Three-position solenoid safety gas valves
Three-position solenoid safety gas valve is a device designed for remote control of flow of non-aggressive gaseous mediums in three different modes:
- maximum flow rate mode;
- average (intermediate) flow rate mode;
- off mode.
Three-position solenoid safety gas valves are applied at automated systems of gradual gas flow control.
Such valves combine shut-off (cut-off) unit with manual gas flow regulator and unit of average (intermediate) gas flow in one housing. This design ensures gradual gas flow control as well as manual adjustment of average gas flow rate from 10 to 60 %.
Customized valves can be manufactured with two flow regulators that allow to adjust gas flow rate from 10 to 100 %.
OPERATING PRESSURE:
- from 0 to 3 bar (up to 0,3 mPa).
DIAMETER NOMINAL:
- DN 20÷50.
HOUSING MATERIAL:
ALUMINUM
STEEL
Valves in aluminum housings are applied at thermal power facilities (boiler houses, furnace rooms etc.), and also by manufacturers of gas equipment (modular boiler houses, boilers, burners, furnaces, flare facility etc). Low weight, cost and small dimensions make valves in aluminum housings practical in application.
Valves in steel housing are applied primarily at large power plants (heat and thermal power plants, condensation power plants etc). Steel housings are highly resistant to static and dynamic loads due to requirements of equipment application at large power plants.
CLIMATIC VERSION:
- -30…+60 °С – installation in irregularly heated space;
- -45…+60 °С – installation under cover;
- -60…+60 °С – installation under cover;
- -60…+60 °С – outdoor installation (only for explosion proof version);
OPERATING ENVIRONMENT TEMPERATURE:
- -60…+70 °С (standard version);
- -45…+120 °С (customized version).
ADDITIONAL FUNCTIONS AND DEVICES:
- all gas valves can be equipped with external read-off position indicators (opened/closed);
- for additional devices such as manometers, pressure switches, pulse tubes etc. connection valves are equipped with plugged threaded connections G1/4”.
HOUSING VERSIONS:
- flange;
- coupling.
EXPLOSION PROOF VERSION:
- general purpose industrial version;
- explosion proof version.
General purpose industrial version of valves is applied at all gas facilities, where there are no special requirements for ensuring explosion safety of electrical equipment.
Explosion proof version of valves is applied at the facilities and premises with special protective measures requirements upon designing, manufacturing and operating of electrical plants.
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If you need help selecting necessary equipment, please visit our web-site www.termobrest.ru or contact our specialists by e-mail info@termobrest.ru or by phone:
+375 (162) 53-64-13 (technical consultation line);
+375 (162) 53-64-76 (sales and logistics department).
SOLENOID SAFETY GAS VALVES BLOCK UNIT
Solenoid safety gas valves block unit is a set of solenoid safety gas valves and other gas fittings unit assembled into a single gas train (gas filter, pressure regulator-stabilizer, motorized gas valve, safety relief gas valve, safety shut-off gas valve, pressure switch, etc.).
FIELD OF APPLICATION:
Solenoid safety gas valves block units are designed for monitoring and regulation of the gas environment (medium) supply in gas burners of hot water and steam boilers, melting and drying furnaces, gas heaters and other gas consuming devices.
DIAMETER NOMINAL:
- DN 15÷300.
HOUSING MATERIAL:
- steel: DN 15÷300;
- iron cast: DN-150, DN-200;
- aluminum: DN 15÷200.
COMBINED GAS VALVES BLOCK UNIT CAN BE EQUIPPED WITH ADDITIONAL DEVICES:
- read-off position indicators of the valve shutter, included in the block unit;
- pressure switches;
- leak-tightness control block unit (provides the monitoring of the valves leak-tightness included in the block unit before igniting the burner);
- different types of actuators.
VERSION:
- general industrial usage;
- explosion proof usage.
CLIMATIC VERSION:
- -30…+60 °С – installation in irregularly heated rooms;
- -45…+60 °С – installation under roof;
- -60…+60 °С – installation under roof;
- -60…+60 °С – outdoor installation.
AMBIENT OPERATING TEMPERATURE:
All solenoid safety gas valves block units manufactured by TERMOBREST are supplied in a version with ambient operating temperature from -60 up to +70 ° C.
Upon customer’s individual request, solenoid safety gas valves block units can be manufactured with ambient operating temperature from -45 up to +120 ° C.
Upon customer’s individual request, the valves block units with the read-off position indicators can be manufactured with ambient operating temperature from -45 up to +90 ° C (the upper range is limited by the permissible operating limit (range) of the read-off position indicator).
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If you need help selecting necessary equipment, please visit our web-site www.termobrest.ru or contact our specialists by e-mail info@termobrest.ru or by phone:
+375 (162) 53-64-13 (technical consultation line);
+375 (162) 53-64-76 (sales and logistics department).