Alfalaval Unique SSV Two Step User manual

TD 461-703
TD 461-702
ESE02027-ENUS6 2019-03
Original manual
Instruction Manual
Unique SSV - Two Step

Table of contents
The information herein is correct at the time of issue but may be subject to change without prior notice
1. EC Declaration of Conformity ....................................................................... 4
2. Safety .................................................................................................... 5
2.1. Important information ............................................................................. 5
2.2. Warning signs ..................................................................................... 6
2.3. Safety precautions ................................................................................ 7
3. Installation .............................................................................................. 9
3.1. Unpacking/delivery ............................................................................... 9
3.2. General installation ................................................................................ 10
3.3. Welding ............................................................................................ 12
3.4. Recycling information ............................................................................. 13
4. Operation ............................................................................................... 14
4.1. Description of valve function ..................................................................... 14
4.2. Operation .......................................................................................... 17
4.3. Troubleshooting ................................................................................... 19
4.4. Recommended cleaning ......................................................................... 20
5. Maintenance ........................................................................................... 22
5.1. General maintenance ............................................................................. 22
5.2. Dismantling the valve ............................................................................. 24
5.3. Elastomer and TR2 seal ring replacement ..................................................... 25
5.4. Valve assembly .................................................................................... 27
5.5. Actuator types .................................................................................... 28
5.6. Actuator bushing replacement .................................................................. 29
5.7. Dismantling of (NC) maintainable actuator ..................................................... 34
5.8. Assembly of maintainable actuator ............................................................. 35
5.9. Dismantling of change-over (NO) maintainable actuator ...................................... 36
5.10.Assembly of maintainable actuator ............................................................. 37
5.11.Changing pneumatic movement on fully maintainable actuator (NC/NO) ................... 38
6. Technical data ......................................................................................... 41
6.1. Technical data ..................................................................................... 41
7. Parts list and Service Kits ........................................................................... 42
7.1. Drawing ............................................................................................ 42
7.2. Unique SSV TR2 - Two Step - Shut off valve .................................................. 44
7.3. Unique SSV TR2 - Two Step - Change over valve ............................................ 46
7.4. Unique SSV Elastomer plug seal - Two Step - Shut off valve ................................ 48
7.5. Unique SSV Elastomer plug seal - Two Step - Change over valve .......................... 50
7.6. Mounting Tool - Unique SSV - Two Step ....................................................... 52
3

1 EC Declaration of Conformity
Revision of Declaration of Conformity 2019-03-01
The Designated Company
Alfa Laval KoldingA/S
Company Name
Albuen 31, DK-6000 Kolding, Denmark
Address
[phone]
Phone No.
hereby declare that
Valve
Designation
Unique SSV Two Step PN10
Type
From serial number 1000000 to 70000000000
is in conformity with the following directive with amendments:
- Machinery Directive 2006/42/EC
- Pressure Equipment Directive 2014/68/EU category 1 and subjected to assessment procedure Module A. May only be
used for fluids in Group 2
The person authorised to compile the technical file is the signer of this document
Global Product Quality Manager
Pumps, Valves, Fittings and Tank Equipment
Lars Kruse Andersen
Title Name
Kolding 2019-03-01
Place Date Signature
4

2 Safety
Unsafe practices and other important information are emphasized in this manual.
Warnings are emphasized by means of special signs.
2.1 Important information
Always read the manual before using the valve!
WARNING
Indicates that special procedures must be followed to avoid serious personal injury.
CAUTION
Indicates that special procedures must be followed to avoid damage to the valve.
NOTE
Indicates important information to simplify or clarify procedures.
Different actuator types for the SSV valve
In June 2016 the below change was implemented and the “removable yoke with bolts” version is thereby phased out and
replaced by the “yoke without bolts” version.
NOTE
It is important to check for warnings marked on the actuator when servicing an actuator - see below table.
Non-maintainable actuator
spring under load and
CANNOT be opened
Fully maintainable actuator
spring cage and can be
opened
Fully maintainable actuator
spring cage and can be
opened
2200-0136_1
*
DO NOT DISASSEMBLE
kg
!
SSV
2200-0134_1
SSV
2200-0135_1
SSV
*) Lock wire opening is locked
- when warning is marked on
actuator
Actuator type
Non-removable yoke Removable yoke with bolts.
If the yoke with bolts is
damaged it has to be replaced
by the “yoke without bolts”
Yoke without bolts
Yoke type
Not possible to service
internally (it is not possible to
change piston O-rings)
Yes Yes
Service
Yes No No
Marked with warnings
From 2006 From 2006 to June 2016 From June 2016
Year of production
5

