SPX FLOW APV DELTA UF3 User manual

APV DELTA UF3(A) / UFR3(A) DN25-100,1”-4”
RELIEF VALVE
SAFETY AGAINST EXPLOSION - FOR SPECIFIC ATEX-APPLICATIONS
FORM NO.: H332844 REVISION: UK-0-ATEX READ AND UNDERSTAND THIS MANUAL PRIOR TO OPERATING OR SERVICING THIS PRODUCT.
INSTRUCTION MANUAL

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 relief valves of the series UF3 and variants ATEX design
in the nominal diameters DN 25 – 100, 1“ – 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 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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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,Responsibilities 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
5.1. General terms
6. AuxiliaryEquipment  8
6.1. Seat lift actuator
6.2. Valve seat variants
6.3. Housingconguration
7. Cleaning  9
7.1. Flow chambers
8. Installation  10-11
8.1. General terms
8.2. Welding instructions
9. Dimensions/Weights  12
10. TechnicalData  13
10.1. General data
10.2. Compressed air quality
11. Maintenance  14-15
12. ServiceInstructions  16-19
12.1. Dismantling from the line system
12.2. Dismantling of wear parts (product-wetted parts)
12.3. Assembly of spring cylinder
12.4. Installation of seals and assembly of valve
12.5. Installation of valve
13. InstallationofSeatSeal      20
13.1. Installation of seat seal in valve shaft
14. TroubleShooting  21
15. SparePartsLists  22
 SparePartsListDNandInchdesign  RNATEX01.054.53

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1. General Terms
This instruction manual applies for DELTA UF3 relief valves in
the nominal dimensions DN25-100, 1"-4" for use in specific ATEX
applications (according to Directive 2014/34/EU).
The valve must only be assembbled, operated, disassembled and
maintained by persons who have been trained accordingly.
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conrmation.Ifin
doubt, contact your local supplier.
All other assembled equipment and devices must have a separate
certication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certiedseparatelybythenal
assembling manufacturer and must have a separate name plate
supplied by the unit manufacturer.

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2. Safety Instructions
Danger!
Do not touch the open valve or the yoke!
Risk of injury due to sudden valve operation.
Risk of injury in dismantled valve state due to sudden valve
operation.
- Regular maintenance including the replacement of all seals and
bearing bushes must be scheduled in order to prevent leakages and
discharge of liquids.
- Additional maintenance of spring-bearing components according to
chapter 12. Maintenance
- 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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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!
- In the sense of the Pressure Equipment Directive 2014/68/EU, the
DELTA UF3/UFR3 relief valve is a "pressure-retaining component"
and is not a "component with safety function", i.e. the valve must
not be used as safety valve.

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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 (product and cleaning liquid) plus a safety addition for local
temperature increases. The valve must be completely free to the
environment in order to provide for sufficient heat release.
All data (temperature classes) refer to an ambient temperature
of 0°C to 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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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 DELTA UF3 relief
valve is to prevent the max. product pressure from being exceeded
or to discharge a certain product quantity.
Attention:
In the sense of the Pressure Equipment Directive 2014/68/EU, the
DELTA UF3/UFR3 relief valve is a "pressure-retaining component"
and is not a "component with safety function", i.e. the valve must
not be used as safety valve.
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.
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certicationsforthisandotherinnovativeSPXFLOW
products, visit
https://www.spxow.com/en/apv/about-us/certications/

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5. ModeofOperation
5.1. Generalterms
The valve has been developed for use in the brewing and beverage,
dairy and food industries as well as for chemical and pharmaceutical
applications.
The valves are designed for universal applications and stand out
for their increased mechanical reliability and absolute ease of
service.
The DELTA UF3/UFR3 relief valve is used to prevent a desired
product pressure from being exceeded due to process requirements
or to discharge a certain product quantity.
If the preset opening pressure is exceeded, the valve is opened
automatically by the imminent line pressure in the supply line (A)
under the valve seat. The liquid is drained via the discharge line (B).
If the adjusted set value falls short, the valve is closed by spring
force. .
The flow direction is always from A B.
Attention:
DIn the sense of the Pressure Equipment Directive 2014/68/EU, the
DELTA UF3/UFR3 relief valve is a "pressure-retaining component"
and is not a "component with safety function", i.e. the valve must
not be used as safety valve.
Proximity switches to signal the valve position can be installed in the
yoke area (C).
The use of valve position indicators which are approved for the
application in explosive atmosphere is compulsary.
The use and operation of valve position indicators shall be
evaluated by the operator of the installation!
Assembly, see chapter 12.5.4.
DELTA UF3/ UFR3
relief valve
A
B
C

