GRACO 25T477 – Medium Pressure Fluid Back Pressure Regulator, 2000 Max psi, 5 gpm Max flow rate,

GRACO 25T477 – Medium Pressure Fluid Back Pressure Regulator, 2000 Max psi, 5 gpm Max flow rate, SST, Pneumatic, 3000 PSI, 3/8″ NPT

Medium pressure pneumatic back pressure regulator that maintains upstream fluid pressure regardless of flow demand, allowing operators to trigger guns, valves and other flow controls without affecting system pressure. Provides consistent fluid control crucial for guaranteeing quality from finishing processes with better resolution than other brands for more accurate pressure control.

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

Max Working Pressure: 3,000 PSI maximum

Regulated Pressure: 250-2,000 PSI

Type: Pneumatic

Dimension A: 4.84 in. (123 mm)

Dimension B: 2.38 in. (60 mm)

Flow Range: 0-5 gpm, 0-19 lpm

Max Air Working Pressure: 100 PSI (0.7 MPa, 7.0 bar)

Approvals: CE, Ex h IIB T6 Gb

Temperature Range: 0°C to 50°C

Protection Type: constructional safety ‘c’

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)	2000
Maximum Viscosity (cP)	250
Maximum Working Pressure (psi)	3000
Minimum Operating Temperature (°F)	32
Minimum Regulated Pressure (psi)	250
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

Better resolution than other brands for more accurate pressure adjustment

Interfaces with GRACO’s Intelligent Paint Kitchen (IPK) for automated control

Controls pressure and flow without human intervention

Pneumatic operation for responsive control

Applications

Finishing process control

Paint finishing operations

Fluid pressure regulation in spray systems

Quality control in coating applications

Compatible Equipment

GRACO Intelligent Paint Kitchen (IPK)

Related Parts

25T478 – Medium Pressure Fluid Back Pressure Regulator, 1000 Max psi, 5 gpm Max flow rate, SST, Pneumatic, 3/8″ NPT

25R490 – Medium Pressure Fluid Back Pressure Regulator, 3000 Max psi, 5 gpm Max flow rate, SST, Pneumatic, 3/8″ NPT

25R491 – Medium Pressure Fluid Back Pressure Regulator, 3000 Max psi, 5 gpm Max flow rate, SST, Mechanical w/ locking nut, 3/8″ NPT

Part of GRACO’s medium pressure BPR family which includes three pneumatic models (1000 PSI, 2000 PSI, 3000 PSI) and one mechanical model (3000 PSI). Installation manual 3A7681 available. Part of back pressure regulator family with different pressure ranges and configurations. Regulated range is 250-1000 PSI (1.7-7 MPa, 17-70 bar) above 3 gpm (11 lpm). Part 25T477 is listed in the header as one of three models in the Lower Flow Medium Pressure BPR, Pneumatic family, but specific specifications are not provided on this page. The page shows detailed assembly information for model 25R490.

Reference Manuals

345174 (Page 2) Medium Pressure BPRs

3A7681 (Page 2) Medium Pressure Back Pressure Regulators