Definox VEOX SP 3 BODY Operation and maintenance manual

MAINTENANCE NOTICE
NM-277 index 02 Page 1/37 June 2020
MIXPROOF VALVE
VEOX SP 3 BODY
www.definox.com

MAINTENANCE NOTICE
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TABLE OF CONTENTS
1 MANAGEMENT OF EVOLUTIONS 3
2 SAFETY 4
2.1 IMPORTANT INFORMATION 4
2.2 GENERAL INFORMATIONS 4
3 INTRODUCTION 5
3.1 DISASSEMPLING THE VALVE: (Remove the shut-off sub-assembly from the body). 5
3.2 DISASSEMPLING THE AIR CYLINDER: (Changing the internal seals). 5
4 VALVE DISASSEMBLING 6
4.1 DISASSEMBLING THE SIGNALING BLOCK 6
4.2 BODY AND SHUT-OFF 7
4.3 DISASSEMBLY OF VEOX BREAKAWAY CYLINDER (For changing seals and segments if necessary) 8
4.4 DISASSEMBLY OF THE LOWER VALVES OF THE VEOX SP 3 BODY 9
4.5 DISASSEMBLY OF THE PPJ AND THE VEOX SP UPPER VALVES 11
4.6 DISASSEMBLING THE PRINCIPAL AIR CYLINDER 12
4.7 DISASSEMBLING THE LANTERN SUB-ASSEMBLY 13
4.8 DISASSEMBLING THE AXLE / PISTON SUB-ASSEMBLY 14
5 REASSEMBLING OF VEOX SP VALVE 15
5.1 CHANGING DEFECTIVE COMPONENTS OR SEALS ON THE VALVES 15
5.1.1 CHANGING THE SEALS ON VEOX SP 3 BODY VALVES 15
5.1.2 CHANGING THE PFA SEAL ON THE PFA UPPER VALVE 16
5.1.3 REASSEMBLING VEOX SP AXLE/PISTON 18
5.1.4 REASSEMBLING VEOX SP LANTERN ASSEMBLY 19
5.1.5 REASSEMBLING VEOX SP ACTUATOR ASSEMBLY 20
5.1.6 REASSEMBLY OF THE VALVE ASSEMBLY ON THE BODY OF VEOX SP 3 BODY 21
6 VEOX SP SPARE PARTS 22
6.1 VEOX SP BREAKAWAY SUB-ASSEMBLY SPARE PARTS (Seal kit, see § 6.9.1) 22
6.2 VEOX SP ACTUATOR SPARE PARTS (Seal kit, see § 6.9.2) 23
6.3 VEOX SP 3 BODY VALVE SUB-ASSEMBLY SPARE PARTS: ELASTOMER / ELASTOMER / ELASTOMER (Seal kit, see § 6.9.3, § 6.9.4) 24
6.4 VEOX SP 3 BODY VALVE SUB-ASSEMBLY SPARE PARTS: PFA / ELASTOMER / ELASTOMER (Seal kit, see § 6.9.5, § 6.9.6, § 6.9.7, §
6.9.8) 25
6.5 VEOX SP 3 BODY SUB-ASSEMBLY SPARE PARTS (Seals, see § 6.8) 26
6.6 VEOX SP BREAKAWAY VALVE DETECTION OPTION SPARE PARTS 27
6.7 ADJUSTING THE DETECTOR IN THE LANTERN 28
6.8 VEOX SP 3 BODY SPARE PARTS TABLE 29
6.9 REFERENCES OF SEAL KITS FOR VEOX SP 31
6.9.1 Breakaway sub-assembly for NBR seal kits (Rep: 10) VEOX SP 31
6.9.2 Seal kits for main actuator seals (Rep: 40) VEOX SP 31
6.9.3 Seal kits for EPDM body and valve ELASTOMER / ELASTOMER / ELASTOMER VEOX SP 3 BODY 32
6.9.4 Seal kits for FKM FP75 body and valve ELASTOMER / ELASTOMER / ELASTOMER VEOX SP 3 BODY 32
6.9.5 Seal kits for EPDM body and valve PFA / ELASTOMER / ELASTOMER VEOX SP 3 BODY 33
6.9.6 Seal kits for FKM FP755 body and valve PFA / ELASTOMER / ELASTOMER VEOX SP 3 BODY 33
6.9.7 Seal kits for EPDM body and valve PFA / ELASTOMER / ELASTOMER / ELASTOMER VEOX SP 3 BODY (without PFA seal) 34
6.9.8 Seal kits for FKM FP75 body and valve PFA / ELASTOMER / ELASTOMER / ELASTOMER VEOX SP 3 BODY (without PFA seal) 34
6.9.9 Greases reference 35
6.9.10 Reference for valve tool kits VEOX SP 36

