Emerson Tartarini B/240-FS Series, Tartarini B/240 Series, Tartarini B/242, Tartarini B242-AP, Tartarini B249-AP Instruction Manual

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Page 1
Instruction Manual 0047EN-B240-IM
September 2010 - Rev. 01
Type B/240
B/240 Series Spring Loaded Pressure Regulators
SUMMARY
Introduction ........................................................................ 1
P.E.D. Categories and Fluid Group ................................... 2
Characteristics ................................................................... 2
Labelling ............................................................................ 2
Overpressure Protection .................................................... 3
Transport and Handling ..................................................... 3
Atex Requirements ............................................................ 3
Slam-Shut Controller ......................................................... 3
Dimensions and Weights ................................................... 4
Operation ........................................................................... 5
Installation ......................................................................... 6
Startup ............................................................................... 6
Adjustment ......................................................................... 7
Shutdown ........................................................................... 7
Periodical Checks .............................................................. 7
Maintenance ...................................................................... 7
Spare Parts ........................................................................ 8
Troubleshooting ................................................................. 8
Parts List ............................................................................ 9
INTRODUCTION
This manual provides instructions for installation, startup, maintenance and spare parts ordering for the B/240 series spring loaded regulators.
Product Description
The B/240 series regulators are spring loaded single seated, whit counterbalanced valve disc.
They are usually supplied with safety valve and built in
lter and can be also provided with slam-shut controller for
minimum pressure, maximum pressure or minimum and maximum downstream pressure.
The regulators of the B/240 series due to their operating
specications are mainly used in those system where
sudden capacity variations are required, or else, where the cut-off of the gas distribution is controlled by solenoid valve, such as for the feeding of burners.
They can be used with natural gas, and other not aggressive gases.
The following versions are available:
B/242 B242-AP: Regulator
B/249 B249-AP: Regulator with slam-shut
Versions without relief valve available on request
Tightness cover versions available on request (e.g. B/249-D).
The standard gas pressure devices (regulators and safety shut-off devices) are those used in the assemblies dealt with into EN 12186 and EN 12279 and their use has to be under the provisions into ENs 12186 & 12279.
Fail-to-open stand-alone regulators cannot be used as a safety accessory according PED 97/23/EC to protect downstream pressure equipment.
In the pressure regulators (with or without built-in safety shut-off devices) manufactured by Emerson Process Management shall be used additionary pressure accessories
(e.g. pilots or lters) manufactured and labeled by Emerson
Process Management.
Emerson Process Management will be not responsible
for any possible inefciency due to installation of not own
production additionary pressure accessories (e.g. pilots or
lters).
When pressure containing parts of possible built-in safety shut-off device (SSD) valve and pilot have different maximum allowable pressures, the SSD is differential strength type.
Figure 1. Regulator Type B/249
Page 2
Type B/240
=x
P.E.D. CATEGORIES AND FLUID GROUP
According to EN 14382, only in integral strength type and
Class A conguration (when both over and under pressure
protections are set up), the possible built-in safety shut-off
device can be classied like a safety accessory according
to PED.
The minimum PS between SSD valve and pilot shall be the PS of the safety accessory to comply the provisions of EN 14382 about integral strength type.
Downstream equipments, protected by possible built-in safety shut-off device (in its Class A and integral strength
conguration) of this product, shall have technical features
such as to be category per table below according Directive 97/23/EC “PED”.
Table 1. P.E.D. Category for B/240 Series Regulators
PRODUCT SIZE CATEGORY FLUID GROUP
DN 1 1/2” E DN 40
WITHOUT SLAM-SHUT
DN 1 1/2” E DN 40
WITHT SLAM-SHUT
I
IV
1
Outlet Set Pressure Ranges
B/242 • B/249: 10 ÷ 75 mbar
B/242-AP • B/249-AP: 50 ÷ 300 mbar
Range 300 ÷ 500 mbar available on request.
Minimum/Maximum Allowable Temperature (TS)
See label
Functional Features
Accuracy Class AC : up to ± 5%
Lock-up Pressure Class SG : up to + 10%
Slam-Shut Controller
Accuracy Class AG : ± 5%
Response Time t
: ≤ 1 second
a
Temperature
Standard Version: Working -10° to 60°C
Low Temperature Version: Working -20° to 60°C
Possible built-in pressure accessories (e.g. pilots OS66/) conform to Pressure Equipment Directive (PED) 97/23/EC Article 3 section 3 and were designed and manufactured in accordance with sound engineering practice (SEP).
