User Manual

Bulletin A-AFR2
Specifications - Installation and Operating Instructions
Series AFR2 Instrument Air Filter Regulator
SPECIFICATIONS
Service: Air only.
Wetted Materials:
Body: Aluminum or SS;
Filter: Polyethylene;
Diaphragm and Valve Seat Plug: Nitrile elastomer.
Max. Supply Pressure: 250 psi (17.2 bar).
Temperature Limits: -4 to 158°F (-20 to 70°C).
Minimum Filtering Size: 5 microns.
Process Connection: 1/4˝ NPT.
Weight: 1.7 lb (0.6 kg); SS models: 3.0 lb (1.4 kg).
The Series AFR2 Instrument Filter Regulator provides clean and
accurate air pressure to instruments, valves and other automatic control
equipment. Constructed of durable materials that will provide long lasting
resistance against corrosion in industrial environments. Available in
aluminum diecast or stainless steel.
Features
• Maintains desirable pressure level, regardless of fluctuations in input
pressure.
• Aluminum or available stainless steel body increases versatility of the
product in different environments.
• 5 micron filter removes unwanted particles in the air.
• Relief function provides safety in the event output pressure exceeds
desired pressure setting.
Installation
Before installation, be sure to be aware of the following:
• Always wear safety equipment and follow safety procedures.
• Input air must be clean and dry.
• Always operate within the capacity range of the regulator.
• Filter must be replaced in a timely matter. Usage varies based on
environment.
• After pressure is set, be sure to tighten adjustment bolt.
OPERATION
Prior to turning on supply air, loosen the adjusting screw until there is no
compression of the range spring. After turning the supply pressure on,
turn the adjusting screw clockwise to increase the outlet pressure.
Pipe Connection
Series AFR2 is used to provide constant supply pressure to positioners,
actuators, solenoid valves etc. If being installed directly onto pipeline, be
sure the pipeline is emptied before connecting the AFR2. In addition,
ensure the pipeline is appropriate for the required capacity.
Pipe Connection with a Bracket
If a bracket is desired for installation, be sure to construct a bracket
according to the AFR2’s dimensions.
A DIV OF DWYER INSTRUMENTS, INC
MICHIGAN CITY, IN USA
AFR2-X
PRESSURE REGULATOR
MAXIMUM SUPPLY 250 PSIG
RANGE 0-XX PSIG
7
[
176.38]
3
[76.20]
2-1/2
[63.50]
TM
DWYER INSTRUMENTS, INC. Phone: [phone] www.dwyer-inst.com
P.O. BOX 373 • MICHIGAN CITY, INDIANA 46360, U.S.A. Fax: [phone] e-mail: [e-mail]
©Copyright 2011 Dwyer Instruments, Inc. Printed in U.S.A. 12/11 FR# RB-443920-00
MAINTENANCE/REPAIR
Upon final installation of the Series AFR2 Instrument Air Filter Regulator,
no routine maintenance is required. The Series AFR2 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.