2 Safety
Unsafe practices and other important information are emphasized in this manual.
Warnings are emphasized by means of special signs.
2.2 Warning signs
General warning !
Caustic agents
Danger of injury (lasermarked on the actuator)
Do NOT attempt to disassemble the actuator due to
spring under load danger!
(The lock wire opening is locked) DO NOT DISASSEMBLE
kg
!
Danger of injury (an extra yellow label marked on the actuator
from June 2016)
Do NOT attempt to cut the actuator open due to
spring under load.
(The lock wire opening is locked). SPRING UNDER LOAD
Do not attempt to cut open
kg
!
Danger of injury (label marked on actuator)
Do NOT attempt to cut the actuator open due to
spring under load
(The lock wire opening is locked)
WARNING
SPRING UNDER LOAD
DO NOT ATTEMPT TO CUT ACTUATOR OPEN
REFER TO SERVICE BULLETIN
!
6

2 Safety
All warnings in the manual are summarized on this page.
Pay special attention to the instructions below so that severe personal injury and/or damagetothevalveareavoided.
2.3 Safety precautions
Actuators
If support air is utilised:
!
- Shock in the actuator must NEVER occur
- Support air on high pressure actuator versions is NOT allowed
To prevent shock in the actuator and to prevent exceeding 145 PSI (10 bar) product pressure, Alfa Laval recommends NOT
to exceed 43.5 PSI (3 bar) support air on the spring side in all the Unique SSV actuators.
If support air is connected always use the 43 PSI (3 bar) air relief fittings = 9611996094 (1/4” = 6,35 mm hose)
Using the 43.5 PSI (3 bar) air relief fitting also extends the service life of the actuator piston o-ring.
Obs. if using a 6 mm hose then use air relief fittings = 9611995903
2200-0168_1
Ø26 (Ø1”)
Pos. no. 5
For actuators, manufactured year 2005-2018, with serial number from 1000000 - 5999999
and from 20000000000 - 59999999999 always use steel adapter (pos 5) = 9614065301
Tighten torque = 23 Ibf-ft (30 Nm)
Ø19 (Ø3/4”)
2200-0169_1
Pos. no. 5
For actuators, manufactured year 2019 --> with serial number from 6000000 to 7000000 and
from 60000000000 to 70000000000 always use steel adapter (pos 5) = 9615374701
Tighten torque = 11 Ibf-ft (15 Nm)
TD 461-990_2
5
Alfa Laval recommends max. 43,5 PSI (3 bar) support air
Always use the 43,5 PSI (3 bar) air relief fittings” on support air.
Alfa Laval article number = 9611996094 (1/4” = 6,35 mm hose)
7

