CIG (Crescent Internal Gear) pumps are produced primarily for fluid power applications and aircraft fuel test stands.
They are available in multiple stages for very high pressure or moderate pressure on very low viscosity fuels. Pumps are also available in double pump configurations which share a common inlet port but deliver two independent flows for supporting multiple machine functions.
The patented tooth profile of CIG pumps avoids trapping fluid. The result is a very low pulsation, extremely quiet high efficiency pump.
Single pumps are available in 54 different models and double pumps in over 1300 different combinations.
Single pump flow rates from 1 to 125 GPM ( 4 to 475 L/M) with continuous pressure ratings to 5000 PSIG (345 BAR).
Pumps are available in single and double configurations.  The double pumps have a common inlet port and two independent discharge ports.  Pumps can be provided in a number of staging arrangements allowing very high pressure capability or high pressure at low viscosity. 

CIGModel	Flow Range (1)		Pressure Range (2)
	GPM	L/Min	PSI	BAR
2*005	1.1	4.2	4000	275
2*006	1.6	6.1	4000	275
2*008	2.3	8.7	4000	275
3*010	2.9	11.0	4000	275
3*012	3.7	14.0	4000	275
3*016	5.3	20.1	4000	275
4*020	7.2	27.3	4000	275
4*025	9.3	35.2	4000	275
4*032	12.2	46.2	4000	275
5*040	15.3	57.9	4000	275
5*050	20.1	76.1	4000	275
5*063	26.1	98.8	4000	275
6*080	32.1	121.5	4000	275
6*100	41.9	158.6	4000	275
6*125	52.1	197.2	4000	275
8*160	67.4	255.1	4000	275
8*200	83.5	316.0	4000	275
8*250	105.1	397.8	4000	275

* Number of stages / Available 1 through 5 Stages
^{(1) At 1750 rpm / Capable of operating at higher and lower speeds - Contact Imo Pump
(2) Capable of operating at higher pressures - contact Imo Pump}