Spirax Sarco CVS10M User manual

IM-P154- 09-US Issue 1 1
CVS10M Sanitary Check Valve
1. Safety information
2. General product information
3. Installation
4. Commissioning
5. Spare parts and
Maintenance
© Copyright 2021
Printed in US
CVS10M
Sanitary Check Valve
Installation and Maintenance Instructions
IM-P154- 09-US
Issue 1

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CVS10M Sanitary Check Valve

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1. Safety information
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, body markings and Technical
Information Sheet, check that the product is suitable for the intended use/application.
i) 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.
ii) Determine the correct installation situation and direction of fluid flow. For applications
that are self-draining they must be with the flow vertically downwards.
iii) Spirax Sarco products are not intended to withstand external stresses that maybe 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 protective 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 the danger of burns and
consider whether protective clothing (including saftey glasses) is required.
Viton body seal
If the Viton components have been subjected to a temperature approaching 315°C (599°F)
or higher they may have decomposed and formed hydroflouric acid. Avoid skin contact and
inhalation of any fumes as the acid will cause deep skin burns and damage the respitory
system.
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 some products will exceed
temperatures of 100°C (212°F).
Many 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
The product is recyclable. No ecological hazard is anticipated with the disposal of this
product providing due care is taken, EXCEPT:
Viton body seal:
-In compliance with National and Local regulations waste parts can be landfilled.
-Waste parts can be incinerated, but a scrubber must be used to remove Hydrogen
Fluoride, which is evolved from the product and with compliance to National and Local
regulations.
-Is insoluble in acquatic media.
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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CVS10M Sanitary Check Valve
2. General product information
2.1 Description
The CVS10M sanitary in-line spring assisted check valve range are manufactured from 316L stainless
steel and prevent reverse flow in fluid lines. They are available with either soft
seats for process gasses and liquids, or with a metal seat for use within steam systems. They are
suitable for a wide range of high purity applications in the food, medical, and pharmaceutical industries.
For use with other medium please consult Spirax Sarco.
Available types and surface finish:
CVS10M is available in both 25 Ra and 15 Ra internal surface finish.
CVS10M comes standard with a EPDM gasket body seal for applications under 300°F. For higher
temperature applications, a Tru-Flex(R) or Viton(R) gasket body seal is available.
Standards:
-All wetted elastomers / polymers comply with FDA regulation CFR 21, paragraph 177, section 2600
for EPDM and Viton and section 1550 for FEP-Silicone and TFM PTFE.
-The CVS10M is designed in accordance with ASME-BPE.
-The CVS10M meets 3A Standand 58-01.
Certification
This product is available with the following certification:
-EN 10204 3.1 material certification as standard.
-Typical surface finish certificates.
-FDA approval certificates for elastomers.
-USP class VI approval certificates.
-ADI free certificate.
Note: All certification / inspection listed above will come as standard for the CVS10M.
Packaging
Packaging for this product is conducted in a clean environment, segregated from other non stainless
steel products, and in accordance with the current edition of ASME BPE. Inlet and outlet connections
are capped and the product is sealed in a plastic bag prior to boxing.
Note: For further information see TI-P154-08-US.
2.2 Sizes and pipe connections
½" to 4" to ASME BPE available as standard.
Sanitary clamp:
ASME BPE clamp.

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Fig. 1 Vertical option shown
2.3 Pressure/temperature rating
Temperature (°F) Pressure Material Temperature Limit
100 150
200 125
300 115 EPDM, TufFlex ® (1)
400 105 Viton®
Note:
(1) PTFE grafted to an EPDM rubber inner core. Good for steam applications.
Meets USDA, FDA and 3A Sanitary Standards and U.S. Pharmacopeia Class VI Certification.

