Volth ARGO HYTOS SD2P2X-B4 User manual
Operating instruction_SD2P2X-B4_15324_1en_09/2023
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ARGO-HYTOS s.r.o.
Dělnická 1306, CZ 543 01 VRCHLABÍ
SOLENOID OPERATED SCREW-IN PROPORTIONAL
DIRECTIONAL CONTROL VALVE,
DESIGNED FOR USE IN POTENTIALLY EXPLOSIVE ATMOSPHERES
SD2P2X-B4
Operating instructions
The following is the authorised translation of original Instructions for use SD2P2X-B4 no. 15324_1cz_07/2023,
issued by the manufacturer:
Important! Read the instructions before using the product.
Save the instructions for future reference.
If the operating instructions are lost, new ones can be found on the ARGO-HYTOS website www.argo-hytos.com
EN
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Declaration of conformity
PROHLÁŠENÍ O SHODĚ
ARGO
-HYTOS
o
I
Typ I Type I Typ Cís/o I No. I N Vydán I lssued I Ausgestellt
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UK DECLARATION OF CONFORMITY
ARGO
-HYTOS
Dělnická 1306, 543 15 Vrchlabí, Czech Republic
o co, s
�
°°° °
D
1
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Contents of operating instructions
Chapter Strana
Declaration of conformity 2
Overview of signal words and warning signs used in the text 8
Overview of the symbols and signs used in the text 8
Glossary of technical terms used 8
1. Use of the product 8
2. Valve protection against intitiation of explosion in explosive atmospheres 9
2.1 Protection of electrical parts 9
2.2 Cable gland 10
2.3 Protection of non-electrical parts 10
2.4 Applicable legislation and standards 10
3. Risks and limitations of product use 11
3.1 Risks associated with operating in explosive atmospheres 11
3.2 Risks associated with the hydraulic part of the valve 11
3.3 Risks associated with the electrical part of the valve 11
4. Product description 12
4.1 Manual override 12
4.2 Materials used 12
4.3 Surface protection against corrosion 13
4.4 Basic technical parameters 13
4.5 Working fluid 13
4.6 Valve characteristics 13
4.7 Legislation and standards 15
5. Product modifications 15
6. Target group of users 15
7. Operating instructons broken down into product life stages 16
7.1 Transportation and storage of the product 16
7.2 Installation of the product 16
7.2.1 Electrical connection of coils 16
7.2.2 Connecting the valve to the hydraulic circuit 18
7.3 Commissioning 20
7.4 Normal operation 20
7.5 Extraordinary and emergency situations 20
7.6 Repairs carried out by specialist 21
7.6.1 Replacing a faulty valve 21
7.6.2 Replacing the sealing rings at the base of the valve body 22
7.7 Product maintenance 22
7.8 Spare parts supplied 22
7.9 Product disposal 23
8. Manufacturer contact 23
1. Based on legislative requirements, all operators in the logistics chain, from the manufacturer of the certified Ex solenoid coil to the end user
of the complete equipement, are obliged to make and maintain traceability records of Ex products, enabling, if necessary, the withdrawal
of products of certain serial numbers from the market due to defects of non-conformities, endangering safety of use in an explosive
atmosphere. In practice, this means keeping records of the assignment of Ex coil/valve identification numbers to the identification numbers
of the operators immediately down the logistics chain.
2. To meet the requirement for traceability of Ex products, it is necessary to keep product type labels legible throughout their technical life.
Mandatory traceability
Related documents:
Ex-coil EX18 user manual (Original document B18 of the coil manufacturer, SCHIENLE)
Product datasheet: Screw-in spool type proporcional directional control valve SD2P2X-B4 (no. 5324)
Datasheet: General Technical Information GI (no. 0060)
Spare parts catalogue SP (no. 8010)
Datasheet: Tools for machining chambers for screw-in valves SMT (no 0019)
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An overview of signal words and warning signs used in the text
An overview of other symbols and abbreviations used in the text
Symbol, designation Description of the meaning of the symbol, designation
AC, DC Designation for alternating (AC) and direct (DC) current, voltage
ATEX Explosive Atmospheres
EPL Equipment Protection Level (see EN 60079.0)
IEC International Electrotechnical Commission
NBR Rubber used for the manufacture of seals
PA Polyamide
PE Polyethylene
PU Polyurethane
Glossary of technical terms used
›A hydraulic mechanism is one in which energy is transmitted via the pressure energy of the working fluid.
›A hydraulic directional control valve is a valve designed to control the direction of movement or stop the output component of an appliance.
›The volumetric flow rate Q is the amount of liquid in volume units that flows through a given flow cross-section per time unit (SI unit is
m3s-1, in practice the unit l/min is used)
›The control solenoid is designed to reposition the valve spool that interconnects or closes the ports in the body. The solenoid consists of
an excitation coil which, by passing an electric current through the winding, generates a magnetic field which exerts a force on the armature of
the mechanical actuating system.
›The proportional hydraulic valve regulates the hydraulic parameter in the circuit continuously within a given range depending on the
magnitude of the electrical input control signal.
›The screw-in valve is designed to be screwed into the shaped cavity in the hydraulic block. The valve body is replaced by a steel sleeve in
which the spool or poppet moves.
