Spirax Sarco M15 Series Manuale utente
IM-P133-41 ST Issue 1 1
M15 ISO Ball Valve
Screwed, SW, BW and flanged versions
Installation and Maintenance Instructions
IM-P133-41
ST Issue 1
BAC 13309
1. General
safety information
2. General
product information
3. Installation
4. Commissioning
5. Operation
6. Maintenance
7. pare parts
Printed in the UK © Copyright 2002
IM-P133-41 ST Issue 12
1. General safety information
Safe operation of the unit can only be guaranteed if it is properly installed,
commissioned and maintained by a qualified person (see Section 11 of the attached
SupplementarySafetyInformation)incompliancewiththeoperatinginstructions.General
installation and safety instructions for pipeline and plant construction, as well as the
proper use of tools and safety equipment must also be complied with.
Isolation
Consider whether closing isolating valves will put any other part of the system or
personnel at risk. Dangers might include; isolation of vents and protective devices or
alarms. Ensure isolation valves are turned off in a gradual way to avoid system shocks.
Pressure
Before attempting any maintenance consider what is or may have been in the pipeline.
Ensure that any pressure is isolated and safely vented to atmospheric pressure before
attempting to maintain the product, this is easily achieved by fitting Spirax Sarco
depressurisation valves type DV (see separate literature for details). Do not assume
that the system is depressurised even when a pressure gauge indicates zero.
Temperature
Allow time for temperature to normalise after isolation to avoid the danger of burns and
consider whether protective clothing (including safety glasses) is required.
Disposal
The product is recyclable. No ecological hazard is anticipated with the disposal of this
product providing due care is taken.
IM-P133-41 ST Issue 1 3
2.1 General description
M15ISO isa threepiece bodyball valvedesign withmetal seats.This makesit suitablefor working
with:Fluids thatcontainsolidsinsuspension,hightemperaturefluidsandflowcontrolapplications.
ISO mounting
The integral ISO body mounting allows the valve to be automated without losing seal integrity,
as the body does not require disassembly. Manual to remote control may therefore be safely and
easily accomplished by the ISO range of Spirax Sarco ball valves.
Available types
Note: The nomenclature will be followed with either FB (full bore) or RB (reduced bore)
i.e. M153KRB ISO.
M152V_ _ ISO Zinc plated carbon steel body, Viton 'O' ring.
M152K_ _ ISO Zinc plated carbon steel body, Kalrez 'O' ring.
M153V_ _ ISO Stainless steel body, Viton 'O' ring.
M153K_ _ ISO Stainless steel body, Kalrez 'O' ring.
M154V_ _ ISO Complete stainless steel, Viton 'O' ring.
M154K_ _ ISO Complete stainless steel, Kalrez 'O' ring.
Note: For additional information see Technical Information Sheet, TI-P133-34.
2. General product information
Fig. 1 M15 ISO ball valve
IM-P133-41 ST Issue 14
Pressure bar g
Temperature °C
0510 15 21
20
0
50
100
150
220
300
250
Steam
saturation
curve
A - B - C M15_K using Kalrez 'O' ring.
D - E - C M15_V using Viton 'O' ring.
AB
E
C
2.2 Sizes and pipe connections
¼", 2", ½", ¾", 1", 1¼", 1½", 2", (2½" only available with reduced bore).
Screwed BSP, BSPT, NPT, SW, BW full bore and reduced bore.
DN15 - 50 (DN65 only available with reduced bore).
Flanged ANSI 150 and ANSI 300, full bore and reduced bore.
Flanged DIN PN40, full bore and reduced bore.
2.3 Limiting conditions
Maximum operating temperature M15V 220°C @ 21 bar g
M15K 300°C @ 21 bar g
Maximum operating pressure M15V 21 bar g @ 220°C
M15K 21 bar g @ 300°C
Maximum saturation steam pressure 21 bar g
Designed for a maximum cold hydraulic test pressure of: 32 bar g
2.4 Operating range
D
IM-P133-41 ST Issue 1 5
Note: Before actioning any installation observe the 'Safety information' in Section 1.
Although the valve has great structural integrity, severe misalignment and/or the pulling effect of
incorrect pipe length will have a detrimental effect on the valve and must be avoided. Particular
attention should be paid to correct pipe alignment such that the inlet pipework and valve are all on
the same axis.
Valvesareforbothon/offandcontrolapplicationsandmaybeinstalledwithflowineitherdirection.
Wherever practicable, valves should be installed where there is adequate space available so that
they can be conveniently operated and maintained.
Before installing a valve, check to ensure that size, pressure rating, materials of construction, end
connections, etc. are suitable for the service conditions of the particular application.
Care must be taken to ensure that all dirt which may have accumulated in the valve during storage
is removed before installation, maintain cleanliness during installation since the introduction of dirt
can result in damage to the valve seats and operating mechanism.
Tominimisethedangerofabrasiveparticlesdamagingtheseats,pipelinestrainersshouldbefitted
upstream of the valves.
