Lab Glass Stopcocks
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Three-Way Polypropylene Stopcocks with Teflon Plug
Thermo Scientific NalgeneSimilar 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
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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…
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General Purpose Threaded Stopcock
ChemglassSimilar to CG-595, but with the arms bent to minimize hold-up.
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PTFE Straight Stopcock Plugs
DWK Life Sciences (Kimble)PTFE stopcock plug has a 1:5 taper PTFE is chemically-resistant and self-lubricating
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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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SYNTHWARE PTFE Double Oblique Bore Stopcocks
Kemtech AmericaStopcock, Double Oblique, PTFE, Synthware, Bore: 2 or 4mm available, Plug Size: 12.9/44 or 14.4/44 available, Stem OD: 8 or 10mm available.
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Balloon Adapters
SP Wilmad-LabGlassThese 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.
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Exposed O-ring Tip Valves
ChemglassVALVES, IN-LINE, EXPOSED O-RING 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, EXPOSED O-RING TIP, Hi-vac valve with three way configuration for use in construction…
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Stopcock adapter, top and bottom o-ring joints, Easy Action plug,/p>
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Adapter, Septum Inlet, with Stopcock
Ace GlassAir-sensitive sample handling adapter features either a glass or PTFE t-bore stopcock, standard taper joint and septum port arms. Supplied with two septa, Ace 9096 family.
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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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KIMBLE® HI-VAC® Straight Valve with PTFE Plug, without Tip O-Ring, Bore Range 0…
DWK Life Sciences (Duran)The straight high-vacuum valve without tip O-ring is for use in vacuum applications up to 5×10-7torr. Designed with a precision external thread for fine control Valve can be used as a bleed up to ¹/2 turn Full open is at…
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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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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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Stopcock, High Pressure, Straight Bore
Ace GlassHigh pressure straight bore stopcock with solid plug.
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Teflon Double Oblique Bore Stopcock
DWK Life Sciences (Kimble)With nut, washer and O-ring Two mm bore
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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…
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CHEM-VAC™ valve glass portion only. Valve has two sidearms sealed to the barrel at a 180º angle to one another and bent to minimize hold up of fluids. Heavy duty rounded coarse thread and precision formed tapered seat.
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Valve High Vac PTFE Sz 8
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 …
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Straight Bore Glass Plug Stopcocks
ChemglassSTOPCOCKS, STRAIGHT BORE, GLASS PLUGS, CAPILLARY ARMS, Similar to CG-400, but with the sidearms being made of capillary tubing having the same bore as the plug. Supplied complete with metal retaining clip CG-423. STOPCOCKS, STRAIGHT BORE, SCHLENK, GLASS PLUGS, This stopcock is especially…
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Replacement one-piece stem and control knob for our NEW 0-14mm drain valve. Available with either a red indicator band used for high temperature applications up to 230°C, or with a blue indicator band used for low temperature applications down to -60°C. The high temperature plug…
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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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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,…
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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…
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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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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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PYREX® Brand Stoppers
CorningFull length stoppers, closed at bottom, with penny head Conform to ASTM Standard E 675
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Stopcock adapter, inner joint bottom, #7 top, stopcock side arm with PTFE plug and hose connection end. Supplied bushing and FETFE o-ring allows compression seal with thermometers, bleed tubes, etc. Will accomodate thermometers or tubes up to 7mm OD. F
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These high performance Rotaflo® 90° angle stopcocks can be adjusted from a 0 to 3mm bore opening and have 8mm 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®…