›Pressure is the force acting per area unit (SI unit Pascal (1 Pa = Nm-2), in practice the unit used is bar (1bar = 0.1MPa)
1. Use of product
The SD2P2X-B4 hydraulic valve is a directly controlled proportional spool valve, operated by a solenoid. The valve is designed to be screwed into
a B4 (C-10-4) shaped cavity in a block with a 7/8-14 UNF connection thread. The shape and dimensions of the screw-in cavity conform to the
technical specification ISO/TR 17209.
The screw-in proportional directional control valve with special port opening timing combines two functions. The basic function is the control of
the volume flow rate in the appliance branch and thus the speed of movement of the appliance output component (piston feed in the cylinder,
rotary hydraulic motor shaft speed). The second function is to open the check valve at the start of the movement. The check valve secures the
position of the load suspended on the appliance when the power supply is switched off. The valve can be used for a single-acting cylinder, where
the reciprocating piston secures the load, or for a rotary hydraulic motor, where one direction of rotation secures the load (e.g., winch drive). For a
double-acting cylinder or rotary hydraulic motor with drive in both directions of shaft rotation, two valves must be used (for appliance branches A,
B). The use of two independent valves in the A, B branches allows efficient control of the appliance. In conjunction with the pressure sensors, the
movement of the appliance can be safely controlled without the use of brake trigger valves even under negative load.
A B C
Piston movement is
blocked
by closing
the check valve.
The check valve is
open, the piston
moves downwards
due to the load.
The check valve is
open, the piston
moves upwards at a
continuously adjustab-
le speed.
F
F
▼F
F
▼
F
F
▼
Example of a valve connection in a hydraulic circuit
DANGER Signal word combined with a warning sign used to signify that a dangerous situation which could result in
death or serious injury is imminent.
WARNING Signal word combined with a warning sign used to signify the occurrence of a potentially dangerous situation
that could result in death or serious injury if not avoided.
CAUTION Signal word combined with a warning sign used to signify a potentially hazardous situation which, if not
avoided, may result in minor or moderate injury.
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Valves with ATEX certification according to Directive 2014/34/EU and IECEx certification according to IECEx OD 009 and related harmonized
standards may be used in explosive atmospheres consisting of mine gas, gas or dust. The valves are marked with the CE Ex mark of conformity and
are accompanied by a Declaration of Conformity.
Use in explosive atmospheres:
Equipment - group I, mines, where the explosive atmosphere of firedamp consists predominantly methane.
The valve has a high level of safety (EPL = Mb), which makes initiation unlikely during the interval between gas discharge and valve shutdown.
It is designed for category M2 devices that remain off after gas discharge.
Equipment - group II, where the explosive atmosphere consists of gasses other than mine gas.
The valve has a high level of safety (EPL = Gb) which allows the valve to be used in zones 1 and 2. The valve must not be used in zone 0.
There is a risk of explosion. The valve is certified for gas groups IIA (typical gas is propane), IIB (typical gas is ethylene) also for hydrogen from group IIC.
The joint dimensions do not meet the requirements for Group IIC acetylene.
Equipment - group III, where the explosive atmosphere consists of dust and flammable flying particles.
The valve has a high level of safety (EPL = Db) which allows the valve to be used in zones 21 and 22. The valve must not be used in zone 20. There is
a risk of explosion. The valve is certified for all dust groups - IIIA (flammable flying particles), IIIB (non-conductive dust) and IIIC (conductive dust).
2. Valve protection against initiation of explosion of explosive atmosphere
2.1 Protection of electrical parts
The electrical part of the valve is an ATEX and IECEx certified solenoid coil.
The basic is the „d“ protection by flameproof enclosure (EN 60079-1, IEC 60079-1), which prevents the penetration of hot gases into the surroun-
ding explosive atmosphere in the event that an explosion is initiated inside the flameproof enclosure. For explosive atmospheres consisting of dust,
the enclosure „t“ (EN 60079-31, IEC 60079-31) is used. In addition, the coil is sealed with a potting compound.
Certification across standards NEC 500 and NEC 505, 506
NEC 500 (USA), Annex J (Kanada) NEC 505, 506 (USA) CEC Section 18 (Kanada)
Class I Division 1 Group B, C, D T4 Cl 1 Zone 1, AEx db IIB+H2 T4 Ex db IIB+H2 T4 Gb
Class II/III Division 1 Group E, F, G T4 Zone 21, AEx tb IIIC T135°C Db Ex tb IIIC T135°C Db
I M2 Ex db I Mb
II 2G Ex db IIB + H2 T4 Gb
II 2D Ex tb IIIC T135°C Db
Certification ATEX, IECEx and UKCA
Use of the valve in potentially explosive atmospheres
Certification Number Issued Certification body
EU-Type Examination Certificate FM23ATEX0008X 13.6.2023 FM Approvals Europe Ltd. (Notified body No. 6024)
One Georges Quay Plaza, Dublin, Ireland D02 E440
IECEx Certificate of Conformity IECEx FMG 23.0003X 12.6.2023 FM Approvals LLC
1151 Boston-Providence Turnpike, Norwood, MA 02062, USA
UK-Type Examination Certificate FM23UKEX0010X 16.6.2023 FM Approvals Ltd. (Approved body No. 1725)
Voyager Place, Maidenhead, Berkshire, SL6 2PJ, UK
Equipment - group I – MINES Equipment - group II (IIG) - GAS Equipment - group III (IID) - DUST
Category M1– NO Zone 0 - NO Zone 20 - NO
Categorie M2
(the device remains
switched off)
Zone 1
Zone 2
IIA (propane) Zone 21
Zone 22
IIIA (flammable particles)
IIB (ethylene) + H2 (hydrogen) IIIB (non-conductive dust)
IIIC (conductive dust)
Area of application:
The valves are available in three surface temperature classes:
T4 with a maximum surface temperature of 135 °C
The use of the valve in the temperature class is subject to the maximum supply voltage of the coil not being exceeded, the working
fluid temperature and the ambient temperature not being exceeded (see Table 4.4 Basic technical parameters).
