Alfalaval Unique SSV User manual

ALFA LAVAL UNIQUE SSV Y-BODY VALVE INSTRUCTION MANUAL—REV 3/19
TD 461-803
ESE00690-ENUS5 2019-03
Original manual
Instruction Manual
Unique SSV Valve Y-body

ALFA LAVAL UNIQUE SSV Y-BODY VALVE INSTRUCTION MANUAL—REV 3/19
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ALFA LAVAL UNIQUE SSV Y-BODY VALVE INSTRUCTION MANUAL—REV 3/19
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 ..................................................................................... 5
2.3. Safety precautions ................................................................................ 6
3. Installation .............................................................................................. 8
3.1. Unpacking/delivery ............................................................................... 8
3.2. General installation ................................................................................ 9
3.3. Welding ............................................................................................ 11
3.4. Recycling information ............................................................................. 12
4. Operation ............................................................................................... 13
4.1. Operation .......................................................................................... 13
4.2. Troubleshooting ................................................................................... 15
4.3. Recommended cleaning ......................................................................... 16
5. Maintenance ........................................................................................... 18
5.1. General maintenance ............................................................................. 18
5.2. Dismantling of valve .............................................................................. 20
5.3. Plug Seal replacement ........................................................................... 20
5.4. Valve assembly .................................................................................... 21
5.5. Actuator bushing replacement .................................................................. 21
6. Technical data ......................................................................................... 22
6.1. Technical data ..................................................................................... 22
7. Parts list and Service Kits ........................................................................... 23
7.1. Unique SSV Valve - Y-body ...................................................................... 23
3
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ALFA LAVAL UNIQUE SSV Y-BODY VALVE INSTRUCTION MANUAL—REV 3/19
1 EC Declaration of Conformity
Revision of Declaration of Conformity 2009-12-29
The Designated Company
Alfa Laval Kolding A/S
Company Name
Albuen 31, DK-6000 Kolding, Denmark
Address
[phone]
Phone No.
hereby declare that
Valve
Designation
Unique SSV PN10
Type
From serial number 1000000 to 70000000000
is in conformity with the following directive with amendments:
- Machinery Directive 2006/42/EC
- Regulation (EC) No 1935/2004
- Pressure Equipment Directive 97/23/EC category 1 and subjected to assessment procedure Module A.
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 2016-12-03
Place Date Signature
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ALFA LAVAL UNIQUE SSV Y-BODY VALVE INSTRUCTION MANUAL—REV 3/19
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
A
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m
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f
f
o
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e
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u
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i
i
n
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g
g
t
t
h
h
e
e
v
v
a
a
l
l
v
v
e
e
!
!
W
W
A
A
R
R
N
N
I
I
N
N
G
G
Indicates that special procedures must be followed to avoid serious personal injury.
C
C
A
A
U
U
T
T
I
I
O
O
N
N
Indicates that special procedures must be followed to avoid damage to the valve.
N
N
O
O
T
T
E
E
Indicates important information to simplify or clarify procedures.
2.2 Warning signs
General warning:
Caustic agents:
5
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ALFA LAVAL UNIQUE SSV Y-BODY VALVE INSTRUCTION MANUAL—REV 3/19
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.
2.3 Safety precautions
A
A
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c
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u
u
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o
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If support air is utilised:
!
- Shock in the actuator must N
N
E
E
V
V
E
E
R
R
occur
- Support air on high pressure actuator versions is N
N
O
O
T
T
allowed
To prevent shock in the actuator and to prevent exceeding 145 PSI (10 bar) product pressure, Alfa Laval recommends N
N
O
O
T
T
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”)
P
P
o
o
s
s
.
.
n
n
o
o
.
.
5
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
P
P
o
o
s
s
.
.
n
n
o
o
.
.
5
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)
6
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ALFA LAVAL UNIQUE SSV Y-BODY VALVE INSTRUCTION MANUAL—REV 3/19
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.
I
I
n
n
s
s
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a
a
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:
:
A
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read the technical data thoroughly (See chapter 6 Technical data) !
