
| Class | frame size (mm | clear opening (mm) | Depth (mm) | unit weight (kg) | Specification |
| B125 | 300*300 | 200*200 | 30 | 7 | ductile iron; single seal; two closed key holes |
| B125 | 400*400 | 300*300 | 30 | 9 | |
| B125 | 500*500 | 400*400 | 35 | 16 | |
| B125 | 550*550 | 450*450 | 35 | 20 | |
| B125 | 600*600 | 500*500 | 35 | 24 | |
| B125 | 700*700 | 600*600 | 40 | 35 | |
| B125 | 800*800 | 700*700 | 45 | 46 | |
| C250 | 300*300 | 200*200 | 30 | 8 | |
| C250 | 400*400 | 300*300 | 35 | 11 | |
| C250 | 500*500 | 400*400 | 40 | 21 | |
| C250 | 550*550 | 450*450 | 40 | 24 | |
| C250 | 600*600 | 500*500 | 45 | 29 | |
| C250 | 700*700 | 600*600 | 50 | 48 | |
| C250 | 800*800 | 700*700 | 60 | 58 | |
| C250 | 900*900 | 800*800 | 60 | 80 |