Glass plunger valve has a 5 mm I.D. thermowell for a thermocouple wire or sheathed probe up to 1/8 in. (3.2 mm) diam. Overall length of plunger valve is 190 mm. The thermowell length is 70 mm. Plunger has a hole on the side that, when positioned in relation to the O-ring seal, allows tube to be open or closed to the atmosphere (i.e. pull to close, push to open).Complete item consists of tube with #15 Ace-Thred, PTFE bushing with FETFE® O-ring, and plunger valve with thermowell.Replacement FETFE O-rings:Ace-Thred # Front Seal Back Seal7 Z504661 Z50474215 Z504858 Z50502125 Z505056 Z505110CAUTION: This glassware is not guaranteed against breakage caused by pressure or vacuum. These tubes should never be used if scratched or otherwise damaged.
FETFE is a registered trademark of Ace Glass, Inc.