SAFETY SHUT-OFF GAS VALVES
Safety shut-off gas valve is a device designed for automatic cutoff of the gas supply in case of pressure boost above requested actuation value.
FIELD OF APPLICATION and OPERATING PRINCIPLE:
Safety shut-off valve is usually installed in gas distributing plants and units in front of the pressure regulator-stabilizer and provides control of the output pressure received behind the regulator. The signal about the deviation of the gas pressure from the set value is sent to the safety shut-off valve through the impulse tube connected to the output pressure gas pipeline. The value of the monitored pressure is adjusted by regulating the spring in the safety shut-off valve. When the set value of pressure behind the regulator is exceeded, the safety shut-off valve closes and shuts off the gas supply in the pipeline. The valve can only be opened manually after eliminating the cause of gas pressure excess above the controlled one.
MAXIMUM INPUT PRESSURE:
- up to 6 bar.
ADJUSTMENT RANGE OF CONTROLLED PRESSURE:
- 60-230 mbar;
- 200-440 mbar;
- 420-700 mbar.
Upon individual request: manufacture with different adjustment range.
DIAMETER NOMINAL and HOUSING VERSION:
Coupling DN 15÷50
Flange DN 15÷200
HOUSING MATERIAL:
- aluminum;
- steel.
CLIMATIC VERSION:
- -30…+60 °С;
- -40…+60 °С.
AMBIENT TEMPERATURE:
- from -30 up to +70 °С.
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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).
LEAK-TIGHTNESS CONTROL UNITS
Leak-tightness control unit is a device designed for automatic checking of the gas valves block units before ignition of the burner and ensures a safe start-up of the boiler.
It is used to control the leak-tightness of the gas train (gas valves block units) of industrial boiler burners and similar gas-burning devices.
HOUSING TYPE:
(fig. 1)
(fig. 2)
Figure 1 – housing version with IP41 protection degree for installation in a cabinet with mounting on a din-rail (СВР-1 series);
Figure 2 – version with IP54 protection degree with the possibility of outdoor installation under roof (СВР-2 series).
FUNCTIONALITY:
- Possibility of time setting for testing the valves in the process of monitoring the leak-tightness of the gas block unit;
- Interacts with various types of boiler control automation;
- Information about the leak-tightness of the solenoid valves is displayed on the LED panel;
- Provides control in manual or automatic modes;
- Can be completed with one or two pressure switches (mechanical or electronic types).
MAIN TECHNICAL CHARACTERISTICS:
| Power source | 220 V, 50 Hz; 24 V DC |
| Maximum current through the contact relays | 5 А |
| Maximum switched voltage by contacts | 250 V |
| Testing time range | 10…990 sec (кратно 10) |
| Interface with remote computer | RS-485 |
| Power consumption | no more than 6 VA |
| Average service life | 9 years |
| Climatic version | -30…60 °С |
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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).