Per Article 3 section 3, these “SEP” products must not bear the CE marking.
CHARACTERISTICS
Body Sizes and End Connection Styles
B/240 Series
DN 1 1/2” BSP inlet/outlet
B/240-FS Series
DN 40 PN 16 UNI/DIN anged
WARNING
!
The pressure/temperature limits indicated in this instruction manual or any applicable standard or code limitation should not be exceeded.
Materials
Servomotor body: Aluminium
Cover: Aluminium
Body: Ductile iron
Sleeve: Brass
Seat: Brass
Diaphragm: Fabric Nitrile (NBR)
Gaskets: Nitrile (NBR) rubber
LABELLING
Notified
BOLOGNAITALY
O.M.T.
MATRICOLA SERIALNr. ANNO YEAR NORMEARMONIZ. HARMONIZEDSTD. CLASSE DI PERDITA LEAKAGECLASS CLASSE FUNZIONALE FUNCTIONALCLASS FLUIDO GRUPPO FLUIDGROUP
TS
Figure 2. Label for B/240 Series Regulators
Note 2
EN
body
APPARECCHIO TIPO /DEVICE TYPE
xxxx
DN1
DN2
Wa
Wao
Cg
pmax
1
PS
°C
body
Wau
bar
PS
bar
covers
Note 1
pao
3
bar PT
bar
bar
bar
bar
PS bar
1.56Note 3
Maximum Operating Inlet Pressure
B/242 • B/249: 6 bar
B/242-AP • B/249-AP: 6 bar
At average ambient temperature.
2
Note 1: See “Characteristics
Note 2: Year of manufacture
Note 3: Class 1: -10°/60°C
Page 3
Type B/240
OVERPRESSURE PROTECTION
The recommended maximum allowable pressures are stamped on the regulator nameplate.
If actual version hasn’t a built-in safety shut-off device, some type of overpressure protection is needed if the actual outlet pressure exceeds the actual maximum operating outlet pressure rating.
Overpressure protection should also be provided if the regulator inlet pressure is greater than the maximum operating inlet pressure. Downstream side pressure after possible built-in SSD’s intervention shall stay within the actual maximum operating set-up range to avoid anomalous back pressures that can damage the SSD’s pilot.
Downstream overpressure protection shall be also provided if the SSD outlet pressure can be greater than the PS of the SSD pilot (differential strength type).
Regulator operation below the maximum pressure limitations does not preclude the possibility of damage from external sources or debris in the line.
The regulator should be inspected for damage after any overpressure condition.
TRANSPORT AND HANDLING
Established transport and handling procedures shall be followed to avoid any damage on the pressure containing parts by shocks or anomalous stresses.
Built-up sensing lines and pressure accessories shall to be protected by shocks or anomalous stresses.
(e.g. : lling/exhausting of fuel gas of internal volume
of the isolated part/entire installation with vent lines to safe area - 7.5.2 of EN 12186 & 7.4 of EN 12279 ; monitoring of settings with further exhaust of fuel gas to safe area ; connection of isolated part/entire installation to downstream pipeline; ….)
provision in 9.3 of EN 12186 & 12279 shall be enforced by pressure regulating/measuring station/installation’s end user
external tightness test shall be carried out after each reassembly at installation site using testing pressure in accordance with national rules
in case of selfop regulators diaphragm’s incidental failure the amount of maximum ow to be vented can be calcu-
lated using the universal gas sizing equation, assuming inlet pressure = regulator’s set-point, outlet pressure = atmospheric pressure and venting hole DN on the regula­tor’s upper cover = 16 mm (Cg = 280).
periodical check/maintenance for surveillance shall be carried out complying with national regulations, if any, and
specic manufacturer recommendations.
SLAM-SHUT CONTROLLER
The following controllers are used with B/240 series regulator with built-in slam-shut:
OS/66 Series spring loaded controllers
ATEX REQUIREMENTS
If the provisions of EN 12186 & EN 12279, national regula-
tions, if any, and specic manufacturer recommendations are
not put into practice before installation and if purge by inert gas is not carried out before equipment’s start-up and shut­down operations, a potential external and internal explosive atmosphere can be present in equipment & gas pressure regulating/measuring stations/installations.
