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PRESSURE REGULATORS
Port Size: 1/4"
Spring Range: 0.3 to 7 bar (5 to 100 psig)
Inlet Pressure: 7 bar (100 psig)
Typical Performance Chart, R44
Air Flow Characteristics
Air Flow
Outlet Pressure
8
6
4
2
0
bar
100
80
60
40
20
0
psig
0 4 8 12 16 20 scfm
0 4 8 12 16 20 dm3/s
28 (1.1)
Models R44-100/-200 and R44-121/-221
(Aluminum or Brass Body
and Plastic Bonnet)
73 (2.86)
63 (2.46)
23 (0.91)
38 (1.50)
38 (1.50)
Models R44-133/-233
(Brass Body and
Brass Bonnet)
38 (1.50)
87 (3.41)
26 (1.03)
77 (3.01)
38 (1.50)
FOR COMPRESSED AIR,
CARBON DIOXIDE
AND INERT GASES
R44 Series
Starts at
$
40
R44-221-RNEA, $40,
shown actual size.
l Compact Design
l High/Low Pressure Models for Primary/
Secondary Regulation
l Plastic Locking Knob for Fast and Easy Adjustment
l Regulate Output Pressure From 0.1 to 12 bar
(1 to 175 psig)
l Standard Relieving Models Allow Reduction of
Outlet Pressure When System is Dead-Ended
l Panel or Bracket Mount
The R44 Series are industrial pressure regulators for use with
compressed air and inert gases such as carbon dioxide, argon
helium, krypton, neon nitrogen and xenon. The R83 models are for
primary high pressure regulation, while the R44 models are for
secondary low pressure regulation. These regulators are intended
for industrial use and are not to be used for beverage
dispensing applications.
Dimensions: mm (in)
SPECIFICATIONS
R44 MODELS
Operating Temperature: -34 to 66ºC (-30 to 150ºF)
Maximum Inlet Pressure: 17 bar (250 psig)
Materials R44:
R44-221: Brass body; acetal plastic bonnet
R44-233: Brass body, brass bonnet
Valve: Brass/nitrile
Seat: Acetal
Elastomers: Nitrile
R83 MODELS
Operating Temperature: -34 to 60ºC (-30 to 140ºF)
Maximum Inlet Pressure: 207 bar (3000 psig)
Materials R88: Brass body, zinc bonnet
Cartridge Valve: PTFE, brass, stainless steel
Diaphram: Acetal/nitrile
Seals: Nitrile
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Port Size: 1/4"
Spring Range: 0.3 to 8.5 bar (5 to 125 psig)
Inlet Pressure: 69 bar (1000 psig)
Flow
Outlet Pressure
8
6
4
2
0
bar
100
80
60
40
20
0
psig
Typical Performance Chart, R83
Flow Characteristics - CO
2
0 2 4 6 8 10 12 scfm
0 1 2 3 4 5 dm3/s
1.90 (48)
53 (2.10)
112 (4.41)
10 (0.40)
Mounting Holes (2 Places)
4.6 (0.18) dia. by
10 (0.39) deep.
Use 10-32 thread forming screws.
42 (1.66)
30º
R83-200-RNLA, $65, shown
smaller than actual size.
Dimensions: mm (in)
To Order (Specify Model Number)
MODEL NO. PRICE
R44-221-RNAA $40
R44-221-RNEA 40
R44-221-RNKA 40
R44-233-RNAA 45
R44-233-RNEA 45
R44-233-RNKA 45
R83-200-RNEA 65
R83-200-RNLA 65
R83-200-RNNA 65
ACCESSORIES
MODEL NO. PRICE DESCRIPTION
OM-AIR-18-025-003 $7.00 Wall bracket for R44 low pressure regulators
OM-AIR-2962-04 3.50 Panel nut for R44 low regulators
Ordering Examples: R44-221-RNEA, low pressure regulator for inert gasses with plastic locking knob for pressure range of 0.3 to 3.5 bar
(5 to 50 psig), OM-AIR-18-013-211, pressure gauge 0 to 4 bar (0 to 60 psig), and OM-AIR-18-025-003, wall bracket for R44 regulator, $40 + 14 + 7 = $61.
R83-200-RNNA, high pressure regulator for inert gasses with pressure range 0.7 to 12 bar (10 to 175 psig), and OM-AIR-18-013-209, pressure
gauge for 0 to 11 bar (0 to 160 psig), R44-233-RNAA, low pressure regulator with brass adjusting screw for pressure range of 0.1 to 0.7 bar
(1 to 10 psig), and OM-AIR-18-013-214, pressure gauge for 0 to 2 bar (0 to 30 psig), $65 + 45 + 14 = $124.
OM-AIR-5095-51 7.00 Neck bracket for R83 high pressure regulators
OM-AIR-18-013-214 14.00 40 mm (1.5") pressure gauge with
OM-AIR-18-013-211 14.00 40 mm (1.5") pressure gauge with
OM-AIR-18-013-212 13.25 40 mm (1.5") pressure gauge with
OM-AIR-18-013-208 14.00 50 mm (2") pressure gauge with
OM-AIR-18-013-209 13.00 50 mm (2") pressure gauge with
INLET/OUT GAUGE PORT
PORT (in) PORT (in)
1
⁄4
1
⁄
4
1
⁄
4
1
⁄
4
1
⁄4
1
⁄
4
1
⁄4
1
⁄4
1
⁄4
1
⁄8
1
⁄
8
1
⁄
8
1
⁄
8
1
⁄8
1
⁄
8
1
⁄4 High pressure regulator, 0.1 to 3.5 bar (2 to 50 psig)
1
⁄4 High pressure regulator, 0.3 to 8.5 bar (5 to 125 psig)
1
⁄4 High pressure regulator, 0.7 to 12 bar (10 to 175 psig)
MOST POPULAR MODELS HIGHLIGHTED!
DESCRIPTION
Low pressure regulator with plastic locking knob,
0.1 to 0.7 bar (1 to 10 psig)
Low pressure regulator with plastic locking knob,
0.3 to 3.5 bar (5 to 50 psig)
Low pressure regulator with plastic locking knob,
0.3 to 7 bar (5 to 100 psig)
Low pressure regulator brass adjusting screw,
0.1 to 0.7 bar (1 to 10 psig)
Low pressure regulator brass adjusting screw,
0.3 to 3.5 bar (5 to 50 psig)
Low pressure regulator brass adjusting screw,
0.3 to 7 bar (5 to 100 psig)
1
NPT, 0 to 2 bar (0 to 30 psig)
⁄
8
1
NPT, 0 to 4 bar (0 to 60 psig)
⁄
8
1
NPT, 0 to 7 bar (0 to 100 psig)
⁄
8
1
NPT, 0 to 4 bar (0 to 60 psig)
⁄
4
1
NPT, 0 to 11 bar (0 to 160 psig)
⁄
4
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