Norgren N17 User Manual

R17

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 or 3) fully counterclockwise to remove
all force on regulating spring (7).

4. Disassemble in general accordance with the item numbers
on exploded view.

CLEANING

1. Clean parts with warm water and soap. Do not submerge
knob type bonnets (1) in solution, as lubricant will be
removed.

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, valve stem (15), valve bore in bottom
plug (12), adjusting screw tip and adjusting screw threads
inside bonnet (1, 6), threads on bonnets (1, 6) and bottom
plug (12) 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 in Nm (Foot-Pounds)
1, 6 (Bonnets) 41 to 48 (30 to 35)
12 (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 +80°C (-30° to +175°F)
* Air supply must be dry enough to avoid ice formation at

temperatures +2°C (+35°F).
Typical flow at 10 bar (150 psig) inlet pressure, 6,3 bar
(90 psig) set pressure, and a droop of 1 bar (15 psig) from
set: 227 dm

3

/s (480 scfm)

Gauge ports:

1/4" PTF with PTF main ports

Rc1/4 with ISO Rc and ISO G main ports
Materials:

Body: Aluminum
Bonnet: Aluminum
Bottom plug: Acetal
Valve: Aluminum and nylon
Elastomers: Nitrile

REPLACEMENT ITEMS

Service kit (includes items circled on exploded view)

Relieving...............................................................5578-02

Non-relieving........................................................5578-01

Tamper resistant seal wire .......................................2117-01

PANEL MOUNTING DIMENSIONS

Panel mounting hole diameter: 58 mm (2.28")
Panel thickness: 2 to 4 mm (0.06" to 0.16")

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 or 3) counterclockwise to remove all force
on regulating spring (7).

2. Apply inlet pressure, then turn adjustment (1 or 3)

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. KNOB ADJUSTMENT. Push lockring on knob down to

lock pressure setting. Pull lockring up to release. Install
tamper resistant wire (see Replacement Items) to make
setting tamper resistant.

5. T-BAR ADJUSTMENT. Tighten lock nut (4) lock pressure

setting.

© Norgren 2001

IM-341.200

(5/01)

Pressure Regulator

R17 - ★★★ - ★★★★

Thread Form

A....PTF

B....ISO Rc taper

G....ISO G parallel

Port

6....3/4"

8....1"

A....1-1/4"

B....1-1/2"

Relief Type

R....Relieving

N....Non relieving

Gauge

G....With

N....Without

Adjustment Type

0....Knob

1....T-Handle

* 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.

Spring (Outlet Pressure Range) *

E....0,3 to 3,5 bar (5 to 50 psig)

L....0,3 to 8,5 bar (5 to 125 psig)

S....0,7 to 17 bar (10 to 250 psig)

Option

0....Not applicable

2

1

7

8

9

18

16

15

17

14

13

12

3

4

6

5

10

11

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