Spirax Sarco M80i ISO User manual

IM-P173-01-EN-ISS1 CMGT 1
1. Safety information
2. General product
information
3. Installation
4. Commissioning
5. Operation
6. Maintenance and
Spare parts
© Copyright 2018
Printed in GB
IM-P173-01-EN-ISS1
CMGT
1820050/3
M70i ISO and M80i ISO
Stainless Steel Ball Valves for Sanitary Systems
Installation and Maintenance Instructions
PREVIOUS REFERENCE NO. IM-P182-07
M70i ISO
M80i ISO

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1. Safety information
Safe operation of these products can only be guaranteed if they are 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 products listed below comply with the requirements of the European Pressure
Equipment Directive (PED) and carry the mark when so required.
The products fall within the following Pressure Equipment Directive categories:
Product Group 1
Gases
Group 2
Gases
Group 1
Liquids
Group 2
Liquids
M70i ISO and M80i ISO
½" SEP SEP SEP SEP
¾" SEP SEP SEP SEP
1" SEP SEP SEP SEP
1½" 2 1 2 SEP
2" 2 1 2 SEP
2½" 2 1 2 SEP
3" 2 1 2 SEP
4" 2 1 2 SEP

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i) The products have been specifically designed for use on clean/pure steam
and other high purity applications that are in Group 2 of the above mentioned
Pressure Equipment Directive. They can also be used on Fluids which are
included in Group 1 of the Pressure Equipment Directive. The products' use
on other fluids may be possible but, if this is contemplated, Spirax Sarco
should be contacted to confirm the suitability of the product for the application
being considered.
ii) Check material suitability, pressure and temperature and their maximum and
minimum values. If the maximum operating limits of the product are lower than
those of the system in which it is being fitted, or if malfunction of the product
could result in a dangerous overpressure or overtemperature occurrence, ensure
a safety device is included in the system to prevent such over-limit situations.
iii) Determine the correct installation situation and direction of fluid flow.
iv) 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.
v) 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.
1.4 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.

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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.
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.

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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 these products
may reach temperatures of 200 °C (392 °F).
These products are 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 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.
1.16 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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2. General product information
2.1 General description
The M70i and M80i 316L stainless steel, three-piece body ball valves have ISO mounting
as standard. They have been designed in accordance with ASME BPE for use on
applications like liquids and gases utility and process support applications, such as clean
steam*. These valves should be used as isolation valves, not a control valves.
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 easily accomplished by tting a BVA 300 series pneumatic actuator available
from Spirax Sarco. For further details contact Spirax Sarco.
Standards
These products fully comply with the requirements of the European Pressure Equipment
Directive (PED) and carry the mark when so required.
Certification
These products are available with the following certification:
-Material certification to EN 10204 3.1
-Elastomer FDA/USP compliance certificate.
-Surface finish certification.
Note:
All certification/inspection requirements must be stated at the time of order placement.
Available types
M70iV CF ISO Virgin PTFE TFM 1600, with Cavity llers
M70iVEP CF ISO Virgin PTFE TFM 1600 electropolished to 0.375 micron Ra, with
Cavity llers
M70iG CF ISO Mineral lled PTFE,with Cavity llers
M70iGEP CF ISO Mineral lled PTFE electropolished to 0.375 micron Ra, with
Cavity llers
M70iV ISO Virgin PTFE TFM 1600
M70iVEP ISO Virgin PTFE TFM 1600 electro-polished to 0.375 micron Ra
M70iG ISO Mineral filled PTFE
M70iGEP ISO Mineral filled PTFE electro-polished to 0.375 micron Ra
M80iVEP ISO Virgin PTFE TFM 1600 electro-polished to 0.375 micron Ra
M80iVEP CF ISO Virgin PTFE TFM 1600 electropolished to 0.375 micron Ra with
Cavity fillers

IM-P173-01-EN-ISS1 CMGT 7
Fig. 2 M80i ISO - 2½", 3" and 4"
Please note that the end caps for the 3" and 4" units have a different design which uses
6 x studs enclosing the body section.
Fig. 1 M70i ISO - ½", ¾", 1", 1½" and 2"
2.2 Sizes and pipe connections
M70i ½", ¾", 1", 1½" and 2"
Sanitary clamp (ASME BPE)
Extended O/D tube weld ends (ETO) (ASME BPE)
M80i 2½", 3" and 4"
Sanitary clamp (ASME BPE)
Extended O/D tube weld ends (ETO) (ASME BPE)
*Note: Steam Service: For steam applications, cavity filler is not recommended