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Group Description Corresponds to EPL
Group B A typical gas is hydrogen Gb
Group C The typical gas is ethylene Gb
Group D Typical gases are methane and propane Gb
Group E Conductive dust Db
Group F Coal dust Db
Group G Non-conductive dust, grain dust Db
Class III Flammable airborne particles, paper or cotton processing Db
Certificate Number Issued Certification body
Certificate of Conformity FM23US0009X 12.6.2023 FM Approvals LLC
1151 Boston-Providence Turnpike, Norwood, MA 02062, USA
Certificate of Conformity FM23CA0005X 12.6.2023 FM Approvals LLC
1151 Boston-Providence Turnpike, Norwood, MA 02062, USA
2.2 Cable gland
The cable gland is a separately certified ex-component. A gland with certified type protection „d“ must be used to prevent hot gases from escaping
and initiating an explosion in the surrounding environment in the event of an explosion in the interior of the coil casing.
(The gland is not included with the valve.)
I M2 Ex db I Mb
II 2G Ex db IIC Gb
II 2D Ex tb IIIC Db
2.3 Protection of non-electrical parts
The non-electrical part of the valve consists of the hydraulic part and the solenoid actuating system.
The safety of the non-electrical parts has been ensured and assessed according to ISO 80079-36 and ISO 80079-37 and EN ISO/IEC 80079-38.
› The moving parts, the spool / poppet, armature and pin of the actuating system, perform a sliding motion in a space separated by a seal from the
surrounding environment and flooded with working fluid.
› Not exceeding the maximum surface temperature of the given temperature class is conditioned by not exceeding the maximum temperature
of the working fluid (70 °C), the maximum ambient temperature (see table 4.4 Basic technical parameters) and the nominal voltage of the coil.
› The valve body and coil body are of robust construction, sufficiently resistant to destruction by mechanical shock.
(Valve body impact resistance test performed according to EN IEC 60079-0 paragraph 26.4.2: two impacts with a weight with a hardened head of
diameter D25 mm, weighing m = 1 kg, falling from a height of 0.7 m, with a total potential energy of 7 J)
› The hydraulic section has sufficient compressive strength, tested at 1.5 times the maximum operating pressure of the fluid.
› The surface of the valve is grounded using a grounding screw and protected against static electricity discharge.
› The construction materials used meet the requirements for limited content of certain elements to prevent the formation of electrical cells and
excessive corrosion.
› The surface materials used do not produce sparks during mechanical impacts.
Non-electrical parts
of valve
I M2 Ex h I Mb
II 2G Ex h IIC T4 Gb
II 2D Ex h IIIC T135°C Db
The valve complies with the relevant requirements of legislation and standards:
Směrnice 2014/34/EU (harmonizované NV ČR 116/2016) Zařízení pro prostředí s nebezpečím výbuchu (ATEX)
IECEx OD 009 Operational Document
The following standards were used to assess the conformity of the electrical part:
CENELEC EN IEC 60079-0
Explosive atmospheres – Part 0: Equipment – General requirements
EN 60079-1, IEC 60079-1
Explosive atmospheres – Part 1: Equipment protection by flameproof enclosure „d“
EN 60079-31, IEC 60079-31
Explosive atmospheres – Part 31: Equipment dust ignition protection by enclosure „t“
The following standards were used to assess the conformity of the non-electrical part:
EN 1127-1
Explosive atmospheres – Explosion prevention and protection – Part 1: Basic concepts and methodology
ISO 80079-36
Explosive atmospheres – Part 36: Non-electrical equipment for explosive atmospheres – Basic method and requirement
ISO 80079-37
Explosive atmospheres – Part 37: Non-electrical equipment for explosive atmospheres – Non-electrical type of protection constructional safety „c“,
control of ignition sources „b“. liquid immersion „k“
EN ISO/IEC 80079-38
Explosive atmospheres – Part 38: Equipment and components in explosive atmospheres in underground mines
2.4 Applicable legislation and standards
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3. Risks and limitations of product use
3.1 Risks associated with operating in explosive atmospheres
DANGER
Maximum operating pressure
The valve may be used for a maximum working fluid pressure of 250 bar in the P, A, B ports and 100 bar in the
T port. If the maximum pressure is exceeded, the valve may be damaged and the valve may burst if the pressure
value is exceeded. The T-port should be relieved for proper valve operation.
DANGER
Maximum hydraulic output
In section 4.6 of the datasheet for the operating limits for each spool type. The hydraulic capacity is given by
the product of the working pressure and the volumetric flow rate. If the instantaneous power exceeds the curve
limit, the valve may lose function. The spool is subject to excessive hydrodynamic forces the valve will not stop
and as a result, control of the appliance will be lost.
