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Main Features and Applications
The QB series mining explosion-proof valve electric device is specially designed and manufactured for the use conditions in coal mines. Suitable for valves with 90 degree rotation of valve plates, such as butterfly valves, dampers, etc. After being matched with the KXBC mining explosion-proof valve electric device control box, it can be connected with the DCS system to achieve automation control.
Design and Manufacturing Standards for QB Series Mining Explosion proof Valve Electric Device
| Q/3204CN001-2011 | Technical Conditions for Mine Flameproof Valve Electric Device |
| GB3836.1-2010 | Electrical Equipment for Explosive Atmospheres Part 1: General Requirements |
| GB3836.2-2010 | Electrical Equipment for Explosive Atmospheres Part 2: Flameproof Type "D" |
Explosion proof type: mining explosion-proof type, explosion-proof mark is Exd I Mb.
Outline and Dimensions Table
| Model | H | B1 | B2 | L1 | L2 | ΦD |
| QB10-QB40 | 265 | 315 | 100 | 310 | 220 | 200 |
| QB60-QB120 | 380 | 355 | 145 | 340 | 230 | 375 |
| QB200-QB500 | 350 | 385 | 180 | 455 | 260 | 510 |
QB/QBY Model Specifications and Main Performance Parameters
| Model specifications | Nominal torque (N ·m) |
Maximum stem diameter (mm) |
Manual speed ratio | Output speed (r/min) |
Switch travel time (S) |
Motor power (kw) |
Motor current (A) |
Reference weight (Kg) |
|
| 660V | 380V | ||||||||
| QB/QBY10 | 100 | 28 | 88 | 1 | 15 | 0.18 | 0.55 | 0.9 | 47 |
| QB/QBY20 | 200 | 28 | 88 | 1 | 15 | 0.18 | 0.55 | 0.9 | 47 |
| QB/QBY30 | 300 | 28 | 88 | 1 | 15 | 0.18 | 0.55 | 0.9 | 47 |
| QB/QBY40 | 400 | 28 | 88 | 1 | 15 | 0.18 | 0.55 | 0.9 | 47 |
| QB/QBY60 | 600 | 42 | 74 | 1 | 15 | 0.18 | 0.55 | 0.9 | 74 |
| QB/QBY90 | 900 | 42 | 74 | 1 | 15 | 0.25 | 0.75 | 1.3 | 75 |
| QB/QBY120 | 1200 | 42 | 74 | 1 | 15 | 0.37 | 0.92 | 1.6 | 75 |
| QB200 | 2000 | 60 | 67 | 0.5 | 30 | 0.37 | 0.92 | 1.6 | 102 |
| QB300 | 3000 | 60 | 67 | 0.5 | 30 | 0.55 | 1.4 | 2.4 | 104 |
| QB500 | 5000 | 60 | 67 | 0.5 | 30 | 0.75 | 1.8 | 3.0 | 107 |
Note: Other speeds can be provided to meet user needs.
Structural Schematic Diagram and Dimensions of QB/QBY and Valve Connection
| Flange number | Electric installation model | d1 | d2 (f8) |
d3 | n-d4 | d7 | H | h | h1 | |
| Factory production | Maximum | |||||||||
| F05 | QB/QBY10 | 65 | 35 | 50 | 4-M6 | 22 | 40 | 3 | 3 | |
| F07 | QB/QBY20 | 90 | 55 | 70 | 4-M8 | / | 28 | 45 | 3 | 3 |
| F10 | QB/QBY30 | 125 | 70 | 102 | 4-M10 | / | 28 | 45 | 3 | 3 |
| QB/QBY40 | ||||||||||
| QB/QBY60 | 42 | 65 | ||||||||
| F12 | QB/QBY90 | 150 | 85 | 125 | 4-M12 | / | 42 | 65 | 3 | 3 |
| F14 | QB/QBY120 | 175 | 100 | 140 | 4-M16 | / | 42 | 65 | 3 | 3 |
| QB200 | 60 | 60 | 80 | 2 | ||||||
| F16 | QB300 | 210 | 130 | 165 | 4-M20 | 60 key 18 | 60 | 80 | 3 | 2 |
| QB500 | ||||||||||