If a presence of foreign material in the pipelines is foreseen and purge by inert gas is not carried out, the following procedure is recommended to avoid any possible external ignition source inside the equipment due to mechanical generated sparks :
drainage to safe area via drain lines of foreign materials, if
any, by inow of fuel gas with low velocity in the pipe-work
( 5m/sec)
In any case,
provisions of Directive 1999/92/EC and 89/655/EC shall be enforced by gas pressure regulating/measuring station/ installation’s end user
with a view to preventing and providing protection against explosions, technical and/or organizational measures appropriate to the nature of the operation shall be taken
Figure 3. OS/66 Slam-Shut Controller
Table 2. OS/66 Characteristics
MODEL
OS/66 6 0.022 0.6 0.007 0.45
OS/66-AP 6 0.2 5 0.1 2.5
BODY
RESISTANCE
bar
OVERPRESSURE
SET RANGE
bar
W
do
Min. Max. Min. Max.
UNDERPRESSURE
SET RANGE
W
bar
du
Materials
Body: Aluminium
Cover: Steel
Diaphragm: NBR rubber
3
Page 4
Type B/240
B/249 • B/249-AP B/242 • B/242-AP
50 175
DIMENSIONS AND WEIGHTS
200
153
252 170
125
170
90
75
13048184
175
50
200
252 50
153
7513048
184
FS VERSION FS VERSION
Note: The regulator can be installed with vertical or horizontal orientation of the actuator.
Figure 4. B/240 Series Dimensions (mm)
Weights:
B/242 B242-AP: 3.5 Kg B/242-FS B242-AP-FS: 7.5 Kg
B/249 B249-AP: 4.5 Kg B/249-FS B249-AP-FS: 8.5 Kg
4
Page 5
OPERATION
S
L
M
M1
VS
Type B/240
OS/66
D
O
I
O
T
A
F
F
I
C
I
N
A
M
R
T
A
B
O
L
O
T
I
A
A
C
I
N
A
C
C
E
N
G
Y
L
I
N
I
R
A
Figure 5. B/240 Series Operational Schematic
The movements of the diaphragm (D) are transmitted to the valve disc (O) by the stem (S) and the lever (L).
The downstream pressure through the pulse pipe (I) exerts a force under diaphragm (D) and this force is counteracted by the adjusting spring (M).
The gas pressure on the diaphragm tends to close the valve disc; the antagonist action of the adjustment spring tends to open it. Under normal conditions the balance between these antagonist actions positions the valve disc in such a way as to ensure a constant pressure and therefore the downstream capacity.
Upon any capacity variation tending to cause an increase or decrease of pressure in relation to the pre-set pressure, the moving
unit reacts and nds a new balance, so re-establishing the pressure.
Upon request the regulator is also provided with safety valve (VS) incorporated in the diaphragm (D); the adjustment at the pre-set value is performed by means of spring (M1).
For the operation of the OS/66 slam-shut controller see the Instruction Manual 0048EN-OS66-IM.
5
Page 6
Type B/240
INSTALLATION
Ensure that the data found on the regulator plate are compatible with usage requirements.
Ensure that the regulator is mounted in accordance with the direction of ow indicated by the arrow.
WARNING
!
Installation shall be in accordance with national standard for material use limita­tions in gas pressure reducing stations. Only
qualied personnel should install or service
a regulator. Regulators should be installed, operated, and maintained in accordance with international and applicable codes and regu­lations, and O.M.T. Tartarini instructions. If the
regulator vents uid or a leak develops in the system, it indicates that service is required. Failure to take the regulator out of service im-
mediately may create a hazardous condition.
Personal injury, equipment damage, or
leakage due to escaping uid or bursting of
pressure-containing parts may result if this
regulator is over pressured or is installed where service conditions could exceed the limits given in the Specications section,
or where conditions exceed any ratings of the adjacent piping or piping connections.
To avoid such injury or damage, provide pressure-relieving or pressure-limiting de­vices (as required by the appropriate code, regulation, or standard) to prevent service
conditions from exceeding limits.
