Raimondi Pressure seal filters IOM Owner's manual

Brand: Raimondi

Model: Pressure seal filters IOM

Type: Owner's manual

RAIMONDI PRESSURE SEAL FILTERS

InstallatIon and maIntenance InstructIons

INTRODUCTION

This manual provides guidelines to be observed

for the following operations:

• storage

• Installation into the pipeline

• Maintenance

• Preservation

The manual is intended for the following

personnel/staff:

• Plant warehouse staff

• Installers

• Maintenance engineers

1 FILTER STORAGE AND PRESERVATION

BEFORE INSTALLATION: VERIFICATION AND

INSPECTION

On arrival of materials, it is recommended to:

• Check the integrity of the case/packing.

• Open the case and verify that there is no

damage due to transportation.

• Do not open the barrier bag (if existing).

• Verify that the contents are those indicated

on the packing list.

• Store the filters (unless damaged) in their

original packaging.

Please observe the following:

1. Do not place packages directly on the

ground.

2. Do not expose packages to direct

sunlight or adverse weather conditions.

3. Check the packages every two months.

4. Substitute the silica gel every six

months. This is not applicable in the

case of barrier bag packages.

2 HANDLING

During handling operations, the filters must be

lifted and handled as indicated in Figure 1 by

using lifting equipment (fasteners, hooks, etc.)

which must be sized and selected on the basis

of the filter weight (indicated in the drawings).

Use the filters’ lifting lugs and eyebolts for all

handling and lifting operations.

WARNING

Please read the warning notices carefully and

follow the instructions. These serve to guarantee

your safety and to prevent damage to people and

property.

WARNING

Do not use any lifting straps that are either

damaged or of inadequate/unknown size.

In addition to the instructions in this manual,

specific plant safety regulations must always

be followed.

It is strongly recommended that this manual

is read carefully and entirely, before starting

any maintenance activity, in order to optimize

the intervention timing, and to ensure that

suggested spare parts and gaskets are

available in the event of valve assembly.

For installation and maintenance operations no

specific equipment or tools are required, other

than those usually available in the plant.

Emerson is always at the Customer’s disposal

for any further technical information.

Before installation these instructions must be fully read and understood

RAIMONDI PRESSURE SEAL FILTERS

InstallatIon and maIntenance InstructIons

3 INSTALLATION

For correct operation, filters must be installed

and oriented as indicated in Figure 2. A different

installation may result in a faulty performance

and/or rapid product deterioration.

The following operations must be performed

only immediately before the installation:

1. Remove the protection caps from the end

faces.

2. Check the upstream and downstream

pipeline sections. Make sure that there are

no solid particles or any other kind of dirt or

debris inside. If necessary, clean carefully

by using an air line.

3. Pay attention to the flow direction.

WARNING

Before starting filter installation, please verify

that: the valve class is suitable for the required

operating pressure, and the materials of

construction are suitable for the intended service

(type of process fluid).

WARNING

Protect eyes with appropriate welding masks or

goggles during all welding operations.

WARNING

In order to avoid any damage, the differential

pressure must never exceed 1.5bar.

WARNING

Verify that the flow direction of the line

corresponds to the flow direction indicated by

the arrow on the filter body.

Flanged version

Position the filter between the two flanges of

the pipe and put the seal gasket between the

filter flange and the pipe flange. Ensure that it

is correctly positioned. Mount the filter to the

pipe with bolts, which must be cross-tightened.

Progressively reach the requested torque

indicated by the engineering company that

designed the plant.

Butt-weld version

Position the filter and verify its alignment with

the pipe. Proceed with the welding operation in

accordance with the procedure indicated by the

engineering company that designed the plant.

In general, the first weld layer will be made

with TIG, while the following layers will be made

with an appropriate electrode for the filter body

material.

General notes

In case that one end of the wire is not

connected to the line for a period of time longer

than half a day, the open end must be properly

closed and sealed in order to prevent entry of

dirt or debris.

Check that there is enough space to easily

remove the cover and the filter.

Upstream and downstream gauges must be

present on the line in order to verify the proper

performance of the filter.

4 SCHEDULED MAINTENANCE

4.1 Routine inspection

• The filter must be periodically cleaned,

depending on the service and type of fluid -

at least once a month - by means of the blow-

down valve, installed on the cover.

• Verify that the differential pressure between

filter upstream and downstream is not above

0.4-0.8bar.

4.2 Preventive operations

• Clean the filter at least once a year.

5 TROUBLESHOOTING GUIDE

Below is a list with of most common problems.

However, the list does not include every

possible problem that may occur.

5.1 Body-bonnet joint leakage

Leakage from the body-bonnet joint during

plant operation requires immediate action,

since it may cause irreparable damage to the

filters in the line.

