Parker Pneumatic P3N Series Quick guide

Application Limits
These products are intended for use in general purpose
compressed air systems only.
Operating Pressure: kPa psig bar
Maximum Inlet Pressure 1720 250 17.2
Ambient Temperature Range: 0°C to 80°C (32°F to 175°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
usePTFE 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.). Mounting may be in any position.
3. Gauge ports are located on both sides of the regulator
body. 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.
†
Installation and Service Instructions:
Form 2R300P
1" P3N Series Regulator
ISSUED: October, 1999
Supersedes: None
NPR# 1704
Operation
1. Before turning on the air supply, turn the adjusting knob or
“T” handle counterclockwise until compression is released
from the control spring.Then turn on air supply and adjust
regulator to desired secondary pressure by turning
adjusting knob/handle 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.
On the “T” handle units, tighten the hex nut against the
bonnet to lock setting.
!
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 Parker Hannifin Corporation, 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 system 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 Parker
Hannifin Corporation and its subsidiaries at any time without notice.
EXTRA COPIES OFTHESE INSTRUCTIONS ARE AVAILABLE FOR INCLUSION
IN EQUIPMENT / MAINTENANCE MANUALSTHAT UTILIZETHESE PRODUCTS.
CONTACTYOUR LOCAL REPRESENTATIVE.
Pneumatic Division North America
Richland, Michigan 49083
Pneumatic
!
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.
Relieving Regulator
Adjustable Non-Relieving Regulator Adjustable

O-Ring
Body
Poppet
Assembly
Piston
Poppet
Return
Spring
Seal
O-Ring
Lipseal
Control
Spring
Bonnet
T Handle Adjusting Knob
Mounting
Screws (4)
Torque:
1.5 to 2.0 Nm
(13 to 18 in.lb.)
Screw
Torque:
1.15 to 1.45 Nm
(10 to 13 in.lb.)
Cap
1
2
3
5
4
6
7
Service
!
CAUTION:
SHUT OFF AIR SUPPLY and exhaust the primary and
secondary pressure before disassembling regulator unit.
(Turning the knob/handle counterclockwise reduces
regulator’s setting, but does not vent downstream pressure
on non-relieving regulators.)
!
CAUTION:
Lubricate parts with a mineral based oil/grease or silicone
grease.DO NOT use synthetic oils/greases such as esters.
A. Use the following procedure to service bonnet assembly and
components.
1. Disengage the adjusting knob by pulling upward. Turn
adjusting knob counterclockwise until the compression is
released from the pressure control spring.
2. Disassemble and service as required. Refer to picture for
details.
3. Reassemble Unit.Refer to picture for details.
1" P3N Series Regulators 2R300P
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.
B. Servicing the Poppet Assembly
1. Disengage the adjusting knob by pulling upward. Turn
adjusting knob counterclockwise until the compression is
released from the pressure control spring.
2. Remove bottom cap:
a) Remove screw
b) Turn cap and pull down counter clockwise.
3. Disassemble parts and services as required.Refer to picture
for details.
4. Reassemble unit. Refer to picture for details.
Turn on air pressure and check regulator for leakage. If leakage
occurs, DO NOT OPERATE — conduct repairs again.
Adjust to desired secondary pressure as described in the
operation section.
If you have questions concerning how to service this unit, contact
your local authorized dealer or your customer service
representative.
Service Kits Available
Description Kit Contains
Number Items
Regulator (Standard) (1) Piston, (2) Lipseal,
Repair Kit (Relieving) P3NKA00RR (3) O-Ring,
Repair Kit (Non-Relieving) P3NKA00RN (4) Poppet Assembly,
(5) O-Ring
(6) Poppet Return Spring,
and (7) Seal
Mounting Bracket Kit P3NKA00MW Not Shown
Gauges:
Low Pressure P781641 Not Shown
0 to 410 kPa (0 to 60 PSIG)
Standard Pressure P781642 Not Shown
0 to 1100 kPa (0 to 160 PSIG)
High Pressure P781643 Not Shown
0 to 2070 kPa (0 to 300 PSIG)