Stopcocks

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Stopcocks

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  • 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 Stopcock Valve, 2 Female Luers to Male Luer

    Kimble

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

  • Teflon Straight Bore Stopcocks

    Kimble

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

  • One-Way Stopcock Valve Female Luer to Male Luer

    Kimble

  • 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.

  • PYREX Brand Stopcocks With Stopcock Plugs Of Glass

    Corning

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

  • 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.

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

    Ace Glass

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

  • 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

  • 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

  • Scienceware® Stopcocks

    Bel-Art Products

    2-Piece design requires no lubrication A quarter turn shuts off flow. Maximum pressure rating: 48 KPa (7 psi), 50cm of water. Easy, snap-together assembly creates a tight seal Select a size betweento fit tubing of 3/8 or ½" (9.5 or 12.7mm) I.D. Barbed connections

  • 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

  • Stopcock, High Volume, Easy Action Plug, 90 degrees

    Ace Glass

    High vacuum stopcock with arms at 90 degree with variable openings from 0-3mm to 0-15mm. An ultimate vacuum of 10-7 can be realized with the standard three O-Rings. Smooth acting semi-needle valve permits fine adjustment of opening. Plugs available in

  • 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…

  • 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

  • Teflon Double Oblique Bore Stopcock

    Kimble

    With nut, washer and O-ring Two mm bore

  • 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.

  • PYREX® Replacement Retainer Clips for 1 or 2mm Straight 3mm Bore Stopcocks

    Corning

    These are replacement retaining clips for PYREX® straight bore glass stopcocks that have either a 1mm or 2mm diameter bore.

  • 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.…

  • Stopcock, 2 mm

    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.

  • 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

    Kemtech America

    High Vacuum Valve, Three Way, Synthware, Size: 0-8 or 0-12mm available, Side Arm OD: 9mm.

  • Flickit Valve, Riley

    Ace Glass

    Quick-open, valve-type stopcock with glass barrel, PTFE plug, and FETFE O-rings. Unique design allows introduction of particulates or capsules into a system using a rod or plunger. Barrel is angled with respect to the side arms, plug has corresponding

  • Stopcock, High Vacuum, Hollow Plug

    Ace Glass

    High vacuum stopcock with hollow plug, for horizontal connections.

  • Stopcock, High Vacuum

    Ace Glass

    Precision grade, straight thru, high vacuum stopcock. Available with a hollow or solid plug.

  • Polypropylene Stopcock with PTFE Plug

    Bel-Art Products

    Stopcock to control airflow in a vacuum desiccator, for use with Bel-Art Scienceware desiccator models F42025, F42020, F42010, F42012, F42022 and F42027 Body constructed of polypropylene for strength, thermal performance, and solvent resistance, and plug and washer of polytetrafluoroethylene…

  • 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…

  • Stopcock, Vacuum, PTFE

    Ace Glass

    Threaded vacuum stopcock comes with PTFE plug with hooded, bakeble handle. Needle valve version permits smooth valve adjustment down to 0.1 cc/min flow rate. Easy action version threads into heavy wall glass barrel also permitting smooth adjustment. Do

  • Stopcock, Straight Bore, Glass Plug

    Ace Glass

    A ruggedly constructed stopcock with solid glass plug and tapered flange which insures maximum strength at the seal. Bore of side arms is equal to or slightly larger than bores of plug on all sizes. For plugs, see 8223.

  • 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

  • Valve High Vac PTFE Sz 4

    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 …

  • PYREX Brand Three-Way Stopcocks

    Corning

    Side arms at 90° to third arm With Standard Taper stopcock plug with T-shaped bore Plug bore, o.d. of arms appear in listings

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