WARNING
Valve installation
The valve may only be installed in the corresponding chamber. The seals must not be damaged. The valve must
be tightened to the specified tightening torque of 35+5 Nm. Otherwise, there is a risk of leakage of the
working fluid and pressure release of the valve. (For details see paragraph 7.2 Product installation)
CAUTION
Maximum operating temperature
The maximum operating temperature must not exceed the temperature range allowed in paragraph 4.4 Basic
technical parameters or in the datasheet. Both the temperature of the operating fluid and the ambient tempera-
ture significantly influence:
a) the surface temperature of the valve
b) the temperature of the solenoid coil winding - there is a risk of a reduction in hydraulic performance
c) the seal material - risk of seal damage and leakage of the working fluid.
CAUTION
Surface temperature of the valve
The surface temperature of the valve can exceed 100 °C due to the temperature of the working fluid and pressure
loss in the valve being converted to heat. Do not touch the surface of the valve when the circuit is operational,
even after switching off. Wait until it has cooled down to a safe temperature. There is a risk of burns
CAUTION
Working fluids used
Valves may only be used for normal working fluids, especially hydraulic oils (see chapter 4. Product description).
It is forbidden to use the following as working fluids, in particular:
› water and aquesous solutions that will cause corrosion and loss of valve function
› liquids which are flammable or explosive, the heating of which may cause fire or explosion when
passing through the valve
› aggresive liquids (e.g. acids and hydroxides) which will cause damage to the valve and loss of function.
The flash point of the used working fluid must be at least 50 K higher than the maximum allowed of surface
temperature of the valve in the given temperature class.
3.2 Risk associated with the hydraulic part of the valve
DANGER
Explosive atmosphere type and zone
The valve must not be used outside the specified range (see paragraph 1Product use ), in particular it is not
intended for equipment category M1group l (mines) zone 0 group II (gases) and zone 20 group III (dust).
Risk of explosion.
DANGER
Surface temperature
When selecting the valve, the surface temperature requirement of the valve must be taken into account.
It must be min. 25 °C lower than the temperature necessary to initiate an explosion of an explosive
atmosphere of a given composition. If the initiation temperature is exceeded an explosion will occur.
DANGER
Handling in an explosive atmosphere
It is forbidden to install, disassemble, repair or replace the valve in an exlosive atmosphere.
Risk of explosion.
DANGER
Electrical shock
The solenoid coil is an electrical device that should be connected by a person with appropriate electrical
qualifications. Before connecting the solenoid, check the parameters of the power supply, the integrity of the
cable and the solenoid. There is a risk of electric shock.
CAUTION
Electrical supply values
The solenoid coil is energised by the electrical current passing through the winding. The values of the electrical
supply must not exceed the values indicated on the coil. There is a risk of losing solenoid function.
3.3 Risks associated with the electrical part of the valve
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4. Product description
The hydraulic part of the valve consists of a steel housing (1) with radial port outputs (P, A, B) and axial output (T).
A hardened slide spool moves inside the housing and is held in its basic position by a return spring. The spool is adjusted to the extreme position by
means of an explosion-proof certified solenoid (2). The solenoid coil is fixed to the control system by a hexagonal nut (3).
The thread adapter (4) with an optional thread is used to connect the power cable, e.g. using a suitable cable gland.
Without designation - standard
4.1 Manual override dimensions in mm(in)
CAUTION
Use of the monual override is forbidden when the valve solenoids are operational.
If the valve is operated by solenoids do not use the manual override of the valve spool.
Valve damage and loss of function may result.
4.2 Materials used:
The spool position manual override, built into the rear of the solenoid actuating system, is used to
reposition the spool in the event of loss of solenoid function or loss of electrical supply to the solenoid
coils to achieve the safe position of the actuated mechanism.
The use of manual override is limited by the maximum T-port pressure of 25 bar.
2
3
T
AP B
1
4
Spool - hardened steel
Compression spring - patented steel wire for the production of springs
Valve housing - steel
Valve seal – NBR, Polyurethane
Pole piece, tube, and armature of actuating system - low carbon steel
Non-magnetic ring and pin of actuating system – Cr-Ni stainless steel
End plug of actuating system – brass
Coil core – stainless steel
Coil winding - enamelled copper wire
Coil housing, thread adapter, stopping plug and coil hexagonal nut - low carbon steel
Coil sealing on actuating system – silicone rubber
The materials used are not included in the lists of prohibited and mandatory documented substances Directive 2015/863/EU (RoHS) and
EU Regulation 1907/2006 (REACH).
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4.4 Basic technical parameters
Parameter Unit Value
Valve connection thread 7/8-14 UNF / B4 (C-10-4)
Maximum operating pressure at ports P, A, B bar (PSI) 250 (3630)
Maximum pressure in the T-port (the T-port should be relieved for proper operation) bar (PSI) 100 (1450)
Maximum volume flow through the valve at ∆p = 10 bar l/min (GPM) 5 (1.30) 25 (6.60)
Pressure drop bar (PSI) graf ∆p = f (Q)
Fluid temperature range °C (°F) -30 … + 70 (-22 ... 158)
Signal response 100% ms < 50
Working fluid kinematic viscosity range mm2s-1 10 to 400
Minimum required working fluid purity class 19/15/13 ISO 4406
Lifetime cycles 107
Weight of valve with solenoid kg (lbs) 2.17 (4.78)
Technical data of the solenoid with certification for explosive environments
Nominal supply voltage (UN) V DC 12 24
Supply voltage fluctuations ±10 % UN
Limit current through coil A 1.32 0.64
Coil winding resistance at 20 °C Ω 7.6 31.2
Supply coil input power W 18
Duty cycle S1 100 % ED
Optimal frequency PWM Hz 200
Electrical protection IP according to EN 60529 IP66 / IP68*
Ambient temperature range for surface temperature class T4
Temperature class Nominal coil input power °C (°F) Ambient temperature range
T4 – 135 °C 18 W -30 ... +60 (-22 ... +140)
*Test procedure IP68: Pressure 1 m under water, test duration 24 h. The indicated IP protection level is only achieved if the cable is properly mounted.