A
A
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a
a
y
y
s
s
release compressed air after use
N
N
e
e
v
v
e
e
r
r
touch the moving parts if the actuator is supplied with compressed air
N
N
e
e
v
v
e
e
r
r
touch the valve or the pipelines when processing hot liquids or when sterilizing
N
N
e
e
v
v
e
e
r
r
dismantle the valve with valve and pipelines under pressure
N
N
e
e
v
v
e
e
r
r
dismantlethevalvewhenitishot
O
O
p
p
e
e
r
r
a
a
t
t
i
i
o
o
n
n
:
:
N
N
e
e
v
v
e
e
r
r
dismantle the valve with valve and pipelines under pressure !
N
N
e
e
v
v
e
e
r
r
dismantlethevalvewhenitishot
A
A
l
l
w
w
a
a
y
y
s
s
read the technical data thoroughly (See chapter 6 Technical data)
A
A
l
l
w
w
a
a
y
y
s
s
release compressed air after use
N
N
e
e
v
v
e
e
r
r
touch the valve or the pipelines when processing hot liquids or when sterilizing
N
N
e
e
v
v
e
e
r
r
touch the moving parts if the actuator is supplied with compressed air
A
A
l
l
w
w
a
a
y
y
s
s
rinse well with clean water after the cleaning
A
A
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w
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a
a
y
y
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handle lye and acid with great care
M
M
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n
a
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n
n
c
c
e
e
:
:
A
A
l
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a
a
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s
s
read the technical data thoroughly (See chapter 6 Technical data) !
A
A
l
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w
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a
a
y
y
s
s
release compressed air after use
N
N
e
e
v
v
e
e
r
r
servicethevalvewhenitishot
N
N
e
e
v
v
e
e
r
r
service the valve with valve and pipelines under pressure
N
N
e
e
v
v
e
e
r
r
stick your fingers through the valve ports if the actuator is supplied with compressed air
N
N
e
e
v
v
e
e
r
r
touch the moving parts if the actuator is supplied with compressed air
7
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ALFA LAVAL UNIQUE SSV Y-BODY VALVE INSTRUCTION MANUAL—REV 3/19
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
S
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p
p
1
1
C
C
A
A
U
U
T
T
I
I
O
O
N
N
Alfa Laval cannot be held responsible for incorrect unpacking.
C
C
h
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y
y
f
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o
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:
:
1. Complete valve, shut-off valve (RA) or change-over
valve (RA) (see steps 2a and 2b).
2. Delivery note.
3. Instruction manual.
S
S
t
t
e
e
p
p
2
2
Complete actuator
1. Bonnet (20).
2. upper clamp (19).
3. Valve plug (36).
4. Valve body (22).
5. Lower clamp (61)
TD 461-775
S
S
t
t
e
e
p
p
3
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.
8
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ALFA LAVAL UNIQUE SSV Y-BODY VALVE INSTRUCTION MANUAL—REV 3/19
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
S
S
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e
e
p
p
1
1
A
A
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a
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s
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read the technical data thoroughly.
See chapter 6 Technical data
A
A
l
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w
w
a
a
y
y
s
s
release compressed air after use.
C
C
A
A
U
U
T
T
I
I
O
O
N
N
Alfa Laval cannot be held responsible for incorrect installation.
S
S
t
t
e
e
p
p
2
2
N
N
e
e
v
v
e
e
r
r
touch moving parts if the actuator is supplied with
compressed air.
M
M
o
o
v
v
i
i
n
n
g
g
p
p
a
a
r
r
t
t
s
s
!
!
Air
Air
TD 461-760
S
S
t
t
e
e
p
p
3
3
It is recommended to install the valve so that the flow is against
the closing direction to avoid water hammering. A
A
v
v
o
o
i
i
d
d
w
w
a
a
t
t
e
e
r
r
h
h
a
a
m
m
m
m
e
e
r
r
i
i
n
n
g
g
!
!
Inlet
TD 461-761
9
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ALFA LAVAL UNIQUE SSV Y-BODY VALVE INSTRUCTION MANUAL—REV 3/19
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.
S
S
t
t
e
e
p
p
4
4
Avoid stressing the valve.
P
P
a
a
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p
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c
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a
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n
n
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o
o
:
:
- Vibrations.
- Thermal expansion of the pipelines.
- Overloading of the pipelines.
R
R
i
i
s
s
k
k
o
o
f
f
d
d
a
a
m
m
a
a
g
g
e
e
!
!