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2.4 Materials
No. Part
1Body A351 CF3M
2Seat A351 CF3M
3Disc 316 SS
4Spring 316 SS (electropolished)
5Guide assembly 316 SS
6Gasket body seal EPDM
(-75 °F to 300 °F)**
7Clamp 304 SS
5
1
4
7
6
3
Stem (2)
2
Flow
Notes
** Other gasket body seal materials available
upon request
(2) Sizes 2½", 3", 4"
Fig. 2

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Before actioning any installation, observe the ‘Safety information’ in Section 1.
Referring to the Installation and Maintenance Instructions, body markings and Technical Information
Sheet, check that the product is suitable for the intended installation:
3.1 Check materials, pressure and temperature and their maximum values. If the maximum
operating limit of the product is lower than that of the system in which it is being fitted, ensure
that a safety device is included in the system to prevent overpressurisation.
3.2 Determine the correct installation situation and the direction of flow.
3.3 Remove protective covers from all connections and protective film from all name-plates, where
appropriate, before installation on steam or other high temperature applications.
3.4 The CVS10M can be fitted in both horizontal and vertical lines. For applications that are self-
draining it must be installed in such a way that the flow is vertical downwards.
3.5 Fittings, clamps and gaskets for the connecting tubing are not supplied.
Note: This product must be handled carefully to ensure that the surface finish is not damaged
3. Installation
After installation or maintenance ensure that the system is fully functioning. Carry out tests on any
alarms or protective devices.
Note: If installed on a steam / condensate system, it is very important that the pressure is built up
slowly to avoid possible damage to the unit.
4. Commissioning

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5. Spare parts and Maintenance
Note: Before actioning any maintenance, observe the 'Safety information' in Section 1
Before undertaking any maintenance on this product, it must be isolated from the supply and return
lines and any pressure allowed to normalise to atmosphere. The unit should then be allowed to cool.
5.1 Spare parts
The CVS10M sanitary in-line spring assisted check valve range are manufactured from 316L stainless
steel and prevent reverse flow in fluid lines. They are suitable for a wide range of high purity applications
in the food, medical, and biopharmaceutical industries. For use with other medium please consult
Spirax Sarco.
Available spares
Repair Kit (includes spring, EPDM body seal, disc and disc guide)
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 check valve.
Example: 1 off Seal kit for a 1" Spirax Sarco CVS10M sanitary check valve with EPDM seat having
ASME BPE clamp ends.
5.2 Maintenance procedures
Disassembly
1. To access valve internals, loosen the wing nut of the sanitary clamp and remove the clamp from
the center of the valve .
2. Carefully pull apart the valve body and seat.
Note that once the seat has been removed from the valve body, the disc and spring are loose
pieces.
3. Remove the gasket from the valve body (or seat) and inspect it carefully for signs of damage
or wear. The disc, spring, and disc guide assembly may be removed from the valve body for
inspection and cleaning.
4. Seating surfaces may be cleaned using a soft cloth and appropriate solvent. Avoid scratching
the seating surface.
Reassembly
1. Place disc guide assembly in valve body. Orientation of the guide assembly legs is not critical.
Place spring, large end first , onto guard spring hub.
2. Position the disc over the spring and between the four legs of the guide assembly. Be sure the
valve disc is replaced with the "seat side" (marked on disc) against the valve seat.
3. Place the gasket into the groove in the valve body. Place the valve seat onto the valve body
ensuring that the valve seat is centered up on the disc and that the gasket engages in the groove
of both the valve body and the seat.
4. Reaching through the end of the valve seat, depress the disc a couple of times to check for free
disc movement. Wrap the clamp around the valve making sure the valve body and seat are fully
captured. Tighten the wing nut of the clamp to approximately 20 ft-lbs.
5. Re-install the valve in the line with the flow arrow on the body pointing in the direction of flow .

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Construction
materials
Body 316L SS
Seat 316L SS
Disc 316 SS
Spring 316 SS (electropolished)
Guide Assembly 316 SS
Body Seal EPDM (- 75 °F to +300° F)
Clamp 304 SS
Internal Surface Finish 25 Ra
Horizontal valve
Vertical valve
Valve body
Sanitary clamp
Seat
Disc
Spring
Flow
Flow
Seat
Sanitary clamp
Spring
Valve body
Disc
Fig. 3 Vertical and horizontal valves

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