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6. AuxiliaryEquipment
6.1. Seatliftactuator
The UF3 valve can be equipped with a seat lift cylinder if requied for
cleaning technical reasons . (see chapter 7.)
6.2. Valveseatvariants(fig.6.2.)
Valveseatinatandconicaldesign,forspecialrequirements,are
available. Through the use of a valve seat with regulating cone,
theowbehaviouratlowowquantitiesisimprovedanda"softer"
valve closing is achieved.
The valve variant is called "UFR3".
6.3. Housingconfigurations(fig.6.3.)
Different housing shapes can be applied to reduce dead spaces to a
minimum.
seat lift actuator
regulating cone
fig. 6.3.
fig. 6.2.
fig. 6.1.
UF31
UF32
UFE31
UFE33
UFE32
UFE34

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7. Cleaning
Optimum cleaning is given if the seat lift actuator (E) drives
the valve seat into the position “on” during the cleaning process
(fig. 5.1).
During this process, the cleaning liquid can flush the seal
surfaces.
After termination of the cleaning step, the seat lift actuator is vented
and the valve seat moves into "closed" position by spring force.
7.1. Theflowchambers
The passages of the valve are cleaned by the cleaning liquid during
cleaning of the connected pipelines.
Depending on the degree and substances of soiling, cleaning
liquids, times and processes must be scheduled for the individual
application.
The compatibility of the individually selected cleaning processes
andliquidswiththerespectivesealmaterialmustbeveried.
seat lift actuator (E)
valve seat
regulating cone

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8. Installation
8.1. Generalterms
Installation has to be done in such a way that liquids can drain off
the valve housing. Vertical position is preferred.
Valves can be welded direct into the pipeline (valve insert
completely dismantable).
- After the installation, the set value must be adjusted by a pressure
gauge.
Adjustment: turn right = pressure increase
turn left = pressure reduction
If required, the value can be corrected during production
by turning the adjusting screw at the spring cylinder.
Attention! Observe Welding Instructions 8.2.
Conductive connection to the pipeline must be provided.
The integration into the operational potential equalization must be
guaranteed!

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8. Installation
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.
- 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 housings or of the mating flanges
and after work at the pipelines, the corresponding parts of the
installation or pipelines must be cleaned from welding residues
and soiling.
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.

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9. Dimensions/Weights
* *** *** **
pressure range
(bar) A1 A2 Ø Di F L1 L2 Ø K Weight in kg
DN Inch flat cone with-
out with DN Inch with- out
with-
out
with-
out
with-
out
25 1" 0-6,8 0-5,4 310 395 26 22,2 50 360 445 53 2,4 4,9
25 1" 0-10,0 0-10,0 353 438 26 22,2 50 403 488 53 2,6 5,1
40 1,5" 0-3,5 0-2,9 316 401 38 34,9 67 383 468 53 3,3 5,8
40 1,5" 0-7,5 0-6,3 359 444 38 34,9 67 426 511 53 3,5 6,0
40 1,5" 0-10,0 0-10,0 389 474 38 34,9 67 456 541 85 5,6 8,1
50 2" 0-2,1 0-1,8 322 407 50 47,6 72 394 479 53 3,8 6,3
50 2" 0-4,5 0-4,0 365 450 50 47,6 72 437 522 53 4,0 6,5
50 2" 0-10,0 0-10,0 395 480 50 47,6 72 467 552 85 6,1 8,6
65 2,5" 0-1,2 0-1,1 330 415 66 60,3 85 415 500 53 5,2 7,7
65 2,5" 0-2,7 0-2,4 373 458 66 60,3 85 458 543 53 5,4 7,9
65 2,5" 0-7,6 0-7,0 403 488 66 60,3 85 488 573 85 7,5 10,0
65 2,5" 0-10,0 0-10,0 451 536 66 60,3 85 536 621 85 8,0 10,5
3" 0-1,1 0-1,0 333 418 72,9 90 423 508 53 6,6 9,1
3" 0-2,3 0-2,1 376 461 72,9 90 466 551 53 6,8 9,3
3" 0-6,5 0-6,0 406 491 72,9 90 496 581 85 8,8 11,3
3" 0-10,0 0-10,0 454 539 72,9 90 544 629 85 9,3 11,8
80 0-0,9 0-08 338 423 81 98 436 521 53 6,7 9,2
80 0-1,8 0-1,7 381 466 81 98 479 564 53 6,9 9,4
80 0-5,2 0-4,8 411 496 81 98 509 594 85 9,0 11,5
80 0-10,0 0-10,0 459 544 81 98 557 642 85 9,5 12,6
100 4" 0-0,6 0-0,5 347 432 100 97,6 111 458 543 53 8,5 11,0
100 4" 0-1,2 0-1,1 390 475 100 97,6 111 501 586 53 8,7 11,2
100 4" 0-3,5 0-3,2 420 505 100 97,6 111 531 616 85 10,8 13,3
100 4" 0-8,3 0-7,7 468 553 100 97,6 111 579 664 85 11,3 13,8
Di
ØK
L1
L2
A1
A2
F
F
spring cylinder with
seat lift actuator
* without/withregulatingcone
** weightwithout/withseatliftact.
*** dimensionwithout/withseatliftact.
spring cylinder