Possible causes of leakage are:

• A previous, incorrect filter reassembly

• The reutilisation of the pressure seal gasket.

5.2 The differential pressure tends to

increase

• The filter is clogged. Clean the filter.

FIGURE 2

Possible installation positions

Flow

FIGURE 1

Filter lifting and handling

RAIMONDI PRESSURE SEAL FILTERS

InstallatIon and maIntenance InstructIons

6 DISASSEMBLY INSTRUCTIONS

Below are the procedures to disassemble

filters. Before starting any operation, it is

important to:

• Identify the problem.

• Clean the area around the filter that is to be

disassembled.

• Arrange for a box or pallet for all

components.

• Arrange for a polyethylene sheet to protect

all components and to prevent particles from

inadvertently entering the body.

1. Loosen the nuts (9).

2. Remove the safety ring (4).

3. Remove the segment rings (5) by pushing

them outside through the four radial holes

in the body.

4. Reassemble the safety ring and nuts (9).

5. Tighten the nuts (9) of the bonnet bolts (8),

until the bonnet is lifted. Remove the ring (6)

and the pressure seal gasket (7).

6. Remove the safety ring and nuts (4).

7. Once the gasket has been removed, proceed

to remove the bonnet (2) and the filter (67).

8. Clean the filter or substitute it.

Start immediately with the filter cleaning

procedure, using pressurized water or steam.

7 ASSEMBLY INSTRUCTIONS

Before starting assembly it is recommended to

verify the following points:

• Remove any dirt or particles with a wire brush

or abrasive cloth; remove any oil or grease

with a suitable solvent, to avoid damage

cause by foreign particles - in particular to

the sealing area.

• Never re-use the old gaskets, even though

they seem to be in good condition.

• Verify that there are no scratches on the body

sealing area.

8 SPARE PARTS LIST

Emerson guarantees the supply of any spare

part for a period of at least ten years from the

manufacturing date (month/year) indicated on

the tag plate.

This table indicates the suggested spare parts

and related quantities.

WARNING

Before starting filter disassembly it

isveryimportant to verify - for your safety - that:

• The line is not pressurized.

• The line is at ambient temperature.

Item Description Percentage

[1]

Minimum

quantity

7 Gasket 20% 2

67 Filter 10% 1

1. Percentages must be calculated with reference

to equivalent filters and must be rounded up to a

whole number.

7.1 Type 'I'

1. Place a new pressure seal gasket on the

bonnet. Install on the body the assembly

body/filter.

2. Place the ring 6) and the segment rings (5).

3. Insert the safety ring (4) and tighten the nuts

(9) to tightening torque values indicated in

Table 1.

4. Once the filter has been pressurized, verify

that the nuts (9) are tightened to the torque

values indicated in Table 1.

½” 5 (50) ½” 2 (20)

⅝” 10 (100) ⅝” 3 (30)

¾” 17 (170) ¾” 5 (49)

⅞” 29 (280) ⅞” 9 (88)

1” 43 (420) 1” 13 (130)

1⅛” 61 ( 600) 1⅛” 18 (180)

1¼” 86 (850) 1¼” 26 (255)

1⅜” 112 (1100) 1⅜” 34 (335)

200 220 190.7 - 240 0005 A1 LBA30 AT080 1

RAIMONDI PRESSURE SEAL FILTERS

InstallatIon and maIntenance InstructIons

9 APPENDICES

The reference drawings are those relating to the supply only. The drawings published in this

manual are typical drawings only and may not represent the filters supplied.

FIGURE 3

Typical filter

TABLE 1 - TIGHTENING TORQUE VALUES FOR BOLTS/SCREWS

Bolts/screws: A 193 B7 Bolts/screws: A 193 B8

Ø Bolts/screws

Torque values

Ø Bolts/screws

Torque values

Kgm (Nm) Kgm (Nm)

TABLE 4 - PARTSLIST

Pos. Part name Material

1 Body 16Mo3

2 Bonnet 10CrMo9-10

4 Safety ring A 105

5 Segment ring 10CrMo9-10

6 Ring 10CrMo9-10

7 Gasket Pure graphite

8 Bolts A 193 B8

9 Nuts A 194 8

11 Screws A 182 F304

67 Filter AISI 304

TABLE 2 - DIMENSIONS in mm

DN øA øB B.W.E Weight (kg) Item T.A.G. Pieces

TABLE 3

Design conditions

Test conditions

Hydr. Tightness

Water Air

Pressure 79bar 198bar 87 bar 6bar

Temperature 480°C

B.W. detail

Raimondi Pressure seal filters IOM Owner's manual

Raimondi Pressure seal filters IOM Owner's manual

Raimondi Pressure seal filters IOM Owner's manual

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