EnviroPump & Seal
Minimize

The "SUPER-ANSI" Pump!

Pumps are the heart of most Industrial Manufacturing plants.  Traditional ANSI pumps are inherently weak in design, resulting in high maintenance cost and reduced reliability.

The most common areas of failure are bearings and mechanical seals.

The VIT pumps were developed to remedy the shortcomings of these pump designs.

Whatever your needs in pumps and seals, if you are looking for long life, reduced maintenance, low life cycle cost, increased MTBF, better parts interchangeability, and reduced inventory to support your pumps and seals, we can help.



Comparing Bearings:

  EnviroPump Goulds Durco Durco
ANSI Group 1 VIT-500 ST/STX Mark III Mark II
Thrust Bearing 7210 x 2* 5306 5306 5305
Radial Bearing 6209 6207 6207 6206
         
ANSI Group 2 VIT-1000 MT/MTX Mark III Mark II
Thrust Bearing 7313 x 2* 5309 5310 5310
Radial Bearing 6312 6309 6310 6310

*  Double row bearings, with machined brass cages, mounted back
to back according to API-610 pump standard.

Compare Bearing Life:
(Dynamic Load Rating)
The higher the load rating (lbs), the longer the life.


Dynamic Load Rating (lbs)

  EnviroPump Goulds Durco Durco
ANSI Group 1 VIT-500 ST/STX Mark III Mark II
Thrust Bearing 14300 9360 9360 6910
Radial Bearing 7460 5730 5730 4380
         
ANSI Group 2 VIT-1000 MT/MTX Mark III Mark II
Thrust Bearing 39100 16400 19200 19200
Radial Bearing 18400 11900 13400 13400

Compare Life Rating Factor:
This is calculated by the ratio of Dynamic Load Rating (Brg. A ÷ Brg. B)³.

Life Rating Factor:

ANSI Group 1 EnviroPump
vs.
Goulds
EnviroPump
vs.
Durco III
EnviroPump
vs.
Durco II
Thrust Bearing 3.57 3.57 8.87
Radial Bearing 2.20 2.20 4.93

ANSI Group 2

     
Thrust Bearing 13.53 8.46 8.46
Radial Bearing 3.71 2.58 2.58

In all cases, EnviroPump and Seal's standard bearings will outlast Goulds or Durco
standard bearings by a minimum of twice as long.


Compare Bearing Frame Oil Volume:
(Pints-approx)

  EnviroPump
VIT
Goulds
ST   STX
Durco
Mark II/III
ANSI Group 1 3.1 0.4    0.7 0.5
ANSI Group 2 3.9 0.8    2.6 1.7
Lubrication Oil Mist Flood Flood

Large oil sump has a significant effect on bearing operating temperature.
Oil mist lubrication can reduce bearing temperature by as much as 70° F.
Bearing L10 life increases 2000 hrs. for every 10° F reductiion.

  
Copyright 2013 by Calkins Technical Products, Inc.   |  Website developed by LaJuett  |  Terms Of Use  |  Privacy Statement