CM/CMU Pump Specifications
Two-piece, horizontally-split, high-tensile, close grained gray iron or bronze (optional). All passageways are carefully matched to assure the very best hydraulic flow characteristics.
Bronze, reverse-flow, labyrinth-type replaceable wear rings increase pump life and keep maintenance costs to a minimum.
Matched bronze impellers, balanced both mechanically and hydraulically for vibration-free operation. Flame-plated impeller hubs (optional on CM, standard on CMU pumps) assure longer life despite the presence of abrasives in the water supply.
Heat-treated stainless steel is ground at all critical areas, polished under packing. An exclusive two-piece impeller shaft allows separation of the transmission from the pump without disassembling either component. This simplifies repair procedures, resulting in less down time.
Three deep-groove, anti-friction ball bearings, located outside the pumping chamber, give support and proper alignment to the impeller shaft assembly. Bearings are oil or grease lubricated, completely separated from the water being pumped, and protected by seal housings, flinger rings and oil seals.
Seal housings on packed pumps are equipped with braided flexible graphite (BFG) rings held in place by a split bronze gland which is fully removable and adjustable. BFG packing improves heat dissipation, reduces maintenance and minimizes shaft wear. Self-adjusting, spring-loaded mechanical seals are available which eliminate leakage and routine maintenance.
Located on the impeller shaft between seal housings and bearing housings, flinger rings provide added protection and keep water and foreign matter out of the bearings.
Standard lip type for lubrication and additional bearing protection from dirt and water.
Ball type bronze valve, in removable bronze housings with large waterways for smooth flow. Manual operation is standard, electric operation is optional. The Waterous transfer valve provides smooth transfer to either PRESSURE or VOLUME without sticking.Pump
CGV Pump Specifications
Two-piece, vertically-split, high-tensile, close-grained gray iron.
Bronze impeller specifically designed for the fire service, double-hubbed to eliminate axial thrust, and accurately balanced for vibration-free running. Impellers with flame-plated hubs for extreme wear resistance are optional.
Replaceable bronze wear rings to increase pump life and keep maintenance costs at a minimum.
Stainless steel, heat treated, precisely ground to size, and polished under shaft seal. Supported by oil-lubricated ball bearings.
All bearings are oil or grease lubricated, ball-type, located outside the pump casting to accurately align and support the impeller shaft assembly. Ball bearings are deep-groove type designed to carry both radial and axial thrust.
Double-mechanical seal. The double-mechanical seal chamber provides a water pocket to cool and lubricate the seal surfaces when only the CM pump is being used.
C22 Transmission Specifications
Housings: High-strength aluminum, three-piece, horizontally-split.
Drive Ratios: 2.27, 2.46
Shafts: Drive line shafts made from alloy steel forgings, hardened and ground to size, 2.35 inch 46-tooth involute spline.
Drive and Driven Sprockets
Made of steel. All sprockets are hardened and have ground bores.
Morse HV® high-strength involute form chain.
Deep-groove, anti-friction ball bearings give support and proper alignment to the impeller shaft assembly. Bearings are oil-splash lubricated, completely separated from the water being pumped, and protected by a V-ring and oil seals.
An internal lubrication system delivers lubricant directly to the drive chain. This unique design eliminates the need for an external lubrication pump and auxiliary cooling.
Constant-mesh, two-position sliding collar that engages all teeth simultaneously. In-cab controlled pneumatic shift . An internal locking mechanism provides a positive lock in PUMP or ROAD position.