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1 MANAGEMENT OF EVOLUTIONS
CHANGES INDEX DATE PAGES INITIALS
New edition 1 April 2020 / G. BEGAUD
Add of actuator shim for DN104 2 June 2020 23/31 G. BEGAUD

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2 SAFETY
2.1 IMPORTANT INFORMATION
Always read the maintenance notice before manipulating the valve
Failure to observe these instructions can result in serious bodily injury or loss of life.
This can result in less serious injuries or damage to the equipment.
Electricity can result in serious bodily injury or loss of life
This can result in less serious injuries or damage to the equipment.
2.2 GENERAL INFORMATIONS
The following advice is given to ensure optimum use of the equipment.
•The tasks must be performed in the order specified.
•A range of greases for cylinder seals and valve seals has been defined to be
in phase with their nature and the regulations according to the uses (see § 6.9.9).
NOTE
DANGER
CAUTION
DANGER
CAUTION

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VEOX SP 3 Body Valves MAINTENANCE NOTICE
3 INTRODUCTION
IMPORTANT Before carrying out any maintenance work, check with the supervisor
that the installation is stopped and drained (pipes empty and de-pressurised, pumps
stopped, tanks shut off or empty, etc.).
The disassembly of a mixproof valve is divided into 2 distinct steps.
3.1 DISASSEMPLING THE VALVE: (Remove the shut-off sub-assembly from the body).
This operation enables access to the isolation seals (Changing the seals, see § 6.9.9 for
lubrication) and the removal of the air cylinder.
This is a straightforward procedure and can be performed on-site as it does not present any
particular problems.
This is the case in most maintenance operations on this type of valve.
3.2 DISASSEMPLING THE AIR CYLINDER: (Changing the internal seals).
IMPORTANT This operation must be carried out with suitable tools and with the necessary
precautions. (WARNING: pre-tensioned spring)
N.B.: After any maintenance work on DEFINOX products, it is imperative to check the
proper functioning of the equipment concerned: Sealing, pressure, etc.
ATTENTION: NEVER BLOCK or REDUCE the flow of the LEAKAGE CHAMBER in
the lower part of the valve.
IMPORTANT Ensure that the greases used are compatible with the elastomer seals
(See § 6.9.9).
CAUTION!
NOTE!
CAUTION!
VEOX SP 3 BODY
CAUTION!

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4 VALVE DISASSEMBLING
If the valve is fitted with a signalling unit, it may be necessary for disassembly, to first
separate the signalling assembly from the actuator.
4.1 DISASSEMBLING THE SIGNALING BLOCK
Disassembling without disconnection
IMPORTANT Before starting any work on the box, it is important to ensure that
the air supply is closed and that the circuit is purged.
Disassembling with disconnection
IMPORTANT Before starting any work on the box, it is important to ensure that
the mains supply is switched off, that the air supply is closed and that the circuit is
purged.
To assembly or disassembly of the control top, refer to maintenance notice:
CAUTION
CAUTION
ACS LED
Maintenance notice NM-
259
Sorio® Box
Maintenance notice NM-
275

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4.2 BODY AND SHUT-OFF
•Supply air to the main air cylinder to relieve the pressure on the upper clamp collar of the
actuator spring.
•If a signalling unit is installed on the valve, use the air circuit of the unit to move the valve
in the open position.
•Unscrew the detection cam [74].
•Disassemble the upper clamp collar [53].
•Cut the air to the air cylinder (the valve returns to the closed position).
•Remove the isolation (air cylinder) assembly [A] from the bodies of VEOX SP 3 BODY [50]
and [52].
•Remove the lower clamp collars [53a] to separate the bodies [50] and [52].
•Remove and change the O-ring sea [51] (If necessary).
•Remove the lower clamp collar [53b] to separate the lower body [52] and the protector
[54].
53
53a
74
53b
A
50
54
52
51