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10. TechnicalData
10.1. Generaldata
- Product-wetted parts: 1.4404 (DIN EN 10088)
- Other parts: 1.4301 (DIN EN 10088)
- Seals: standard design EPDM
- option: HNBR, VMQ, FPM
- max. line pressure 10 bar or acc. to
drawing data
- max. operating temperature: 135°C EPDM, HNBR
*FPM, *VMQ
- short-term load: 140°C EPDM,
HNBR *FPM, *VMQ
*(no steam)
- ambient temperature: 0 - 40 °C
- air connection (for hose): 6 x 1mm
- control pressure for seat lift actuator: 10 bar max. / 6 bar min.
Depending on the size of the spring cylinder, the response
pressure can be adjusted variably or up to max. 10 bar. (or
according to drawing data)
- The minimum response pressure can be > 0 bar depending on the
valve mounting position and the friction of the shaft seal.
Use dry and clean control air only!
10.2. Compressedairquality
- Compressed air quality: quality class according to ISO 8573-1
- Content of solid particles: quality class 3,
max. number of 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 4,
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.

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11. Maintenance
The maintenance intervals depend on the corresponding
application and are to be determined by the operator himself
carrying out temporary checks.
The valve must not be cleaned with products containing abrasive
or polishing material. Especially the valve shaft must not, under
any circumstances, be cleaned with such agents. Damage of the
valve shaft can lead to leakages.
Before start of maintenance and assembly the operator must make
sure that an explosive atmohsphere does not exist (detection/
measurement of potential concentration of hazardous substances).
Alternatively, use spark-resistant tools!
Exchange of seals is done according to Service Instructions.
Customer stock keeping of spare seals is recommended.
For valve service actions we supply complete seal kits
including seal grease (see spare parts lists).
 Attention! Use food-grade grease and special greases being
suited for the respective seal material, only!
Recommendation:
APV assembly grease for EPDM, FPM, HNBR and NBR
(0,75kg/tin -ref.-No.00070-01-019/93;H147382)
(60g/tube -ref.-No.00070-01-018/93;H147381)
or
APV assembly grease for VMQ (Silicone)
(0,6kg/tin -ref.-No.00070-01-017/93;H147380)
(60g/tube -ref.-No.00070-01-016/93;H147379)
! Do not use grease containing mineral oil for EPDM seals.
! Do not use Silicone-based grease for VMQ seals.
Less suited grease types can influence function and service life.

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11. Maintenance
Additionally required maintenance for applications in ATEX
environment
Valvemaintenance
forspring-bearing
components
Note
Functional test,
visual inspection of actuator
stroke and
control of abnormal running
noise of the spring
1 x per year
Change interval
(spring cylinder and seat lift
actuator)
In case of damage,
incomplete actuator movement,
considerable running noise of
spring as well as
after 250,000 cycles* as
preventive measure, however,
after 10 years at the latest.
*complies with about 8 years in 1-shift-operation and 10-15 cycles per hour.