Omega Products R44-221-RNKA User Manual



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

C-1



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

C-2

One Omega Drive | Stamford, CT 06907 | 1-888-TC-OMEGA (1-888-826-6342) | [e-mail]

EPG05

www.omega.com

UNITED KINGDOM

www. omega.co.uk

Manchester, England

0800-488-488

UNITED STATES

www.omega.com

1-800-TC-OMEGA

Stamford, CT.

CANADA

www.omega.ca

Laval(Quebec)

1-800-TC-OMEGA

GERMANY

www.omega.de

Deckenpfronn, Germany

0800-8266342

Karviná, Czech Republic

FRANCE

www.omega.fr

Guyancourt, France

088-466-342

CZECH REPUBLIC

www.omegaeng.cz

596-311-899

BENELUX

www.omega.nl

Amstelveen, NL
0800-099-33-44

More than 100,000 Products Available!

Temperature

Calibrators, Connectors, General Test and Measurement
Instruments, Glass Bulb Thermometers, Handheld Instruments
for Temperature Measurement, Ice Point References,
Indicating Labels, Crayons, Cements and Lacquers, Infrared
Temperature Measurement Instruments, Recorders Relative
Humidity Measurement Instruments, RTD Probes, Elements
and Assemblies, Temperature & Process Meters, Timers and
Counters, Temperature and Process Controllers and Power
Switching Devices, Thermistor Elements, Probes and
Assemblies,Thermocouples Thermowells and Head and Well
Assemblies, Transmitters, Wire

Flow and Level

Air Velocity Indicators, Doppler Flowmeters, Level
Measurement, Magnetic Flowmeters, Mass Flowmeters,
Pitot Tubes, Pumps, Rotameters, Turbine and Paddle Wheel
Flowmeters, Ultrasonic Flowmeters, Valves, Variable Area
Flowmeters, Vortex Shedding Flowmeters

pH and Conductivity

Conductivity Instrumentation, Dissolved Oxygen
Instrumentation, Environmental Instrumentation, pH
Electrodes and Instruments, Water and Soil Analysis
Instrumentation

Data Acquisition

Auto-Dialers and Alarm Monitoring Systems,
Communication Products and Converters, Data
Acquisition and Analysis Software, Data Loggers
Plug-in Cards, Signal Conditioners, USB, RS232, RS485
and Parallel Port Data Acquisition Systems, Wireless
Transmitters and Receivers

Pressure, Strain and Force

Displacement Transducers, Dynamic Measurement
Force Sensors, Instrumentation for Pressure and Strain
Measurements, Load Cells, Pressure Gauges, Pressure
Reference Section, Pressure Switches, Pressure Transducers,
Proximity Transducers, Regulators,
Strain Gages, Torque Transducers, Valves

Heaters

Band Heaters, Cartridge Heaters, Circulation Heaters,
Comfort Heaters, Controllers, Meters and Switching
Devices, Flexible Heaters, General Test and Measurement
Instruments, Heater Hook-up Wire, Heating Cable
Systems, Immersion Heaters, Process Air and Duct,
Heaters, Radiant Heaters, Strip Heaters, Tubular Heaters

click here to go to the omega.com home page