2 Safety
All warnings in the manual are summarized on this page.
Pay special attention to the instructions below so that severe personal injury and/or damage to the valve are avoided.
Installation
Always read the technical data thoroughly (see section )
Always release compressed air after use
Never touch moving parts if the actuator is supplied with compressed air
Never touch the valve or the pipelines when processing hot liquids or when sterilising
Never dismantle the valve with valve and pipelines under pressure
Never dismantlethevalvewhenitishot
!
Never cut the actuator open, due to spring under load
- if marked with this warning
WARNING
SPRING UNDER LOAD
DO NOT ATTEMPT TO CUT ACTUATOR OPEN
REFER TO SERVICE BULLETIN
!
AND
SPRING UNDER LOAD
Do not attempt to cut open
kg
!
Do NOT attempt to disassemble the actuator due to spring under load danger !
DO NOT DISASSEMBLE
kg
!
Operation
Never dismantle the valve with valve and pipelines under pressure
Never dismantlethevalvewhenitishot
Always read the technical data thoroughly (see section )
Always release compressed air after use
Never touch the valve or the pipelines when processing hot liquids or when sterilising
Never touch moving parts if the actuator is supplied with compressed air
Always rinse well with clean water after cleaning
!
Always handle lye and acid with great care
Maintenance
Always read the technical data thoroughly (see section )
Always release compressed air after use
Never service the valve when it is hot
Never service the valve with valve and pipelines under pressure
Never stick your fingers through the valve ports if the actuator is supplied with compressed air
Never touch moving parts if the actuator is supplied with compressed air
Always use Alfa Laval genuine spare parts
!
Never cut the actuator open, due to spring under load danger
- if marked with this warning
WARNING
SPRING UNDER LOAD
DO NOT ATTEMPT TO CUT ACTUATOR OPEN
REFER TO SERVICE BULLETIN
!
AND
SPRING UNDER LOAD
Do not attempt to cut open
kg
!
Do NOT attempt to disassemble the actuator due to spring under load danger !
DO NOT DISASSEMBLE
kg
!
Transportation
Always ensure that compressed air is released
Always ensure that all connections are disconnected before attempting to remove the valve from the installation
Always drain liquid out of valves before transportation
Always use predesigned lifting points if defined
Always ensure sufficient fixing of the valve during transportation - if specially designed packaging material is available, it
must be used
8

3 Installation
The instruction manual is part of the delivery. Study the instructions carefully.
The items refer to parts list and service kits section.
The valve is supplied as separate parts as standard (for welding).
The valve is assembled before delivery, if it is supplied with fittings.
3.1 Unpacking/delivery
Step 1
CAUTION
Alfa Laval cannot be held responsible for incorrect unpacking.
Check the delivery for:
1. Complete valve, shut-off valve or change-over
valve(seesteps2aand2b).
2. Delivery note.
3. Instruction manual.
Step 2
2a
Shut-off valve:
1. Complete actuator.
2. Bonnet (20).
3. Clamp (19).
4. Valve plug (23).
5. Valve body (22).
TD 461-653_1
2b
Change-over valve:
1. Complete actuator.
2. Bonnet (20).
3. 2 x clamp (19).
4. Valve plug (27).
5. Lower valve body (22).
6. Valve seat (28).
7. Upper valve body (26).
TD 461-654_3
UP
Step 3
Remove possible packing materials from the valve/valve parts.
Inspect the valve/valve parts for visible transport damages.
Avoid damaging the valve/valve parts.
9

3 Installation
Study the instructions carefully and pay special attention to the warnings!
The valve has welding ends as standard but can also be supplied with fittings.
3.2 General installation
Step 1
!
-CAUTION
Alfa Laval cannot be held responsible for incorrect installation.
-Always release compressed air after use.
-Always read the technical data thoroughly.
See chapter .
DO NOT DISASSEMBLE
kg
!
Do NOT attempt to disassemble the actuator due to
spring under load danger.
SPRING UNDER LOAD
Do not attempt to cut open
kg
!
AND
WARNING
SPRING UNDER LOAD
DO NOT ATTEMPT TO CUT ACTUATOR OPEN
REFER TO SERVICE BULLETIN
!
If marked with this warning, do NOT attempt to cut
the actuator open, due to spring under load danger.
Step 2
!
Never touch moving parts if the actuator is supplied with
compressed air.
Moving parts! Air
Air
2206-0010
Step 3
To avoid water hammering, it is recommended to install the valve
so that the flow is against the spring closing direction.
Shock in the actuator must never occur.
Avoid water
hammering!
Air
Flow
Flow
2206-0011
10

