Stopcocks

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  • These high vacuum valves have a barrel with two side arms attached at a 180° angle to each other and on the same plane. The borosilicate glass valve body features a precision-formed tapered valve seat and a precision tooled external thread. The design of cap (made of Delrin®) and valve stem…

  • Balloon Adapters

    SP Wilmad-LabGlass

    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.

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

  • These borosilicate glass straight bore stopcocks with straight sidearms include stopcock plugs and barrels that are ground to interchangeable Standard Taper specifications. Plugs (also sold separately) are solid and have a 1:10 taper.

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