Bulletin A-SAFR
Specifications - Installation and Operating Instructions
Series SAFR Subminiature Air Filter Regulator
SPECIFICATIONS
Service: Air only.
Wetted Materials:
Body: Aluminum alloy, chromate and epoxy paint;
Diaphragm: Nitrile elastomer;
Trim: Zinc plated steel;
Additional Materials: Brass, aluminum, SS, zinc plated steel.
Output:
0.7 to 30 psig (0.05 to 2 BAR);
1.4 to 60 psig (0.1 to 4 BAR);
1.4 to 120 psig (0.1 to 8 BAR).
Max. Supply Pressure: 150 psig (10 BAR).
Temperature Limits: 0 to 160°F (-18°C to 71°C).
Sensitivity: 0.25 in wc (6.4 mm wc).
Consumption: 6.0 scfh (170NI/min) max. at 150 psig (10 BAR) supply
change.
Flow Capacity: 14 scfm (396 NI/min).
Exhaust Capacity: 7 scfm (199 NI/min).
Process Connection: 1/8˝ in, out, gage (2) female NPT.
Weight: 0.35 lb (0.16 kg).
©Copyright 2013 Dwyer Instruments, Inc. Printed in U.S.A. 8/13 FR# RB-443919-00 Rev. 5
The Series SAFR is a miniature air pressure regulator that provides the
highest level of regulation accuracy and repeatability available in a
compact, lightweight body. This is ideal for applications that require exact
pressure control and substantial flow capacity under variable operating
conditions and limited space.
FEATURES
• Mountable in any position
• Mounting brackets are available
PRE-INSTALLATION
The SAFR is intended for use with industrial compressed air systems
only.
PANEL MOUNTING
The SAFR can be mounted in any position without affecting its operation.
Install the regulator in the air line. The body is fitted with a 1/8˝ NPT/BSP
for inlet and outlet connections. Apply a small amount of compound to the
male threads only. Inlet and outlet connections are labeled and should be
tightly secured. Make sure all connection are right and that the exhaust
vents in the bottom and side of the regulator are not blocked. For panel
mounting the panel mounting nut should be tightened with a torque of 60
in-lbs.
OPERATION
Turn on supply pressure slowly and then turn the adjusting knob until the
desired output pressure is reached. Since this instrument utilizes an air
bleed servo-control action, a slight sound of escaping air may be heard
in the area of the housing. This is normal and is required for the precise
control which this regulator offers.
3-27/32
[97.61]
1-3/8
[34.88]
(DATE CODE)
PROXIMITY CONTROLS
A DIV. OF DWYER INSTRUMENTS, INC.
MICHIGAN CITY, IN USA
S
AFR-X
PRESSURE REGULATOR
0-XX PSIG (MAXIMUM SUPPLY 150 PSIG)
MAINTENANCE/REPAIR
Upon final installation of the Series SAFR Subminiature Air Pressure
Regulator, no routine maintenance is required. The SAFR is not field
serviceable and should be returned if repair is needed. Field repair
should not be attempted and may void warranty.
WARRANTY/RETURN
Refer to “Terms and Conditions of Sales” in our catalog and on our
website. Contact customer service to receive a Return Goods
Authorization number before shipping the product back for repair. Be
sure to include a brief description of the problem plus any additional
application notes.
These products are intended for the use in industrial
compressed-air systems only. Do not use these products where
pressures and temperatures can exceed those listed under the specifications.
WARNING
Contact factory prior to use with other gases. Clean all pipe lines
to remove dirt and scale prior to installation.
CAUTION
This instrument vents to the atmosphere. The use of supply gas
other than air may create a hazardous environment. A filter (40
microns or less is recommended) should be installed ahead of the regulator to
prevent foreign matter in the air line from affecting the performance of the regulator.
If an air line lubricator is used, it should be located downstream of the SAFR.
CAUTION
Repeated cycling of supply pressure may cause increased
leakage and premature product failure.
CAUTION
PROXIMITY CONTROLS
Phone: 219/879-8000 www.dwyer-inst.com
A DIVISION OF DWYER INSTRUMENTS, INC.
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A.
(2 pages)
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