Additionally, physical damage to the regula­tor could result in personal injury and prop-
erty damage due to escaping uid. To avoid
such injury and damage, install the regulator
in a safe location. Before installation, check shall be done if service conditions are con-
sistent with use limitations and if pilot set-up
of possible built-in safety shut-off device are in accordance with service conditions of
protected equipment.
All means for venting have to be provided in
the assemblies where the pressure equip­ment are installed (ENs 12186 & 12279).
All means for draining have to be provided in
the equipment installed before regulators &
shut-off devices (ENs 12186 & 12279).
Further the ENs 12186 & 12279, where this product is used :
• provide the cathodic protection and electri­cal isolation to avoid any corrosion and
• in accordance with clause 7.3/7.2 of afore-
said standards, the gas shall be cleaned
by proper lters/separators/scrubbers to avoid any technical & reasonable hazard of
erosion or abrasion for pressure contain­ing parts.
Pressure equipment in subject shall be installed in non-seismic area and hasn’t to
undergo re and thunderbolt action.
Clean out all pipelines before installation of the regulator and check to be sure the regu­lator has not been damaged or has collected foreign material during shipping.
For threaded bodies, apply pipe compound to the male pipe threads.
For anged bodies, use suitable line gaskets and approved piping and bolting practices.
Install the regulator in any position desired,
unless otherwise specied, but be sure ow
through the body is in the direction indicated by the arrow on the body.
Installation must be done avoiding anoma­lous stresses on the body and using suitable joint means according equipment dimen-
sions and service conditions.
For a correct and safe use of the connec­tions check also Instruction Manual and Bul­letin before installation.
User has to check and carry out any protection suitable for assembly’s specic environment.
Note: It is important that the regulator be
installed so that the vent hole in the spring
case is unobstructed at all times.
For outdoor installations, the regulator
should be located away from vehicular trafc
and positioned so that water, ice, and other foreign materials cannot enter the spring
case through the vent.
Avoid placing the regulator beneath eaves or downspouts, and be sure it is above the probable snow level.
STARTUP
The regulator and/or slam-shut controller is factory set at ap­proximately the midpoint of the spring range or the pressure requested, so an initial adjustment may be required to give the desired results.
With proper installation completed and relief valves properly adjusted, slowly open the upstream and downstream line valves.
a. Slightly and very slowly open the outlet cut-off valve.
b. In case of models tted with slam-shut valve, relatch the
valve by rst loosening cap (C) and then screwing it onto
the stem, after which pull cap outwards until a click is heard, indicating that balls are duly engaged.
c. Slightly and very slowly open the inlet cut-off valve.
d. Wait for outlet pressure to stabilize.
e. Finally, slowly open inlet and outlet cut-off valves fully.
6
Page 7
Type B/240
ADJUSTMENT
To change the outlet pressure, remove the closing cap (key. 1) and turn the adjusting nut (key. 2) clockwise to increase outlet pressure or counter clockwise to decrease pressure.
Monitor the outlet pressure with a test gauge during the adjustment.
Remount the closing cap (key. 1).
SHUTDOWN
WARNING
!
To avoid personal injury resulting from
sudden release of pressure, isolate the regulator from all pressure before attempting disassembly and release trapped pressure from the equipment and pressure line.
In case of disassembly of main pressure re­taining parts for checks and maintenance pro­cedures, external and internal tightness tests
have to be done according applicable codes.
PERIODICAL CHECKS
CAUTION
It is recommended that checks be made periodically on the efciency of the regulator
and pilots.
MAINTENANCE (SEE FIGURE 6)
WARNING
!
All maintenance procedures must be
carried out only by qualied personnel. If
necessary, contact our technical support
representatives or our authorized dealers.
The regulator and it’s pressure accessories are subject to normal wear and must be inspected periodically and replaced if necessary.
The frequency of inspection/checks and replacement depends upon the severity of service conditions and according to applicable National or Industry codes, standards and regulations/recommendations.
In accordance with applicable National or Industry codes, standards and regulations/recommendations, all hazards
covered by specic tests after nal assembling before
applying the CE marking, shall be covered also after every subsequent reassembly at installation site, in order to ensure that the equipment will be safe throughout its intended life.