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4.3 DISASSEMBLY OF VEOX BREAKAWAY CYLINDER (For changing seals and segments if
necessary)
•Disassemble the screws [6] fastening the breakaway actuator body [1].
•Unscrew the breakaway piston lower valve pin [3].
•Remove the breakaway piston rod [4].
•Remove the breakaway piston [2] from the cover.
•Remove the seals [5], [7], [9] and the segment [8].
•Consult the VEOX breakaway actuator seal kit (See § 6.9.11).
5
6
8
4
1
9
7
3
2

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4.4 DISASSEMBLY OF THE LOWER VALVES OF THE VEOX SP 3 BODY
•Screw the protection screw [86] in the cylinder rod [11] to protect the tapped hole.
•Using the plug valve wrench [82] on the lower valve side [71] and the holding wrench [84]
on the flats on the cylinder rod side [11], unscrew the lower valve assembly [B] from the
pneumatic cylinder [40]. (See drawing below)
LOWER VALVE TOOL KIT
Diameter DN 25 DN 38 to 51 DN 63 to 80 DN 104 DN 125/150
Plug valve wrench
[82]
N° 7141988 N° 7141979 N° 7142224
Holding wrench [84] N° 7142226
Protection screw [86] N° 7190769 N° 7190770
ELASTOMER / ELASTOMER / ELASTOMER
84
40
11
86
82
B
71
PFA / ELASTOMER / ELASTOMER
84
40
11
86
82
B
71

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•Using the plug valve wrench [82] on the cylinder rod lower side and the plates of the lower
valve axis [68]. (In a vice with protective jaws or with an open-ended wrench).
•Unscrew the intermediate valve [70] from the lower valve axle [68]. (See drawing below).
•Remove the O-rings [72] and [69]. (To change the seals if necessary)
When disassembling the O-ring [72], remove the insert [73] from it and keep it to put it in
the new seal.
•Using the plug valve wrench [82] on the lower valve side and the plates on the
intermediate valve [70]. (In a vice with protective jaws or with an open-ended wrench).
•Unscrew the intermediate valve [70] from the lower valve [71]. (See drawing below).
•Remove the O-ring [72]. (To change the seals if necessary)
When disassembling the O-ring [72], remove the insert [73] from it and keep it to put it in
the new seal.
CAUTION!
82
Lower valve
axis plates
70
72
5
69
73
a
68
CAUTION!
82
Intermediate
valve plates
71
72 73
a
70

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4.5 DISASSEMBLY OF THE PPJ AND THE VEOX SP UPPER VALVES
•Unscrew the 2 fixing screws [42] to be able to remove the lantern protection plate [41].
•Unscrew the indexing screw [60].
•Unscrew the two fastening screws [58].
•Remove the clamp collar [57] from the lantern [19].
•Then remove the upper plug [61] or [62].
•Remove the seal holder plate [45] from the lantern.
•Disassemble and replace the defective seals: segment [47], upper valve seal [48], body
seal [49].
19
47
45
48
49
61
58
57
41
42
60
62

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4.6 DISASSEMBLING THE PRINCIPAL AIR CYLINDER
•Disconnect the air connections [23] and [24] for the upper breakaway valve supply.
•Position the cylinder sub-assembly [40] on the press. (See drawing below)
•Make sure the press stroke is right for sides [A] and [B].
•Use a tube [C] to avoid damaging the upper part of the cylinder lantern [40].
•Press the springs to release the ring [25].
•Take the ring [25] out of its housing using a screwdriver then release the pressure.
•Remove the lantern/rod/piston sub-assembly [16] [17] [18] [19], the stop [20], the main
axis/piston [11] [13] [15], the springs [30] and [33] of the cylinder barrel [12].
Diameter
DN 25 to 51
DN 63 to 80
DN 104
DN 125/150
Max.
compression
(mm) A
182 214 263 285
Min. recoil (mm)
B 361 427 442 473
Ø Tube (mm) C
Ø external: 82 maxi
Ø internal: 66 mini
Ø external: 107 maxi
Ø internal: 80 mini
Ø external: 120 maxi
Ø internal: 80 mini
Ø external: 160 maxi
Ø internal: 120 mini
16
C
2
23
24
25
40
19
25
18
17
20
30
11
33
12
15
13

