Johnson Heavy Duty Stuffing Boxes (Bronze, 2-7/8”)

Bronze, 2-7/8". These stuffing box systems are engineered and built to seal out seawater and give unmatched protection for your propulsion system. Air Valve Extension - Used to inflate and deflate Air Seal ring. Inflate to 15 psi to engage seal. Maximum 40 psi. Water-Lubrication Service Inlet - Inlet is aft of packing and connects to ship's piping. It delivers water-lubrication to shaft bearing. Pre-drilled Flanges - Housing flanges are precision-drilled for easy, accurate mounting, unless otherwise specified. "Zerk" Grease Service Fitting - Channels grease to packing. Packing Retaining Gland. Additional Water-Lubrication Service Inlet. Ribbed and Perforated Lantern Ring. All sizes supplied with grease lantern ring. Packing is not included as standard equipment. An additional charge will be made when packing is specified. Mounting flange holes are drilled standard unless otherwise specified. Bronze stuffing boxes sizes 2" through 6-1/4" can be supplied with integral steel mounting flange for bulkhead welding at 20% additional charge. When ordering specify steel flange.