Norgren L22 Installation Instructions

DISASSEMBLY

1. Shut off inlet pressure. Reduce pressure in inlet and outlet
lines to zero. Loosen fill plug (4).

2. Disassemble in general accordance with the item numbers
on exploded view. Do not remove the manual drain unless
replacement is necessary. Remove and replace drain
assembly only if drain malfunctions. Do not remove siphon
tube (21). Remove and replace items 22, 23, 24 only if
lubricator malfunctions.

CLEANING

1. Clean parts using warm water and soap.

2. Dry parts. Blow out internal passages in body with clean,
dry compressed air.

3. Inspect parts. Replace parts found to be damaged.

ASSEMBLY

1. Lubricate seals and o-rings with o-ring grease. Apply a
small amount of anti-seize lubricant to full length of
threads on reservoir (9) and sight feed dome (1).

2. Assemble lubricator as shown on the exploded view.

3. Torque Table
Item Nm (Inch-Pounds)
1 (sight feed dome) 3,4 to 4 (30 to 35)
10 (retainer) 0,8 to 1,1 (7 to 10)
15 (nut) 2,3 to 2,8 (20 to 25)

CAUTION

Do not over torque retainer (10) as damage to gauge glass
(13) will occur.

4. Turn reservoir clockwise into body until stop
(approximately 5 turns), then unscrew no more than one
full turn to position sight glass for best visibility. Do not
attempt to turn reservoir when lubricator is pressurized.

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.

Do not substitute any other reservoir for the stainless steel
reservoir furnished with these products.

In lubrication applications some oil mist may escape from
the point of use to the surrounding atmosphere. Users are
referred to safety and health standards for limiting oil mist
contamination and utilization of protecting equipment

Before using these products with fluids other than air, for
nonindustrial applications, or for life-support systems consult
Norgren.

TECHNICAL DATA

Fluid: Compressed air
Maximum pressure: 17 bar (250 psig)
Operating temperature: -34° to +80°C (-30° to

+175°F) *

* Air supply must be dry enough to avoid ice

formation at temperatures below +2°C (+35°F).

Start point (i.e. minimum flow required for lubricator

operation) at 6,3 bar (90 psig) inlet pressure:

1,7 dm

3

/s (3.5 scfm)

Typical flow with 6,3 bar (90 psig) inlet pressure and

0,5 bar (7 psig) pressure drop:

48 dm3/s (102 scfm)
Nominal bowl size: 0,2 litre (7 fluid ounce)
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 and Bowl: Stainless steel
Reservoir sight glass and window in sight feed

dome: Pyrex

Elastomers: Nitrile

REPLACEMENT ITEMS

Service kit (items circled on

exploded view) ....................................L22-100RK

Gasket kit (items 2, 3, 5, 8) ...........................L22-GK

Bowl repair kit (items 8, 11, 12, 13)..............5860-RK

Wall mounting bracket ..............................18-001-962

INSTALLATION

1. Shut-off air pressure. Install lubricator in air line -

● vertically (reservoir down),

● with air flow in direction of arrow on body,

● downstream of filters and regulators

● upstream of cycling valves,

● as close as possible to the device being lubricated. Not

more than 5,2m (15 feet) from the device, and at the
same height or higher than the device.

2. Connect piping to proper ports using pipe thread sealant

on male threads only. Do not allow sealant to enter
interior of unit.

3. Before pressurizing, turn bowl clockwise into body until

stop (approximately 5 turns), then unscrew no more than
one full turn to position sight glass for best visibility.

RECOMMENDED LUBRICANTS

Use a good quality, light, misting type oil for compressed
air tools. See Norgren publication N/AL.8.900.935.

FILL RESERVOIR

Remove fill plug (4), add oil, and reinstall fill plug. Fill plug
can be removed and oil added without shutting off air
pressure to the lubricator. Oil level must always be visible
in lens on metal reservoir. DO NOT OVERFILL.

NOTE: Oil fill plug (4) seals easily. Tighten finger-tight only.

ADJUSTMENT

1. Turn on system pressure.

2. Adjust lubricator drip rate only when there is a constant

rate of air flow thru the lubricator. Monitor drip rate thru
sight feed dome (1).

3. Determine the average rate of flow thru the lubricator.

Turn drip rate adjusting screw on top of sight feed dome
to obtain one drop per minute for each 5 dm

3

/s (10

scfm). For example, if the average flow is 19 dm

3

/s (40
scfm), set the drip rate at 4 drops per minute. Turn
adjusting screw counterclockwise to increase and
clockwise to decrease the drip rate.

4. Monitor the device being lubricated for a few days
following initial adjustment. Adjust the drip rate if the oil
delivery at the device appears either excessive or low.

L22

Installation & Maintenance

Instructions

Stainless Steel Oil-Fog Lubricator

L22 - ★0★ - OP★★

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

†

Reservoir

8....Closed bottom or plugged open bottom

D....Open bottom with manual drain

IM-520.400

(5/02)

Replaces NIP-345

© Norgren 2002

Option

0....Closed bottom reservoir

5....Open bottom reservoir with plug or manual drain

7....Special ported 3/4-16 UNF equipped with

open bottom reservoir with plug or manual drain

†

† Special ported 3/4-16 UNF model: L22-607- OP x S. Reservoir type indicated in position 9 of model number.

a subsidiary of IMI plc

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