Spirax Sarco M10S User manual

IM-P133-16 CMGT Issue 5
1
1. Safety information
2. General product information
3. Installation
4. Commissioning
5. Operation
6. Maintenance
7. Spare parts
© Copyright 2018
Printed in GB
M10S Ball Valve DN¼" to DN2½"
Screwed, SW, BW and Flanged versions
Installation and Maintenance Instructions
IM-P133-16
CMGT Issue 5

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Safe operation of this product can only be guaranteed if it is properly installed, commissioned,
used and maintained by qualified personnel (see Section 1.11) in compliance with the operating
instructions. 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.
1.1 Intended use
Referring to the Installation and Maintenance Instructions, name-plate and Technical Information
Sheet, check that the product is suitable for the intended use/application.
The product listed below complies with the requirements of the Pressure Equipment Directive
(PED) and carries the mark when so required.
The product falls within the following Pressure Equipment Directive categories:
Product Group 1
Gases
Group 2
Gases
Group 1
Liquids
Group 2
Liquids
M10S
PDR 0.8 seats
(Carbon/graphite
reinforced PTFE)
DN¼" SEP SEP SEP SEP
DN3/8" SEP SEP SEP SEP
DN½" SEP SEP SEP SEP
DN1¾" SEP SEP SEP SEP
DN1" SEP SEP SEP SEP
DN1¼" 2SEP 2SEP
DN½" 212SEP
DN2" 212SEP
DN2½" 212SEP
i) The product has been specifically designed for use on steam, compressed air, water/condensate
and other industrial fluids that are in Group 2 of the above mentioned Pressure Equipment
Directive.
ii) Determine the correct installation situation and direction of fluid flow.
iii) Spirax Sarco products are not intended to withstand external stresses that may be induced
by any system to which they are fitted. It is the responsibility of the installer to consider these
stresses and take adequate precautions to minimise them.
iv) Remove protection covers from all connections and protective film from all name-plates, where
appropriate, before installation on steam or other high temperature applications.
1.2 Access
Ensure safe access and if necessary a safe working platform (suitably guarded) before attempting
to work on the product. Arrange suitable lifting gear if required.
1.3 Lighting
Ensure adequate lighting, particularly where detailed or intricate work is required.
1. Safety information

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1.4 Hazardous liquids or gases in the pipeline
Consider what is in the pipeline or what may have been in the pipeline at some previous time.
Consider: flammable materials, substances hazardous to health, extremes of temperature.
1.5 Hazardous environment around the product
Consider: explosion risk areas, lack of oxygen (e.g. tanks, pits), dangerous gases, extremes of
temperature, hot surfaces, fire hazard (e.g. during welding), excessive noise, moving machinery.
1.6 The system
Consider the effect on the complete system of the work proposed. Will any proposed action (e.g.
closing isolation valves, electrical isolation) put any other part of the system or any personnel
at risk?
Dangers might include isolation of vents or protective devices or the rendering ineffective of
controls or alarms. Ensure isolation valves are turned on and off in a gradual way to avoid system
shocks.
1.7 Pressure systems
Ensure that any pressure is isolated and safely vented to atmospheric pressure. Consider double
isolation (double block and bleed) and the locking or labelling of closed valves. Do not assume
that the system has depressurised even when the pressure gauge indicates zero.
1.8 Temperature
Allow time for temperature to normalise after isolation to avoid danger of burns.
If parts made from PTFE have been subjected to a temperature approaching 260 °C (500 °F) or
higher, they will give off toxic fumes, which if inhaled are likely to cause temporary discomfort.
It is essential for a no smoking role to be enforced in all areas where PTFE is stored, handled or
processed as persons inhaling the fumes from burning tabacco contaminated with PTFE particles
can develop 'polymer fume fever'.
1.9 Tools and consumables
Before starting work ensure that you have suitable tools and/or consumables available. Use only
genuine Spirax Sarco replacement parts.
1.10 Protective clothing
Consider whether you and/or others in the vicinity require any protective clothing to protect against
the hazards of, for example, chemicals, high/low temperature, radiation, noise, falling objects, and
dangers to eyes and face.
1.11 Permits to work
All work must be carried out or be supervised by a suitably competent person.
Installation and operating personnel should be trained in the correct use of the product according
to the Installation and Maintenance Instructions.
Where a formal 'permit to work' system is in force it must be complied with. Where there is no such
system, it is recommended that a responsible person should know what work is going on and, where
necessary, arrange to have an assistant whose primary responsibility is safety.
Post 'warning notices' if necessary.