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0 10 20 30 40 50 52 62
0
100
200
300
392
-29
0
50
100
150
200
0 100 200 300 500400 600 700 800 899
0 10 20 30 40 50
0
100
200
300
-20
0
50
100
150
180 0 100 200 300 500400 600 700
2.3 Pressure/temperature limits
Temperature °C
Pressure bar g
M70i ISO
Temperature °C
Pressure bar g
M80i ISO
Temperature °F
Pressure psi g
Temperature °F
Pressure psi g
Steam
saturation
curve *
Steam
saturation
curve *
The product must not be used in this region.
A - BVirgin PTFE TFM 1600.
A - CMineral filled PTFE.
*Note: Steam Service: For steam applications, cavity filler is not recommended
A
A
B
CB

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Body design conditions
M70i PN63
M80i 720 psi g
PMA Maximum allowable
pressure
M70i 62 bar g @ 20 °C (899 psi g @ 68 °F)
M80i 50 bar g @ 109 °C (720 psi g @ 228 °F)
TMA Maximum allowable
temperature
M70i 200 °C @ 0 bar g (392 °F @ 0 psi g )
M80i 180 °C @ 0 bar g (356 °F @ 0 psi g)
Minimum allowable
temperature
M70i -29 °C (-20 °F)
M80i -20 °C (-4 °F)
PMO
Maximum
operating
pressure for
saturated
steam
service *
M70i ISO
Virgin PTFE TFM 1600 7.0 bar g (101 psi g)
Mineral filled PTFE 8.5 bar g (123 psi g)
M80i ISO Virgin PTFE TFM 1600 7.0 bar g (101 psi g)
TMO Maximum operating
temperature
M70i 200 °C @ 0 bar g (392 °F @ 0 psi g )
M80i 180 °C @ 0 bar g (356 °F @ 0 psi g)
Minimum operating temperature
M70i -29 °C (-20 °F)
M80i -20 °C (-4 °F)
Note: For lower operating temperatures consult Spirax Sarco.
DPMX Maximum di󰀨erential pressure is limited to the PMO
Designed for a maximum cold
hydraulic test pressure of:
M70i 93 bar g (1348 psi g)
M80i 75 bar g (1 087 psi g)

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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 and outlet
pipework and valve are all on the same axis.
Valves are for on/off applications and may be operated manually.
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
stem vertical and upwards. The valve can be installed in any position for gas service (see
Figure 4 opposite).
When used on steam services:
(The alternative with Cavity filler is not recommended when used on steam service)
1. Fit a trapped drain pocket upstream of the valve.
2. Open valve slowly to prevent the risk of waterhammer damage.
Do not mount the valve upside down for liquid service (Figure 3).
3. Installation
Fig. 3 Incorrect installation for liquid service
Valves should be installed into the pipeline in the fully closed position.
Always open valves slowly to avoid system shocks.

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Fig. 4 Correct installation for gas service
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. 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, and can be operated fully open, or fully closed.

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6. Maintenance and spare parts
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 nuts and bolts (see Table 1 for item no.) and loosen the
lower two. The complete body assembly can then be removed and any new parts fitted
- See Section 6.3 for the M70i ISO and Section 6.4 for the M80i ISO spare parts and
maintenance instructions.
Table 1 Recommended tightening torques
Part Item no. Size N m (lbf ft)
Nuts and bolts
14 M70i ISO
½" and ¾" 15 11.0
1" 25 18.0
1½" 57 42.0
2" 75 55.0
3M80i ISO
2½" 80 60.0
3" 90 66.5
4" 130 97.0
Stem nut
10 M70i ISO
½" and ¾" 14 10.4
1" 20 14.7
1½" 40 29.5
2" 47 34.6
17 M80i ISO
2½" 42 30.5
3" 42 30.5
4" 51 37. 0

IM-P173-01-EN-ISS1 CMGT 13
5
18
6
6
151551616
Fig. 5 M70i ISO Version with Cavity filler is shown
17
14
14
10
6.3 Spare parts for the M70i ISO and maintenance instructions
6.3.1 Available spares
The spare parts available are shown in solid outline. Parts drawn in a grey line are not
supplied as spares:
M70i ISO Seat and seal set 5, 6, 16, 18
M70i CF ISO Seat and seal set with cavity ller 5, 6, 15, 16, 18
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 - Virgin PTFE TFM 1600 seat and seal set with cavity filler for a Spirax Sarco
½" M70i CF ISO forged stainless steel ball valve.

