Installation & Service Instructions:
1R110
R34 & RA34 1/8" & 1/4" Manifold
Miniature Regulators
ISSUED: February, 2010
Supersedes: September, 2008
Doc.# 1R110, EN# 100185, Rev. 3
Pneumatic Division
Richland, Michigan 49083
269-629-5000
WARNING
To avoid unpredictable system behavior that can cause personal injury
and property damage:
• Disconnect electrical supply (when necessary) before installation,
servicing, or conversion.
• Disconnect air supply and depressurize all air lines connected to this
product before installation, servicing, or conversion.
• Operate within the manufacturer’s specified pressure, temperature,
and other conditions listed in these instructions.
• Medium must be moisture-free if ambient temperature is below
freezing.
• Service according to procedures listed in these instructions.
• Installation, service, and conversion of these products must be
performed by knowledgeable personnel who understand how
pneumatic products are to be applied.
• After installation, servicing, or conversion, air and electrical supplies
(when necessary) should be connected and the product tested for
proper function and leakage. If audible leakage is present, or the
product does not operate properly, do not put into use.
• Warnings and specifications on the product should not be covered by
paint, etc. If masking is not possible, contact your local representative
for replacement labels.
!
WARNING
FAILURE OR IMPROPER SELECTION OR IMPROPER USE OF THE
PRODUCTS AND/OR SYSTEMS DESCRIBED HEREIN OR RELATED ITEMS
CAN CAUSE DEATH, PERSONAL INJURY AND PROPERTY DAMAGE.
This document and other information from The Company, its subsidiaries
and authorized distributors provide product and/or system options for further
investigation by users having technical expertise. It is important that you
analyze all aspects of your application, including consequences of any failure
and review the information concerning the product or systems in the current
product catalog. Due to the variety of operating conditions and applications for
these products or systems, the user, through its own analysis and testing, is
solely responsible for making the final selection of the products and systems
and assuring that all performance, safety and warning requirements of the
application are met.
The products described herein, including without limitation, product features,
specifications, designs, availability and pricing, are subject to change by The
Company and its subsidiaries at any time without notice.
EXTRA COPIES OF THESE INSTRUCTIONS ARE AVAILABLE FOR INCLUSION
IN EQUIPMENT / MAINTENANCE MANUALS THAT UTILIZE THESE PRODUCTS.
CONTACT YOUR LOCAL REPRESENTATIVE.
!
WARNING
Product rupture can cause serious injury.
Do not connect regulator to bottled gas.
Do not exceed maximum primary pressure rating.
!
Safety Guide
For more complete information on recommended application
guidelines, see the Safety Guide section of Pneumatic Division
catalogs or you can download the
Pneumatic Division Safety Guide
at: www.parker.com/safety
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Relieving Regulator
Adjustable
Non-Relieving Regulator
Adjustable
Introduction
Follow these instructions when installing, operating, or servicing the
product.
Application Limits
Maximum Inlet Pressure
kPa
PSIG
bar
2068
300
21.0
Ambient Temperature Range: -40°C to 65.5°C (-40°F to 150°F)
Symbols
Installation
1. The regulator should be installed with reasonable accessibility for
service whenever possible - repair service kits are available. Keep pipe
and tubing lengths to a minimum with inside clean and free of dirt and
chips. Pipe joint compound should be used sparingly and applied only
to the male pipe - never into the female port. Do not use PTFE tape to
seal pipe joints - pieces have a tendency to break off and lodge inside
unit, possibly causing malfunction.
2. Install regulator so that media flow is in the direction of arrow (on
R342’s, R344’s & RA4’s), and into port labelled “IN”. Installation must
be upstream (high pressure) side and as close to the devices it is to
service (valve, cylinder, tool, etc.). Mounting may be in any position.
3. Gauge ports are located on both sides of the regulator body for your
convenience. It is necessary to install a gauge or pipe plugs into each
port during installation.
4. For protection against rust, pipe scale, and other foreign matter, install
a filter on the upstream (high pressure) side as close to the regulator
as possible.
Operation
1. Before turning on the media source, disengage the Adjusting Knob
by pulling upward. Turn the Adjusting Knob counterclockwise until
compression is released from the Control Spring. Then turn on media
source and adjust regulator to desired secondary pressure by turning
Adjusting Knob clockwise. This permits pressure to build up slowly,
preventing any unexpected operation of the valve, cylinders, tools, etc.,
attached to the line. Adjustment to desired secondary pressure can be
made only with primary pressure applied to the regulator.
2. To decrease regulator pressure setting, always reset from a pressure
lower than the final setting desired. For example, lowering the secondary
pressure from 550 to 410 kPa (80 to 60 PSIG) is best accomplished by
dropping the secondary pressure to 350 kPa (50 PSIG), then adjusting
upward to 410 kPa (60 PSIG).
Push the Adjusting Knob down to lock the pressure setting.
R342’s & R344’s Reduced Pressure Spring Ranges
“A” Range = 1 – 25 PSI
“B” Range = 2 – 60 PSI
“C” Range = 2 – 125 PSI
RA4’s Diaphragm Function
“C” or “P” = 1 – 25 PSI
“D” or “W” = 2 – 60 PSI
“F” or “R” = 2 – 125 PSI
