Waste Water Treatment Applications


Type of Industry : Waste Water Treatment


waste_5Details of equipment:

Vertical mixer drive

Details of original drive:

Eurodrive type vertical gearmotor with solid output shaft using rigid coupling to interface the drive to the mixer’s impeller shaft. Assorted sizes ranging from 5 HP through 25 HP motors, all with 25:1 ratio gearing and Class II Service Factor.

Details of Dorris replacement drive:

Modified 315SM25 SMR with vertical ‘p’ face input and vertical hollow output shaft which "swallows" the mixer’s impeller shaft. Drive is equipped with true dry well construction to prevent possibility of oil leakage down the output shaft and oil level switch to shut down motor in case of low oil condition.

How has the Dorris drive performed, enhanced, simplified, condensed, etc. the customer’s overall drive package?

One drive fits all motor sizes. Performs superbly and eliminates the very expensive LSS rigid coupling which had been used to interface the drive to the impeller shaft. The dry well also makes the drive leak proof which was not available in vertical gearmotor type drives. The drive and application is a real good match.

Why did Dorris get the order?

Superior design

waste_6

 

Type of Industry : Waste Water Treatment


waste_7
 
Details of Equipment:
 

Aerators and screw pumps

 Details of original drive:

Dodge 125 through Dodge 925 --- From 3 motor HP through 100 motor HP
From 50 RPM output speed through 72 RPM output speed
Motor to belts and sheaves to gear drive

Details of Dorris replacement drive:

Dorris 107TR through 415TR, some with ratios other than 25:1
We are supplying the drives with Daubert VCI-105 rust inhibitor, special assembly, special packaging, a special oil drain location, and a special torque arm assembly.

How has the Dorris drive simplified, condensed, etc. the customer’s overall drive package?

The customer selected 20:1 and 40:1 ratios, optimizing the belt and sheave ratios. The motor mount side brackets and bottom plate are assembled at the factory, reducing their installation time.

Why did Dorris get the order?

CUSTOMER SERVICE – The entire Dorris organization earned this customer. Every technical and commercial question was answered thoroughly and promptly. Special machining, assembly, and packaging.

waste_8

Dorris Gear Drive: 315TR with Special Motor Mount
315TR25F1 w/ 315T315 Bushing Kit & 3MM-3 Motor Mount for 326T Motor