Stopcocks
Ace Glass, Inc. Stopcock, 0-10mm, 90° arms, high vacuum, glass plug with knurled nylon handle
Stopcock, 0-10mm, 90° arms, high vacuum, glass plug with knurled nylon handle
Ace Glass, Inc. 0-3mm high vacuum Easy Action stopcock with Tef-Cap O-rin
0-3mm high vacuum Easy Action stopcock with Tef-Cap O-ring seals eliminate exposure to corrosive materials. For use to at least 13.6 Kg internal pressure. An ultimate vacuum of 10-7 can be realized with the standard three seals. Smooth acting valve permits fine adjustment of the opening. Front ring seal makes a positive closure against a precision-formed heavy glass seal. NOT bakeable. O-rings are NOT replaceable. Reference marks on the stopcock body aid in repetitive setting. Replacement plugs with O-rings sold separately.
Chemglass Life Sciences Stopcock, Straight Bore, Glass Plug, 6mm Bore, 20/44 Plug Size, 12mm OD Sidearms, #5 Clip Size
Stopcock, Straight Bore, Glass Plug, 6mm Bore, 20/44 Plug Size, 12mm OD Sidearms, #5 Clip Size. The 6mm bore sizes are supplied complete with the listed size metal retaining clip CG-423.
Ace Glass, Inc. 4MM STOPCOCK (GB)
4mm Newman type stopcock is used with a distilling head to enable the operator to determine reflux ratios and take-offs. Process is described in Industrial and Engineering Chemistry, Volume 14, No. 11, Page 902, Nov. 15, 1942.
Chemglass Life Sciences Stopcock, Straight Bore, Glass Shell only for PTFE Plug, 1mm, 1.5mm & 2mm Bore, 11/25 Barrel Size, 8mm OD Sidearms
Stopcock, Straight Bore, Glass Shell only for PTFE Plug, 1mm, 1.5mm & 2mm Bore, 11/25 Barrel Size, 8mm OD Sidearms. Glass portion only of CG-424 stopcock. Accepts 1:5 taper PTFE plugs.
Chemglass Life Sciences Valve, Chem-Vac, Hi-Vac, 1-Arm, 0-8mm Bore, Viton O-Ring
Valve, Chem-Vac, Hi-Vac, 1-Arm, 0-8mm Bore, Viton O-Ring. CHEM-VAC valve has single sidearm sealed at a 90¿ 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 o-rings, the tip o-ring making the primary seal on the precision formed tapered seat. O-rings on the non-rotating shaft form an excellent dynamic seal between the TFE plug and glass barrel. See CG-935 for replacement plug, CG-537 for o-ring replacement kit, and CG-902 for glass portion only.PLEASE NOTE: THE 0-20mm BORE SIZE VALVE IS OUR PREVIOUS STYLE CG-500 SERIES VALVE WITH COARSE THREAD.
Chemglass Life Sciences Stopcock, Double Oblique Bore, 1-Arm Capillary, PTFE Plug, 2mm Bore, 12.9/44 Plug Size, 7mm & 8mm OD Sidearms
Stopcock, Double Oblique Bore, 1-Arm Capillary, PTFE Plug, 2mm Bore, 12.9/44 Plug Size, 7mm & 8mm OD Sidearms. Similar to CG-446, but with the top oblique stem being made of 2mm ID capillary tubing.
Ace Glass, Inc. Stopcock, 3-way, 4mm bore, 20/44 T-bore plug, 10mm OD, sidearms
4mm bore 3-way stopcock with sidearms and a 20/44 T-bore solid glass plug. 10mm O.D.
Ace Glass, Inc. Vacuum take-off adapter, 24/40, 2mm double oblique bore, hose barbs for 5/16 or 3/8in ID tubing
24/40 vacuum take-off adapter with 2mm double oblique bore, and hose barbs for 5/16 or 3/8 I.D. tubing. Used with 2000mL reaction kettle with sublimation apparatus accessories.
Chemglass Life Sciences Valve, Chem-Vac, Hi-Vac, Low Hold Up, 0-8mm, Viton O-Ring
Valve, Chem-Vac, Hi-Vac, Low Hold Up, 0-8mm, Viton O-Ring. Similar to CG-927 CHEM-VAC valve but with the arms bent to minimize hold up of fluids. Valve has TFE plug with three o-rings, the tip o-ring making the primary seal on the precision formed tapered seat. O-rings on the non-rotating shaft form an excellent dynamic seal between the TFE plug and glass barrel. See CG-935 for replacement plug, CG-537 for o-ring replacement kit, and CG-905 for glass portion only.
Chemglass Life Sciences Stopcock, Straight Bore, Glass Plug, Pressure, 4mm Bore, 17/40 Plug Size, 10mm OD Sidearms
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. Stopcock has a precision ground barrel and plug.
Chemglass Life Sciences Stopcock, Straight Bore, Glass Plug, Pressure, 2mm Bore, 12/30 Plug Size, 8mm OD Sidearms
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. Stopcock has a precision ground barrel and plug.
Ace Glass, Inc. 0-4mm high vacuum Easy Action stopcock
0-4mm high vacuum Easy Action stopcock with Tef-Cap O-ring seals eliminate exposure to corrosive materials. For use to at least 13.6 Kg internal pressure. An ultimate vacuum of 10-7 can be realized with the standard three seals. Smooth acting valve permits fine adjustment of the opening. Front ring seal makes a positive closure against a precision-formed heavy glass seal. NOT bakeable. O-Rings are NOT replaceable. Reference marks on the stopcock body aid in repetitive setting. Replacement plugs with O-Rings sold separately.