1. C - series
2. Connection size, inches
3. Main valve’s source position:
H - normally closed (closed when de-energized)
4. Hyphen
5. Number of valves in the block unit
6. Hyphen
7, 8. Serial number of the block unit
9. K - Main shut-off valve is equipped with a manual gas flow regulator
10. P - The valves are equipped with position indicator (opened/closed position)
11. D - The block is equipped with pressure switches
12. E - Explosion proof version of all valves
13. Climatic version, power source
According to the type of connection to the pipeline the units in steel housing are made:
coupling — DN 40, DN 50;
flanged — up DN 25 to DN 300.
The flanges of valves are manufactured in accordance with GOST 12815, version 1, 6 bar, max.
Climatic version:
-60...+60 °C – only explosion proof version;
-60...+60 °C;
-45...+60 °C;
-30...+40 °C.
Standard climatic version of the block units in steel housing with valves equipped with electric power drive - -30...+60 °C. The block units with electric power drive can be manufactured in -45...+60 °C climatic version upon customer’s individual order.
The block units with electric power drive provide both proportional and positioning action regulation modes.
Application of the block units allows reducing significantly overall dimensions and weight of the gas burner fittings unit, quantity of weald seams, makes the mounting and setup process considerably easier and ensures safety and easiness of handling and servicing.
General technical characteristics of the block units
Parameter Name |
Value |
Operation ambient |
Hydro carbonated gases, gaseous phases of liquefied gases, non aggressive gases |
Opening/closing time, s, max |
1 |
Switching frequency, 1/h, max |
300 |
Service term/ switching, max |
500 000 |
Tightness class |
А |
Degree of protection: - general industrial usage; - explosion proof |
IP65 IP67 |
Power source |
220, 110, 24 В; 50, 60 Гц 220, 110, 24 В |
Rated power per coil, W |
25...90 |
Average service life, year, max |
9 |
At order step it is necessary to specify identification code of the block unit, scheme/ circuit of the block (models of the valves, making a part of the block unit), operating pressure, climatic version, power source. For the block units with electrical power drive applied, the following information should be additionally specified: - for proportional regulation mode - letters “PR”, in brackets: type of the transmitter applied (2000 Ohm, 100 Ohm or 4...20 mÀ) or control signal DC (0...10 V); - for positioning regulation mode - letters “POS”
Schematic markings