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4.7 DISASSEMBLING THE LANTERN SUB-ASSEMBLY
•Hold the clamp rod [18] with the clamp rod guide [85] held in a vice.
•Loosen the breakaway piston nut [16] using the plug valve wrench [83].
•Release the nut [16] the breakaway piston [17] and the clamp rod [18] from the lantern
assembly [19].
Diameter DN 25 to 51 DN 63 to 104 DN 125/150
Nut wrench [83]
N° 7141988 N° 7141989
Rod clamp guide [85]
N° 7193222 N° 7142262
83
85
16
17
19
18

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4.8 DISASSEMBLING THE AXLE / PISTON SUB-ASSEMBLY
•Screw the protection screw [86] in the cylinder rod [11] to protect the tapped hole.
•Loosen the pressure screw [14] of the nut [13].
•Unscrew the nut [13] of the main piston [15] using the plug valve wrench [83]
and the holding wrench [84].
•Release the nut [13] from the main piston [15] and take out the actuator shaft [11].
PISTON AXLE DISASSEMBLY TOOL KIT
Diameter DN 25 to 51 DN 63 to 104 DN 125/150
Nut wrench [83]
N° 7141988
Holding wrench [84]
N° 7142226
Protection screw [86]
N° 7190769 N° 7190770
84
83
14
13
15
11
86

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5 REASSEMBLING OF VEOX SP VALVE
5.1 CHANGING DEFECTIVE COMPONENTS OR SEALS ON THE VALVES
5.1.1 CHANGING THE SEALS ON VEOX SP 3 BODY VALVES
IMPORTANT It is required to disassemble the lower valve to change the seals located on
the upper valve.
•Before changing the defective seals (see reference for seals or pockets at the end of
the notice), grease these with a suitable grease.
•For process seals [64] in contact with the silicone grease mounting product. (For Type
Paraliq 703 GTE, see § 6.9.9)
•For the external seals [64] and [65] of the dry mounting [61] upper valve.
•It is imperative to avoid twisting seals [65] and [67] when installing them.
•Make sure to distribute the volume of the seals well in their grooves so as to have a
uniform contact surface over the entire periphery.
•Remove the O-ring [64] as well as the ring [63]. (If changing is necessary, consult the
parts reference at the end of the notice).
CAUTION!
ELASTOMER UPPER VALVE
61
63
65
64
67

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5.1.2 CHANGING THE PFA SEAL ON THE PFA UPPER VALVE
IMPORTANT It is required to disassemble the lower valve to change the PFA seal located
on the upper valve.
•Cut the damaged PFA joint using a cutter, taking care not to mark
the support surface of the valve. (Protect the stainless-steel surface with the end of a ruler
or a plastic wedge).
•Put the new seal in an oven for 30 minutes at 165°C. (+/-3%)
IMPORTANT Do not exceed 200°C maximum. If the temperature is too low, the seal may
deform or tear during installation.
•Quickly insert the PFA seal [66] on one side of the groove then push it gradually into its
housing.
IMPORTANT Position the chamfer side of the PFA seal correctly on the valves. (See
drawing below)
•Remove the O-rings [64] and [67] as well as the ring [63]. (If changing is necessary,
consult the parts reference at the end of the notice).
CAUTION!
CAUTION!
CAUTION!
PFA UPPER V
ALVE
66
67
64
63
62

