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OPERATING PRINCIPLE
PERFORMANCES
(obtained with mineral oil with viscosity of 36 cSt at 50°C and electronic control card)
Maximum operating pressure
Minimum flow
Nominal flow
Maximum flow
Step response
Hysteresis
Repeatability
Electrical characteristic
Operating temperatures (ambient and fluid)
Fluid viscosity range
Fluid contamination degree
Recommended viscosity
Mass
81 316/121 ED
- P port
bar
- T port
l/min
% of p nom
% of p nom
cSt
cSt
kg
PROPORTIONAL PRESSURE
ATEX, IECEX, INMETRO, PESO
PDE3K*
ISO 4401- 03
PRE3K*
ISO 4401- 03
PRE10K*
ISO 6264 - 06
PRE25K*
ISO 6264 - 08
PRE32K*
ISO 6264 -10
— PDE3K* and PRE*K* are explosion-proof pressure relief valves
with proportional control.
— They are compliant with ATEX, IECEx, INMETRO or PESO
requirements and are suitable for use in potentially explosive
atmospheres, for surface plants or mines.
— A low temperature version (up to - 40 °C) is also available.
— The valves can be controlled directly by a current power supply or
by means of an electronic control unit, to exploit valve
performance to the full (see par. 21).
— Upon request, these valves can be supplied with a finishing
surface treatment (zinc-nickel) suitable to ensure a salt spray
resistance up to 600 hours.
— Details for classification, operating temperatures and
electrical characteristics are in the technical data sheet
02 500 'Explosion proof classification'.
PDE3K*
PRE3K*
350
350
2
2
-
2
1
10
2
40
see data sheet 02 500
According to ISO 4406:1999 class 18/16/13
1,8
3,8
81 316/121 ED
P*E*K*
EXPLOSION-PROOF
RELIEF VALVES,
PILOT OPERATED
PRE10K*
PRE25K*
350
2
-
-
-
-
200
400
see par. 11
< 5%
< ±1,5%
see par. 5
10 ÷ 400
25
5,3
6,1
PRE32K*
-
-
500
8,3
1/16
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Table of Contents
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Related Manuals for Duplomatic P E K Series
Summary of Contents for Duplomatic P E K Series
- Page 1 81 316/121 ED P*E*K* EXPLOSION-PROOF PROPORTIONAL PRESSURE RELIEF VALVES, PILOT OPERATED ATEX, IECEX, INMETRO, PESO PDE3K* ISO 4401- 03 PRE3K* ISO 4401- 03 PRE10K* ISO 6264 - 06 PRE25K* ISO 6264 - 08 PRE32K* ISO 6264 -10 OPERATING PRINCIPLE — PDE3K* and PRE*K* are explosion-proof pressure relief valves with proportional control.
- Page 2 P*E*K* SERIES 10 1 - IDENTIFICATION CODE OF DIRECT OPERATED PROPORTIONAL VALVE P D E 3 / 10 Pressure control valve Option: surface treatment not standard. Direct operated Omit if not required (see NOTE) Electrical proportional control Option: /T5 version in T5 temperature Size ISO 4401-03 class.
- Page 3 P*E*K* SERIES 10 2 - HYDRAULIC SYMBOL 3 - CHARACTERISTIC CURVES FOR DIRECT OPERATED PROPORTIONAL VALVE (obtained with mineral oil with viscosity of 36 cSt at 50°C and electronic control card) Typical control curves according to the current supplied to the solenoid for available pressure control ranges measured with input flow rate Q = 1 l/min.