Before proceeding with any maintenance work, shutoff the gas upstream and downstream from the regulator, also ensure that there is no gas under pressure inside the body by loosening the upstream and downstream connections.
Upon completion, check for leaks using suds.
Regulator Checking
Slowly close the outlet cut-off valve and check pressure in the length of pipe between the regulator and the valve.
If the system is functioning properly, an increase in outlet pressure will be noticed due to lock-up pressure, after which pressure will stabilize.
If, on the contrary, outlet pressure continues increasing, the system is not functioning properly due to improper valve disc tightness. In this case, close the valve located upstream of regulator and carry out maintenance procedures.
Relief Valve Checking (if installed)
Close the valve located downstream of regulator. Next, connect a manual pump or other similar device to a
previously tted impulse connection between the regulator
and the valve and raise the pressure until relief valve is activated, i.e. until gas is released from vent.
Slam-Shut Controller Checking (if installed)
See the Instruction Manual
0048EN-OS66-IM.
General Maintenance
a. Remove screws (key 56) and clamp (key 55) in order to
take off diaphragm case.
b. Remove bush (key 19) and balancing unit from the body
(key 21).
c. Remove centring unit (key 36) and spring holder (key 16)
and strip all parts down. Carefully clean all parts with petrol and replace those which are found to be worn out.
d. Check pad holder unit (key 37).
e. By means of the appropriate tool, unscrew seat (key 22)
and check O-ring (key 35). Replace seat if worn or scored.
f. Remove cap (key 1), ring nut (key 2) and spring (key 3),
taking care to mark the exact position of the ring nut for remounting.
g. Remove screws (key 15) and take off cover (key 9).
h. Remove the diaphragm unit (key 14) from the servomotor
body (key 44).
7
Page 8
Type B/240
i. Check diaphragm and if worn or damaged, dismount the
diaphragm unit and replace it.
Unscrew register nut (key 4) and then remove spring
(key 6).
In the models tted with relief valve take care to mark the
height of the preloaded spring in order to reassemble it in its original position, thus ensuring proper setting of the relief valve.
j. Check O-ring (key 17 and 24).
Relatching Unit Maintenance (if installed)
a. Trigger actuator and remove impulse line (A).
b. Loosen dowels (G) and remove OS/66 actuator.
c. Remove plug (key 29) from regulator and check stem
(key 28); if worn or damaged, dismount the pad holder (key 33) and replace the stem.
d. Carefully clean and check all components, replacing
those worn out.
See the Instruction Manual 0048EN-OS66-IM for the slam-shut controller maintenance.
Reassembling
Lubricate all seals with “MOLYKOTE 55 M” and be very careful not to damage them when reassembling.
Reassemble by reversing the above steps.
As you proceed, make sure that parts move freely and without friction.
In addition:
a. Diaphragm unit (key. 14), is properly reassembled by
lubricating it with some grease and by carefully tting it
into the servomotor body (key. 44).
b. All screws are duly tightened in order to ensure proper
sealing.
c. If installed check the correct relatching of the slam-shut
controller (see Startup item b).
d. Check for leaks using suds.
SPARE PARTS
Spare parts storage shall be done by proper procedures according to national standard/rules to avoid over aging or any damage.
