Coupling for clamping reaction flask to reaction flask heads

PTFE crescent ring "L" shaped gaskets for use with coupling. These gaskets are placed between the flat ground glass surfaces of the head and flask. Consists of a flat ring with locating skirt. Temperature limit, 200°C.

Complete coupling consists of two plastic, phenolic resin rings, set of three clamp inserts with clamp insert clips, and appropriate number of stainless steel bolts, springs, nuts and washers. The inserts are placed inside the coupling and used with the clamp insert clips to firmly secure the flask to the head. Preset optional T-handle torque wrench, 30 in-lbs maximum, and 1/4" socket are available for safe tightening of coupling. Gaskets (required), wrench, and socket are not included with coupling, and must be ordered separately.