Gas safety solenoid shut-off valve series VSB and VSA, ap-
proved according to the norm EN 161 with product iden-
tication and manufactured according to regulation EU
2016/426, are suitable for the automatic control of gases
belonging to the rst, second and third family.
On request there are versions for biogas and air. These val-
ves, normally closed for continuous and cyclic operation,
open by powering the coil and close quickly when there is
no tension.
Safety Shut-off Valves
series VSB and VSA
• Class A, Group 2 according to EN161
• Electromagnetic Compatibility – Directive 2004/108/CE
• Low voltage – Directive 2006/95/CE
• SIL 2 for single solenoid valves, if 2 valves are installed in series with tightness control, they reach SIL 3
• Quick and slow opening and quick closing
• Quiet operation
• Poliammidic resin encapsulated coils and metallic frame for anged bodies
• Pressure test points at inlet by both sides
• Accessories on request: by-pass, limit switch, manual max. ow adjustment
Valve body Brass OT-58 and die-cast aluminium
Pipe connections for valves with brass body Rp 3/8, Rp 1/2, Rp 3/4 according to EN 10226
Pipe connections for valves with aluminium body Rp1/2÷2accordingtoEN10226
Pipe anged connections for valves with aluminium body DN65÷200 PN16accordingtoISO7005
Inlet pressure 200 mbar, 360 mbar and 500 mbar
Opening/closing time on quick version < 1 second
Standard supply voltage 230V ac, 110V ac, 24V and 12V ac and dc
Frequency 50÷60 Hz, 50 Hz per 12V and 24V ac
Enclosure IP 65 - IEC 529
Supply voltage tolerance -15% - +10%
Duty cycle Continuous
Ambient temperature -20 / +60 °C
FEATURES
TECHNICAL FEATURES
