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Double Vane Pumps T7DDS Series

     Denison Vane Pumps are specially designed for high and low circuit applications and deliver wide speed ranges (600 to 3600 RPM) and high efficiencies of over 94% under high pressure. Double and Triple pumps allow for low flow at high pressure (300 bar max) and high flow at lower pressure. Search Lifco Hydraulics Double Vane Pump stock below:




Unit#(Click item for more)DescriptionStockPrice(USD)
024-92286-0/01T7DDS B38 B28 1L01 A100Out Of StockPlease Contact Us


Minimum Speed: (RPM) 600 600 600 600 600 600 600 600 600 600 600 600
Maximum Speed: HF-0, HF-1, HF-2 (RPM) 2200 2200 2200 2200 2200 2200 2200 2200 2200 2200 2200 2200
Maximum Speed: HF-3, HF-4, HF-5 (RPM) 1800 1800 1800 1800 1800 1800 1800 1800 1800 1800 1800 1800
Mounting Standard: ISO 3019-2100 A2 HW SAE J744, SAE B SAE J744, SAE B SAE J744, SAE B ISO 3019-2125 A2 HW SAE J744, SAE C ISO 3019-2125 B4 HW SAE J744, SAE C ISO 3019-2125 A2 HW SAE J744, SAE C ISO 3019-2250 B4 HW SAE J744, SAE E
Weight: Lbs (without connector/bracket) 71.9 71.9 57.3 57.3 85.1 85.1 123.4 123.4 145.5 145.5 209.4 209.4
Moment of inertia: (Lb.in2) 2.3 2.3 5.8 3.9 9.0 9.0 12.4 12.4 27.2 27.2 33.2 33.2
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024-92286-0/01 T7DDS B38 B28 1L01 A100

Price(USD):Please Contact Us
Stock:Out Of Stock

Common Units:

  • T67DC B38 014 1R04 A100 (024-93898-0)
  • T6CCM B22 B14 3R13 D100 (024-45175-013)
  • T67DC B31 025 1R00 A100 (054-35770-0)
  • T7EDS 066 045 1R00 A100 (024-92008-0)

3-D Drawings:

T6CC 3D Drawing
T6CC with R5U-R5V
View PDF

Application: T6CC Vane Pump & R5U/C5V/R5V Valves

     A metal forming press needed 58 GPM to close its platen at an acceptable speed and 3,500 PSI to produce sufficient force to bend the material. This would require a 125 horsepower electric motor to drive the hydraulic pump. But, the user of this press did not have this much electrical power available to him at his small shop! Do not despair. Upon further investigation it is revealed that the press needed little force to close its platen quickly; but, once the subject metal was contacted and began to bend, the required force went up. Also, not only was it acceptable for the platen to slow down while forming the metal, it was preferred. This feat was easily accomplished with just one 40 horsepower electric motor, through the magic of hydraulic circuitry and the use of standard components. A Parker T6CC double vane pump was harnessed – the front pump producing 41 GPM and the rear pump putting out 17 GPM. The flow from both pumps (58 GPM) is used to move the platen at high speed, but low force, to close the air space. The 40 horsepower is sufficient to push this high flow at up to 1,000 PSI. At this point a Parker R5U pump unloading valve, bolted directly onto the outlet port of the 41 GPM front pump, opens its flow to the reservoir, reducing its need for power to almost zero. A Parker C5V check valve, mounted on the same port as the unloading valve, isolates the two pumps, allowing the 17 GPM rear pump to continue moving the platen at up to 3,500 PSI. Once again making use of the 40 horsepower installed. To stop the pressure from exceeding 3,500 PSI, thus overloading the electric motor, a Parker R5V relief valve is bolted directly onto the outlet port of the rear pump. This hydraulic circuit technique is called High/Low which stands for High Flow / Low pressure & High pressure / Low Flow; allowing for a low horsepower, efficient hydraulic system.