GRACO 238890 – High Pressure Fluid Regulator with Gauge, Medium Range, 500-3000 PSI, Stainless

GRACO 238890 – High Pressure Fluid Regulator, 500-3000 PSI, 1 gpm, SST Spring, 3/8″(F) x 3/8″(F), 1/4″(F) Port, w/ Gauge

High pressure fluid regulator designed for demanding spray finishing applications requiring precise pressure control. Features stainless steel construction with spring-loaded pressure regulation for consistent performance in high-pressure systems up to 6000 PSI maximum pressure with operating range of 500-3000 PSI.

Features:

Stainless steel wetted materials are compatible with catalyst and waterborne materials

Tungsten and carbide materials ensure low wear and long life

Valve cartridge for quick cleaning and replacement reduce downtime

Glycerin filled gauge for accurate pressure reading

Additional Specifications

Flow Rate: 2 gpm (7.6 lpm)

Material: 304, 316, 17-4 passivated stainless steel, nickel- and cobalt-bound tungsten carbide, PTFE

Maximum Operating Temp: 120°F (50°C)

Maximum Fluid Viscosity: Up to 15,000 cp

Weight: 7.0 lb (3.2 kg)

Adjustment Tool: 6 mm hex wrench

Maximum Inbound Air Pressure: 100 PSI (0.7 MPa, 7 bar)

Wetted Part Number: 248090 – ceramic

Wetted Parts: SS

Gauge Included: Yes

Actuation Type	Spring
Gauge Port Size (in)	1/4
Gauge Port Type	NPT
Includes	Gauge
Inlet Size (in)	3/8
Inlet Thread Type	NPT
Maximum Flow Rate (GPM)	1
Maximum Regulated Pressure (psi)	3000
Maximum Viscosity (cP)	15000
Maximum Working Pressure (MPa)	41
Maximum Working Pressure (psi)	6000
Minimum Regulated Pressure (psi)	500
Outlet Size (in)	3/8
Type	Fluid Regulator
Wetted Material	Stainless Steel

Features

Spring-operated with fluid pressure gauge

Waterbase-compatible construction

Stainless steel with passivated finish

High pressure capability up to 6000 PSI inlet

Cobalt-bound tungsten carbide components

PTFE sealing components

Applications

High pressure fluid regulation

Waterbase coating systems

Chemical processing applications

Industrial fluid dispensing

High pressure spray finishing systems

Industrial coating applications

Compatible Equipment

Merkur Bellows spray systems

Related spray gun equipment listed on page

Related Parts

238891 – Corrosion Resistant High Pressure Fluid Regulator, 3000-5000 PSI Range, 1.0 gpm, SST, Spring Type, 3/8(F) x 3/8(F), 1/4(F) Port

238892 – High Pressure Fluid Regulator, 3000-5000 PSI, 1 GPM, SST Spring, 3/8″(F) x 3/8″(F), 1/4″(F) Port, w/ Gauge

238894 – High Pressure Fluid Regulator, 500-4000 PSI, 1 gpm, SST, 3/8″(F) x 3/8″(F), 1/4″(F) Port, w/ Gauge

244734 – Air Operated High Pressure Fluid Pressure Regulator w/ Ez Flush Gauge Port

248090 – Air-Operated Fluid Pressure Regulator, 316Ss, 3/8 NPT Inlet/Outlet

243340 – Pail Cover with Agitator – SST

222121 – Fluid Regulator, Stainless Steel

24A567 – Pump Outlet Fluid Filter, Stainless Steel

Model includes EZ Flush plug feature. Instruction manual 308647. Fluid pressure gauge range 0-3000 PSI. Part of high pressure regulator family with easy flush plug available. Instruction manual 308647 provides detailed setup and maintenance information. This is an accessory component for Merkur Bellows spray systems. The page shows it as part of a comprehensive accessories lineup for spray applications.

Reference Manuals

336833 (Page 127) Single Component Catalog – Buyer’s Guide and Specifications

336834 (Page 2) Fluid Regulators List

344834 (Page 6) Bellows Pumps

345020 (Page 37) Finishing Accessories

308647 (Page 1) Fluid Pressure Regulators