Wilkerson RB3 Quick guide

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Relieving Regulator
Adjustable Non-Relieving Regulator Adjustable
Introduction
Follow these instructions when installing, operating, or servicing
the product.
Application Limits
These products are intended for use in general purpose
compressed air systems only.
Operating Pressure:
kPa PSIG bar
Maximum Inlet Pressure 2068 300 21.0
OperatingTemperature Range: 4°C to 51,7°C (40°F to
125°F)
ANSI 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 air flow is in the direction of arrow.
Installation must be upstream (high pressure) side and as
close to the devices it is to service (valve, cylinder, tool,
etc.) as possible.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 air supply:
1A. On RB3, disengage the adjusting knob by pulling upward.
Turn adjusting knob counterclockwise until the
compression is released from the pressure control spring.
1B. On tamper resistant model, pressure is preset. Do not
attempt to adjust.
2. Then turn on air supply 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.
3. 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).
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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 MANUALSTHAT UTILIZE
THESE PRODUCTS. CONTACT YOUR LOCAL REPRESENTATIVE.
Installation and Service Instructions
84-036-000
RB3 Brass Regulators
ISSUED: April, 2002
Supersedes: April, 2002
EN# 02026877, Rev 2
Englewood, CO 80110

Service
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CAUTION: SHUT OFF AIR SUPPLY and exhaust the
primary and secondary pressure before disassembling
regulator unit. (Turning the knob counterclockwise
reduces regulator’s setting, but does not vent
downstream pressure on non-relieving regulators.)
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CAUTION: Lubricate parts with a mineral based
grease / oil or silicone grease. DO NOT use synthetic
grease / oils such as esters.
A. Servicing the Bonnet and Diaphragm Assembly-
1A. On RB3, disengage the adjusting knob by pulling upward.
Turn adjusting knob counterclockwise until the
compression is released from the pressure control spring.
1B. On tamper resistant models, do not adjust the unit. Use
caution when removing the bonnet.
2. Unscrew the threaded bonnet assembly. Next,
disassemble, clean, and carefully inspect parts for wear
and/or damage. If replacement is necessary, use parts
from service kits.
3. Install diaphragm assembly into body.Then install bonnet
assembly to body. See Figure 1 for torque value.
B. Servicing the Poppet Assembly-
1. Exhaust system air pressure as previously described.Then
remove bottom cap by unscrewing it from body. Next,
remove cap and o-ring, spring and poppet assembly.
2. Next, clean, and carefully inspect parts for wear and/or
damage. If replacement is necessary, use parts from
service kits.
RB3 Brass Regulators 84-036-000
3. Lubricate o-ring and sliding surfaces using grease supplied
with service kit.
4. Lubricate cap’s o-ring and install it in o-ring groove on
cap. Then screw cap into body until the cap bottoms out
in body. See Figure 1 for torque value.
5. Turn on air supply and adjust to desired secondary
pressure as described in the Operation section.
Turn on air pressure and check regulator for leakage.If leakage
occurs, DO NOT OPERATE — conduct repairs again.
If you have questions concerning how to service this unit,
contact your local authorized dealer or your customer service
representative.
Service Kits Available
Description RB3 Brass
Bonnet Assembly RRP-96-821
Tamper Resistant Kit RRP-96-822
Knob Only Kit RRP-96-823
Regulator Repair Kit
(Relieving) RRP-96-824
Regulator Repair Kit
(Non-Relieving) RRP-96-825
Lightly grease with provided lubricant.
Inspect for nicks, scratches, and surface imperfections.If present,
reduced service life is probable and future replacement should
be planned.
Clean with lint-free cloth.
Figure 1
RB3 Regulator
(Non-Relieving Shown)
Knob
Adjusting Screw
Drive Nut
Control Spring
Spring,
Poppet Return
O-Ring,
Bottom Cap
Diaphragm Assembly
(Includes Upper Diaphragm Plate
& Lower Diaphragm Plate
Bottom Cap
Torque:
3.5 to 5.1 Nm (35 to 45 in.lb.)
Poppet
Assembly
Body
Bonnet - Torque:
4.5 to 5.6 Nm (60 to 70 in.lb.)