Norgren R24S Series - Manual

4.Use retaining ring pliers to remove the top plate (6)
and retaining ring (7). Pull cap (8) and o-ring (9) from
body.
5.Unscrew socket head screw (1), then remove button
(2), spring (3), knob (4), tumblers (5), coupling (10),
and o-ring (11).
6. Remove, as an assembled unit, the adjusting screw
(12) with upper and lower piston assemblies (items
13 thru 19). Remove spring (20).
7. Unscrew the adjusting screw (12), then separate
upper and lower piston assemblies (items 13 thru
19). The adjusting screw has left hand threads.
Make sure o-ring (18) remains attached to the lower
piston (17). If not, retrieve it from inside the upper
piston (13).
8. Unscrew bottom plug (21) to gain access to the
parts (22 thru 33) located in the lower portion of the
body.
CLEANING
1.Clean parts with warm water and soap.
2.Rinse and dry parts. Blow out internal passages in
body (34, 35) with clean, dry compressed air.
3.Inspect parts. Replace those found to be damaged.
ASSEMBLY
1. Lubricate o-rings, o-ring sealing surfaces, and the
adjusting screw threads (12) with a small amount of
good quality o-ring grease.
2. Assemble the lower piston (16*, 17, 18,19), the
regulating spring (15), and upper piston (13, 14),
then turn the adjusting screw (12) into the assembly
until the tip of the screw is flush with the bottom of
the lower piston (17). The adjusting screw has left
hand threads. Place spring (20) in position in the
body, then place the upper and lower piston
assembly (items 12 thru 19) in the body.
3. Insert coupling (10) and o-ring (11) into cap (8).
Place tumblers (5), knob (4), spring (3), and button
(2) in position and secure with screw (1). Make
sure button (2) is installed with the large end
(marked A) up. Place o-ring (9) in position on the
cap (8), then place the cap and knob assembly
(items 1 thru 5, and 8 thru 11) in body, making sure
coupling (10) engages the adjusting screw (12).
4. Use retaining ring pliers to install retaining ring (7),
then install and top plate (6).
WARNING
Make sure retaining ring (7) is fully seated in the
groove in the body.
5. Install the lower section parts (items 21 thru 33)
into body (34 or 35).
6. Torque Table
Item Inch-Pounds (Nm)
21 (Bottom plug) 20 to 30 (2.3 to 3.4)
1 (Screw) 3 to 4 (0.3 to 0.5). Screw head
must not extend more than
0.050" (1.3 mm) above top of
button (2).
7. Set the R24 for normal operation as described in
paragraph 1-2, page 2 before it is returned to
service.
* Item 16, washer, is used only with 1/4", 3/8", and
1/2" ported R24 regulators manufactured from
September, 1993 to March, 1994. The design of the
piston (17) was changed in early 1994, and washer
(16) was eliminated. The washer support ribs on the
early pistons (Detail A of exploded view) are
recessed approximately 0.188" (5mm) to
accommodate washer (16). The support ribs on
current pistons are recessed approximately 0.063
(2mm). Discard washer (16) when replacing the
early piston with a current piston.
6
7
8
9
14
13
11
10
12
1
4
15
37
34
36
20
38
17
19
35
28
29
33
23
21
32
30
31
22
29
18
24
25
26
27
2
3
5
16
A
0.188"
(5mm)
17
a subsidiary of IMI plc
IM-414.210.01 (2/02)
Replaces NIP-243
© Norgren 2002
TECHNICAL DATA
Fluid: Compressed air
Maximum inlet pressure: 300 psig (20 bar)
Operating temperature: 0° to +150°F (-20° to +80°C)
Air supply must be dry enough to avoid ice
formation at temperatures below +35°F (+2°C).
Typical flow at 150 psig (10 bar) inlet pressure, 90 psig
(6.3 bar) set pressure, and 15 psig (1 bar) droop
from set:
1/2" ports: 200 scfm (94 dm 3 /s)
1-1/4" ports: 700 scfm (330 dm 3 /s)
Maximum bleed rate at 50 psig (3.5 bar) outlet
pressure: 0.031 scfm (0.015 dm 3 /s). Maximum bleed
rate occurs under dead-end (no flow) conditions.
Port sizes:
Main Gauge
1/4" 1/4"
3/8" 3/8"
1/2", 3/4", 1", 1-1/4" 1/2"
Thread type: PTF, ISO G, or ISO Rc
Materials:
Body, top cap: Zinc
Main valve, adjusting screw: Brass
Pilot valve, relief valve, bottom plug: Acetal
Elastomers: Nitrile
REPLACEMENT ITEMS
Service kit - 1/4", 3/8" 1/2" ported regulators (Items 9,
11, 12, 14, 18, 19, 22 thru 26, 28, 29, 33).....5292-52
Service kit - 3/4", 1", 1-1/4" ported regulators (Items 9,
11, 12, 14, 18, 19, 23 thru 26, 30 thru 33) ....5292-53
PANEL MOUNTING DIMENSIONS
Panel mounting hole diameter: 1.26" (32 mm)
Maximum panel thickness: 0.12" (3 mm)
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 (4) counterclockwise until knob stops.
2.Apply inlet pressure, then turn adjustment (4)
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.
4. If desired, a maximum or minimum outlet pressure
adjustment limit may be set. See page 2 for
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 (4) fully counterclockwise.
WARNING
Prior to performing step 4, make certain air
pressure upstream and downstream of the R24 is
zero psi.
R24
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 Purpose Regulator
Adjustable Pressure Limits - High Relief Flow
R24 - ★★★ - ★★★★
Thread Form
A....PTF
B....ISO Rc taper
G....ISO G parallel Port
2 ....1/4"
6 ....3/4"
3 ....3/8 8 ....1"
4 ....1/2" A....1-1/4"
Spring (Outlet Pressure Range) *
C....5 to 30 psig (0.3 to 2 bar)
F ....5 to 60 psig (0.3 to 4 bar)
L ....10 to 125 psig (0.7 to 8 bar)
S....10 to 250 psig (0.7 to 17 bar) Type
R....Relieving piston Gauge
G....With
N....Without Option
0 ....Not applicable Adjustment Type
0 ....Knob