SPX FLOW APV DELTA DA3+ User manual

APV DELTA DA3+ DN40-100, 1.5”-4”
DOUBLE SEAT VALVE
SAFETY AGAINST EXPLOSION - FOR SPECIFIC ATEX-APPLICATIONS
FORM NO.: H331524 REVISION: UK-0-ATEX READ AND UNDERSTAND THIS MANUAL PRIOR TO OPERATING OR SERVICING THIS PRODUCT.
INSTRUCTION MANUAL
Scan for DA3+ Valve
Maintenance Video

EU Declaration of Conformity
for Valves and Valve Manifolds
SPX Flow Technology Germany GmbH
Gottlieb-Daimler-Str. 13, D-59439 Holzwickede
herewith declares that the
APV double seat valves of the series DA3+ ATEX design
in the nominal diameters DN 40 – 100, 1,5“ – 4“
meet the requirements of:
Machinery Directive 2006/42/EC
(superseding 89/392/EEC and 98/37/EC)
Equipment and Product Safety Act GPSG - 9.GPSGV
and
Directive on the Protection against Explosion 2014/34/EU ATEX (superseding 94/9/EC)
for Equipment Category -/2G IIB TX
For official inspections, SPX FLOW presents
a technical documentation according to Appendix VII of the Machinery Directive,
this documentation consisting of documents of the development and construction,
description of measures taken to meet the conformity and to correspond with
the basic requirements on safety and health, incl. an analysis of the risks,
an analysis of ignition hazards as well as an instruction manual manual with safety instructions.
The conformity of the valves is guaranteed.
An ATEX documentation is lodged at the notified body DEKRA EXAM GmbH
in Bochum, Germany (No. 0158).
Authorised person for the documentation:
Frank Baumbach
SPX Flow Technology Germany GmbH
Gottlieb-Daimler-Str. 13, D-59439 Holzwickede, Germany
November 2017
Frank Baumbach
Regional Engineering Manager, F&B Components

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Double seat valve
DELTA DA3+ - ATEX
Instruction manual: UK - rev. 0
APV
Content Page
1 General Terms 2
1.1. Symbols
1.2. ResponsibilityforATEXcertication-Scopeofsupply
2. Safety Instructions 3 - 4
3. Identicationofvalves,Temperatureclasses,Responsibilites  5-6
3.1. IdenticationofvalvesforapplicationinATEXenvironment
3.2. Temperature classes and permissible temperatures
3.3. Responsibilities
4. IntendedUse  6
5. ModeofOperation  7-8
5.1. General terms
5.2. Valve in “closed” position
5.3. Valve in "open" position
6. AuxiliaryEquipment       9
6.1. Valve position indication (proximity switches)
7. Cleaning        10-11
7.1. Flow areas
7.2. Seal surfaces
7.3. Leakage chamber
7.4. Cleaning recommendation
7.5. Flushing quantity
7.6. Cleaning of upper area
7.7. Cleaning of lower area
8. Installation  12
8.1. General terms
8.2. Welding instructions
9. Dimensions/Weights  13
10. TechnicalData  14-17
10.1. General data
10.2. Compressed air quality
10.3. Kvs values in m³/h
10.4. Valve stroke open/closed
10.5. Air consumption / Closing times
11. Materials        17
12. Maintenance        18-19
13. ServiceInstructions  20-24
13.1. Dismantling from piping system
13.2. Disassembly of product-wetted seals
13.3. Maitenance of seat lift actuator / main cylinder
13.3.1. Dismantling of seals and disassembly of seat lift actuator and main cylinder
13.3.2. Installation of seals and assembly of seat lift actuator and main cylinder
13.4. Installation of seals and assembly of valve
13.5. Installation of valve insert
14. DisassemblyandAssemblyTool 25
(lower shaft seal)
15. AssemblyToolforMiddleSeal 26
16. DetectionofSealDamage 28
17. SparePartsListsandLubricationChart 29
DA3+-DN40-100;1,5“-4”-ExII-/2GIIBTX  RNATEX053.73