TD 461-762
S
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e
p
p
5
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
10
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ALFA LAVAL UNIQUE SSV Y-BODY VALVE INSTRUCTION MANUAL—REV 3/19
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.
3.3 Welding
S
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e
p
p
1
1
A
A
l
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w
w
a
a
y
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s
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)
2” * 18.8
2½” * 19.3
3” * 22.2
4” * 23.8
* Depending on body combination and piping solution.
incl.
top
unit
TD 461-763
A
S
S
t
t
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e
p
p
2
2
Assemble the valve in accordance with the steps on page .
P
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a
a
y
y
s
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p
p
e
e
c
c
i
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a
a
l
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a
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n
n
t
t
i
i
o
o
n
n
t
t
o
o
t
t
h
h
e
e
w
w
a
a
r
r
n
n
i
i
n
n
g
g
s
s
!
!
TD 461-764
S
S
t
t
e
e
p
p
3
3
P
P
r
r
e
e
-
-
u
u
s
s
e
e
c
c
h
h
e
e
c
c
k
k
:
:
1. Supply compressed air to the actuator.
2. Open and close the valve several times to ensure that it
operates smoothly.
P
P
a
a
y
y
s
s
p
p
e
e
c
c
i
i
a
a
l
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a
a
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e
e
n
n
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i
i
o
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n
n
t
t
o
o
t
t
h
h
e
e
w
w
a
a
r
r
n
n
i
i
n
n
g
g
s
s
!
!
Air
Air
Open/
close TD 461-765
11
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ALFA LAVAL UNIQUE SSV Y-BODY VALVE INSTRUCTION MANUAL—REV 3/19
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
•
•
U
U
n
n
p
p
a
a
c
c
k
k
i
i
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g
g
- 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
•
•
M
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e
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a
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e
e
- 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 wear parts must be taken care of in agreement with local regulations
•
•
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g
- At end of use, the equipment shall be recycled according to relevant, local regulations. Beside 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 the local Alfa Laval sales company
12
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ALFA LAVAL UNIQUE SSV Y-BODY VALVE INSTRUCTION MANUAL—REV 3/19
4 Operation
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.
4.1 Operation
S
S
t
t
e
e
p
p
1
1
A
A
l
l
w
w
a
a
y
y
s
s
read the technical data thoroughly.
See chapter 6 Technical data
A
A
l
l
w
w
a
a
y
y
s
s
release compressed air after use.
C
C
A
A
U
U
T
T
I
I
O
O
N
N
Alfa Laval cannot be held responsible for incorrect operation.
S
S
t
t
e
e
p
p
2
2
N
N
e
e
v
v
e
e
r
r
touch the valve or the pipelines when processing hot liquids
or when sterilizing. B
B
u
u
r
r
n
n
h
h
a
a
z
z
a
a
r
r
d
d
!
!
TD 461-766
S
S
t
t
e
e
p
p
3
3
N
N
e
e
v
v
e
e
r
r
touch the moving parts if the actuator is supplied with
compressed air.
M
M
o
o
v
v
i
i
n
n
g
g
p
p
a
a
r
r
t
t
s
s
!
!
Air
Air
TD 461-760
S
S
t
t
e
e
p
p
4
4
L
L
u
u
b
b
r
r
i
i
c
c
a
a
t
t
i
i
o
o
n
n
o
o
f
f
v
v
a
a
l
l
v
v
e
e
s
s
:
:
1. Ensure smooth movement between lip seal (25) and
plug stem (36).
2. Lubricate the lip seal with Klüber Paraliq GTE 703 if necessary
(see section 5.1).
TD 461-767
36
25
13
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ALFA LAVAL UNIQUE SSV Y-BODY VALVE INSTRUCTION MANUAL—REV 3/19
4 Operation
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.
S
S
t
t
e
e
p
p
5
5
L
L
u
u
b
b
r
r
i
i
c
c
a
a
t
t
i
i
o
o
n
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o
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f
f
a
a
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u
u
a
a
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o
o
r
r
1. Ensure smooth movement of the actuator (the actuator is
lubricated before delivery).
2. Lubricate all seals with Molykote Longterm 2 plus if necessary.
TD 461-768
14
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ALFA LAVAL UNIQUE SSV Y-BODY VALVE INSTRUCTION MANUAL—REV 3/19
4 Operation
Pay attention to possible faults. Study the instructions carefully.
