Graco's Senator Series

Graco is an American manufacturer that earned worldwide recognition for its competitive fluid handling technologies.

Graco Senator is a series of positive displacement, priming piston pumps that are designed for high pressure and high flow rates pumping. The senator pumps are built with unmatched durability, power, and reliability when it comes to evacuating inks of different types. Using piston technology, Senator pumps can deliver extremely high volumetric efficiency and can operate under the highest hydraulic pressure.

Design Advantages

  • Uniform and easily controlled fluid transfer
  • Relatively low-cost solution
  • Long-life packing design
  • Low maintenance units
  • Evacuates with pails, drums and bins with ease
  • Prolong seal life with enclosed, dual seal wet cup

Available Options

All-Pumps can customise pumps according to your requirements and specific applications. Get in touch with us today to find the right pump!

  • Pneumatic and hydraulic motor options
  • Kits and accessories
  • Spare parts

Key Specifications

  • Flow 432 m3/h
  • Pressures up to 403 bar
  • Pump ratio: 19:1
MODEL 19:1 RATIO SENATOR PUMP
Air Inlet Size (mm) 19.05
Air Inlet Thread Gender Female
Air Inlet Thread Type NPSM
Fluid Outlet Size (mm) 25.4
Fluid Outlet Thread Gender Female
Fluid Outlet Thread Type NPT
Maximum Continuous Cycle Rate (CPM) 60

Applications

  • Ink transfer in ink manufacturing plants
  • Printing applications
  • Letterpress
  • Lithographic
Talk to our experts
Tsurumi GPN

PRINCIPLE OF OPERATION

A piston pump’s working principle is similar to a positive displacement pump’s, operating with assistance from a pumping mechanism force to increase the volume of the liquid. Graco’s piston pumps are lift type. In this type of pump, the piston’s upward stroke causes the fluid to be drawn to the lower portion of the cylinder with the help of a control device called valve. Meanwhile, the downward stroke lets the fluid flow to the upper cylinder portion with the help of control devices which are arranged in the piston. After fluid is drawn upward, it is released outside the pump from the higher portion of the cylinder through a spout.

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