GRACO 25T478 - Medium Pressure Fluid Back Pressure Regulator, 1000 Max psi, 5 gpm Max flow rate, SST, Pneumatic, 3/8" NPT
Medium pressure pneumatic back pressure regulator designed to maintain upstream fluid pressure regardless of flow demand, enabling precise finishing process control. Maintains consistent fluid control crucial for quality finishing processes while allowing operators to trigger guns, valves and other flow controls without affecting system pressure.
Improve finishing process control with this medium pressure, pneumatic back pressure regulator (BPR).
Additional Specifications
- Flow Rate: 0-5 gpm
- Thread: 3/8 in. NPT
- Type: Pneumatic
- Dimensions A: 4.84 in. (123 mm)
- Dimensions B: 2.38 in. (60 mm)
- Max Fluid Inlet Pressure: 3000 PSI (20.7 MPa, 207 bar)
- Max Air Working Pressure: 100 PSI (0.7 MPa, 7.0 bar)
- Approvals: CE, Ex h IIB T6 Gb, 0°C to 50°C
- Protection Type: constructional safety 'c'
- Flow Type: Lower Flow
Specifications
| Compatible Material | Waterborne, Solventborne |
| Gauge Port Size (in) | 1/4 |
| Gauge Port Type | NPT |
| Inlet Size (in) | 0.375 |
| Inlet Thread Type | NPT |
| Maximum Air Inlet Pressure (psi) | 100 |
| Maximum Flow Rate (GPM) | 5 |
| Maximum Operating Temperature (°F) | 122 |
| Maximum Regulated Pressure (psi) | 1000 |
| Maximum Viscosity (cP) | 250 |
| Maximum Working Pressure (psi) | 3000 |
| Minimum Operating Temperature (°F) | 32 |
| Minimum Regulated Pressure (psi) | 100 |
| Outlet Size (in) | 0.375 |
| Outlet Thread Type | NPT |
| Type | Back Pressure Regulator |
| Wetted Material | Stainless Steel, Tungsten Carbide, PTFE, Acetal Homopolymer |
Features
- Maintains upstream fluid pressure regardless of flow demand
- Interfaces with GRACO's Intelligent Paint Kitchen (IPK) for automated control
- Better resolution than other brands for more accurate pressure control
- Pneumatic operation for precise control
- Wet parts made of stainless steel, tungsten carbide, PTFE, and acetal homopolymer
Applications
- Finishing process control
- Paint spray systems
- Industrial coating applications
- Systems requiring consistent fluid pressure control
Compatible Equipment
- GRACO's Intelligent Paint Kitchen (IPK)
- Spray guns and valves
- Flow control systems
Related Parts
Part of GRACO's medium pressure BPR family with three pneumatic options (1000 PSI, 2000 PSI, 3000 PSI) and one mechanical option. Installation and operation instructions available in manual 3A7681. Regulated range is 250–1000 PSI (1.7–7 MPa, 17–70 bar) above 3 gpm (11 lpm). Type of Protection 'd' applied is constructional safety 'c'. Part of the Lower Flow Medium Pressure BPR pneumatic series. The diagram shows the assembly structure with numbered components 1-14, but specific part breakdowns are not provided for individual model variations.
Reference Manuals