The items refer to the parts list and service kits section.
4.2 Troubleshooting
N
N
O
O
T
T
E
E
!
!
Study the maintenance instructions carefully before replacing worn parts. - See section 5.1!
P
P
r
r
o
o
b
b
l
l
e
e
m
m
C
C
a
a
u
u
s
s
e
e
/
/
r
r
e
e
s
s
u
u
l
l
t
t
R
R
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e
p
p
a
a
i
i
r
r
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
- 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 N
N
O
O
T
T
attempt to cut the actuator open, due to spring under load.
15
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ALFA LAVAL UNIQUE SSV Y-BODY VALVE INSTRUCTION MANUAL—REV 3/19
4 Operation
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.
4.3 Recommended cleaning
S
S
t
t
e
e
p
p
1
1
A
A
l
l
w
w
a
a
y
y
s
s
handle lye and acid with great care.
C
C
a
a
u
u
s
s
t
t
i
i
c
c
d
d
a
a
n
n
g
g
e
e
r
r
!
!
A
A
l
l
w
w
a
a
y
y
s
s
use
rubber gloves!
A
A
l
l
w
w
a
a
y
y
s
s
use
protective goggles!
S
S
t
t
e
e
p
p
2
2
N
N
e
e
v
v
e
e
r
r
touch the valve or the pipelines when sterilizing.
B
B
u
u
r
r
n
n
h
h
a
a
z
z
a
a
r
r
d
d
!
!
TD 461-766
S
S
t
t
e
e
p
p
3
3
Clean the plug and the seats correctly.
P
P
a
a
y
y
s
s
p
p
e
e
c
c
i
i
a
a
l
l
a
a
t
t
t
t
e
e
n
n
t
t
i
i
o
o
n
n
t
t
o
o
t
t
h
h
e
e
w
w
a
a
r
r
n
n
i
i
n
n
g
g
s
s
!
!
L
L
i
i
f
f
t
t
a
a
n
n
d
d
l
l
o
o
w
w
e
e
r
r
v
v
a
a
l
l
v
v
e
e
p
p
l
l
u
u
g
g
m
m
o
o
m
m
e
e
n
n
t
t
a
a
r
r
i
i
l
l
y
y
!
!
TD 461-769
S
S
t
t
e
e
p
p
4
4
E
E
x
x
a
a
m
m
p
p
l
l
e
e
s
s
o
o
f
f
c
c
l
l
e
e
a
a
n
n
i
i
n
n
g
g
a
a
g
g
e
e
n
n
t
t
s
s
:
:
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
16
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ALFA LAVAL UNIQUE SSV Y-BODY VALVE INSTRUCTION MANUAL—REV 3/19
4 Operation
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.
S
S
t
t
e
e
p
p
5
5
1. Avoid excessive concentration of the cleaning agent.
2. Adjust the cleaning flow to the process.
3. A
A
l
l
w
w
a
a
y
y
s
s
rinse well with clean water after the cleaning.
A
A
l
l
w
w
a
a
y
y
s
s
r
r
i
i
n
n
s
s
e
e
!
!
Clean water Cleaning agents
S
S
t
t
e
e
p
p
6
6
N
N
O
O
T
T
E
E
The cleaning agents must be stored/disposed of in accordance
with current regulations/directives.
17
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ALFA LAVAL UNIQUE SSV Y-BODY VALVE INSTRUCTION MANUAL—REV 3/19
5 Maintenance
Maintain the valve regularly.
Study the instructions carefully and pay special attention to the warnings!
Always keep spare rubber seals and lip seals in stock.
5.1 General maintenance
S
S
t
t
e
e
p
p
1
1
A
A
l
l
w
w
a
a
y
y
s
s
read the technical data thoroughly.
See chapter 6.
A
A
l
l
w
w
a
a
y
y
s
s
release compressed air after use.
N
N
O
O
T
T
E
E
All scrap must be stored/discharged in accordance
with current rules/directives.
S
S
t
t
e
e
p
p
2
2
N
N
e
e
v
v
e
e
r
r
service the valve when it is hot.
N
N
e
e
v
v
e
e
r
r
service the valve with valve and pipelines under pressure.