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Instruction manual: UK - rev. 0
APV
1. General Terms
This instruction manual applies for DELTA DA3 plus double seat
valves in the nominal dimensions DN 40-100, 1,5"-4" for use in
specific ATEX applications (according to Directive 2014/34/EU).
The valve must only be assembbled, disassembled and
reassembled by persons who have been trained in APV valves or by
SPX FLOW service team members. If necessary, contact
your local SPX FLOW representative.
This instruction manual must be read and observed by the
responsible operating and maintenance personnel.
We point out that we will not accept any liability for damage or
malfunctions resulting from the non-compliance with this instruction
manual.
Descriptions and data given herein are subject to technical changes.
1.1.Symbols
This symbol draws your attention to important directions which have
to be observed with regard to the operation in explosive areas.
This technical safety symbol draws your attention to important
directions for operating safety. You will find it wherever the activities
described are bearing health hazards or risks for persons or
material assets.
1.2.ResponsibilityforATEXcertification-scopeofsupply
SPX FLOW will be held responsible only for the valves supplied and
selected according to the operating conditions indicated by the
customer or end user and as stated in the order confirmation. If in
doubt, contact your local supplier.
All other assembled equipment and devices must have a separate
certification of at least the same or higher grade of protection
as the valve, provided by the supplier(s) of that equipment and
devices. The complete unit must be certified separately by the final
assembling manufacturer and must have a separate name plate
supplied by the unit manufacturer.

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2. Safety Instructions
Danger!
Ifthevalveisusedforammableliquids,itmustbeobserved
that every operation of the valve is combined with an operating
leakage of about 4.0 ml.
The operator shall consider these conditions in his considerations
andclassicationsofexplosiveenvironments.
- Regular maintenance including the replacement of all seals and
bearing bushes must be scheduled in order to prevent leakages and
discharge of liquids.
- Connections which are not used must be sealed by a plug.
- Safe discharge of the cleaning liquids must be ensured!
- Before any maintenance work the line system must be
depressurized and drained if possible.
- Separate all electric and pneumatic connections.
- Observe the following Service Instructions to ensure safe
maintenance of the valve.
Danger!
Welded actuators are preloaded by spring force.
Openingoftheactuatorsisstrictlyforbidden.
Dangertolife!
Actuators which are no longer used or defective must be diposed in
professional manner.
Defective actuators must be returned to your SPX FLOW
representative for their professional disposal and free of charge for
you.
Please address to your local SPX FLOW representative.

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APV
2. Safety Instructions
Installation, connection, start-up, maintenance and repair work must
onlybecarriedoutbyqualiedpersonnel.
The following aspects must be observed:
- The instructions of this manual together with all relevant instructions
for the components, equipment and installations installed.
- Warningsandinstallationsxedtothecomponents.
- Thespecicregulationsforandrequirementstothesysteminwhich
the valve is installed.
- The currently valid regional, national and international regulations.
- Any special requirement and national legislation relative to the use
ofammableliquidsortools,e.g.theriskofignitionincaseofspark
formation, must be observed.
It must be ensured that the group, the category and the temperature
class of the valve complies with the minimum requirements of the
operating environment!
Inammablegasmixturesordustconcentrationsinconnectionwith
hot, operational and movable parts of the valve can lead to serious
or fatal injury!
Before start of assembly the operator must make sure that an
explosive atmosphere does not exist (detection/measurement of
potential concentration of hazardous substances).
Conductive connection to the pipeline must be provided.
The integration into the internal potential equalisation must be
guaranteed!
The APV CU2, CU3 and CU4 Control Units are not suited for use
in ATEX environments!

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APV
3. Identicationofvalves, 
Temperatureclasses,Responsibilities
3.1. IdenticationofvalvesforuseinATEXenvironment
 ATEX-identication:
- Equipment group II
- Equipment category outside 2G
inside no equipment
- Explosion subcategroy IIB
Ambient temperature for the operation
0 °C < Tamb < 40 °C
- Temperature classes TX (according to table 3.2)
3.2. Temperatureclassesandpermissibletemperatures
Media temperature ≤75°C ≤95°C ≤130°C
up to
140 °C
= Tmax.
Safety addition + 5 °C + 5 °C + 5 °C + 5 °C
Temperature class T6 T5 T4 T3
Under standard operating conditions the highest surface
temperature will be comparably as high as the temperature of the
medium plus a safety addition for local temperature increases. The
valve must be completely free to the environment in order to provide
 forsufcientheatrelease.
All data (temperature classes) refer to an ambient temperature
of 0°C and 40°C. If the ambient temperature is above 40°C, the
temperature difference must be adjusted. In all cases, contact your
responsible SPX FLOW representative!

