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Madas Technical Manual
- 1|1.3J - REV. 0 of 1
st
Aug 2019
JW...-1
2.0 - TECHNICAL DATA
• Use
: non-aggressive gases of the three families (dry gases)
• Room temperature (TS)
: -20 ÷ +60 °C
• Power voltages (see table 3)
: 12Vdc - 24 Vdc - 24 V/50 Hz - 110 V/50-60 Hz - 230 V/50-60 Hz*
• Power supply tolerance
: -15% ... +10%
• Electric wiring
: electric cable l=3 metres with wire terminals
• No. of cycles/hour (fast opening valve) :
~
1800 (ON time 1s - OFF time 1s)
• No. of cycles/hour (slow opening valve)** :
~
210 (ON time 10s - OFF time 7s)
• Absorbed power
: see table 3
• Maximum operating pressure
: versions with fast opening: 0.5 bar - 1 bar (see product label)
versions with slow opening: 0.5 bar
• Opening time (fast versions)
: <1 s
• Opening time adjustment (slow versions) : between 0.5 and 40 s ± 20% (Ta= 25 °C - V=Vn)
• Protection rating
: IP65
• Coil protection mode
: II 3G Ex mc ec nC IIA T4 Gc X - II 3D Ex mc tc IIIC T135°C Dc X
• Class
: A
• Mechanical resistance
: Group 2
• Rp threaded fittings
: (DN 15 - DN 20 - DN 25) according to EN 10226
• NPT threaded fittings
: request feasibility
• In compliance with
: Regulation (EU) 2016/426 (Appliances burning gaseous fuels)
EN 60079-0-7-14-15-18-31 - ATEX Directive 2014/34/EU
PED Directive 2014/68/EU (versions with P.max = 1 bar)
EMCDirective 2014/30/EU - LVD Directive 2014/35/EU
RoHS II Directive 2011/65/EU
* Only single-phase, the device does not work if powered with three-phase voltage.
** For cycles / hours with ON/OFF times different from those indicated, contact our technical office
2.1 - MODEL IDENTIFICATION
JW-1 :
Fast opening
P.max = 0.5 bar or 1 bar ATEX 3G - 3D
JWF-1 :
Fast o flow adjustment
P.max = 0.5 bar or 1 bar ATEX 3G - 3D
JWQ-1 :
Adjustable slow o adjustable fast stroke
P.max = 0.5 bar
ATEX 3G - 3D
JWR-1 :
Adjustable slow o flow adjustment
P.max = 0.5 bar
ATEX 3G - 3D
JWS-1 :
Adjustable slow o adjustable fast flow adjustment P.max = 0.5 bar
ATEX 3G - 3D
JWT-1 :
Adjustable slow opening
P.max = 0.5 bar
ATEX 3G - 3D
2.2 - SIL LEVEL
The SIL level of the stand-alone solenoid valve is SIL 2; when two solenoids are installed in series and the relative seal test
(Valve Proving System), certified according to EN 1643, the achieved level is SIL 3, as set forth in EN 676:2008. The solenoid
valve has PL d level. For further data refer to the SIL LEVEL table (table 2).
3.0 - COMMISSIONING THE DEVICE
3.1 - OPERATIONS PRIOR TO INSTALLATION
All installation operations must be carried out in the absence of an explosive atmosphere.
• It is necessary to close the gas upstream of the valve prior to installation;
• Make sure that the line pressure
DOES NOT EXCEED
the maximum pressure declared on the product label;
• Any protective caps (if any) must be removed prior to installation;
• Valve pipes and insides must be clear of any foreign bodies;
• Make sure that the pipe thread is not too long, to prevent damaging the body of the device when screwing it on;
• In accordance with EN 161 a suitable filter must be installed upstream of a gas closing safety device;