3 Installation
Study the instructions carefully and pay special attention to the warnings!
The valve has welding ends as standard but can also be supplied with fittings.
Step 4
Avoid stressing the valve.
Pay special attention to:
-Vibrations.
- Thermal expansion of the pipelines.
- Excessive welding.
- Overloading of the pipelines.
Risk of damage!
2206-0012
Step 5
Make sure that the leak detection hole in the valve body:
1. is visible, when mounting the valve vertically
2. always is downwards due to self-draining, when the valve is mounted horizontally.
2200-0172
***
*
* = Leakage detection hole
3.3 Welding
11

3 Installation
Study the instructions carefully.
The valve is supplied as separate parts to facilitate the welding.
The items refer to the parts list and service kits section.
Check the valve for smooth operation after welding.
Step 1
Always install valves with more than one valve body so that the
seals between the valve bodies can be replaced. Do not weld
more than one valve body into the system.
Valve size A (inch) B (inch)
1½” * 30.7
2” * 31.5
2½” * 31.1
3” * 35.8
4” * 35.4
* Depending on body combination and piping solution.
B (incl. top unit)
A*
TD 461-015_1
Step 2
Assemble the valve in accordance with the steps on page 27.
Pay special attention to the warnings!
TD 461-630_1 TD 461-631_1
Step 3
Pre-use check:
1. Supply compressed air to the actuator.
2. Open and close the valve several times to ensure that it operates smoothly.
Pay special attention to the warnings!
NC NO
Air (Two Step stroke)
Air (Main movement)
Air (Main movement)
Air (Two Step stroke)
Open/close! Open/close!
2200-0042 2200-0081_1
12

3 Installation
Study the instructions carefully.
The valve is supplied as separate parts to facilitate the welding.
The items refer to the parts list and service kits section.
Check the valve for smooth operation after welding.
3.4 Recycling information
• Unpacking
- Packing material consists of wood, plastics, cardboard boxes and in some cases metal straps
- Wood and cardboard boxes can be reused, recycled or used for energy recovery
- Plastics should be recycled or burnt at a licensed waste incineration plant
- Metal straps should be sent for material recycling
• Maintenance
- During maintenance oil and wear parts in the machine are replaced
- All metal parts should be sent for material recycling
- Worn out or defective electronic parts should be sent to a licensed handler for material recycling
- Oil and all non metal wearing parts must be taken care of in accordance with local regulations
• Scrapping
- At end of use, the equipment must be recycled in accordance with the relevant, local regulations. Besides the equipment
itself, any hazardous residues from the process liquid must be considered and dealt with in a proper manner. When in doubt,
or in the absence of local regulations, please contact your local Alfa Laval sales company. If the actuator is marked with a
danger warning, do not attempt to cut the actuator open.
DO NOT DISASSEMBLE
kg
!
Do NOT attempt to disassemble the actuator due to spring under load danger!
SPRING UNDER LOAD
Do not attempt to cut open
kg
!
If marked with this warning, do NOT attempt to cut the actuator open, due to spring under load danger.
WARNING
SPRING UNDER LOAD
DO NOT ATTEMPT TO CUT ACTUATOR OPEN
REFER TO SERVICE BULLETIN
!
If marked with this warning, do NOT attempt to cut the actuator open, due to spring under load danger.
13