4.3 Surface protection against corrosion:
The valve surface is zink-coated with 520 h corrosion protection in NSS according to ISO 9227. Surface layer without hexavalent chronium Cr+6.
› the valve is designed for common hydraulic working fluids:
› mineral oils of performance classes HM and HV according to ISO 6734-4
› non-flammable and difficult to ignite hydraulic fluids according to ISO 12922
› environmentally acceptable hydraulic fluids according to ISO 15380
NOTICE: NBR and Polyurethane seal material is not suitable for some working fluid groups, such as the HFD group.
In case of uncertainty, we recommend to perform a test of the mutual tolerance of the seal material and the working fluid.
4.5 Working fluid
Characteristics measured at ν= 32 mm2/s (156 SUS)
4.6 Valve characteristics
(2.6)
(4)
(1.3)
(5.3)
(6.6)
10
15
5
20
25
40
(13.2)
35
30
A-T
020 40 60 80
100
45
50
(11.9)
(10.6)
(9.3)
(7.9)
B-TP-A
P-B
Δp 50 bar (730 PSI)
A→T: Δp 100 bar (1450 PSI)
Control signal current Ic [%]
Flow Q [l/min (GPM)]
Control signal current Ic [%]
Flow Q [l/min (GPM)]
Operating limits SD2P2X-B4/H3Y13-5 Function diagram SD2P2X-B4/H3Y13-25
(2.6)
(4)
(1.3)
(5.3)
(6.6)
10
15
5
20
25
40
(13.2)
35
30
A-T
020 40 60 80
100
45
50
(11.9)
(10.6)
(9.3)
(7.9)
B-T
P-A
P-B
Δp 50 bar (730 PSI)
A→T: Δp 100 bar (1450 PSI)
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50 100 150 200 250
P-A
(2.6)
(1.3)
(4.0)
15
5
20
25
0
(6.6)
(5.3)
(730) (1450) (2180) (2900) (3630)
10
50 100 150 200 250
P-A
(2.6)
(5.3)
(7.9)
10
20
40
30
0
50
(15.9)
(13.2)
(10.6)
(730) (1450) (2180) (2900) (3630)
60
Operating limits SD2P2X-B4/H3Y13-5 Operating limits SD2P2X-B4/H3Y13-25
Pressure p [bar (PSI)]
Flow Q [l/min (GPM)]
Pressure p [bar (PSI)]
Flow Q [l/min (GPM)]
5 10 15 20 25 30 35 40 45 50
P-A
(725)
(1450)
50
100
0
200
(2900)
(2180)
(2.6) (5.3) (7.9) (10.6) (13.2)
150
P-B
5 10 15 20 25 30 35 40 45 50
P-A
(145)
(290)
10
20
0
50
(725)
(580)
(435)
(2.6) (5.3) (7.9) (10.6) (13.2)
40
30
P-B
Pressure drop SD2P2X-B4/H3Y13-5 Pressure drop SD2P2X-B4/H3Y13-25
Pressure pin - pt[bar (PSI)]
Pressure pin - pt[bar (PSI)]
Flow Q [l/min (GPM)] Flow Q [l/min (GPM)]
(1.3)
(2.6)
5
10
0
15
(5.3)
(4.0)
30 40 50 60 70 80 90 100
20
Operating limits SD2P2X-B4/H3Y13-5 Operating limits SD2P2X-B4/H3Y13-25
Control signal [%]
Flow Q [l/min (GPM)]
1Δp 10 bar (145 PSI) 5 pin 150 bar (2180 PSI)
2 pin 20 bar (290 PSI) 6 pin 250 bar (3630 PSI)
3 pin 50 bar (725 PSI) 7 pin 200 bar (2900 PSI)
4 pin 100 bar (1450 PSI)
1 pin 250 bar (3630 PSI) 5 pin 150 bar (2180 PSI)
2 pin 200 bar (2900 PSI) 6 pin 100 bar (1450 PSI)
3 pin 20 bar (290 PSI) 7 pin 50 bar (725 PSI)
4Δp 10 bar (145 PSI)
Flow P - A
(5.3)
10
20
0
50
(13.2)
(10.6) 40
30
30 40 50 60 70 80 90 100
(7.9)
(2.6)
Control signal [%]
Flow Q [l/min (GPM)]
Flow P - A
1
2
3
4
5, 6
7
(4.2)
8
16
0
40
(8.5)
(6.3)
32
24
48
(10.6)
(12.7)
10 20 30 40 50 60 70 80 90 100
(2.1) 1
6
2
3
4
5
(1.1)
(2.1)
4
8
0
20
(4.2)
(3.2)
16
12
10 20 30 40 50 60 70 80 90 100
24
(5.3)
(6.3)
1
6
2
3
4
5
Operating limits SD2P2X-B4/H3Y13-25Operating limits SD2P2X-B4/H3Y13-5
Control signal [%] Control signal [%]
Flow Q [l/min (GPM)]
Flow Q [l/min (GPM)]
Průtok A - T Flow A - T
1 pin 20 bar (290 PSI) 4 pin 150 bar (2180 PSI)
2 pin 50 bar (725 PSI) 5 pin 200 bar (2900 PSI)
3 pin 100 bar (1450 PSI) 6 pin 250 bar (3630 PSI)
1 pin 20 bar (290 PSI) 4 pin 150 bar (2180 PSI)
2 pin 50 bar (725 PSI) 5 pin 200 bar (2900 PSI)
3 pin 100 bar (1450 PSI) 6 pin 250 bar (3630 PSI)
Operating instruction_SD2P2X-B4_15324_1en_09/2023
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5. Product modification
An overview of possible valve modifications is described in the ordering code.