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APV
3. Identicationofvalves, 
Temperatureclasses,Responsibilities
3.3. Responsibilites
It is within the operator`s responsibility to ensure that the specied
product temperatures are not exceeded and that regular inspections
and maintenance are carried out to provide for proper function of
the valve.
4. IntendedUse
The intended use as field of application of the double seat valves
is the shut-off of line sections, especially in beverage and food
installations.
Its use is permissible only within the admissible pressure and
temperature margins and under consideration of chemical and
corrosive influences.
Any use exceeding the margins and specifications set forth,
is considered to be not intended.
Any damage resulting therefrom is not within the responsibility
of the manufacturer.
The user will bear the full risk.
Attention!
Improper use of the valve leads to:
- damage
- leakage
- destruction
- Failures in the production process are possible.
Warning!
The valve is suitable for use in hazardous areas
as identified on the valve according to Directive 2014/34/EU.
Earthing of the valves must be ensured.
Arbitrary, constructive changes at the valve will influence safety
as well as the intended functionality of the valve and are not
permissible.
AuthorizationsandExternalEvaluations:
To view the certifications for this and other innovative SPX FLOW
products, visit
https://www.spxflow.com/en/apv/about-us/certifications/

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Double seat valve
DELTA DA3+ - ATEX
Instruction manual: UK - rev. 0
APV
5. ModeofOperation
5.1. GeneralTerms
Due to its construction and mode of operation as well as to the use
of high quality stainless steel and adequate seal materials, the
double seat mixproof valve DELTA DA3 is suited for applications in
the food and beverage industries as well as in the pharmaceutical
and chemical industries.
The valves are designed for universal applications and stand out
for their increased mechanical reliability and absolute ease of
service.
The valve opens from the top to the bottom in low leakage
operation (unpressurized drain of fluid residues via the annular
cleaning gaps in the seat area).
Separation of two line passages by two balanced and
independently operating valve slides with intervening
leakage chamber.
Arising leakages at the seat seals are discharged at (E) in
depressurized state.
Proximity switches can be installed as valve position indicators.
D1 = valve position "closed"
D2 = valve position "open" (DN 40, 1,5” only)
D3= valve position "open" (DN 50 to 150, 2” - 4”)
Maintainable actuator (see page 22)
An optical indication of the valve position is installed at the actuator.
Operation by pneumatic actuator with air connection at (B).
Reset by spring force into the safety limit position “closed”.
B= valve open
Cleaning of the leakage chamber is undertaken via the cleaning
connection (C).
Cleaning of the seat and shaft seal areas is realized by operation
of the air connections:
A1 = lifting of lower shaft
A2 = lifting of upper shaft
Reset by spring force.
seat lift actuator
main cylinder
drain pip
housing
CIP
cleaning connection
spring cylinder
DA3 double seat valve
D1
A1
B
C
E
A2
D2
D3

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Double seat valve
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Instruction manual: UK - rev. 0
APV
5. ModeofOperation
5.2. Valvein“closed”position
The lower and upper valve shafts are closed by spring force and
safelyseparatethedifferentuidsA and B. The leakage chamber L
which is situated between the two valve shafts, provides for a free
and absolutely depressurized discharge to the bottom. The valve
shafts are balanced and, thus, safe against pressure hammers.
5.3. Valvein“open”postion
By control of the actuator, the upper valve shaft is pressed against
the seal of the lower valve shaft. Thus, the leakage chamber Lis
closed against the product chamber.
Then the two valve shafts move downwards into the open position.
A connection between the two pipelines Aand Bis produced.
fig.5.3.
fig.5.2.
A
B
L
A
B
L

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APV
6. AuxiliaryEquipment
6.1. Valvepositionindication
Proximity switches to signal the limit position of the valve shafts
can be installed at the actuator if requested (fig.6.1.)
D1 = valve position "closed"
D2 = valve position "open" (DN 40 - 50, 1,5” - 2” only)
D3 = valve position "open" (DN 65 - 100, 2,5” - 4” only)
The use of valve position indicators which are approved for
the application in explosive atmospheres is compulsory!
We recommend to use our APV standard types for ATEX:
operating distance: 5 mm / diameter: 11 mm
Cable length: 2 m
Approvalaccordingto:KEMA02ATEX1090X
ref.-No.00086-01-127/93;H130435
If the customer decides to use different valve position indicators,
we cannot take over any liability for a faultless function.
The use and operation of valve position indicators shall
be evaluated by the operator of the installation!
7. Cleaning
CleaningtheDELTADA3+valve,onehastodistinguish
betweenthreeareas:
7.1. Theflowareas
The upper and lower passages are cleaned by the passing
cleaning liquid during the cleaning of the connected pipelines.
7.2. Thesealsurfaces
The seal surfaces of the upperarea(upper shaft and seat seal)
and thelowerarea (lower shaft and seat seal) are flushedand
cleaned by cleaning liquid through lifting of the individual valve
shafts during the cleaning of the respective passage.
D2
D1
D3
fig.6.1.

