Norgren 11-002 Installation Instructions

11-002

Installation & Maintenance

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) counterclockwise to remove all force
on regulating spring (6).

4. Disassemble in general accordance with the item numbers
on exploded view. Do not remove valve seat (14) unless
replacement is necessary. Remove o-ring (8) using a hook
shaped tool, taking care not to damage o-ring seating
surfaces and valve seat.

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, adjusting screw threads and tip (1),
center bore in bottom plug (9), valve stem and body (13),
with a light coat of good quality o-ring grease.

2. Assemble the unit as shown on the exploded view.

3. Torque Table
Item Torque Inch-Pounds (Nm)
14

(Valve seat - if removed)

15 to 20 (1.7 to 2.3)
9 (Bottom plug) Hand tighten
3 (Screw) 45 to 55 (5.1 to 6.2) in a

diagonal sequence

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: 400 psig (28 bar)
Regulator type: Relieving or non-relieving diaphragm
Operating temperature: -30 to +175°F (-34° to +80°C). Air

supply must be dry enough to avoid ice formation at

temperatures below +35°F (+2°C).
Main port size: 1/4", 3/8", or 1/2"
Main port thread form: PTF, ISO Rc, or ISO G
Gauge ports:

1⁄8 PTF with PTF main ports
Rc1/8 with ISO G and ISO Rc main ports

Outlet pressure adjustment ranges:**

5 to 50 psig (0.3 to 3.5 bar)

5 to 125 psig (0.3 to 8.5 bar)

5 to 250 psig (0.3 to 17 bar)
** 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.
Typical flow with 150 psig (10 bar) inlet pressure, 90 psig
(6.3 bar) set pressure, and a 15 psig (1 bar) droop from
set:

1/4" and 3/8" ports: 110 scfm (52 dm

3

/s)

1/2" ports: 260 scfm (123 dm3/s)
Materials:

Body: Zinc

Bonnet: Aluminum

Valve: Brass and nitrile

Valve seat: Brass

Elastomers: Nitrile

Bottom plug:

1/4" and 3/8" ports: Brass
1/2" ports: Nylon

REPLACEMENT ITEMS

Service kits (includes items circled on exploded view)
1/4" and 3/8" Ported Regulators:

Relieving.................................................................529-03

Non-relieving..........................................................529-01

1/2" Ported Regulators:

Relieving.................................................................535-03

Non-relieving..........................................................535-01

PANEL MOUNTING DIMENSIONS - Panel mounting
requires optional factory installed threaded bonnet.

Panel mounting hole diameter: 1.06" (27 mm)
Panel thickness: 0.2" to 0.38" (5 to 10 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 (1) counterclockwise to remove all force on
regulating spring (6).

2. Apply inlet pressure, then turn adjustment (1) 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 lock nut (2) to lock pressure setting.

© Norgren 2002

IM-410.207

(2/02)

Replaces NIP-202

Pressure Regulator

a subsidiary of IMI plc

3

16

17

1

2

4

5

6

7

8

18

15

14

13

12

11

10

9