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6.3.2 To replace seats and body gasket (and cavity fillers, if applicable)
-Remove the body as described in Section 6.2.
-With the body removed, remove the seats (5) and body gasket (16).
-Fit new seats (5) and body gasket (16), pushing them into the body recesses.
6.3.3 To replace stem seals
-Remove the body as described in Section 6.2.
- Make sure the valve is in Closed position
- Remove the stem nut (10)
- Remove the handle (12) and the lock washer (9)
- Remove the compression nut (8).
- Remove the Belleville washers (17) and the spacer (7)
- Remove the seats (5), body gasket (16) and Cavity llers (15) if applicable.
- Remove the ball (3) by pushing it to any of the sides
-Remove the stem (4) by pushing it downwards towards the central chamber of the
body (1)
-Replace the stem seals (6 and 18).

IM-P173-01-EN-ISS1 CMGT 15
5
18
6
6
51616
Fig. 6 M70i ISO Version with cavity filler is shown
6.3.4 Reassembly
Reassemble in reverse order to the instructions given above. The securing bolts and
nuts (14) should be tightened to the recommmended torques shown in Table 1.
After 24 hours in service, retighten body bolts.
17
10
12
9
8
7
4
15 3 1 15

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6.4 Spare parts for the M80i ISO and maintenance instructions
6.4.1 Available spares
The spare parts available are shown in solid outline. Parts drawn in a grey line are not
supplied as spares:
M80i ISO Seats, stem seals, stem ´O´ring, body seals kit, packing
follower and thrust washer 5, 6, 11, 16, 18, 19
M80i CF ISO Integrated seat and cavity ller, stem seals, stem 'O'
ring, body seals kit, packing follower and thrust washer 5a, 6, 11, 16, 18, 19
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 - Integrated seat and cavity filler, stem seals, stem 'O' ring, body seals kit,
packing follower and thrust washer for a Spirax Sarco 4" M80iV ISO cast stainless steel
ball valve.
Fig. 7 M80i ISO
Note: The main spares drawing illustrates
the 2½" unit. The same spares are available
for the 3" and 4" units.
19
5/5a
11
6
16
The 2½" unit has 4 x bolts,
nuts and washers The 3" and 4" units have
6 x studs and 12 x nuts
and washers
17
16
18
5/5a
10
12
8
7
4
3 1
9

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6.4.2 To replace seats and body gasket
-Remove the body as described in Section 6.2.
-With the body removed, remove the seats (5) and body gasket (16).
-Fit new seats (5) and body gasket (16), pushing them into the body recesses.
6.4.3 To replace stem components
-Remove the body as described in Section 6.2.
- Make sure the valve is in Closed position
- Remove the stem nut (10)
- Remove the handle (12) and the lock washer (9)
- Remove the compression nut (8).
- Remove the Belleville washers (17) and the spacer (7)
- Remove the seats (5/5a)and body gasket (16).
- Remove the ball (3) by pushing it to any of the sides
-Remove the stem (4) by pushing it downwards towards the central chamber of the
body (1)
- Replace the stem seals (6), stem ´O´ ring (11), packing follower (18) and thrust
washer (19).

IM-P173-01-EN-ISS1 CMGT18
6.4.4 Reassembly
Reassemble in reverse order to the instructions given above. The securing bolts and nuts
(14) should be tightened to the recommmended torques shown in Table 1, page 12.
After 24 hours in service, retighten body bolts.
19
5/5a
11
6
16
The 2½" unit has 4 x bolts,
nuts and washers
Fig. 8
The 3" and 4" units have
6 x studs and 12 x nuts
and washers
17
16
18
5/5a
10
12
8
9
7
4
3 1

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