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APV
7. Cleaning
7.3. Theleakagechamber(fig.7.3.)
The cleaning of the leakage chamber is undertaken by CIP
spraying. CIP cleaning connection (C).
The valve shafts being lifted, the CIP liquid also cleans the
leakage chamber.
The spraying does not produce pressure build-up in the leakage
chamber and can be carried out in closed and in open valve
position. The conduct of the cleaning liquid provides for a
biologically perfect cleaning of the whole leakage chamber.
Under standard conditions 15 valves DN 40 - 100 / 1,5” - 4”
can be cleaned via one spray distribution line DN 25.
7.4. Cleaningrecommendationonintervalsandsprayingliquids
 undernormaloperatingconditionsandwithcommon
CIP liquids
cleaningstep seat lifting CIP cycle
pre-flushing 3 x 10 sec.
caustic flushing 80° C 3 x 5 sec. 3 x 10 sec.
intermediate flushing 2 x 5 sec. 2 x 10 sec.
acid flushing 3 x 5 sec. 3 x 10 sec.
subsequent flushing 2 x 5 sec. 2 x 10 sec.
The lifting cycles refer to a cleaning pressure of p = 2 - 5 bar.
Depending on the degree and constituents of soiling, cleaning
liquids, cycles and processes must be adjusted for the individual
application.
The comptability of the individual cleaning processes and liquids
withtherespectivesealmaterialsmustbeveried.
7.4.1 Flushingquantities:
per CIP cycle DN 40 - 100, 1,5” - 4” about1,2ltr/10s
7.4.2. Cleaningpressureat
 CIPcleaningconnection(C):   min.2bar.
       max.5bar.
C
fig.7.3.
CIP
cleaning connection
free discharge
CIP-media

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APV
7. Cleaning
7.5. Flushingquantityinmlperliftingcycle/5sec.
7.6. Cleaningofupperarea(fig.7.6.)
The upper valve shaft is lifted via the connection
A2 = .
Byliftingoftheuppervalveshaft,thecleaningliquidushesover
the upper seat seal and the upper valve seat into the leakage
chamber and cleans this area. The cleaning liquid is drained off to
the bottom in depressurized state.
Simultaneously, the upper shaft seal and the outer surface of the
upper valve shaft are cleaned. Then the cleaning liquid is drained off
at the inner tube of the lower valve shaft to the bottom.
The lifting stroke is limited by a metallic stop.
7.7. Cleaningoflowerarea(fig.7.7.)
The lower valve shaft is lifted via the connection
A1 = .
lower seat seal into the leakage chamber and cleans this area. The
cleaning liquid is drained off to the bottom in depressurized state.
Simultaneously, the lower shaft seal and the outer surfaces of
the lower valve shaft are cleaned. The cleaning liquid flushes the
spray connection and is then drained off to the bottom in
depressurized state.
The lifting stroke is limited by a metallic stop.
DN80,100
Inch4"
pressureinbar
DN40,50,65,
Inch1,5",2",
2,5",3"
fig.7.6.
5000
4500
4000
3500
3000
2500
2000
1500
1000
500
0,1 12345
0
fig.7.7.

