required Knurled nut and washer are Teflon O-ring is Buna N synthetic rubber Plug bore x o.d. of arms appear in listings

  • 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.…

  • Straight connecting adapter, 4mm glass plug stopcock, 15mm O-Ring top joint

    Ace Glass

    Straight connecting adapter, 4mm glass plug stopcock, 15mm O-Ring top joint and either a spherical joint or an inner standard taper joint on the bottom.

  • Replacement Components For 1:5 Taper PTFE Plugs

    Chemglass

    Replacement components for 1:5 taper PTFE plugs. O-rings are Viton, nuts are green, and washers are white.

  • Stopcock, High Vacuum, Oblique Hollow Plug

    Ace Glass

    High vacuum stopcock, precision grade, with oblique bore hollow plug.

  • Teflon Double Oblique Bore Stopcock

    DWK Life Sciences (Kimble)

    With nut, washer and O-ring Two mm bore

  • Stopcock, Polyethylene Miniature

    Dynalon

    Miniature Stopcocks. The low friction properties of high density polyethylene allows for easy turning of key which requires no lubricant, thus eliminating blockage of the bores with grease.

  • 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 …

  • Stopcock, 2 mm

    DWK Life Sciences (Kimble)

    As supplied with 1983J70 and J76 Kimble Economy Burets Plug bore two mm Also for replacement on Kimble 17800 and 17810 series Chromatography Columns and Kimble 29050-H and 29060-H series Separatory Funnels.

  • HiVac Valve with Straight PTFE Plug

    Wilmad LabGlass

    These high vacuum valves have a barrel with two side arms attached at a 180° angle to each other and on the same plane. The borosilicate glass valve body features a precision-formed tapered valve seat and a precision tooled external thread. The design of cap (made of Delrin®) and valve stem…

  • SYNTHWARE High Vacuum Valves, T-Type

    Kemtech America

    High Vacuum Valve, T-Type, Synthware, Size: 0-12mm, Side Arm OD: 9mm.

  • Stopcock, 4 mm, w/o Plug

    DWK Life Sciences (Kimble)

    Without Teflon plug Offered in 4 mm bore size; see 8682B34 for stopcock

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