A
A
t
t
m
m
o
o
s
s
p
p
h
h
e
e
r
r
i
i
c
c
p
p
r
r
e
e
s
s
s
s
u
u
r
r
e
e
r
r
e
e
q
q
u
u
i
i
r
r
e
e
d
d
!
!
TD 461-770
B
B
u
u
r
r
n
n
h
h
a
a
z
z
a
a
r
r
d
d
!
!
S
S
t
t
e
e
p
p
3
3
N
N
e
e
v
v
e
e
r
r
stick your fingers through the valve ports if the actuator is
supplied with compressed air.
N
N
e
e
v
v
e
e
r
r
touch the moving parts if the actuator is supplied with
compressed air.
Air
M
M
o
o
v
v
i
i
n
n
g
g
p
p
a
a
r
r
t
t
s
s
!
!
C
C
u
u
t
t
t
t
i
i
n
n
g
g
h
h
a
a
z
z
a
a
r
r
d
d
!
!
TD 461-760
Air
18
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ALFA LAVAL UNIQUE SSV Y-BODY VALVE INSTRUCTION MANUAL—REV 3/19
5 Maintenance
Maintain the valve regularly.
Study the instructions carefully and pay special attention to the warnings!
Always keep spare rubber seals and lip seals in stock.
B
B
e
e
l
l
o
o
w
w
a
a
r
r
e
e
s
s
o
o
m
m
e
e
g
g
u
u
i
i
d
d
e
e
l
l
i
i
n
n
e
e
s
s
f
f
o
o
r
r
m
m
a
a
i
i
n
n
t
t
e
e
n
n
a
a
n
n
c
c
e
e
a
a
n
n
d
d
l
l
u
u
b
b
r
r
i
i
c
c
a
a
t
t
i
i
o
o
n
n
i
i
n
n
t
t
e
e
r
r
v
v
a
a
l
l
s
s
.
.
P
P
l
l
e
e
a
a
s
s
e
e
n
n
o
o
t
t
e
e
t
t
h
h
a
a
t
t
t
t
h
h
e
e
g
g
u
u
i
i
d
d
e
e
l
l
i
i
n
n
e
e
s
s
a
a
r
r
e
e
f
f
o
o
r
r
n
n
o
o
r
r
m
m
a
a
l
l
w
w
o
o
r
r
k
k
i
i
n
n
g
g
c
c
o
o
n
n
d
d
i
i
t
t
i
i
o
o
n
n
s
s
i
i
n
n
o
o
n
n
e
e
s
s
h
h
i
i
f
f
t
t
.
.
P
P
r
r
o
o
d
d
u
u
c
c
t
t
w
w
e
e
t
t
t
t
e
e
d
d
s
s
e
e
a
a
l
l
s
s
A
A
c
c
t
t
u
u
a
a
t
t
o
o
r
r
b
b
u
u
s
s
h
h
i
i
n
n
g
g
s
s
c
c
o
o
m
m
p
p
l
l
e
e
t
t
e
e
Preventive
maintenance
R
R
e
e
p
p
l
l
a
a
c
c
e
e
a
a
f
f
t
t
e
e
r
r
1
1
2
2
m
m
o
o
n
n
t
t
h
h
s
s
d
d
e
e
p
p
e
e
n
n
d
d
i
i
n
n
g
g
o
o
n
n
w
w
o
o
r
r
k
k
i
i
n
n
g
g
c
c
o
o
n
n
d
d
i
i
t
t
i
i
o
o
n
n
s
s
R
R
e
e
p
p
l
l
a
a
c
c
e
e
a
a
f
f
t
t
e
e
r
r
5
5
y
y
e
e
a
a
r
r
s
s
d
d
e
e
p
p
e
e
n
n
d
d
i
i
n
n
g
g
o
o
n
n
w
w
o
o
r
r
k
k
i
i
n
n
g
g
c
c
o
o
n
n
d
d
i
i
t
t
i
i
o
o
n
n
s
s
Maintenance after
leakage (leakage
normally starts slowly)
R
R
e
e
p
p
l
l
a
a
c
c
e
e
a
a
t
t
t
t
h
h
e
e
e
e
n
n
d
d
o
o
f
f
t
t
h
h
e
e
d
d
a
a
y
y
R
R
e
e
p
p
l
l
a
a
c
c
e
e
w
w
h
h
e
e
n
n
p
p
o
o
s
s
s
s
i
i
b
b
l
l
e
e
Planned
maintenance
- Regular inspection
for leakage and
smooth operation
- Keep a record of
the valve
- Use the statistics for
planning of inspections
R
R
e
e
p
p
l
l
a
a
c
c
e
e
a
a
f
f
t
t
e
e
r
r
l
l
e
e
a
a
k
k
a
a
g
g
e
e
- Regular inspection
for leakage and
smooth operation
- Keep a record of
the actuator
- Use the statistics for
planning of inspections
R
R
e
e
p
p
l
l
a
a
c
c
e
e
a
a
f
f
t
t
e
e
r
r
l
l