The user cannot subsequently change the valve type.
6. Target user group
All of the above activities related to this valve, in particular installation and connection to the hydraulic circuit, require specialist technical knowledge
and experience in the field of hydraulics. The minimum level of competence required is CETOP level 2. This level is generally defined as performing a
variety of activities that require an understanding of technical factors and contexts. This may lead to the need for correct interpretation (e.g.
tolerances, operating methods) or the application of various non-repetitive procedures. This may require the performance of checks, simple analysis
and diagnostics, and the ability to react to changes in an operational manner. Teamwork is often necessary.
The connection of solenoid coils to the supply voltage must only be carried out by persons with the appropriate electrical qualifications.
All operations must be carried out with responsibility for correctness and quality, as this is a dangerous area of product use.
It is forbidden for the following persons to carry out any activities related to this product:
› minors (the exception is practical training of pupils under the professional supervision of a teacher)
› without established professional competence
› under the influence of alcohol and/or drugs
› patients whose medical condition could affect safety (reduced attention and ability to react in time, excessive fatigue)
› under the influence of drugs that have a demonstrable effect on attention and timeliness
› allergic to hydraulic working fluids
4.7 Legislation and standards:
ČSN EN ISO 4413 Hydraulics - General rules and safety requirements for hydraulic systems and their components
ČSN ISO 6403 Hydrostatic drives. Valves for flow and pressure control. Test methods
ČSN ISO 4411 Measurement of the characteristics Δp = function (Q) of hydraulic valves
ČSN EN ISO 9001 Quality management systems
ČSN EN ISO 12100 Machine safety / risk analysis
Directive 2006/42/EU on machinery / used chapters: 1.7.4 Instructions for use, Annex III CE marking
ČSN EN 82079-1 Preparation of instruction manuals - Structure, content and presentation / Part 1: General principles and detailed requirements
Ordering code
M
NPT
12
24
3Y13
5
25
Explosion proof
4/3 proportional directional control
valve, Screw-in Cartridge design
Spool connection
Model
High performance
Valve cavity
7/8-14 UNF-2A (C-10-4)
No designation
Seals
NBR
Surface treatment
zinc-coated (ZnNi), ISO 9227 (520 h)
Manual override
standard
No designation
Certifications of valve
ATEX, IECEx,
UKCA, FM APPROVED
Threaded adapter with thread
M20x1.5
½ NPT ANSI
No designation
Temperature class - solenoid nominal input power
Class T4 - 18 W
Nominal flow rate P →A at Δp = 10 bar (1450 PSI)
5 l/min (1.3 GPM)
25 l/min (6.6 GPM)
Nominal supply voltage / limit current (IG)
12 V DC / 1,32 A
24 V DC / 0,64 A
SD2P2X - B4 / H - - B4 - B
Operating instruction_SD2P2X-B4_15324_1en_09/2023
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7.2.1 Electrical connection of coils
CAUTION
Slippery valve surface
The valve contains a small amount of residual oil after a hydraulic function test carried out by the manufacturer.
If the surface of the unpacked valve is contaminated with oil, remove the oil using a cleaning cloth. A slippery
valve surface can cause the valve to fall during handling and cause minor injury or damage to the valve.
7. Operating instructions broken down by product life stage
The valve is packaged in vacuum shrink-wrapped PE foil and protected against moisture and dust as standard. An identification label is affixed to the
packaging.The products should only be stored for the necessary time at a temperature of 0 to +30 °C in a dry place with a relative humidity of up to 65 %.
After extended periods of storage, we recommend checking the product for corrosion damage, replacing seal and flushing the product with clean oil
before connecting it to the hydraulic circuit.
7.1 Transportation and storage of the product
Check that the valve type on the identification plate is correct. Cut the packaging with scissors and carefully remove the valve from the packaging.
Unpack the valve in a clean place and prevent contamination of the valve. The packaging is made of PE and can be easily contaminated with residual
hydraulic oil from the valve. Dispose of the packaging in accordance with applicable environmental regulations. The mounting position of the valve is
arbitrary. However, if vibrations or shocks are applied to the valve during operation, they must not be applied in the direction of the spool axis.
7.2 Instalation of the product
When connecting the coil power cable, proceed as follows:
› Use a “d” certified cable to connect the coils to the power supply. When selecting the cable structure and outer diameter, follow the
manufacturer’s recommendations for the certified cable gland used. (The cable gland is not included with the valve.)
