SPX FLOW APV DELTA RG4 User manual

APV DELTA RG4 DN25-150,1”-4”
MODULATING VALVE
SAFETY AGAINST EXPLOSION - FOR SPECIFIC ATEX-APPLICATIONS
FORM NO.: H333927 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 modulating valves of the series RG4 and variants ATEX design
in the nominal diameters DN 25 – 150, 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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APV_RG4_ATEX_UK-0_032018.indd
UK
Modulating Valve
DELTA RG4-ATEX
Instruction Manual: UK-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valve,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
6. Cleaning  9
6.1. Flow areas
7. Installation  9-10
7.1. General terms
7.2. Welding instructions
8. Dimensions/Weights  11-12
8.1. DN design
8.2 Inch design
9. TechnicalData  13-16
9.1. General data
9.2. Compressed air quality
9.3. Materials
9.4. Kvs values
10. Maintenance  17
11. ServiceInstructions  18-21
11.1. Dismantling from line system
11.2. Dismantling of valve / wear parts
11.3. Dismantling of valve / change of kvs value
11.4. Assembly of valve / wear parts
11.5. Assembly of valve / change of kvs value
12. Installation of seat seal 22
12.1. Manual installation of seat seal
13. TroubleShooting       23
14. SparePartsLists  24
 SparePartsListInchdesign  RNATEX01.170.1
 SparePartsListDNdesign  RNATEX01.170.0
 RG4pneumaticactuatorMAT3277MFSnormallyclosed
 andnormallyopen  RNATEX01.170.13-4

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Modulating Valve
DELTA RG4-ATEX
Instruction Manual: UK-0
APV
1. General Terms
This instruction manual applies for DELTA RG4 modulating valves
in the nominal dimensions DN25-150, 1"-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conrmation.Ifin
doubt, contact your SPX FLOW partner.
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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Modulating Valve
DELTA RG4-ATEX
Instruction Manual: UK-0
APV
2. Safety Instructions
Danger!
Do not touch the open valve body 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..
- 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.

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Modulating Valve
DELTA RG4-ATEX
Instruction Manual: UK-0
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!

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Modulating Valve
DELTA RG4-ATEX
Instruction Manual: UK-0
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 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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Modulating Valve
DELTA RG4-ATEX
Instruction Manual: UK-0
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 modulating valve
DELTA RG4 is the flow and pressure regulation of liquids and
gases.
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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Modulating Valve
DELTA RG4-ATEX
Instruction Manual: UK-0
APV
5. ModeofOperation
5.1. Generalterms
Hygienic modulating valves DELTA RG4 are used for the
continuous control of liquid flows in beverage and food
technology as well as in the chemical and pharmaceutical
industry. Modulating valves are suited for the flow and
pressure control of liquids and gases.
The valves are designed for universal applications and stand out
for their increased mechanical reliability and absolute ease of
service.
- In its basic construction, the DELTA RG4 valve is designed as
corner valve and, thus, ensures a good diversion of liquid flows. The
flow direction is from A to B (see fig. 1).
- The body being free from dead spaces proves optimum cleaning
conditions. The crevice-free sealing of the individual parts of the
body is effected by profile seals, thus eliminating any source of
infection.
- The relation between flow and cone stroke is defined by the
characteristics.
- Different kvs values (flow) at certain nominal dimensions can be
reached by different inserts (valve seat / valve cone).
- The table (item 11) shows the parts which have to be replaced if
flow rates are changed. The design of the valves with regard to the
actuating pressure range or flow rate is made by the manufacturer.
- The connections for the electric and pneumatic supply lines are
located laterally at the valve positioner (E).
The pneumatic actuator (D) provides the path and the force to
open or to close the control element. The diaphragm actuator
is suited for longer actuating distances at minimum self-friction.
The valve positioner (C) guarantees the preset coordination
between valve position and control signal. It compares the control
signal (4-20 mA) given by the control device with the stroke of
the control element and defines the pneumatic actuating pressure
as output signal.
positioner
integrated
B
A
EC
D

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Modulating Valve
DELTA RG4-ATEX
Instruction Manual: UK-0
APV
5. ModeofOperation
- Depending on the specific requirement, the modulating valve can be
operated either with spring opening or with spring closing function.
MFS - diaphragm actuator, spring closing
The actuator opens by actuating pressure and closes by spring
pressure.
MFH - diaphragm actuator, spring opening.
The actuator closes by actuating pressure and opens by
spring pressure.
For the various applications, the diaphragm actuators are supplied
with different diaphragm surfaces and different actuating pressures.
In its standard design, the valve positioner is a electro-pneumatic
transformer. A pneumatic valve positioner (control signal 0.2-1.0
bar) is also available for specific operations.
The direction of flows transferred can be
rising (directional equality >>) or falling (directional reverse <>).
Positioner IP3730-11
Installation and instruction manual of electro-pneumatic positioner
IP3730-11
see http://www.samson.de / English / Search (EB 8384-1)
- The positioner is installed laterally at the diaphragm actuator.
Fedback of the valve position is undertaken by mechanical pick-off
below the diaphragm actuator.