4Operation
Study the instructions carefully.
The item refer to the parts list and service kits section.
NO= Normally open (pneumatic movement downwards)
NC= Normally closed (pneumatic movemetn upwards)
4.1 Description of valve function
TheUniqueSSVTwostepvalvehastwopistonsinsidetheactuator, which makes it possible to have an intermediate plug
position where all body ends are open.
The Unique SSV Two step valves are made in a Shut-off valve type and a Change-over valve type.
Step 1a
Type Shut-off valve (only NC)
Two step valves as Shut-off (only as NC) can be used for reducing pressure hammers or dosing e.g. in connection with filling of
a vessel where an exact volume is required.
The degree of opening for the intermediate position can be adjusted by removing spacer rings inside the actuator (see 4.5).
TD461-1015
AIR
F
Throttled position can be adjusted by
removing spacers.
Plug opening will increase if spacers
are removed.
TD 461-621_3
S
AIR
Closed Throttled opening
Two step stroke activated
Full open
The plug opening for different shut-off valves and Actuator size is shown below.
Standard Actuator choice
(NC)
High pressure Actuator
(NC)
Dimensions = mm Inch tube DIN tube Inch tube DIN tube
1½”2” 2½”3” 4” 1½”2” 2½”3” 4” 2” 2½”2” 2½”
Fmin.
Two step stroke
(with spacers inside
Actuators)
3 3 32.52.53 3 32.52.56 6 6 6
Fmax.
Two step stroke
(with spacers inside
Actuators)
611 11 14 14 611 11 14 14 9999
S = full stroke opening 20 25 25 30 30 20 25 25 30 30 25 25 25 25
14

4Operation
Study the instructions carefully.
The item refer to the parts list and service kits section.
NO= Normally open (pneumatic movement downwards)
NC= Normally closed (pneumatic movemetn upwards)
Step 1b
Type Change-over valve (NC and NO)
Two step valves as change-over (NC and NO) can be used for drainage of two pipes simultaneously or split of flow in three lines.
The valve has a fixed intermediate position and spring return to the end positions.
Spring return to lower position = NC
AIR
TD461-1016
F
TD 461-624_3
S
AIR
Closed Intermediate position
Two step stroke activated
Open
The plug opening for different shut-off valves and Actuator size is shown below.
Standard Actuator choice
(NC)
High pressure Actuator
(NC)
Dimensions = mm Inch tube DIN tube Inch tube DIN tube
1½”2” 2½”3” 4” 1½”2” 2½”3” 4” 2” 2½”2” 2½”
Fmin.
Fixed intermediate
position
6.5 11 11 14 14 6.5 11 11 14 14 9 9 9 9
S = full stroke opening 17 22 22 27 27 17 22 22 27 27 22 22 22 22
15

4Operation
Study the instructions carefully.
The item refer to the parts list and service kits section.
NO= Normally open (pneumatic movement downwards)
NC= Normally closed (pneumatic movemetn upwards)
Spring return to upper position = NO
AIR
F
AIR
S
TD461-1017
Closed Intermediate position
Two step stroke activated
Open
The plug opening for different Change-over valves and Actuator size is shown below.
Standard Actuator choice
(NC)
High pressure Actuator
(NC)
Dimensions = mm Inch tube DIN tube Inch tube DIN tube
1½”2” 2½”3” 4” 1½”2” 2½”3” 4” 2” 2½”2” 2½”
Fmin.
Fixed intermediate position 11 11 11 14 14 11 11 11 11 11 11 11 11 11
S = full stroke opening 17 22 22 27 27 17 22 22 27 27 22 22 22 22
16

4Operation
Study the instructions carefully and pay special attention to the warnings!
Ensure that the valve operates smoothly.
The items refer to the parts list and service kits section.
4.2 Operation
Step 1
!
-CAUTION
Alfa Laval cannot be held responsible for incorrect installation.
-Always release compressed air after use.
-Always read the technical data thoroughly.
See section .
-Always use Alfa Laval genuine spare parts.
The warranty of Alfa Laval products is dependent on use of
Alfa Laval genuine spare parts.
DO NOT DISASSEMBLE
kg
!
Do NOT attempt to disassemble the actuator due to
spring under load danger.
SPRING UNDER LOAD
Do not attempt to cut open
kg
!
AND WARNING
SPRING UNDER LOAD
DO NOT ATTEMPT TO CUT ACTUATOR OPEN
REFER TO SERVICE BULLETIN
!
If marked with this warning, do NOT attempt to cut
the actuator open, due to spring under load danger.
Step 2
!
Never touch the valve or the pipelines when processing hot
liquids or when sterilising.
Burn hazard!
TD 461-636_4
Step 3
!
Never touch moving parts if the actuator is supplied with
compressed air.
Moving parts!
Air
Air
TD 461-742_3
17