-
Page 4: Electrical Characteristics
P*E*K* SERIES 10 4 - MAX PRESSURE VALUES FOR DIRECT OPERATED PROPORTIONAL VALVE This valve incorporates a mechanical limit of the maximum pressure, that operates independently of the applied current. This kind of design ensures the pressure cannot rise over even if the solenoid current exceeds the maximum current (I > I Values obtained with oil viscosity of 36 cSt at 50°C, Q = 1 l/min PDE3K*-025 PDE3K*-070... - Page 5 P*E*K* SERIES 10 Cables for wiring must be non-armoured cables, with external covering sheath and must be suitable for use in environments with temperatures from - 20 °C to +110 °C (for valves either with N or V seals) or from - 40 °C to +110 °C (for valves with NL seals). Cable glands (which must be ordered separately, see par.
- Page 6 P*E*K* SERIES 10 6 - PDE3K* OVERALL AND MOUNTING DIMENSIONS dimensions in mm PDE3K* -*K9T* PDE3K* -*K9S* Side port type S01, S04 60.5 Mounting surface with sealing rings: S02, S03 N. 4 OR type 2037 (9.25 x 1.78) - 90 shore Explosion-proof coil Minimum clear space required NOTE: at the first start up, or after a long period of no use, it is...
- Page 7 P*E*K* SERIES 10 7 - IDENTIFICATION CODE OF PILOT OPERATED PROPORTIONAL VALVES P R E / 20 Option: Pilot operated pressure surface treatment relief valve not standard. Omit if not Electric proportional control required (see NOTE) Size: 3 = ISO 4401-03 Option: /T5 10 = ISO 6264-06 version in T5...
- Page 8 P*E*K* SERIES 10 9 - CHARACTERISTIC CURVES OF PILOT OPERATED PROPORTIONAL VALVES (obtained with mineral oil with viscosity of 36 cSt at 50°C and electronic control card) PRESSURE CONTROL p = f (I) 9.1 - PRE3K* MINIMUM CONTROLLED PRESSURE p min = f (Q) PRESSURE VARIATION p max = f (Q) Q = 10 lt/min factory setting...
-
Page 9: Step Response
P*E*K* SERIES 10 10 - MAX PRESSURE VALUES FOR PILOT OPERATED VALVES These valves incorporate a mechanical limit of the maximum pressure, that operates independently of the applied current. This kind of design ensures the pressure cannot rise over, even if the solenoid current exceeds the maximum current (I > I Values obtained with oil viscosity of 36 cSt at 50°C, Q = 10 l/min PRE3-025 PRE3-070... - Page 10 P*E*K* SERIES 10 12 - PRE3K* WITH UPPER CONNECTION - OVERALL AND MOUNTING DIMENSIONS dimensions in mm PRE3K*-*/20*-*K9T* Mounting surface with sealing rings: 4 OR type 2037 (9.25x1.78) - 90 shore Explosion-proof coil NOTE 1: at the first start up, or after a long period of no use, it Minimum clear space required is necessary to vent the air through the breather (5) placed at the end of the solenoid tube.
- Page 11 P*E*K* SERIES 10 13 - PRE10K* WITH UPPER CONNECTION - OVERALL AND MOUNTING DIMENSIONS dimensions in mm PRE10K*-*/20*-*K9T* Mounting surface with sealing rings: N. 2 OR type 123 (17.86 x 2.62) - 90 shore N. 1 OR type 109 (9.13 x 2.62) - 90 shore Explosion-proof coil Minimum clear space required NOTE 1: at the first start up, or after a long period of no...
- Page 12 P*E*K* SERIES 10 14 - PRE25K* WITH UPPER CONNECTION - OVERALL AND MOUNTING DIMENSIONS dimensions in mm PRE25K*-*/20*-*K9T* Mounting surface with sealing rings: N. 2 OR type 3118 (29.82 x 2.62) - 90 shore N. 1 OR type 109 (9.13 x 2.62) - 90 shore Explosion-proof coil NOTE 1: at the first start up, or after a long period of no Minimum clear space required...