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1.12 Handling
Manual handling of large and/or heavy products may present a risk of injury. Lifting, pushing,
pulling, carrying or supporting a load by bodily force can cause injury particularly to the back.
You are advised to assess the risks taking into account the task, the individual, the load and the
working environment and use the appropriate handling method depending on the circumstances
of the work being done.
1.13 Residual hazards
In normal use the external surface of the product may be very hot. If used at the maximum permitted
operating conditions the surface temperature of this product may reach temperatures of 260 °C (500 °F).
This product is not self-draining. Take due care when dismantling or removing the product from
an installation (refer to 'Maintenance instructions').
1.14 Freezing
Provision must be made to protect products which are not self-draining against frost damage in
environments where they may be exposed to temperatures below freezing point.
1.15 Safety information - Product specific
Hydraulic locking
Ball valves are prone to lock-up when used on certain heating/cooling applications where both
steam and liquid will pass through the valve. This is caused by liquid trapped in the ball during
closure being heated to create a high hydraulic pressure inside the ball cavity. To prevent this,
during manufacture, a minute hole is drilled in the ball, so, that in the closed position, any excess
pressure will be relieved. Spirax Sarco ball valves for these applications are clearly marked to allow
the valve to be correctly installed, such that, when closed, the hole is facing the steam source.
Seat
If the 'O' rings have been subjected to a temperature approaching 260 °C (500 °F) or higher, they
may have decomposed and formed hydrofluric acid. Avoid skin contact and inhalation of any fumes
as the acid can cause skin burns and damage to the respiratory system.
1.16 Disposal
Unless otherwise stated in the Installation and Maintenance Instructions, this product is recyclable
and no ecological hazard is anticipated with its disposal providing due care is taken, with the
exception of PTFE.
PTFE:
- Can only be disposed of by approved methods, not incineration.
- Keep PTFE waste in a separate container, do not mix it with other rubbish, and consign it to
a landfill site.
1.17 Returning products
Customers and stockists are reminded that under EC Health, Safety and Environment Law,
when returning products to Spirax Sarco they must provide information on any hazards and the
precautions to be taken due to contamination residues or mechanical damage which may present a
health, safety or environmental risk. This information must be provided in writing including Health
and Safety data sheets relating to any substances identified as hazardous or potentially hazardous.

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Fig. 1 M10S flanged version shown
2.1 General description
The M10S three-piece body ball valve has been designed for use as an isolating valve, not a control valve, and
can be serviced without removal from the pipeline (screwed and welded versions only). It can be used with
the majority of industrial fluids for services ranging from vacuum to the higher temperatures and pressures.
Available types
M10S2 Zinc plated carbon steel body, PDR 0.8 seats
Note: The nomenclature will be followed with
either FB (full bore) or RB (reduced bore).
M10S3 Stainless steel body, PDR 0.8 seats
M10S4 Complete stainless steel, PDR 0.8 seats
Standards
This product fully complies with the requirements of the Pressure Equipment Directive (PED) and carries
the mark when so required.
Certification
This product is available with certification to EN 10204 3.1.
Note: All certification/inspection requirements must be stated at the time of order placement.
Note: For further information on this product see Technical Information sheet TI-P167-03-EN-ISS1.
2.2 Sizes and pipe connections
Full bore
¼", 3/8", ½", ¾", 1", 1¼", 1½" and 2"
Screwed and welded
BSP, BSPT, API/NPT, BW, SW
Flanged
DN15 to DN50
ASME (ANSI) Class 150, ASME (ANSI) Class 300
and EN 1092 PN40
Reduced bore
¼", 3/8", ½", ¾", 1", 1¼", 1½", 2" and 2½"
Screwed and welded
BSP, BSPT, API/NPT, BW, SW
Flanged
DN15 to DN65
ASME (ANSI) Class 150, ASME (ANSI) Class 300
and EN 1092 PN40
End cap
End cap
Body
2. General product information

