Double Fixed Displacement

3520VQ

The Northman 3520VQ Series double pump is a fixed displacement, hydraulic balanced vane pump. This high performance intravane pump features the 10 vane design for the high pressure and speed requirements of mobile applications. The available flow ratings for the 3520VQ series are from 21 GPM to 38 GPM at 1200 RPM on the shaft end and from 2 to 14 GPM at 1200 RPM on the cover end. Viton seals are standard. Standard rotation is right-hand (clockwise), with left-hand rotation (counterclockwise) available ("L" option). The flange mounting is the SAE "C" two-bolt standard. The outlet port may be oriented in any one of four positions.

  
 
 
 
 
 
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Model Code - top



 
 


Performance Curves - top

3520VQ Double Pump

SAE 10W Fluid at 120°F.
Pump Inlet at 0" hg.


Specifications - top

Shaft End Pump
Flow Code
GPM @ 1200 RPM & 100 PSI
Displacement
in³/r (cm³/r)
Max. Speed
RPM
Max. Pressure
PSI (BAR)
P/N Example
3520VQ-30-A-12-1-CC-20
("30" = Shaft End Pump)

21

3.90 (64)

2500

3000 (210)

25

4.83 (79.2)

30

5.80 (95)

35

6.65 (109)

2400

38

7.20 (118)
Cover End Pump
Flow Code
GPM @ 1200 RPM & 100 PSI
Displacement
in³/r (cm³/r)
Max. Speed
RPM
Max. Pressure
PSI (BAR)
P/N Example
3520VQ-30-A-12-1-CC-20
("12" = Cover End Pump)

2

0.43 (7)

2700

3000 (207)

5

1.10 (18)

8

1.67 (27)

9

1.85 (30)

11

2.22 (36)

12

2.47 (40)

2300 (159)

14

2.78 (45)

2000 (138)


Dimensions - top

3520VQ Double Pump
Dimensions in inches