Caps

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Greenwood

  • The new and improved CG-1167 HPLC Cap system provides the safest and most economical way of storing high performance, low pressure liquid chromatography mobile phase, sparging preventing bubbles from entering the system as well as collecting sample waste.The bottle is blue tinted plastic coated…

  • An inexpensive bottle cap for either GL-45 or GPI-38 threads that permits standard solvent or media bottles to be used as an HPLC reservoir. Caps have two holes to accomodate 1/8" tubing and one hole that accepts a standard luer inner joint. Caps are made from polypropylene and the inserts are…

  • Foam Plug

    Chemglass

    FOAM PLUGS FOR TEST TUBES AND LABORATORY FLASKS, INDENTI-PLUGS, Economical Open-cell, 1.45 lb. uniform-density foam Breathable and non-absorbent Use over a wide temperature range Autoclavable Chemical resistant Proven safe for algae culturing Identi-Plugs® are…

  • Cap is made from PBT (thermoplastic polyester) and will withstand temperatures from -45 to 200°C. PTFE seal is also available separately.

  • Vented Caps

    Chemglass

    Blue polypropylene vented cap has a 0.22µm PTFE hydrophobic membrane to allow gas exchange while preventing contamination. They are autoclavable at 121°C. Must be used with our 70mm silicone gasket

  • Open top cap for use with GL screw threads. The cap combined with the CG-197 sealing ring will accommodate tubing of the listed diameter. Cap is made from PPS (polyphenylsiloxan) and will withstand temperatures up to 250°C. *** HOSE CONNECTION SOLD SEPARATELY. SEE CG-198-H ***

  • Open top polypropylene screw caps supplied with PTFE faced silicone septa. Supplied in packages of 144.

  • Open top cap for use with GL screw threads. The cap combined with the CG-197 sealing ring will accommodate tubing of the listed diameter. Cap is made from PBT (thermoplastic polyester) and will withstand temperatures from -45 to 200°C.

  • NPT Plugs, PTFE

    Chemglass

  • NMR Tube Caps

    Chemglass

    Made from polyethylene, these caps are sized to fit 5mm O.D. NMR sample tubes. Cap fits tightly to stay in place during increased internal vaporization pressure. Available in a pack of 100, or in a convenient divided polypropylene box having 100 each of the 6 listed colors.

  • These caps, made of polypropylene, are ideal for use with volatile solvents, sensitive compounds, and biological media. The SURE-LINK process welds each cap with a Polypropylene/PTFE/Silicone liner bonded to the cap. This process allows the cap to maintain seal through multiple autoclaving…

  • Chem Snap Caps™ may be snapped on and off by hand which eliminates the need for metal crimping and decapping tools, thus reducing potential hazards due to sharp aluminum edges. Large opening provides greater target area for needle penetration. These liner-less Chem Snap Caps™ are…

  • These caps, made of polypropylene, are ideal for use with volatile solvents, sensitive compounds, and biological media. The SURE-LINK process welds each cap with a Polypropylene/PTFE/Silicone liner bonded to the cap. This process allows the cap to maintain seal through multiple autoclaving…

  • Replacement caps for 1 and 2 dram vials.

  • Threaded cap fits CG-172 outer joint, Rodaviss®. When used with CG-305 Viton o-rings, provides for greaseless high vacuum seal.

  • Solid SVL® cap for use with CG-187 screw threads. Caps come complete with PTFE faced liner. Cap and liner are autoclavable to 121ºC.

  • Replacement septa for use with MW-102 open-top screw caps on Minum-Ware® glassware components. Septa are made of silicone rubber with one side having a RED PTFE face, while the opposite side has an ultrathin covering of polypropylene to prevent needle coring when penetrating septa.

  • Bonded closures feature clear PTFE/Silicone bonded directly to the closure without the use of glue or adhesives. These bonded closures provide a cost effective, integrated, one-piece system that eliminates costly line fallout. Closures are available in both pre-slit and non-slit designs

  • Bonded closures feature a red rubber liner bonded directly to the closure without the use of glue or adhesives. These bonded closures provide a cost effective, integrated, one-piece system that eliminates costly line fallout.

  • Bonded closures feature clear PTFE/Silicone bonded directly to the closure without the use of glue or adhesives. These bonded closures provide a cost effective, integrated, one-piece system that eliminates costly line fallout. Closures are available in both pre-slit and non-slit designs

  • Pre-assembled closure and septa minimize contamination from handling.

  • Cap for use with CG-190 G.P.I. screw threads. Part number CG-191-14 is made of blue polypropylene with a detachable PTFE liner. NOTE: CAPS SOLD IN PACKAGES ONLY.

  • Bonded closures feature clear PTFE/Silicone liner bonded directly to the closure without the use of glue or adhesives. These bonded closures provide a cost effective, integrated, one-piece system that eliminates costly line fallout. Closures are available in both pre-slit and non-slit designs.

  • Caps and Tubes

    Chemglass

    Norell™ Standard NMR Tube Caps are made of low density polyethylene, and available in 3mm and 10mm. Premium Automated NMR Tubes ...an integral component of your spectrometer™.The C-UNI-5000 series NMR tubes are specifically made for today’s automated sample changers, where…

  • Pre-assembled closure and septa minimize contamination from handling. They are convenient and available in a variety of colors with your choice of septa.

  • Bonded closures feature clear PTFE/Silicone bonded directly to the closure without the use of glue or adhesives. These bonded closures provide a cost effective, integrated, one-piece system that eliminates costly line fallout. Closures are available in both pre-slit and non-slit designs.

  • Certified Bonded closures feature clear PTFE/Silicone bonded directly to the closure without the use of glue or adhesives. These bonded closures provide a cost effective, integrated, one-piece system that eliminates costly line fallout. Closures are available in both pre-slit and non-slit designs.

  • Minum-Ware® Caps

    Chemglass

    Used with Viton O-Rings and threaded outer joints for making grease-free, vacuum tight seals on 14/10 MINUM-WARE® glassware components. The 8-425 size is used on the sidearm of Hickman still head and MW-81 GC collection vial, while the 13-425 is used on the MW-56 two neck flask sidearm.

  • Open top SVL®; screw cap supplied complete with PTFE sealing ring to accept the tubing size as listed.

  • Replacement CHEM-CAP® plug and control knob for CHEM-VAC™ high vacuum valves CG-951 through CG-960. Plug is sold complete with control knob and CHEM-CAP® stem. PLEASE NOTE: CONTROL KNOB IS NOT SOLD SEPARATELY ON THE CG-900 SERIES VALVE. THE 0-20mm BORE SIZE VALVE IS OUR PREVIOUS…

  • The magnetic seals are for use with any instrument that transports the vial with the use of a magnet.

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