› Use a cable and cable gland with sufficient insulation temperature rating. For a 10 W coil, the insulation temperature class must be 35 °C higher than
the maximum allowable ambient temperature for that temperature class.
› The cable should be sufficiently protected against damage with respect to environmental conditions, e.g. resistant to mechanical damage or
chemical attack.
› The design of the coil casing allows the connection of the power cable from the vertical or horizontal direction depending on which hole in the casing
the thread adapter with external thread M36x1 is screwed into.
› Thread adapter with M20x1.5 female thread or with ½ NPT ANSI tapered female thread can be selected.
› The second hole in the casing is closed with a plug after the wires are mounted to the coil terminal.
› The thread adapter and plug are sealed in the casing with a VQM silicone rubber O-ring.
› The thread adapter and closing plug are protected against loosening after assembly by screwing in the M3x4 grub screws in the radial direction.
WARNING
Sealing ring
During assembly, the ring must not be damaged or the part must not be mounted without the sealing ring.
There is a risk of explosion.
1. Stopping plug
with M36x1 thread and sealing ring
2. Thread adapter
with thread M36x1 and sealing ring
- A. Internal thread M20x1.5
- B. ANSI ½ NPT tapered female thread
3. Grub screws
M3x4
Coil power 18 W
Temperature class Max. ambient temperature Min. temperature insulation class
T4 60 °C (140 °F) 115 °C (221 °F)
Operating instruction_SD2P2X-B4_15324_1en_09/2023
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› The user must protect the electrical circuit of the solenoid with a fuse with a tripping characteristic corresponding to the slow fuse wire
blowing. The fuse tripping current shall be IN≤ 3x IG, where IGis the current flowing through the solenoid coil at the maximum coil
temperature. (For IGvalues, see the coil electrical parameter table.) Conductors and elements shall be used for the fuse circuit that are
rated for a higher electric current than the maximum short-circuit current in the customer‘s equipment circuit.
› If elements of the electrical installation, including the fuse, are also located in a potentially explosive atmosphere, these elements must also have
the appropriate degree of protection.
Ground wire
Coil power supply
When connecting the coil power cable, proceed as follows:
› Using the inbus wrench A/F 10, loosen and unscrew the steel plug on the top surface of the coil housing to gain access to the terminal block inside
the housing. Do not damage the plug seal.
› Disassemble the cable gland into its individual parts. Strip the end of the cable and thread the cable successively through all parts of the gland, the
thread adapter and the horizontal or vertical hole in the coil casing (depending on the direction of cable feed).
› Strip the ends of the wires and plug them into the terminal block (see picture below).
› Screw the thread adapter into the coil casing and tighten it to a torque of 30±5 Nm using a wrench A/F 27.
› Screw the part of the cable gland to be screwed into the thread adapter and tighten to the torque specified by the manufacturer.
› Assemble the cable gland according to the manufacturer’s instructions so that the cable is sufficiently secured against pulling out by external force
and displacement by gases in the event of an explosion in the inner space of the coil casing. The inner space of the coil casing must be sufficiently
sealed.
› Fit a steel plug with seal into the free hole in the coil casing and tighten it to the specified torque of 30±5 Nm using an inbus wrench A/F 10.
Secure the position of the thread adapter and the steel plug against loosening with M3x4 grub screws and tighten them to a torque of 0.4±0.1
Nm using an inbus wrench A/F 1.5 mm.
› After mounting the valve, the surface of the coil must be grounded by connecting the ground wire to the terminal on the top surface of the coil
casing using an M5x10 screw. Tighten the screw to a tightening torque of 2.2±0.2 Nm using an 8 mm wide screwdriver.
Connecting the wires to the terminal block:
› Remove the insulation from the end of the cable so that when the cable is fixed in the cable gland, the insulated part of the cable sufficiently
extends into the inner space of the terminal block.
› Strip the ends of the wires to a length of 5 to 6 mm.
Release the clamp by pressing the lever against the spring in the direction of the arrow and insert a wire with a cross section of 0.5 to 1.5 mm2.
Releasing the lever secures the wire. The right clamp is for the earth wire.
› Make sure that the conductors are sufficiently secured in the clamps and are not in danger of loosening.
Power fuse protection
DANGER
Correct electrical connection of coils
Pay attention to the correct fixing of the wires in the terminal box, the correct fixing and sealing
of the thread adapter, the steel stopping plug and the cable in the cable gland. There is a risk of explosion.
DANGER
Coil surface grounding
If the surface of the coil and thus the entire valve is not grounded, an electrical discharge of static electricity
may occur.
Operating instruction_SD2P2X-B4_15324_1en_09/2023
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Electrical wiring diagram of coils
Coils with DC power supply and surge protection by bipolar diode
UZ= 36 V for UN= 12 V DC and 24 V DC
12
Table of coil electrical parameters
Coil type with DC
electric power supply
Nominal supply
voltage
Winding resistance
at t = 20 °C
Nominal current Limit current Bipolar diode Nominal input
power
UN[V DC] R20 [Ω] IN[A] IG[A] UZ[V] PN[W]
EX18-002-D-1-A-012-0 IDXa 12 7.6 1.58 1.32 36 18.8
EX18-002-D-1-A-024-0 IDXi 24 31.2 0.77 0.64 36 17.8
Coil description note: Nominal input power of coil EX18-001 is 10 W, nominal input power of coil EX18-002 is 18 W.
