Regulator Products

Reduce air line pressure to acceptable levels.

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Choose a regulator product from the drop down menu or from the chart below to learn more:

RA3/RB3 Series	Port Size: 1/4; Flows to 14 SCFM RA3 (Aluminum), RB3 (Brass)
RA4/RA4-0M Series	Port Sizes: 1/8, 1/4; Flows to 19 SCFM
R03 Series	Port Sizes: 1/8, 1/4; Flows to 15 SCFM
R08 Series Modular Updated!	Port Sizes: 1/4, 3/8; Flows to 68 SCFM
R16 Series Modular	Port Sizes: 1/4, 3/8, 1/2; Flows to 88 SCFM
R18 Series Modular Updated!	Port Sizes: 1/4, 3/8, 1/2; Flows to 165 SCFM
R120 Series Modular	Port Sizes: 1/4, 3/8, 1/2; Flows to 150 SCFM
R26 Series	Port Sizes: 1/4, 3/8, 1/2; Flows to 185 SCFM
R28 Series Modular Updated!	Port Sizes: 3/8, 1/2, 3/4; Flows to 233 SCFM
R30 Series	Port Sizes: 3/4, 1 Flows to 500 SCFM
R39 Series Modular	Port Sizes: 3/4, 1; Flows to 300 SCFM
R40 Series	Port Sizes: 1-1/2, 2; Flows to 1200 SCFM
R90 Series	Port Sizes: 3/4, 1; Flows to 380 SCFM
SR1 Series	SS, Port Size: 1/4; Flows to 12 SCFM
SR2 Series	SS Port Size: 1/2; Flows to 80 SCFM
AIR PILOT
R21 Series	Port Sizes: 1/4, 3/8, 1/2, 3/4; Flows to 220 SCFM
R31 Series	Port Sizes: 3/4, 1, 1-1/4; Flows to 700 SCFM
R41 Series	Port Sizes: 1-1/2, 2; Flows to 1600 SCFM
R90 Series	Port Sizes: 3/4, 1; Flows to 550 SCFM
COMMON P1
R09 Series Modular Updated!	Port Sizes: 1/4; Flows to 42 SCFM
R19 Series Modular Updated!	Port Size: 1/4, 3/8, 1/2; Flows to 64 SCFM
DIAL AIR
R11 Series Modular	Port Size: 1/4; Flows to 0.8 SCFM
R21 Series	Port Sizes: 1/4, 3/8, 1/2, 3/4; Flows to 220 SCFM
R31 Series	Port Sizes: 3/4, 1, 1-1/4; Flows to 700 SCFM
R41 Series	Port Sizes: 1-1/2, 2; Flows to 1600 SCFM
PRECISION
P15/P16 Series	Port Size: 1/4; Flows to 27.5 SCFM
P17 Series High Flow	Port Size: 1/4; Flows to 14 SCFM
P19 Series High Flow	Port Sizes 1/4, 3/8; Flows to 80 SCFM

RA4 (Standard) / RA4-0M (Manifold) Series

Port Sizes 1/8, 1/4; Flows to 19 SCFM

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View Installation Manual (pdf)

Features

This modular regulator includes:

Diaphragm Operated for Fast Operation
Large Diaphragm to Valve Area Ratio for
Precise Regulation and High Flow Capacity
Balanced Valve Design for Precise Regulation
High Flow
Suitable for Low Temperature Applications
Non-Rising Adjusting Knob

Specifications

Flow Capacity*	1/8" & 1/4"	17; 19 SCFM (6.6 dm³/s)
Maximum Supply Pressure	300 PSIG (20.7 bar)
Operating Temperature	40° to 125°F (4.4° to 52°C)
Port Size	NPT / BSPP-G	1/8, 1/4
Weight	0.25lb. (0.23 kg)
* SCFM = Standard cubic feet per minute at 100 PSIG, 90 PSIG no flow secondary setting and 10 PSIG pressure drop.