GRACO 234261 – Mechanical Back Pressure Regulator, P20-RM DN1, 290 PSI Max, 15-290 PSI Range,

GRACO 234261 – Low Back Pressure Fluid Regulator, 290 Max psi, 15-290 PSI Range, 5.7 GPM, SS, Spring Type, 3/8″(F) x 3/8″(F), 1/8″ BSPP Port, 3/8 F inlet x 3/8 F outlet

Low pressure back pressure fluid regulator designed for solvent/water based systems, providing precise pressure control from 15-290 PSI with spring-type operation for consistent performance in fluid handling applications.

Features:

This back pressure regulator limits the supply pressure to a set value by opening an outlet and guiding back excess material when the predetermined pressure has been achieved. These valves are used in circulating systems.

Additional Specifications

Thread: 3/8 F inlet x 3/8 F outlet

Material: Stainless Steel (SS)

Pressure Range: 15-290 PSI

Max Viscosity: 1000 CPS

Regulator Type: Spring

Gauge Included: No

System Type: Solvent/water based

Regulated Pressure Range: 15-290 PSI (100-2000 kPa, 1-20 bar)

Series: B

Type: Mechanical, back pressure

Valve Seat Orifice: 13mm (DN13)

Operating Mode: Mechanical (M)

Action: Back-pressure regulation (R)

Regulation Max: 20 bar pressure

Gauge Port Size (in)	1/8
Gauge Port Type	BSPP
Includes	Regulator Only
Inlet Size (in)	1
Inlet Thread Type	NPT
Maximum Flow Rate (GPM)	5.7
Maximum Regulated Pressure (psi)	290
Maximum Working Pressure (psi)	290
Minimum Regulated Pressure (psi)	29
Outlet Size (in)	1
Type	Back Pressure Regulator
Wetted Material	Stainless Steel, Tungsten Carbide, PTFE, Chemically Resistant Fluoroelastomer

Features

Spring-type operation for reliable pressure regulation

Stainless steel construction for corrosion resistance

Wide pressure range from 15-290 PSI

Handles viscosities up to 1000 CPS

Standard 3/8 female threaded connections

1/8 BSPP gauge port for pressure monitoring

Applications

Solvent-based fluid systems

Water-based fluid applications

Low to medium pressure fluid regulation

Industrial coating systems

Paint and finishing operations

Compatible Equipment

circulating systems

Related Parts

234255 – Regulator, Press, P 20-Rm, Dn13, NPT

234257 – Low Back Pressure Fluid Regulator, 145 Max psi, 15-145 PSI Range, 4.6 GPM, SS, Air Type, 3/8″(F) x 3/8″(F), 1/8″ BSPP Port

234258 – Stainless NPT Press Regulator, P50-Rm, 3/8 F Inlet/Outlet, 1/8 Bspp Gauge Port Gauge

233950 – P20-RM DN1

233811 – P20-RM DN13

234255 – P20-RM DN13 NPT

233812 – P50-RM

234258 – P50-RM NPT

233758 – P10-RM

Part of solvent/water based system family with instruction manual 309474. Gauge not included but can be added to 1/8 BSPP port. Back pressure regulator in the P20-RM DN1 series with NPT threading. Part of Series B regulators. Part is listed in the back pressure regulators family but detailed specifications are not provided on this introductory page

Reference Manuals

336834 (Page 3) Fluid Regulators List

309474 (Page 2) Low Pressure Fluid Regulators