Double-walled quartz immersion well for use with 7863, 7864, 7865, 7891, or 7885 pilot scale Reactor and 7825 lamps only. Coolant is introduced through a 4.8mm I.D. PTFE tube attached to a glass tube and secured with a #7 Screw thread bushing. PTFE tube extends down the annular space to insure flow of coolant from bottom of well upward to outlet. Well is used with 7506-14 nylon bushing with FETFE o-ring to form a compression type seal with threaded reaction vessels.
Well offers a greaseless connection and can be adjusted to desired height. The Screw thread means easier dismantling since there is no chance of freezing. Code -26 is for use in 7891 turntable reactor; code -38 for use in 7863, 7864, and 7865 reaction vessels, all capacities.