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•Before changing the defective seals between the lower valve and the intermediate valve
(See reference for seals or pockets at the end of the notice).
•Mount the seal [72] on the dry insert [73] and mount the slightly greased assembly
between the marks [70] and [71], pay attention to its concentricity on the valve.
•Screw the assembly using the plug valve wrench [82] on the lower valve side [71] and the
plates on the intermediate valve side [70]. (In a vice with protective jaws or with an open-
ended wrench )
•Tighten the lower valve [71] on the intermediate valve [68] until it it comes in contact metal
to metal.
•Before changing the defective seals between the intermediate valve and the lower valve
axle. (See reference for seals or pockets at the end of the notice)
•Place the seal [72] on the dry insert [73] and assemble the slightly greased assembly
between the marks [70] and [68], as well as the O-ring [69], pay attention to its
concentricity on the valve.
•Screw on the assembly using the plug valve wrench [82] on the lower valve side [71] and
the plates on the lower valve pin side [68]. (In a vice with protective jaws or with an open-
ended wrench )
•Tighten the valve plate [70] on the lower valve [68] until it comes in contact metal to metal.
Diameter
DN 25 DN 38 to 51 DN 63 to 104 DN 125/150
Plug valve wrench [82] N° 7141988 N° 7141979 N° 7142224
71
68
69
72
73
82
82
71
70
72
73
70

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5.1.3 REASSEMBLING VEOX SP AXLE/PISTON
•Remove the O-rings [29] and [31] (If changing is necessary, consult the parts
reference at the end of the notice),grease these with grease. (Type 4025 H1
QUINPLEX from Lubrication Engineers, see § 6.9.9)
•Remove segments [28] and [32] (If changing is necessary, consult the parts reference
at the end of the notice). Rep: [28] mounted only on DN63 to 125.
•After changing the seals and segments, reassemble the axle [11] in the main piston [15].
•Screw the protection screw [86] in the cylinder rod [11] to protect the tapped hole.
•Screw the nut [13] using the nut wrench [83] and the holding wrench [84].
•Then lock the pressure screw [14].
AXLE-PISTON DISASSEMBLING TOOL KIT
Diameter DN 25 to 51 DN 63 to 104 DN 125/150
Nut wrench [83]
N° 7141988
Holding wrench [84]
N° 7142226
Protection screw [86]
N° 7190769 N° 7190770
84
83
86
29
28
15
13
14
11
31
32

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5.1.4 REASSEMBLING VEOX SP LANTERN ASSEMBLY
•Remove the O-rings [21] [26] [27] [37] (If changing is necessary, consult the parts
reference at the end of the notice),grease these with grease. (Type 4025 H1
QUINPLEX from Lubrication Engineers, see § 6.9.9)
•Remove segments [22] and [36] (If changing is necessary, consult the parts reference
at the end of the notice).
•After changing the seals and segments, position the valve protector [80] on the thread of
the clamp rod [18].
•Pass the clamp rod [18] through the lantern [19] and the breakaway piston [17].
•Remove the valve protector [80] to screw the nut [16] onto the thread of the clamp rod [18].
•Use the rod clamp guide [85] and the plug valve wrench [83] to tighten the assembly.
(See drawing below)
Diameter
DN 25 to 51 DN 63 to 104 DN 125/150
Valve protector [80] N° 7141886 N° 7141887 N° 7141888
Plug valve wrench [83] N° 7141988 N° 7141989
Rod clamp guide [85] N° 7193222
N° 7142262
83
85
16
22
27
26
19
80
36
37
18
21
17
22
21

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5.1.5 REASSEMBLING VEOX SP ACTUATOR ASSEMBLY
•Screw the guides [81] and [79] to the axel [11]. (See drawing below)
•Position the spring [33] in the barrel [12] reassemble the axle/piston assembly on the
spring [33] position the spring [30] in the assembly and thread the lantern assembly on the
guide [81]. (See drawing below )
•Mount the assembly on a press to correctly position the rod [25] (For the strokes of the
press, see page 12 for disassembly of same).
•Reset the connections [23] and [24] on the lantern [19]. (Pay attention to the alignment
of the connections, see drawing below).
ACTUATOR MOUNTING TOOL KIT
Diameter DN 25 to 51 DN 63 to 104 DN 125/150
Rod clamp guide [81] N° 7190943 N° 7190944 N° 7141891
Actuator body guide [79] N° 7142227 N° 7142228 N° 7141885
24
25
19
81
11
30
33
79
12
When reassembling, align the holes of the air
connections
23