Lab Glass Stopcocks
-
SYNTHWARE Glass High Vacuum Straight Bore Stopcocks
Kemtech AmericaStopcock, 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.
-
Needle Valves, V-Point
Scott SpecialtyWith 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 Glass T-Bore Stopcocks
Kemtech AmericaStopcock, T-Bore, Glass, Synthware, Multiple Bore and plug sizes available, with solid glass plug.
-
Similar to CG-446, but with the top oblique stem being made of 2mm ID capillary tubing.
-
Four Way PTFE Plug Stopcocks
ChemglassA 1:5 taper PTFE plug having double "V", 90º bores to connect opposite sets of adjacent arms. Configuration of stopcock allows it to be used in a system to obtain reversal of flow.
-
-
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.
-
-
-
PTFE Stopcock Valve, 2 Way
Ace GlassPTFE 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.…
-
Straight Bore 1-Arm Larger Stopcocks
ChemglassSimilar to CG-424 but with one arm of the stopcock being of a larger diameter. Larger arm facilitates construction of stronger apparatus such as separatory funnels and burets. Available complete with 1:5 taper PTFE plug or glass shell only. FOR REPLACEMENT PLUGS, SEE CG-424 LISTING
-
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.
-
Stopcocks
ChemglassFor replacement or construction of burets having a 1:5 PTFE stopcock plug. One arm is pulled to a delivery tip.
-
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.
-
SYNTHWARE High Vacuum Valve Plugs
Kemtech AmericaHigh Vacuum Valve Plug, Synthware, Size: 0-4, 0-8, and 0-12mm available, Stem Material: PTFE,O-rings Material: Viton.
-
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…
-
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…
-
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,…
-
Stopcock Plugs, Double Oblique Bore
Ace GlassDouble oblique bore stopcock plugs available in 1:5 PTFE or Borosilicate.
-
Centrifuge Tubes
ChemglassTUBES, 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…
-
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…
-
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.
-
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®…
-
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…
-
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…
-
Chem-Vac™ Hi-Vac Valves
ChemglassCHEM-VAC™ valve has single sidearm sealed at a 90º angle to the barrel. This inexpensive configuration allows for the lower portion of the barrel to be sealed directly to the apparatus being constructed, making for more compact, stronger assemblies. Valve has a TFE plug with three…
-
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.
-
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.
-
Pressure Relief Valve Complete
ChemglassAutomatic, 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…
-
Teflon Double Oblique Bore Stopcock
DWK Life Sciences (Kimble)With nut, washer and O-ring Two mm bore
-
SYNTHWARE PTFE Stopcocks, Straight Bore
Kemtech AmericaStopcock, Straight Bore, PTFE, Synthware, Bore: 2, 4, and 6mm available, Plug Size: 11/25, 15.2/30, and 16/35 available, Stem OD: 8, 10, and 12mm available, with 1:5 PTFE plug and a threaded pressure nut.
-
For lubricating ground glass joints, glass stopcocks and valves, Tensette Pipets, and for sealing desiccators. Lubricant has low vapor pressure and resists attack by acidic and alkaline solutions. Hach products are intended for sale/shipment within the US only. International customers…