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Modulating Valve
DELTA RG4-ATEX
Instruction Manual: UK-0
APV
6. Cleaning
6.1. Flowareas
The passages of the valve are cleaned by the cleaning liquid during
cleaning of the connected pipelines.
The compatibility of the individually selected cleaning processes
andliquidswiththerespectivesealmaterialmustbeveried.
7. Installation
7.1. Generalterms
Installation must be undertaken in such a way that liquids can drain
off the valve housing and should preferably be carried out in vertical
position.
Attention! Observe Welding Instructions 7.2.
Conductive connection to the pipeline must be provided.
The integration into the operational potential equalization must be
guaranteed!

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Modulating Valve
DELTA RG4-ATEX
Instruction Manual: UK-0
APV
7. Installation
7.2. Weldinginstructions
- Welding may only be carried out by certified welders (DIN EN ISO
9606-1). (Seam quality DIN EN ISO 5817).
- Before welding, the insert and the seals must be dismantled.
- During tacking, the lower and lateral flange must be connected with
the housing.
- Welding of the valve housings must be undertaken in such a way
that deformation strain cannot be transfered to the valve body.
- The preparation of the weld seam up to 3 mm thickness must
be carried out in butt manner as an square butt joint without air.
(Consider shrinkage!)
- TIG orbital welding is best!
- After welding of the 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 nonobservance of these welding
instructions is not subject to our guarantee.

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Modulating Valve
DELTA RG4-ATEX
Instruction Manual: UK-0
APV
dimensions in mm weight
in kg
DN actuating surface
(cm²) L A B C Ø Di F Ø EK
25 120 371 163,5 49,5 88 26 98 168 70 9,9
240 379 101 240 65 10,8
40
120 389
169,5 55,5
88
38 115
168 70 11,7
240 391 101 240 65 12,1
350 411 101 280 85 15,1
50
120 395
175,5 61,5
88
50 120
168 70 12,2
240 403 101 240 65 12,7
350 423 101 280 80 15,7
65 240 420 184,0 70,0 101 66 133 240 65 15,1
350 440 280 85 17,4
80 240 435 191,5 77,5 101 81 146 240 65 16,2
350 455 280 85 19,8
100 350 474 201,0 87,0 101 100 159 280 85 22,7
700 540 217,0 390 135 38,7
125 350 506 215,5 104,5 101 125 184 280 85 23,9
700 576 226,5 390 135 39,8
150 700 592 239,0 117,0 101 150 204 390 135 44,0
8. Dimensions/Weights
KCAB
L
F
Ø Di
Ø E
8.1. Integrated
positioner
(metric dimensions)

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Modulating Valve
DELTA RG4-ATEX
Instruction Manual: UK-0
APV
dimensions in mm weight
in kg
Inch actuating surface
(cm²) L A B C Ø Di F Ø EK
1" 120 367,2 161,6 47,5 88 22,2 98 168 70 9,9
240 375,2 101 240 65 10,8
1,5"
120 379,9
167,5 53,9
88
34,9 115
168 70 11,7
240 387,9 101 240 65 12,1
350 407,9 101 280 85 15,1
2"
120 392,6
174,3 60,3
88
47,6 120
168 70 12,2
240 400,6 101 240 65 12,7
350 420,6 101 280 80 15,7
2,5" 240 414,4 181,2 67,2 101 60,3 133 240 65 15,1
350 434,4 280 85 17,4
3" 240 427,0 187,5 73,5 101 72,9 146 240 65 16,2
350 447,0 280 85 19,8
4" 350 471,6 199,8 85,8 101 97,6 159 280 85 22,7
700 537,6 215,8 390 135 38,7
KCAB
L
F
Ø Di
Ø E
8. Dimensions/Weights
8.2. Integrated
positioner
(Inch dimensions)

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Instruction Manual: UK-0
APV
9. TechnicalData
9.1. Generaldata
- max. premissible operating pressure: DN 25 - DN 65 25 bar
DN 80 - DN 100 16 bar
DN 125 - DN 150 10 bar
- correcting ratio: 1 : 50
- standard design: housing 1.4404
inner surface electro-
polishedRa0,8μm 
external surface satin finish
- air pressure of diaphragm actuator: max. 6 bar
(min. 0.4 bar above max.
actuating pressure
e.g. 0.6 - 3 bar
* min.: 3.4 bar)
- reference variable of electro-pneumatic
positioner: 4 - 20 mA
reference variable of pneumatic
positioner: 0.2 - 1 bar
- 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

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Modulating Valve
DELTA RG4-ATEX
Instruction Manual: UK-0
APV
9. TechnicalData
9.2. 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 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.

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Modulating Valve
DELTA RG4-ATEX
Instruction Manual: UK-0
APV
9. TechnicalData
9.3. Materials
RG4components Material
housing, valve shaft, housing
cover, valve seat, flange 1.4404 (DIN EN 10088)
valve yoke 1.4308 (DIN EN 10088)
coupling (compl.)
screws, nuts 1.4301 (DIN EN 10088)
housing seal Standard: EPDM
Optional: HNBR, FPM, VMQ
seat seal, shaft seal,
FGN1 seal
Standard: EPDM
Optional: HNBR, FPM, VMQ
type plate PVC adhesive label
Diaphragmactuator Material
diaphragm shells sheet steel
plastic coated
rolling diaphragm NBR or EPDM
with fabric insert
connecting rod,
intermediate piece
1.4301 (DIN EN 10088)
springs 1.1250 or 1.7102
plastic coated
Positioner Material
housing aluminium pressure die casting,
plastic coated
external parts 1.4301 and. 1.4104
(DIN EN 10088)