fluids
High Pressure Hydraulics: Piston Pumps, Power Units, Motors and Valves.

Hydraulic Pumps for Water-Based,
Fire-Resistant and Other Special Fluids

 

Dynex provides pumps for use with special fluids including a variety of water-based, fire resistant and others. The properties of these special fluids include a combination of high or low viscosity with either high or low lubricity.

Various pump models are available for use with water glycol, Skydrol, and other phosphate ester fluids, Viscor and other diesel calibration fluids, machining coolant, brake fluid, and various military fluids.

Pumps for Aerospace Testing

Dynex checkball pumps provide exceptional performance in the harsh conditions required for testing aerospace components. Pumps operate at pressures to 20,000 psi, using a wide range of fluids including Skydrol, Hyjet and other phosphate ester fluids, and various MIL-SPEC fluids.

Pumps for Biodiesel Production

Dynex high-pressure pumps are used in the production process for biodiesel fuel, including various transesterification refinery processes. These pumps can operate at pressures to 8000 psi (560 bar) with various vegetable oils.

Dynex hydraulic pumps operate within a wide range of recommended viscosities from 31.6 to 3,142 SUS (1,5 to 680 cSt).

Special fluid applications include:

  • Wellhead Safety Control Systems
  • Blowout Preventer (BOP) Systems
  • Diesel Calibration Testing
  • Biodiesel Fuel Production
  • Hydrostatic Roll Balance Systems
  • Lubrication Systems
  • Hydraulic Test-Stands
  • Ground Support Equipment
  • Industrial Coolant Supply Systems
  • Hydroform Presses
Learn more about Why Checkball Pumps Work Better with special fluids.
 

Pumps for water glycol, diesel calibration fluid and skydrol

Dynex pump models are available for use with water glycol, Skydrol and other phosphate ester fluids, Viscor and other diesel calibration fluids, and various military fluids.

 

Pumps for water glycol, diesel calibration fluid and skydrol

Dynex PF4300-20 Series pumps with new stainless steel option offer improved corrosion resistance. Learn more about water-glycol pumps.

 

Pumps designed for low lubricity and low viscosity fluids


Checkball pumps feature a single fluid design, with internal bearing lubrication provided by the pumped fluid.
This design eliminates the potential for cross contamination, which may occur in other pump designs requiring a secondary fluid for lubrication.

Fluid Compatibility List

Various pump models are compatible with a variety of special fluids. Because many conditions affect successful operation, contact the Dynex sales department for a review of your application using any of these special fluids.

This is a partial list which is updated regularly. Not all compatible fluids are shown here.
 

 

 

Pumps qualified for water glycol and HW oceanic fluids

Dynex special fluid pumps have been qualified for water glycol fluids including Marston Bentley Oceanic HW443 and HW740 fluids at 10 000 psi (700 bar).

 

 Water Glycol

  ACT FR WG 200-D
  Castrol Transaqua HT
  Citgo Glycol FR-40 XD
  Citgo Glycol FR-5046 HP
  Houghto-safe 419
  Houghto-safe 620
  Houghton Aqualink 300
  Houghton Aqualink HT-804
  Oceanic HW443
  Oceanic HW525
  Oceanic HW540
  Oceanic HW625
  Oceanic HW640
  Oceanic HW740
  Ucon Hydrolube HP-5046

 Other Water-Based Fluids

  95-5 Fluid

 Diesel Calibration Fluids

  Viscor

 Biodiesel Fuel Production

  Vegetable Oils

 Phosphate Ester

  Brake Fluids
  Skydrol Fluids

 Military Fluids

  MIL-C-7024C Type II (Stoddard solvent)
  MIL-H-46170
  MIL-H-5606
  MIL-H-6083
  MIL-H-83282

 Other Synthetic Fluids

  Isopar Solvents
  Quintolubric 822 (Polyol ester)

 Machining Coolant

  Milicron Cimtech 310
  Castrol Ilocut 334