Stopcocks

Compare Tool

Select up to 3 products

1 - 32 of 176
Sort
View
Show
  • Centrifuge Tubes

    Chemglass

    TUBES, CENTRIFUGE, 50ML, Centrifuge tube with a short, conical bottom and 24-415 GPI threaded top. Fits I.E.C. shield number 320. Supplied complete with a Poly-Seal® polypropylene lined phenolic screw cap. TEST TUBE TONGS, Tongs are made of zinc coated steel, 6" overall length. Spring…

  • 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. 

  • PTFE Metering Plug Straight Bore Stopcocks

    Chemglass

    A 1:5 taper PTFE plug having a threaded needle valve to allow the adjustment of flow through the bore of the plug.

  • 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.…

  • Organic Chemistry Labset Kit

    Chemglass

    ORGANIC CHEMISTRY LABSET KITS, 19/22, Chemglass organic chemistry kits contain the basic glassware required to perform basic experiments such as vacuum or atmospheric distillation, reflux or reflux with addition, extraction as well as other organic experiments. Each kit contains the 14 glass items…

  • 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 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.

  • Glass Plug Straight Bore Stopcocks

    Chemglass

    The 2mm through 6mm bore sizes are supplied complete with the listed size metal retaining clip CG-423. The 8mm and 10mm bore sizes are supplied with a #29 and #34 CG-145 Keck clip respectively.

  • 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 …

  • General Purpose Threaded Stopcock

    Chemglass

    Similar to CG-595, but with the arms bent to minimize hold-up.

  • PTFE Straight Stopcock Plugs

    DWK Life Sciences (Kimble)

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

  • 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.

  • Metal Retaining Clips for Glass Stopcock Plugs

    Chemglass

    Metal retaining clip is designed to apply pressure against the stopcock plug and barrel. Clips eliminate blow-out and loose fit while minimizing freezing. They are made from high carbon tempered spring steel having a green corrosive resistant, phosphate base finish.

  • SYNTHWARE PTFE Stopcock Plugs, Straight Bore

    Kemtech America

    Stopcock Plug, Straight Bore, PTFE, Synthware, Bore: 2, 4, and 6mm available, Plug Size: 11/25, 15.2/30 and 16/35 available, supplied with PTFE plug, one PTFE washer and one o-ring.

  • PYREX® Plain Bore Rotaflo® Three-Way Stopcock

    Corning

    These high performance Rotaflo® three-way 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®…

  • Pressure Relief Valve Complete

    Chemglass

    Automatic, adjustable pressure relief valve is for use on apparatus where internal pressure build-up is a concern. Tension on the stainless steel spring is adjusted by turning the top control knob in or out and will relive pressures from 5 to 50 PSI. Two-piece stem is made of PTFE and is fitted…

  • Chem-Vac™ Glass Portion Only Valves

    Chemglass

    CHEM-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.

  • 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

  • Stopcock Plug, Inlet Feed

    Ace Glass

    Pressure gauges for monitoring pressure in several pieces of apparatus such as pressure vessels, pressure reactors & chromatography columns. Pressure ranges vary from 0-60psi and up to 0-400psi. Gauges have different NPT end fittings and internal materials, as well as various dial ranges. Some come…

  • 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.

  • HI-VAC® Straight Valves with Tip O-Rings and CTFE Plug

    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 …

  • 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…

  • 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.

  • Double Oblique Bore Stopcocks

    Chemglass

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

  • 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.

  • High Vacuum Straight Bore Stopcocks

    Chemglass

    Solid 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…

  • 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 …

  • 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.

  • 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.

  • SYNTHWARE Glass High Vacuum Oblique Stopcocks

    Kemtech America

    Stopcock, High Vacuum, Oblique, Synthware, Bore: 4 and 8mm, Plug Size: 17.35/50 or 25/65 available, Stem OD: 10 or 16mm, with hollow plug, Precision ground with corresponding numbers on the barrel and the plug.

  • 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.

  • Replacement Parts for LG-10282 & LG-10283

    Wilmad-LabGlass - SP Scienceware

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

Compare Tool

Select up to 3 products

Please Log In

Don't have an Account? Create one now.