
PRECISION AIR 
IN OUT
¼ NPT 
GAUGE PORT 
(BOTH SIDES)
54.1
(2.13)
43.0
(1.69)
 4.2 (0.44)
35.0
(1.38)
54.1
(2.13)
¼ NPT
“IN” & “OUT”
PORTS
BLEED
SCREW
1.25 MOUNTING
BRACKET HOLES
17 
64
 (2) PLACES
PRG200-MB
MOUNTING
BRACKET
(OPTIONAL)
44.45 
(1.75)
TAMPER PROOF NUT 
(OPTIONAL)
Ø
PRESSURE REGULATOR
FOR ACCURATE, STABLE PRESSURE CONTROL
14 scfm at 100 psi
PRG200-40, shown 
actual size.
PRG200 Series
U Accurate Pressure 
Regulation to Within 0.1%
U Stable Output Across 
Full Flow Range 
U High Relief Capacity  
U Locking Nut Included 
U Built In Gauge Ports
The PRG200 Series is a high 
precision multi-stage regulator, 
which provides the highest level  
of regulation accuracy and 
repeatability available. A stainless 
steel measuring capsule is used as 
a sensing element to activate the 
high gain servo balanced control 
mechanism in which the main valve 
is controlled by a pilot valve. This 
allows for greater accuracy and 
eliminates many of the problems 
associated with conventional 
regulators using range springs and 
diaphragms.
SPECIFICATIONS
Flow Capacity: 14 scfm at 100 psig 
supply – 20 psig outlet 
Exhaust Capacity: 3 scfm (5 psig 
above 20 psig set point); 
11 scfm for PRG200-120H
Sensitivity: 
Pilot Pressure Chamber Bleed Rate: 
1
⁄8" (3.2 mm) H2O
< 0.08 scfm (0.15 m
Total Air Consumption: 6 scfh  
Supply Pressure Effect: < 0.005 psig 
(for 25 psig supply change) 
Supply Pressure, Maximum: 150 psig 
(50 psig for PRG200-25) 
3
/hr)
Dimensions: mm (inch) 
ø = diameter
PRG200-MB
MOUNTING
BRACKET
(OPTIONAL)
BRACKET HOLES
Materials: 
 Body: Diecast zinc alloy 
 Capsule and Adjusting Screw:   
 stainless steel 
 Assemblies: Stainless steel, brass,  
 plated steel, acetal 
 Diaphragms: Buna-N elastomer and  
 polyester fabric 
 Knob: Phenolic plastic
Weight: 635 g (1.4 lb) 
Port Size: 
Gauge Ports (2): 
1
⁄4 NPT 
1
⁄4 NPT
Mounting: Pipe, panel or  
optional bracket
IN OUT
12.7 mm (0.5") diameter hole 
for panel mounting; max panel 
thickness 12.7 mm (0.5")
 To Order Visit omega.com/prg200 for Pricing and Details
    OUTPUT PRESSURE RANGE 
 MODEL NO.  psi  bar
 PRG200-25  0.5 to 25  0.03 to 1.72 
 PRG200-40  2 to 40  0.14 to 2.76 
 PRG200-60  2 to 60  0.14 to 4.14 
 PRG200-120  2 to 120  0.14 to 8.27
 HIGH RELIEF MODEL 
 PRG200-120H  2 to 120  0.14 to 8.27
ACCESSORY
 MODEL NO.  DESCRIPTION
 PRG200-MB  Mounting bracket
Comes complete with operator’s manual. 
Ordering Example: PRG200-60, precision air pressure regulator, 2 to 60 psi 
(0.14 to 4.14 bar).
L-12
1.25 MOUNTING
17
Ø
 (2) PLACES
64
¼ NPT 
GAUGE PORT 
(BOTH SIDES)
VALVES AND REGULATORS
L