TROUBLESHOOTING
SYMPTOMS CAUSE ACTIONS
The regulator does not open
Drop in pressure downstream from the regulator
Increase in pressure downstream from the regulator
or safety devices being activated
(relief valve or slam-shut valve)
Table 3. General Troubleshooting for B/240 Series
Lack of incoming gas Check the station feeding
The slam-shut controller has not been reset Manually reset the slam-shut controller
Insufcient upstream pressure Check the station feeding
Flow requirements higher than the ow
that the regulator can supply
Filter upstream is obstructed Clean or replace it
Tight shutoff gaskets are worn To be replaced
Deposits of grime on the tight shutoff pad are
obstructing proper positioning of the shutter
Diaphragm damaged To be replaced
Check the regulator sizing
Clean or replace it
Slam-shut device does not execute tight
shutoff procedure
8
O-ring and/or slam-shut pad worn To be replaced
Slam-shut seat damaged To be replaced
Page 9
PARTS LIST
A
Key Description
1 Cap 2 Ring nut 3 Spring 4 Nut 5 Spring holder 6 Spring 7 Relief valve guide 8 Special nut 9 Cover 10 Spring guide plate 11 Diaphragm plate 13 Relief valve stem 14* Diaphragm unit 15 Screw 16 Spring holder 17* O-ring 18* Hub unit 19 Bush 20* Diaphragm 21 Body 22 Seat 23* Pad unit 24* O-ring 25 Slam-shut controller OS/66 26 Connection 27* O-ring 28 Stem 29 Plug 30* O-ring 31 Spring holder 32 Spring 33 Pad holder 34 Elastic ring 35* O-ring 36 Centring unit 37* Pad holder unit 38* O-ring 39 Plate 40 Shaft 41 Spring 42 Spacer 43 Lever 44 Servomotor body 45 Connection 46 Elastic washer 47 Frame 48 Elastic ring 49 Net 50 Lid 51 Label 52 Screw 53 Pin 54 Dado 55 Clamp 56 Screw 57 Pipe 58 Connection 59 Pipe 60 Pipe extension 64 Pawl 66 Flange 67 Hub 68* O-ring 69 Relief valve pipe 70 Relief valve plate 71 Filter 72 Elastic pin 73* O-ring 74 Relief valve seat 75 Gasket 77* O-ring 78 Screw 79 Plate
Rubber parts marked with (*) are supplied in the “spare parts kit”, recommended as stock. To order the kit it is necessary to communicate to us the type of the regulator and its serial number.
PIPE EXTENSION, ONLY FOR OUTLET PRESSURES 15 TO 40 mbar
60 59
58
55
53
52
Type B/240
78
54 56
I
A
N
C
I
I
N
A
C
R
A
A
T
R
A
N
Y
L
G
A
O
L
T
I
O
B
C
E
M
A
N
I
C
I
F
F
O
T
A
Figure 6. B/240 Series Regulator LM/1234
9
Page 10
Type B/240
SEC. A-A
C
FOR THE VERSIONS WITHOUT RELIEF VALVE MAKE SOLID SPRING KEY 6
5
3
6 9
2
1
A
26
27
28
G
30
31
25
24
23
71
2122
20
19
18
17
C
29
32
33
34
35
36
37
57
38
16
39
15
40
14
41
70
42
7
8
11 12
43
44
45
LM/1234
10
13
72
73
10
4
6951
50
74
49
75
46
48
Figure 6. B/240 Series Regulator (continued)
47
Page 11
B/240-FS VERSION
Type B/240
B/242 VERSION
29
68
67
66
HIGH PRESSURE VERSION
1
64
7
5
6
68
67
66
OUTLET PRESSURE UP TO 0.5 bar QL VERSION DETAIL
7910 15 80
LM/1234
TIGHTNESS COVER VERSION
BP DETAIL AP DETAIL
1
1
77 77
Figure 6. B/240 Series Regulator (continued)
11
Page 12
Type B/240
Natural Gas Technologies Emerson Process Management Regulator Technologies, Inc.
O.M.T
Ofcina Meccanica Tartarini s.r.l.
Via P. Fabbri, 1 I - 40013 Castel Maggiore (Bologna) Italy Tel. : +39 - 0514190611 Fax: +39 - 0514190715 E-mail: info.tartarini@emerson.com
For further information visit: www.emersonprocess.com/regulators
The Emerson logo is a trademark and service mark of Emerson Electric Co. All other marks are the property of their prospective owners. Tartarini is a mark of O.M.T. Ofcina Meccanica Tartarini s.r.l.,
a business of Emerson Process Management.
The contents of this publication are presented for informational purposes only, and while every effort has been made to ensure their accuracy, they are not to be construed as warranties or guaran-
tees, express or implied, regarding the products or services described herein or their use or applicability. We reserve the right to modify or improve the designs or specications of such products at
any time without notice.
Emerson Process Management does not assume responsibility for the selection, use or maintenance of any product. Responsibility for proper selection, use and maintenance of any Emerson Process Management product remains solely with the purchaser.
© O.M.T. Ofcina Meccanica Tartarini s.r.l., 2010 ; All Rights Reserved
Emerson Process Management Natural Gas Technologies
Francel SA Z.A. La Croix Saint Mathieu 28320 Gallardon France Tel. : +33 (0)2.37.33.47.00 Fax : +33 (0)2.37.31.46.56
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