- Page 13 P*E*K* SERIES 10 15 - PRE32K* WITH UPPER CONNECTION - OVERALL AND MOUNTING DIMENSIONS dimensions in mm PRE32K*-*/20*-*K9T* Mounting surface with sealing rings: N. 2 OR type 4137 (34.52 x 3.53) - 90 shore N. 1 OR type 109 (9.13 x 2.62) - 90 shore Explosion-proof coil Minimum clear space required NOTE 1: at the first start up, or after a long period of no use, it...
- Page 14 P*E*K* SERIES 10 16 - PRE*K* WITH SIDE CONNECTION - OVERALL AND MOUNTING DIMENSIONS dimensions in mm PRE3K*-*/20*-*K9S* PRE10K*-*/20*-*K9S* Side port type Side port type S01, S04 100.5 S01, S04 162.5 S02, S03 S02, S03 PRE25K*-*/20*-*K9S* Side port type S01, S04 172.5 S02, S03 PRE32K*-*/20*-*K9S*...
-
Page 15: Mounting Surfaces
P*E*K* SERIES 10 17 - MOUNTING SURFACES PDE3K* and PRE3K* PRE10K* ISO 4401-03-02-0-05 ISO 6264-06-09-*-97 (CETOP 4.2-4-03-350) (CETOP 4.4.2-2-R06-350) 53.8 47.5 22.1 26.9 53.8 14.7 (max) Ø Ø Ø PRE25K* PRE32K* 66.7 ISO 6264-08-13-*-97 ISO 6264-10-17-*-97 55.6 88.9 (CETOP 4.4.2-2-R08-350) (CETOP 4.4.2-2-R10-350) 33.4 76.2... -
Page 16: Cable Glands
SERIES 10 20 - CABLE GLANDS Cable glands must be ordered separately; Duplomatic offers some types of cable glands with the following features: • version for non-armoured cable, external seal on the cable (suitable for Ø 8 ÷10 mm cables); • ATEX II 2GD, I M2; IECEx Gb, Db, Mb;... - Page 17 42 215 DS(P)E*K* 83 510 GENERAL INFO This informative technical datasheet displays information about classification and marking of Duplomatic explosion-proof valves range. Duplomatic MS offers valves with the following certifications: ATEX II 2G II 2D I M2 IECEx INMETRO PESO Instructions for use and maintenance can be found in the related manuals, always supplied toghether with valves.
- Page 18 1 - ATEX CLASSIFICATION AND TEMPERATURES Duplomatic certificates the combination valve-coil for the valves suitable for application and installation in potentially explosive atmospheres, according to ATEX directive; the supply always includes the declaration of conformity to the directive and the operating and maintenance manual, that contains all the information needed for a correct use of the valve in potentially explosive environments.
- Page 19 DZCE*K* SERIES 11 1.3 - ATEX classification of the coils The coil of the explosion-proof valves is ATEX certified itself and, as such, is identified with its own tag, carries the relative ATEX marking. The mechanical construction of the coil housing is made in order to ensure its resistance to possible internal explosion and to avoid any explosion propagation to the outside environment, matching an “Ex db”...
- Page 20 The IECEx certification requires the classification of the electrical equipment only. Duplomatic supplies valves with IECEx certified coils, suitable for application and installation in potentially explosive atmospheres. The mechanical construction of the coil housing is made in order to ensure its resistance to possible internal explosion and to avoid any explosion propagation to the outside environment, matching an “Ex db”...
- Page 21 The INMETRO certification requires the classification of the electrical equipment only. Duplomatic supplies valves with INMETRO certified coils, suitable for application and installation in potentially explosive atmospheres. The mechanical construction of the coil housing is made in order to ensure its resistance to possible internal explosion and to avoid any explosion propagation to the outside environment, matching an “Ex db”...
- Page 22 The PESO certification requires the classification of the electrical equipment only. Duplomatic supplies valves with PESO certified coils, suitable for application and installation in potentially explosive atmospheres. The mechanical construction of the coil housing is made in order to ensure its resistance to possible internal explosion and to avoid any explosion propagation to the outside environment, matching an “Ex db”...
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