Norgren R22 Installation Instructions
DISASSEMBLY
1. Regulator can be disassembled without removal from air
line.
2. Shut off inlet pressure. Reduce pressure in inlet and outlet
lines to zero.
3. Turn adjustment (1) fully counterclockwise to remove all
force on regulating spring (5).
4. Disassemble in general accordance with the item numbers
on exploded view.
CLEANING
1. Clean parts with warm water and soap
2. Rinse and dry parts. Blow out internal passages in body
with clean, dry compressed air.
3. Inspect parts. Replace those found to be damaged.
ASSEMBLY
1. Lubricate o-rings, recess in upper spring rest (4), and the
valve bore in bottom plug (10) with a light coat of good
quality o-ring grease.
2. Lubricate threads on adjusting screw (1), bonnet (3), and
bottom plug (10) with a small amount of anti-seize
compound.
2. Assemble the unit as shown on the exploded view.
3. Torque Table
Item Nm (Foot-Pounds)
1 (Bonnet) 88 to 92 (65 to 68)
10 (Bottom plug) Hand tight
WARNING
These products are intended for use in industrial
compressed air systems only. Do not use these products
where pressures and temperatures can exceed those listed
under Technical Data.
If outlet pressure in excess of the regulator pressure
setting could cause downstream equipment to rupture or
malfunction, install a pressure relief device downstream of
the regulator. The relief pressure and flow capacity of the
relief device must satisfy system requirements.
The accuracy of the indication of pressure gauges can
change, both during shipment (despite care in packaging)
and during the service life. If a pressure gauge is to be used
with these products and if inaccurate indications may be
hazardous to personnel or property, the gauge should be
calibrated before initial installation and at regular intervals
during use.
Before using these products with fluids other than air, for
non industrial applications, or for life-support systems
consult Norgren.
TECHNICAL DATA
Fluid: Compressed air
Maximum pressure: 20 bar (300 psig)
Operating temperature*: -34° to +65°C (-30° to +150°F)
* Air supply must be dry enough to avoid ice formation at
temperatures below +2°C (+35°F).
Typical flow with 10 bar (150 psig) inlet pressure, 6,3 bar
(90 psig) set pressure and 1 bar (15 psig) droop from
set: 50 dm
3
/s (106 scfm)
Gauge ports: 1⁄4", thread form same as main ports
Materials - Metallic parts are NACE (National Association of
Corrosion Engineers) approved metals meeting hardness
requirements. NACE Recommendation MR-01-1975 (1980
Revision) “Material requirement - sulfite stress cracking
resistant metallic material for oil field equipment”.
Body, bonnet, adjusting screw, valve: 316 stainless steel
Regulating spring: Stainless steel
Valve spring: Inconel
Elastomers: Nitrile
REPLACEMENT ITEMS
Service kit (includes items circled on exploded view)
Relieving............................................................R22-100R
Non-relieving...................................................R22-100NR
PANEL MOUNTING DIMENSIONS
Panel mounting hole diameter: 42 mm (1.65")
Maximum panel thickness: 9,5 mm (0.37")
INSTALLATION
1. Shut off air pressure. Install regulator in air line -
● with air flow in direction of arrow on body.
● upstream of lubricators and cycling valves.
● as close as possible to the device being serviced.
● at any angle.
2. Connect piping to proper ports using pipe thread sealant
on male threads only. Do not allow sealant to enter
interior of regulator.
3. Install a pressure gauge or plug the gauge ports. Gauge
ports can also be used as additional outlets for regulated
air.
4. Install a Norgren general purpose filter upstream of the
regulator.
ADJUSTMENT
1. Before applying inlet pressure to regulator, turn
adjustment (1) counterclockwise to remove all force on
regulating spring (5).
2. Apply inlet pressure, then turn adjustment clockwise to
increase and counterclockwise to decrease pressure
setting.
3. Always approach the desired pressure from a lower
pressure. When reducing from a higher to a lower
setting, first reduce to some pressure less than that
desired, then bring up to the desired pressure.
NOTE
With non-relieving regulators, make pressure
reductions with some air flow in the system. If
made under no flow (dead-end) conditions, the
regulator will trap the over-pressure in the
downstream line.
4. Tighten locknut (2) to lock pressure setting.
R22
Installation & Maintenance
Instructions
* Outlet pressure can be adjusted to pressures in excess of, and less than, those specified. Do not use these units to control pressures outside of the specified ranges.
† Special ported 3/4-16 UNF model: R22-607- x
N x S. Diaphragm type and spring are indicated in positions 7 and 9 of model number.
Spring (Outlet Pressure Range) *
F ....0,3 to 4 bar (5 to 60 psig)
M...0,3 to 10 bar (5 to 150 psig)
S....0,7 to 17 bar (10 to 250 psig)
Diaphragm
R....Relieving
N....Non relieving
Gauge
N....Without
IM-520.200
(5/02)
Replaces NIP-237
© Norgren 2002
Stainless Steel Regulator
R22 - ★★★ - ★★★★
Thread Form
A....PTF
D....ISO G
S....Special ported
3/4-16 UNF
†
Port
4....1/2"
6....Special ported
3/4-16 UNF
†
Option
0....Standard
1....Oxygen degreased
Option
1....T-bar adjustment
5....Plastic handwheel
7....Special ported 3/4-16 UNF
equipped with T-bar adjustment
†
12
11
10
1
2
3
4
5
6
7
8
9
15
13
14
a subsidiary of IMI plc
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