CASING: Cast iron construction; tapped for drain, vent cock, and pressure gauge. Suction and discharge connections are standard ASA flanged type for easier installation. These pumps are of the back pull-out design to permit removal of the motor and all rotating parts without breaking the suction and discharge connections. Casings are center line discharge for automatic venting when used in the standard vertical discharge position. Discharge can be field rotated for 90 degree position changes.
IMPELLER: Single piece enclosed bronze casting, fully balanced with the diameter cut for specific condition points. Cast iron impellers are available for all-iron pumps.
SHAFT: The pump end is mounted on the motor shaft, thereby eliminating alignment problems. Shaft is alloy steel, turned and ground.
SHAFT SLEEVE: Renewable bronze shaft sleeve prevents contact between the shaft and the liquid being pumped. Stainless steel shaft sleeves are available as an option.
WEARING RING: Renewable bronze wearing ring pressed into the pump casing is standard on CK models and optional on CC and CG models.
MECHANICAL SHAFT SEALS: Leakless mechanical shaft seals with ceramic and carbon faces, plus stainless steel components eliminate maintenance and adjustment problems. A copper bypass line (standard on CG and CK models, optional on CC models) prevents dead-ending of abrasives in the seal chamber. Non-standard mechanical shaft seals are available for special operating conditions.
MOTORS: Motors are of standard NEMA drip-proof design. Totally enclosed and explosion proof motors are also available. Motor bearings are factory lubricated and sealed for long life without field lubrication. Fractional H.P. single phase motors have built-in overload protection. All other motors should be provided with magnetic starters. Standard NEMA Type JM closecoupled pump motors are utilized for ease of replacement and to provide short shaft overhang, reducing the effects of axial strain on the motor bearings