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260
200
150
100
50
0
-29
500
400
300
200
100
-20
0 20 40 62 80 100
0 200 400 600 800 1000 1200 1400
2.3 Pressure/temperature limits
The product must not be used in this region.
A - BScrewed, BW and SW ¼" - 1½" FB, RB and 2" RB.
A - CScrewed, BW and SW 2" FB and 2½" RB only.
A - DFlanged ASME (ANSI) 300.
A - EFlanged EN 1092 PN40.
A - EFlanged ASME (ANSI) 150.
Note 1: On the 2" FB and 2½" RB a PTFE gasket is fitted between the body and cap.
Note 2: The flange standard may restrict the maximum operating pressure. Please check with Spirax Sarco.
Body design conditions PN100
PMA Maximum allowable pressure 100 bar g @ 60 °C (1 450 psi g @ 140 °F)
TMA Maximum allowable temperature 260 °C @ 0 bar g (500 °F @ 0 psi g)
Minimum allowable temperature -29 °C (-20 °F)
PMO Maximum operating pressure for saturated steam service 17.5 bar g (254 psi g)
TMO Maximum operating temperature 260 °C @ 0 bar g (500 °F @ 0 psi g)
Minimum operating temperature
Note: For lower operating temperatures consult Spirax Sarco -29 °C (-20 °F)
PMX Maximum differential pressure is limited to the PMO
Designed for a maximum cold hydraulic test pressure of: 150 bar g (2175 psi g)
Temperature °C
Pressure bar g
A
B
C
Steam
saturation
curve
F E D
ED
Pressure psi g
Temperature °F

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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.
Valves are for on/off applications and may be operated manually.
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.
To minimise the danger of abrasive particles damaging the seats, pipeline strainers should be fitted 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 in any position for gas service (see Figure 3 below).
When used on steam services:
1. Fit a trapped drain pocket upstream of the valve.
2. Open valve slowly to prevent the risk of waterhammer damage.
Fig. 3 Correct installation for gas service
Do not mount the valve upside down for liquid
service (Figure 2).
Valves should be installed into the pipeline in the fully
closed position. Prior to welding socket and butt weld
valves into the pipeline, it will be necessary to:
1. Dismantle the end caps from the body.
2. Remove the seats and body gasket.
3. Weld each end cap to the pipeline.
4. Replace the seats and body gasket.
5. Reassemble.
Always open valves slowly to avoid system shocks.
Fig. 2 Incorrect installation for liquid service
3. Installation

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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
two upper bolts and nuts (15 and 16) and and then loosen the two lower bolts. The complete body assembly
can then be removed and any new parts fitted.
Flanged valve maintenance only - Remove the complete flanged valve from the pipeline. Remove the eight
nuts (16) and withdraw the four studs (15). The complete body assembly
can then be removed and new parts fitted.
6.3 To replace seats (5):
-Remove the body as described in Section 6.2.
-With the body removed, remove the seats (5).
-Fit new seats (5) pushing them into the body chamber.
6.4 To replace stem seals (6):
-Remove the body as described in Section 6.2.
-Remove the nuts (9 and 11) and the spring washers (8).
-Replace the stem seals (6).
6.5 Reassembly
Reassemble in reverse order to instructions given above. The studs and nuts (15 and 16) should be tightened
to the recommmended torques shown in Table 1 opposite.
After 24 hours in service, retighten the body studs and nuts.
After installation or maintenance ensure that the system is fully functioning. Carry out tests on any alarms
or protective devices.
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 control valve, and can be operated fully open or fully closed.
4. Commissioning
5. Operation
6. Maintenance

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Table 1 Recommended tightening torques
Item no. Part Size N m (lbf ft)
15
16
Studs
Nuts
¼", 3/8", ½" RB 15 11
½" FB ¾" RB 15 11
¾" FB 1" RB 25 19.0
1" FB 1¼" RB 25 19.0
1¼" FB 1½" RB 40 30.0
1½" FB 2" RB 57 42.0
2" FB 2½" RB 75 55.0
9 and 11 Stem nuts
¼", 3/8", ½" RB 5.4 - 8.1 4 - 6
½" FB ¾" RB 5.4 - 8.1 4 - 6
¾" FB 1" RB 10.8 - 13.5 8 - 10
1" FB 1¼" RB 17.5 - 20.3 13 - 15
1¼" FB 1½" RB 17.5 - 20.3 13 - 15
1½" FB 2" RB 34 - 40 25 - 30
2" FB 2½" RB 40 - 47 30 - 35
9
11
16
6
8
6
5
5
15
Fig. 4

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6
6
5
5
The spare parts available are shown in solid outline. Parts drawn in a grey line are not supplied as spares.
Available spare
Seat and stem seal set 5, 6
How to order spares
Always order spares by using the description given in the column headed 'Available spare' and state the
size and type of ball valve required.
Example: 1 - Seat and stem seal set for a Spirax Sarco ½" M10S2FB ball valve.
Fig. 5 M10S screwed version shown
7. Spare parts