Norgren B74G Series Installation Instructions Manuel d'utilisateur télécharger pdf

B74G

Installation & Maintenance

Instructions

Filter/Regulator

B74G - ★★★ - ★★★ - ★★★

Thread Form

A....PTF

B....ISO Rc taper

G....ISO G parallel

INSTALLATION

1. Shut off air pressure. Install filter/regulator in air line -

● vertically (bowl down),

● with air flow in direction of arrow on body,

● upstream of lubricators and cycling valves,

● as close as possible to the device being serviced.

2. Connect piping to proper ports using pipe thread sealant

on male threads only. Do not allow sealant to enter

interior of unit.

3. Push bowl, or bowl with guard, into body and turn fully

clockwise before pressurizing.

4. Flexible tube with 3mm (0.125") minimum I.D. can be

connected to the automatic drain. Avoid restrictions in

the tube.

5. Install a pressure gauge or plug the gauge ports. Gauge

ports can also be used as additional outlets for regulated

air.

ADJUSTMENT

1. Before applying inlet pressure to filter/regulator, turn

adjustment (1 or 7) counterclockwise to remove all force

on regulating spring.

2. Apply inlet pressure, then turn adjustment (1 or 7)

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 filter/regulators, make pressure

reductions with some air flow in the system. If

made under no flow (dead-end) conditions, the

filter/regulator will trap the over-pressure in the

downstream line.

4. KNOB ADJUSTMENT. Push knob down to lock pressure

setting. Pull knob up to release. Install tamper resistant

cover (see Replacement Items) to make setting tamper

resistant.

5. T-BAR ADJUSTMENT. Tighten lock nut (8) to lock

pressure setting.

SERVICING

1. Open manual drain to expel accumulated liquids. Keep

liquids below baffle (51).

2. Clean or replace filter element when dirty.

DISASSEMBLY

1. Filter/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 7) fully counterclockwise.

4. Remove bowl - push into body and turn

counterclockwise.

5. Disassemble in general accordance with the item

numbers on exploded view. Do not remove the drains

unless replacement is necessary. Remove and replace

only if they malfunction.

CLEANING

1. Clean plastic bowl (25, 42) with warm water only. Clean

other parts with warm water and soap.

2. Rinse and dry parts. Blow out internal passages in body

(16) with clean, dry compressed air. Blow air through

filter element (52) from inside to outside to remove

surface contaminants.

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

Replace plastic bowl with a metal bowl if plastic bowl

shows signs of cracking or cloudiness.

TECHNICAL DATA

Fluid: Compressed air

Maximum pressure:

Transparent bowl: 10 bar (150 psig)

Metal bowl: 17 bar (250 psig)

Operating temperature*:

Transparent bowl: -20° to +50°C (0° to +125°F)

Metal bowl: -20° to +80°C (0° to +175°F)

* Air supply must be dry enough to avoid ice formation at

temperatures below +2°C (+35°F).

Particle removal: 5 µm, 25 µm, or 40 µm filter element

Air quality: Within ISO 8573-1, Class 3 and Class 5

(particulates)

Typical flow with 10 bar (150 psig) inlet pressure, 6,3 bar

(90 psig) set pressure and 1 bar (15 psig) droop from

set: 100 dm

/s (212 scfm)

Nominal bowl size: 0,2 litre (7 fluid ounce)

Manual drain connection: 1/8"

Automatic drain connection: 1/8"

Automatic drain operating conditions (float operated):

Bowl pressure required to close drain: Greater than 0,3

bar (5 psig)

Bowl pressure required to open drain: Less than 0,2 bar

(3 psig)

Minimum air flow required to close drain: 1 dm

(2 scfm)

Manual operation: Depress pin inside drain outlet to

drain bowl

Gauge ports:

1⁄4 PTF with PTF main ports

Rc1/4 with ISO Rc main ports

Rc1/8 with ISO G main ports

Materials:

Body: Aluminum

Bonnet: Aluminum

Valve: Brass

Bowl:

Transparent with guard: Polycarbonate, steel guard

Metal: Aluminum

Metal bowl liquid level indicator lens: Transparent

nylon

Element: Sintered polypropylene

Elastomers: Neoprene and nitrile

REPLACEMENT ITEMS

Service Kit (includes items circled on exploded view):

Relieving.............................................................4383-700

Nonrelieving .......................................................4383-701

Liquid level lens kit (34, 36, 37, 38) ......................4380-050

Filter element, 5µm, red speckles (52).....................4338-04

Filter element, 25µm, blue speckles (52) .................4338-07

Filter element, 40µm, no speckles (52)....................4338-05

Manual drain (18, 19, 20) (28, 29, 30) ......................619-50

Automatic drain (21, 22, 23) (31, 32, 33)

1/8 NPT outlet ......................................................3000-10

G 1/8 outlet ..........................................................3000-97

Tamper resistant cover (knob adjustment only).......4355-51

PANEL MOUNTING DIMENSIONS

Panel mounting hole diameter: 52 mm (2.06")

Panel thickness: 2 to 6 mm (0.06" to 0.25")

Port

3....3/8"

4....1/2"

6....3/4"

* 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) *

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)

Gauge

G....With

N....Without

Diaphragm

N....Non-relieving

R....Relieving

Adjustment

K....Knob

T....T-bar

Drain

A....Automatic

Q....Manual, 1/4 turn

Bowl

D....Metal with liquid level indicator

P....Transparent with guard

Element

1....5 µm

2....25 µm

3....40 µm

Current Metal Bowl

Early Plastic Bowl Early Metal Bowl

Current Plastic Bowl

Used on

models

prior to

1998

a subsidiary of IMI plc

IM-200.300.01

(9/98)

Supersedes 4/98

1 2

Résumé du contenu

Page 1 - B74G - ★★★ - ★★★ - ★★★

B74GInstallation & Maintenance InstructionsFilter/RegulatorB74G - ★★★ - ★★★ - ★★★Thread FormA...PTFB...ISO Rc taperG...ISO G parallelINSTALLATI

Page 2

ASSEMBLY1. Lubricate the following items with o-ring grease.4 (Thrust washer) - outer circumference and both sides.5, 7 (Adjusting screw) - threads an

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Norgren B74G Series Installation Instructions Manuel d'utilisateur

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