Install the valve with the handle in a suitable position. The preferred position is with the spindle
vertical. The valve can be installed from the vertical to the horizontal plane (see Fig. 2 below).
3. Installation
Fig. 2 Correct installation
Donotmountthevalveupsidedown(Fig.3).
Fig. 3 Incorrect installation
When installed on steam systems a suitable
steam trap should be fitted immediately
upstreamofthe isolation valve. Thiswillensure
drainage of the pipe when the valve is closed,
and will prevent damage of the valve due to
waterhammer.Thedraintrapshouldbeeithera
ball float (FT) or thermodynamic (TD) type.
Correct condensate drainage of all upstream
pipework is also vital.
Valves should be installed into the pipeline
in the fully closed position. Prior to welding into
the pipeline, it will be necessary to:
1. Dismantle the end caps from the body.
2. Remove the stainless steel seat.
3. Weld each end cap to the pipeline.
4. Replace the stainless steel seats.
5. Reassemble.
Always open valves slowly to avoid system
shocks.
7
3
IM-P133-41 ST Issue 16
6. Maintenance
Note: Before actioning any maintenance programme observe
the 'Safety information' in Section 1.
6.1 General information
As with all mechanical devices, regular maintenance is the most efficient means of ensuring
continued operational efficiency.
Regular scheduled inspection of all valves is essential especially on valves which are operated
only occasionally.
6.2 General maintenance
Maintenance work can be carried out without removing the complete ball valve from the pipeline.
Remove the four nuts (17) and bolts (16). The complete body assembly can then be removed and
any new parts fitted.
Whenever the valve is dismantled, the graphite body gaskets (15) must be replaced before
reassembly.
Flanged valves: To proceed with maintenance work, the complete flanged valve requires
removalfromthe pipeline. Removethefour nuts(17)and withdraw the fourbolts(16).Thecomplete
body assembly can now be removed and the new parts fitted.
6.3 To replace seats (5)
-Remove the body as described in Section 6.2.
-With body removed, remove seats (5).
-Fit new seats (5) and seat 'O' rings (14), pushing them into the body recesses.
6.4 To replace the ball
-With body and seats removed, remove the ball (3).
-Fit the new ball into the valve body.
-Fit the new seats and seat seals as described in 6.3, above.
6.5 To replace stem seals (6, 6A and 7)
-Remove body as described in Section 6.2.
-Remove nuts (10, 10A), and two belleville washers (9).
-Replace stem seals (6, 6A and 7).
6.6 To replace body gasket (15)
-With body removed, remove the body gasket (15).
-Fit new body gaskets (15), pushing them into the body recesses.
6.7 Reassembly
Reassemble in reverse order to instructions given above. The securing bolts and nuts (16, 17)
should be tightened to the recommmended torques shown in Table 1 opposite.
After 24 hours in service, retighten body bolts.
4. Commissioning
After installation or maintenance ensure that the system is fully functioning. Carry out tests on
any alarms or protective devices.
5. Operation
The valve is operated manually by a handle, or automatically by an actuator. Special care must be
taken to ensure that the movement is made in the correct direction.
The valve can be used as an on/off valve or a modulation flow control valve, and can be operated
fully open, fully closed, or any point in between.
IM-P133-41 ST Issue 1 7
Table 1 Recommended tightening torques
Item no. Part Size N m (lbf ft)
¼", 2", ½" RB 10 7.4
½" FB ¾" RB 10 7.4
18 Securing bolts ¾" FB 1" RB 25 18.0
19 Nuts 1" FB 1¼" RB 25 18.0
1¼" FB 1½" RB 40 30.0
1½" FB 1½" RB 57 42.0
2" RB 75 55.0
¼", 2", ½" RB 5.4 - 8.1 4 - 6
½" FB ¾" RB 5.4 - 8.1 4 - 6
10A Stem nut ¾" FB 1" RB 17.5 - 20.3 13 - 15
1" FB 1¼" RB 17.5 - 20.3 13 - 15
1¼" FB 1½" RB 17.5 - 20.3 13 - 15
1½" FB 1½" RB 17.5 - 20.3 13 - 15
2" RB 40 - 47 30 - 34
55
Fig. 4 ¼" - ¾" shown
16 17
10A
15
15
9
10
1414 3
6
7
6A
IM-P133-41 ST Issue 18
7. pare parts
Fig. 5 ¼" - ¾" shown
The spare parts available are shown in heavy outline. Parts drawn in broken line are not
supplied as spares.
Available spares
Ball 3
Seat, seals, 'O' ring and body gasket set 5, 6 and 6A, 7,14, 15
How to order spares
Always order spares by using the description given in the column headed 'Available spares'
and state the size and type of ball valve.
Example: 1 - Seat, seals, 'O' ring and body gasket set for a ½" M152VFB ISO ball valve.
5515
15 1414 3
6
7
6A
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