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APV
8. Installation
8.1. GeneralTerms
- The valve must be installed in vertical position. Fluids are, therefore,
freely drainable from the valve housing and the leakage chamber.
- Valve housings can be welded direct into the pipelines (completely
dismantable valve insert).
Conductive connection to the pipeline must be provided.
Theintegrationintotheinternalpotentialequalisation
mustbeguaranteed!
-Attention:Observe welding instructions.
- Heights of installation and dismantling (seechapter9).
8.2. WeldingInstructions
Before welding of the valve, the valve insert must be dismantled
from the housing. Careful handling to avoid damage to the parts
is necessary (seepage20,13.1).
It is not necessary to remove the lower shaft seal as it can be
destroyed during dismantling.
- Welding should only be carried out by certified welders (DIN EN ISO
9606-1).SeamqualityDINENISO5817.
- The welding of the valve housings must be undertaken in such a
way that the valve body is not deformed..
- The preparation of the weld seam up to 3 mm thickness must be
carried out as a square butt joint without air. Consider shrinkage!
- TIG orbital welding is best!
Afterweldingofthevalvehousingorofthematingangesandafter
work at the pipelines, the corresponding parts of the installation and
pipelines must be cleaned from welding residues and soiling before
operation of the valves to avoid damage to the valves and seals.
If these cleaning instructions are not observed, welding residues
and dirt particles can settle in the valve and cause damage.
- Any damage resulting from the non-observance of these welding
instructions is not subject to our guarantee.
- Welding directives for aseptic applications shall be drawn from the
AWS/ANSI Directives and EHEDG Guidelines.

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APV
9. Dimensions/Weights
Dimensions in mm inst. dimensions
min. in mm
Weight
in kg
DN AB∅Di F ∅G H L X Y
40 378 120 38 100 163 63 561 660 200 13,7
50 384 126 50 100 163 75 585 680 218 13,8
65 392 134 66 100 163 91 617 700 242 14,0
80 419 146,5 81 120 188 106 671,5 790 274 19,2
100 429 156 100 120 188 125 710 820 303 20,3
Inch
1,5" 379 119 35,1 100 163 63 561 660 197 13,7
2" 385 125 47,8 100 163 75 585 680 216 13,8
2,5" 389 131 60,3 100 163 85 605 700 233 14,0
3" 395 137 72,1 100 163 97 629 790 251 14,2
4" 430 155 97,6 120 188 125 710 820 301 20,3
∅G
∅Di
F F
AH
Y X
L
B

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APV
10. Technical Data
10.1. General data
max. line pressure: 10 bar
max. operating temperature: 135°C EPDM, HNBR
*VMQ, *FPM
short-term load: 140°C EPDM, HNBR
*VMQ, *FPM,
*(no steam)
Tightening torque for stop screw (11)
at upper valve shaft: 15 Nm
Tightening torque for safety nuts (42, 16)
at upper and lower valve shaft: 40 Nm
Cleaning connection (for hose)
DN 40 - 100, 1,5” - 4”: 8 x 1 mm
Ambient temperature: 0 - 40 °C
Air connection (for hose): 6 x 1 mm
max. pneumatic air pressure: 10 bar
min. pneumatic air pressure: 6 bar
Use dry and clean air, only.
10.2. Compressed air quality
- Compressed air quality: quality class acc. to ISO 8573-1
- content of solid particles: quality class 3,
max. size of solid particles per m³
10000 of 0,5 μm < d ≤ 1,0 μm
500 of 1,0 μm < d ≤ 5,0 μm
- content of water: quality class 3,
max. dew point temperature -20 °C
For installations at lower
temperatures or at higher altitudes,
additional measures must be
considered to reduce the pressure
dew point accordingly.
- content of oil: quality class 1,
max. 0,01 mg/m³
The oil applied must be compatible with Polyurethane
elastomer materials.

15
APV_DA3+_ATEX_UK-0_022018.indd
UK
Double seat valve
DELTA DA3+ - ATEX
Instruction manual: UK - rev. 0
APV
10. TechnicalData
10.3. Kvs-valueinm³/h
DN
40 57 46 23 25
50 120 95 42 45
65 219 148 69 78
80 296 200 120 130
100 505 320 164 170
Inch
1,5" 47 70 21 24
2" 100 73 43 46
2,5" 170 122 59 66
3" 213 160 71 80
4" 490 294 150 160
10.4. Air consumption
actuator
Air consumption
seat lift actuator
Closing times
in sec.
DN Inch NL / stroke
valve open
NL / stroke
upper seat lift
NL / stroke
lower seat lift 1m 10m
40 1,5" 0,9 1,1 0,3 1,5 2,5
50 2" 1,1 1,3 0,3 1,5 2,5
65 2,5" 1,3 1,5 0,3 1,5 2,5
3" 1,3 1,5 0,3 1,5 2,5
80 2,3 2,6 0,45 3,0 4,0
100 4" 2,3 2,6 0,45 3,0 4,0