e
e
a
a
k
k
a
a
g
g
e
e
Lubrication
B
B
e
e
f
f
o
o
r
r
e
e
f
f
i
i
t
t
t
t
i
i
n
n
g
g
Klüber Paraliq GTE 703
or similar USDA H1
approved oil/grease
B
B
e
e
f
f
o
o
r
r
e
e
f
f
i
i
t
t
t
t
i
i
n
n
g
g
Molykote Longterm 2 plus
P
P
r
r
e
e
-
-
u
u
s
s
e
e
c
c
h
h
e
e
c
c
k
k
:
:
Air
Open/close!
Air
1. Supply compressed air to the actuator.
2. Open and close the valve several times to
ensure that it operates smoothly.
P
P
a
a
y
y
s
s
p
p
e
e
c
c
i
i
a
a
l
l
a
a
t
t
t
t
e
e
n
n
t
t
i
i
o
o
n
n
t
t
o
o
t
t
h
h
e
e
w
w
a
a
r
r
n
n
i
i
n
n
g
g
s
s
!
!
TD 461-765
19
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ALFA LAVAL UNIQUE SSV Y-BODY VALVE INSTRUCTION MANUAL—REV 3/19
5 Maintenance
Study the instructions carefully. The items refer to the parts list and service kits section. Handle scrap correctly.
NC = Normally closed.
NO = Normally open.
A/A = Air/air activated.
5.2 Dismantling of valve
S
S
t
t
e
e
p
p
1
1
1. Supply compressed air to the actuator (only NC).
2. Loosen and remove upper clamp.
3. Release compressed air (only NC).
4. Lift away the actuator.
5. Remove body gasket.
6. Unscrew and remove valve plug.
7. Loosen and remove upper clamp.
8. Remove O-ring, lip seal and bushing in bonnet.
(Use bushing tool and rubber mallet. See drawing).
P
P
a
a
y
y
s
s
p
p
e
e
c
c
i
i
a
a
l
l
a
a
t
t
t
t
e
e
n
n
t
t
i
i
o
o
n
n
t
t
o
o
t
t
h
h
e
e
w
w
a
a
r
r
n
n
i
i
n
n
g
g
s
s
!
!
TD 461-771
N
N
o
o
t
t
e
e
!
!
For plug seal replacement please see section 5.3. TD 461-772
N
N
o
o
t
t
e
e
!
!
Be careful not to damage the
bushing.
5.3 Plug Seal replacement
T
T
R
R
2
2
s
s
e
e
a
a
l
l
r
r
i
i
n
n
g
g
r
r
e
e
p
p
l
l
a
a
c
c
e
e
m
m
e
e
n
n
t
t
1. Place the plug element on a firm support.
2. Using a utility knife, partially AND CAREFULLY cut through
the upper ring portion of the TR2 plug avoiding contact
with stainless steel stem.
3. Force apart both cut ends of the plug for removal from
stem.
4. TR2 plugs are installed by applying uniform pressure on
all sides.
(Pressure can be applied by using the seat assembly tool).
5. Using a piece of metal an a rubber mallet, place a precise
tabtomaketheTR2plugsnapontothestem. Reverse
the tool and tab again to secure proper fit.
6. Examine seat assembly to be sure the TR2 plug is properly
mounted, holding the seat assembly in one hand - rotate
the TR2 plug.
(For proper CIP cleaning the TR2 plug should turn freely
on the stem.)
For more explicit instructions, please refer to the maintenance
video.
20
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