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Self-Priming Gear Pumps
ECO
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HOW TO SELECT THE RIGHT PUMP

  PUMP IDENTIFICATION NUMBER SELECTION GUIDE
 
All ECO pump identification plates include the basic model number. These numbers fully describe the pump and seal specifications necessary for the future identification of your pump, and the replacement of parts or equipment, as needed.

Look at the sample model number (to the right) to see what information these numbers contain.

Note: Be sure to provide complete nameplate data when you order spare parts or replacement pumps.
 
 

NOTES:

  1. Max differential pressure allowed for plastic/plastic gears is 50 PSI

  2. Pumps with metallic drive & idler gears require minimum viscosity of 100 cps & are limited to 1440 RPM maximum speed for G2-Gh8 pumps and 1150 RPM for GA12-16 pumps.

  3. Ceramic wear plates with metallic gears require minimum viscosity of 100 cps.

  4. Viton U-Cup lip seals are limited to 25 psi.

  5. Not all mechanical seals available in all metallurgies.

  6. Double mechanical seals must be pressurized with seal fluid 15 to 20 PSIG above the pump discharge pressure.
 
Position 1 Gearchem External Spur Gear Pump
G = Original Version, Foot Mounted Only 2,4,6,8
GA = Mechanical Seal, Foot Mounted Only
2,4,6,8,12,16
GC = Mechanical Seal, C-Face Motor Mounting Assembly 2,4,6,8
GH = 316SS Higher Pressure Model, Foot Mounted Only 6,8
Position 2 Pump Size 2 4 6 8 *6 *8 12 16
Port Size .25” .50” .75” 1.00” .75” 1.00” 1.50” 2.00”
Capacity (GPM MAX) 1.5 3 10 20 10 20 26 55
Differential Pres (PSI MAX) 100 100 100 50 200 100 100 100
Position 3 Available Pump Metallurgies and Type Port Connection
A = 316SS        FNPT x x x x x x x  
C = Alloy C       FNPT x x x x x x x  
D = Alloy 20      FNPT x x x x x x x  
K = 316SS        FBSPT x x x x x x x  
M = Alloy C       FBSPT x x x x x x x  
N = Alloy 20      FBSPT x x x x x x x  
U = 316SS        Flanged           x x x
V = Alloy C       Flanged           x x x
W = Alloy 20     Flanged           x x x
Position 4 Drive Gear Material
C = Alloy C x x x x x x x x
D = Alloy 20 x x x x        
T = TFE (Glass Filled)              (1) x x x x        
E = PEEK                               (1) x x x x        
Position 5 Idler Gear Material
C = Alloy C                              (2) x x x x x x x x
D = Alloy 20                             (2) x x x x        
K = Carbon x x x x   x x x
T = TFE (Glass Filled) x x x x   x x x
E = PEEK x x x x x x x x
Position 6 Wear Plate Material
K = Carbon x x x x x x x x
T = TFE (Glass Filled) x x x x x x x x
Z = Ceramic                              (3) x x x x x x x x
E = PEEK x x x x x x x x
Position 7 Bearing Material
K = Standard Carbon x x x x x x x x
T = TFE (Glass Filled) x x x x x x x x
L = Extended Life Carbon x x x x x x x x
C = Extended Life Carbon ‘CW’Shafts x x x x x x x x
4 = Standard Carbon -- Slotted             x x
Position 8 Seal Arrangement   G
2-4 		GA/GC
2-4 		G
6-8 		GA/GC
6-8		 GH
*6 		GH
*8 		GA
12-16
Packing                
B = TFE Rings   x   x        
G = Grafoil Rings   x   x        
J = Viton Lip Seal H-C Spring (4) x   x        
N = TFE Rings / Lantern   x   x   x x x
R = Grafoil / Lantern   x   x   x x x
Mechanical Seals – Bellows (5)              
A = Single Seal: Carbon Rotary / Viton
      Ceramic Seat /Viton 		    x   x      
C = Double Seal: Carbon Rotary / Viton
      Ceramic Seat / Viton 		(6)   x   x      
P = Single Seal: Siliconiized Rotary / EPR
Siliconized CBD Seat /TFE 		    x   x      
Mechanical Seals – Wedge                
E = Double Seal: Carbon Rotary / TFE
      Ceramic Seat /Viton 		    x   x x x x
Q = Single Seal: Teflon Rotary / TFE
       Silicon CDB Seat / TFE 		    x   x x x  
U = Single Seal: Carbon Rotary / TFE
       Silicon CBD Seat /TFE 		    x   x x x x
V = ExternalSeal: Carbon Rotary / TFE
       Metallic Seat /TFE 		    x   x      
W = External Seal: Carbon Rotary / TFE
        Silicon CBD Seat / TFE 		        x      
Z = External Seal: Vacuum Carbon
      Rotary / TFE Metallic Seat / TFE 		    x   x      
24 = Single Seal: Carbon Rotary / TFE
        Metallic Seat / TFE 		              x
44 = Single Seal: Carbon Rotary / TFE
        Metallic Seat / TFE 		(6)             x
Position 9 Options
Consult your local distributor for options to meet your special requirements.