4Operation
Study the instructions carefully and pay special attention to the warnings!
Ensure that the valve operates smoothly.
The items refer to the parts list and service kits section.
Step 4
Lubrication of valves:
1. Ensure smooth movement between lip seal (A) and
plug stem (B).
2. Lubricate the lip seal with Klüber Paraliq GTE 703 if necessary
(see section 4.1 Description of valve function).
Shut-off
valve
Lubricate Change-over valve
TD 461-637_2
A
B
TD 461-638_2
A
B
Step 5
Lubrication of actuator
1. Ensure smooth movement of the actuator (the actuator is
lubricated before delivery).
2. Lubricate all seals with Molykote Longterm 2 plus if necessary.
Lubricate
2206-0009
18

4Operation
Pay attention to possible faults. Study the instructions carefully.
The items refer to the parts list and service kits section.
4.3 Troubleshooting
NOTE!
Study the maintenance instructions carefully before replacing worn parts. - See section 4.1 Description of valve function!
Problem Cause/result Repair
External product leakage Worn or product affected lip
seal and/or O-ring
- Replace the seals
- Replace with seals of a
different rubber grade
Internal product leakage - Worn or product affected
plug seal - Replace the seal - Replace with a seal of a
different rubber grade
- Product deposits on
the seat and/or plug - Frequent cleaning
- Product pressure exceeds
actuator specification - Replace with a high pressure actuator - Use auxiliary air on the spring side
(do not exceed 43.5 PSI (3 bar)) Alfa
Laval article number = 9611996094.
See section and section , step 4.
- Reduce product pressure
Water hammer The flow direction is the
same as the closing direction
- The flow direction should be
against the closing direction.
- Throttle air release of solenoid in
top unit
The valve does not
open/close
Product pressure exceeds
actuator specification
- Replace with a high pressure actuator
- Reduce product pressure
- Use auxiliary air on the spring side.
Always use the pressure relief fittings
43.5 PSI (3 bar) on support side.
Alfa Laval article number =
9611996094
If marked with a danger warning, do NOT attempt to cut the actuator open, due to spring under load.
DO NOT DISASSEMBLE
kg
!
Do NOT attempt to disassemble the actuator due to spring under load danger.
SPRING UNDER LOAD
Do not attempt to cut open
kg
!
Do NOT attempt to cut the actuator open due to spring under load danger.
WARNING
SPRING UNDER LOAD
DO NOT ATTEMPT TO CUT ACTUATOR OPEN
REFER TO SERVICE BULLETIN
!
If marked with a danger warning, do NOT attempt to cut the actuator open, due to spring under load.
19

4Operation
The valve is designed for cleaning in place (CIP). CIP = Cleaning In Place.
Study the instructions carefully and pay special attention to the warnings!
NaOH = Caustic Soda.
HNO3= Nitric acid.
4.4 Recommended cleaning
Step 1
Always handle lye and acid with great care.
Caustic danger!
Always use
rubber gloves!
Always use
protective goggles!
Step 2
!
Never touch the valve or the pipelines when sterilising.
Burn hazard!
TD 461-636_4
Step 3
Clean the plug and the seats correctly.
Pay special attention to the warnings!
Lift and lower valve plug momentarily!
Shut-off valve Change-over valve
TD 461-031_1
TD 461-029_1
Step 4
Examples of cleaning agents:
Use clean water, free from clorides.
1. 1% by weight NaOH at 158oF
2.2 lb
NaOH +26.4 gal water =Cleaning agent.
= Cleaning agent.
0.6 gal
33% NaOH +26.4 gal water
2. 0.5% by weight HNO3at 158oF
= Cleaning agent.
0.2 gal
53% HNO3+26.4 gal
water
20