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Name:Solenoid valve for air----VRA/VLA/VTA



The VRA/VLA/VTA types are normally closed solenoid valves for cold combustion air regulation (open when energized). This type of device is suitable for high/low control of combustion air in industrial gas burners.

  • The valves are made of aluminum alloy die-cast, with a wide range for inlet/outlet connections from DN 20 up to DN 80.
  • Pipe connections meet group 2, according to EN161 requirements.
  • Suitable for use with cold combustion air (not for safety purposes).
  • Provided with two flow adjustments: minimum and maximum flow rate, for high/low operation.
  • Suitable for heavy duty cycle operation and for continuous service (100% ED).
  • The whole range can be provided in Ex-proof execution, for use in Zones 2 and 22, according to 94/9/EC Directive (ATEX).
  • The valve is supplied without an internal filter, because in many applications the air is very dirty and it should clog the filter in short time. It is provided with a special dust cover able to protect mechanical moving parts.
  • Provided with G1/4 pressure gauge on two sides in the inlet chamber, to connect manometers, pressure switches or other equipments. Flanged models are provided with gauges also in the
  • outlet chamber.
  • The coils are provided with terminal box or with ISO 4400 plug (optional). Both systems are provided with suitable cable gland to avoid water and dirty contamination.
  • All components are designed to withstand any mechanical, chemical and thermal condition occurring during typical service. Effective impregnation and surface treatments have been used
  • to improve mechanical sturdiness, sealing and resistance to corrosion of the components.
  • Valves are 100% tested by computerized testing machineries and are fully warranted.

Beijing Suntouch Thermprocess Equipment Co., Ltd
Office address: Hongda South Road, Yizhuang Economic Development Area, Beijing, China.
Service hotline:Service hotline:0086-10-63580920 63580029

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