Graco Low Shear Fluid Back Pressure Regulator

Manufacturer Part Number: 25R647

Graco’s low shear back pressure regulator (BPR) minimizes shear and prevents paint degradation so that manufacturers produce consistent finish quality.

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graco 25r647
Graco Low Shear Fluid Back Pressure Regulator


Low Shear Fluid Back Pressure Regulator, 300 Max psi, 25 gpm Max flow rate, SST, Mechanical, high wear, sanitary inlet/outlet


  • Innovative flow path geometry provides industry-leading low shear capability
  • Ultralife series ceramic coated seat and flow directors significantly increase wear resistance capability and service life
  • Best-in-class performance holds pressure constant while flow rate changes
Technical Specifications
Compatible Material Waterborne, Solventborne
Gauge Port Size (in) 1/4
Gauge Port Type NPT
Inlet Size (in) 1.5
Inlet Thread Type Sanitary Flange
Maximum Flow Rate (GPM) 25
Maximum Operating Temperature (°F) 122
Maximum Regulated Pressure (psi) 250
Maximum Viscosity (cP) 1000
Maximum Working Pressure (psi) 300
Minimum Operating Temperature (°F) 32
Minimum Regulated Pressure (psi) 25
Outlet Size (in) 1.5
Outlet Thread Type Sanitary Flange
Type Back Pressure Regulator
Wetted Material Stainless Steel, Tungsten Carbide

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