Because of the pressure inside the retorts, a packing gland or stuffing box must be used to pass the wires (the heat penetration or heat distribution cable) into the vessel. The installation of a “stuffing box” designated as a C-24 or C-24-S, will permit the introduction of the wires into the retort while preventing the steam from exiting the hole. If a cable is to be removed or installed frequently, the “swivel type” (C-24-S) is recommended. It permits screwing the stuffing box into the retort without twisting the cable. “Flange” stuffing boxes are also available.

	C-24 Stuffing Box Permits the introduction of the wires into the retort while preventing the steam from exiting the hole.
	C-24-S "Swivel Type" Stuffing Box If a cable is to be removed or installed frequently, the “swivel type” is recommended.