Boss 355AA, Manual, Page: 4 / 20

4
EN
2.0 - TECHNICAL DATA
• Use : non-aggressive gases of the three families (dry gases)
• Ambient temperature (TS) : -20 ÷ +60 °C
• Supply voltages (see table 2) : 24 V/50 Hz - 110 V/50-60 Hz - 230 V/50-60 Hz*
• Supply voltage tolerance : -15% ... +10%
• Electric wiring : cable gland PG 11
• No. cycles/hour** :
DN 32 - DN 40 - DN 50 - DN 65 - DN 80 - DN 100
~
195 (ON time 5s - OFF time 13.5s)
DN 125 - DN 150
~
90 (ON time 10s - OFF time 30s)
• Absorbed power : see table 2
• Maximum operating pressure : 360 mbar
• Opening time : <1 s
• Closing time : <1 s
• Protection rating : IP65
• Class : A
• Mechanical resistance : Group 2
• Rp Threaded connections : (DN 32 - DN 40 - DN 50) according to EN 10226
• Flanged connections to be coupled with PN 16 flanges : (DN 65 - DN 80 - DN 100 - DN 125 - DN 150) ISO 7005 / EN 1092-1
• NPT threaded or ANSI 150 flanged connections : on request
• Filter element
: 1 mm wire mesh on connections DN 32 - DN 40 - DN 50
filtering 50 µ m on DN 65 - DN 80 - DN 100
filtering 10 µ m on DN 125 - DN 150
• In compliance with : Regulation (EU) 2016/426 (Appliances burning gaseous fuels)
Directive EMC 2014/30/EU - Directive LVD 2014/35/EU
Directive RoHS II 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
See Table 2 on page 18.
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 leak 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 3).