Lab Glass Stopcocks
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SYNTHWARE PTFE Stopcock Plugs, Metering Valve
Kemtech AmericaStopcock 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.
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High Vacuum T-Bore Stopcocks
ChemglassSolid glass high vacuum stopcock with the NEW Chemglass improved constant pressure retention device. This unique retaining system incorporates a glass plug having an extended snelling which accepts a stainless steel spring and clip. The spring keeps constant tension on the plug at all…
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SYNTHWARE Glass High Vacuum Stopcocks, T-Type
Kemtech AmericaStopcock, High Vacuum, T-Type, Synthware, Bore: 2 or 4mm available, Plug Size: 12.6/40 or 17.35/50 available, Stem OD: 8 or 10mm available, with hollow glass plug, Precision ground with corresponding numbers on the barrel and plug.
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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.
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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.
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High Vacuum Straight Bore Stopcocks
ChemglassSolid glass high vacuum stopcock with the NEW Chemglass improved constant pressure retention device. This unique retaining system incorporates a glass plug having an extended snelling which accepts a stainless steel spring and clip. The spring keeps constant tension on the plug at all…
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These high performance Rotaflo® 90° angle stopcocks can be adjusted from a 0 to 10mm bore opening and have 13mm O. D. sidearms. They are designed so that only chemically resistant Polytetrafluoroethylene (PTFE) and PYREX® borosilicate glass are in contact with liquids and gases. The Rotaflo®…
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T-BORE, CAPILLARY ARMS, Similar to CG-436, but with all three arms being made of 2mm ID capillary tubing. 120°, A 1:5 taper PTFE stopcock with three sidearms sealed 120º apart. Plug has a bore to allow connection of any two arms at once.
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Sciencware® Stopcocks
SP Bel-Art2-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…
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Nalgene Polypropylene Straight Bore Stopcocks
Thermo Scientific NalgenePolypropylene 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
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Stopcock adapter, top outer joint, bottom inner joint, Easy Action plug
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SYNTHWARE Glass Straight Bore Stopcock Plugs
Kemtech AmericaStopcock Plug, Glass, Straight Bore, Synthware, Multiple Bore and plug sizes available.
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PTFE Valves
ChemglassVALVES, IN-LINE, PTFE TIP, Hi-vac valve with bent arms to minimize hold up of fluids that would occur in conventional valves. Designed with a precision external thread for fine control. VALVES, 3-WAY, PTFE TIP, Hi-vac valve with three way configuration for use in construction of manifolds,…
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SYNTHWARE High Vacuum Valve Plugs
Kemtech AmericaHigh Vacuum Valve Plug, PTFE Protected, Synthware, Size: 0-4, 0-8 or 0-12mm available, Plug has a machined in PTFE tip O-ring to make the primary seal.
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Chem-Vac™ Glass Portion Only Valves
ChemglassCHEM-VAC™ valve glass portion only. Valve has a single sidearm sealed at a 90º angle to the barrel. Heavy duty rounded coarse thread and precision formed tapered seat. Dimensions as listed. PLEASE NOTE: THE 0-20mm BORE SIZE IS OUR PREVIOUS STYLE CG-500 SERIES VALVE WITH COARSE THREAD.
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S-Type Exposed O-ring Tip Valves
ChemglassHi-vac valve with two sidearms sealed to the barrel at a 180° angle to one another and on the same plane.
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Adapter, Distillation, Pilot Plant
Ace GlassDistillation 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.
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PTFE Tip Valves
ChemglassPTFE TIPHi-vac valve with two sidearms sealed to the barrel at a 90° angle to one another. Designed with a precision external thread for fine control.
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T-Bore Glass Plug Pressure Stopcocks
ChemglassT-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,…
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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
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High vacuum stopcock that eliminates exposure to corrosive materials. Use to at least 13.6 Kg internal pressure. Variable openings from 0-3mm to 0-10mm. Ultimate vacuum of 10-7 can be realized with standard three seals. Smooth acting valve permits fine
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SYNTHWARE PTFE T-Bore Stopcocks
Kemtech AmericaStopcock, T-bore, PTFE, Synthware, Bore: 2 or 4mm available, Plug Size: 15.2/30 or 16/35 available, Stem OD: 8 or 10mm available, Stems are sealed 90 degrees apart, PTFE plug has a "T" shaped bore to connect any two or all three stems.
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High Vacuum 90° 4mm Stopcock
ChemglassSimilar to CG-476, but with the sidearms sealed at a 90º angle to each other. Precision ground and hand-lapped with corresponding numbers on barrel and plug.
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Straight Bore 1-Arm Capillary Stopcocks
Chemglass1-ARM CAPILLARY Similar to CG-424, but with one arm being made of 2mm ID capillary tubing. CAPILLARY ARMS Similar to CG-424, but with both arms being made of 2mm ID capillary tubing.
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Adapter, Stopcock and syringe port
Ace GlassStandard 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.
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SYNTHWARE PTFE Double Oblique Bore Stopcock Plugs
Kemtech AmericaStopcock Plug, Double Oblique, PTFE, Synthware, Bore: 2 or 4mm available, Plug Size: 12.9/44 or 14.4/44 available.
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Chem-Vac™ Glass Portion Only 180° Valves
ChemglassCHEM-VAC™ valve glass portion only. Valve has two sidearms sealed to the barrel at a 180º angle to one another and on the same plane. Heavy duty rounded coarse thread and precision formed tapered seat.
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Three-way High Vacuum Stopcock
Ace GlassO-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.…
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SYNTHWARE Sublimation Apparatus
Kemtech AmericaSublimation Apparatus, Synthware, Capacity: 100 or 150mL available, Flange Size: 57 or 80mm available, supplied complete with condenser, flask, O-ring and horseshoe clamp.
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Solid glass plug has a threaded glass snelling which accepts an assembly similar to the one supplied with standard PTFE stopcocks. This consists of a PTFE washer, PTFE nut and Viton O-ring. Assembly provides for uniform seating tension to be applied to the plug which is precision ground and…