7.2.2 Connecting the valve to the hydraulic circuit
The valve is designed to be screwed into shaped cavity in the block with a 7/8-14 UNF connection thread.
The shape and dimensions of the cavity conform to the technical specification ISO/TR 17209.
Cavity B4
min. for side
channel
space for the
radial bore
AXIAl BORE
Operating instruction_SD2P2X-B4_15324_1en_09/2023
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Note:
Associated tools for production of cavities can be ordered from the valve manufacturer (SMT catalogue 0019).
Drawings of the cavities are also available in the same catalogue.
Unscrew the coil nut (5) by turning it counterclockwise. Remove the coil seal ring (4) and coil (3) from the actuating system.
The valve (1) is mounted in the cavity without the coil to prevent the valve from tightening in the cavity. Before inserting the valve into the cavity
in the block, ensure that undamaged seals are fitted to the valve housing. Also verify that the valve and cavity surfaces are not damaged or contami-
nated. Before installing the valve, we recommend lightly lubricating the housing seals with grease or working fluid. Using slight pressure, carefully
insert the valve into the cavity and turn it clockwise to screw it in by hand. Then tighten the valve to 35+5 Nm using a torque wrench A/F 27.
Place the coil (3), coil seal (4) and fixing nut (5) back on the valve actuating system. Orient the coil by turning it on the actuating system so that the
cable outlet points in the required direction and secure the position of the coil by tightening the nut clockwise with a torque wrench
A/F 32 to 5±1 Nm.
Dimensions of SD2P2X-B4 valve, dimensions in mm (in)
27
5±1 Nm
(3.7±0.7 lbf.ft)
32
5
43
1
2
35+5 Nm
(25.8+3.7 lbf.ft)
144,5 (5.69)
16 (0.63)58 (2.28)
84 (3.31)
27
7/8-14 UNF-2A
17,42 (0.69)
60,45 (2.38)
15,82 (0.62)
19 (0.75)
1
23 4
HEX 32
HEX 27
95 (3.74)
93 (3.66)
66,5 (2.61)
23 (0.91)
46 (1.81)
10
M36x1
25(0.98)
15,5 (0.61)
M20x1,5
1/2-14 NPT
30±5 Nm
(22.1±3.7 lbf.ft)
5±1 Nm
(3.7±0.7 lbf.ft)
35+5 Nm
(25.8+3.7 lbf.ft)
Thread adapter is not mounted
2,2±0,2 Nm
(1.6±0.2 lbf.ft)
30±5 Nm
(22.1±3.7 lbf.ft)
Ground screw
M5x10
Stopping plug interchangeable
with the thread adapter
Operating instruction_SD2P2X-B4_15324_1en_09/2023
Page 20 www.argo-hytos.com
CAUTION
Correct installation of the valve
A missing or damaged ring after the thread will cause a leak of working fluid. Missing or damaged rings on the
valve body will cause internal volume loss and unreliable valve operation.
The solenoid windings heat up during operation. Effective external cooling must be provided to ensure that the maximum winding temperature is not
exceeded, by not exceeding the maximum fluid and ambient temperature and by maintaining minimum volume of the connection block. A valve
body volume of (225 cm3) is sufficient for one manifold. If several valves that can be switched simultaneously are connected on the connection plate,
a distance of at least 55 mm must be maintained between the bodies of adjacent valves (see fig.).
85 (3.35)
55 (2.17) 60 (2.36)55 (2.17)
7.3 Commissioning
Before commissioning the hydraulic ciruit, check that the valve is correctly mounted inthe block cavity and that electrical supply cables are correctly
connected. The valve is not to be adjusted. Test operation should be conducted without the pressence of an explosive atmosphere. After the
hydraulic circuit has been commissioned, check the valve for leaks. Simply verify the directional control valve function, repositioning the spool by
alternately switching the solenoids and monitoring the movement of the appliance or the amount of pressure in the appliance branches.
7.4 Normal operation
During normal operation, the directional control valve spool is adjusted by the solenoids. Normal operation of the system does not require any
manipulation of the valve.
CAUTION
Coil cooling
Coil cooling takes into account the cooling surface of the hydraulic part of the valve.
Do not power separately disassembled coils. Excessive winding heat, insulation damage and short circuiting
between coils may occur. For the same reason, the surface of the coils must not be covered, exposed to direct
heat sources or sunlight. The valve must not be closed in a tight space without ensuring air circulation.
DO NOT exceed the MAXIMUM PARAMETERS, shown in table 4.4.
OBSERVE THE OPERATIONAL RESTRICTIONS AND AVOID THE RISKS , referred to in paragraph 3.
USE PROTECTIVE EQUIPMENT
When working with hydraulic fluid, it is recommended to wear safety goggles, protective rubber gloves and sturdy shoes with non-slip soles.
7.5 Extraordinary and emergency situations
In the event of a power failure to the solenoids or a coil failure, the centering spring will return the valve spool to its base position.
Based on the results of the risk analysis, the following potential faults have been identified:
› External valve leakage due to seal damage associated with a working fluid leak.
› Loss of valve function, resulting in loss of control of the appliance.
› Mechanical damage to the electrical part of the valve including the cable
Table of contents
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