EURO 20 Type 21 motorizable and motorized - Sewage Version
| The EURO 20 type 21:
|
Motorized version
|
Material and coating
|
| Item | Designation | Material | Coating |
1 | Yoke - Flange | Ductile iron | Epoxy 250 microns |
2 | Adaptor | Carbon steel | Epoxy 250 microns |
3 | 4 bolts CHC M10/30 4 washers M10 / 2 | Steel | Zinc plated |
4 | CC operating stem | Stainless steel | |
5 | Key | Steel | |
6 | 4 bolts H 10/45 8 washers M10 / 2 | Steel | Zinc plated |
Detail of key dimensions of the operating stem (CC)
|
| DN | Square S | d | B | C | E | Key |
| mm | mm | mm | mm | mm | mm | mm |
| 65 | 17.3 | 20 f 8 | 28 | 4 | 16.5 | 6 x 6 x 28 |
| 80 | 17.3 | 20 f 8 | 28 | 4 | 16.5 | 6 x 6 x 28 |
| 100 | 19.3 | 22 f 8 | 36 | 4 | 18.5 | 6 x 6 x 36 |
| 125 | 19.3 | 22 f 8 | 36 | 4 | 18.5 | 6 x 6 x 36 |
| 150 | 19.3 | 22 f 8 | 36 | 4 | 18.5 | 6 x 6 x 36 |
| 200 | 24.3 | 28 f 8 | 45 | 5 | 20.0 | 8 x 7 x 45 |
| 250 | 27.3 | 32 f 8 | 50 | 5 | 27.0 | 10 x 8 x 50 |
| 300 | 27.3 | 32 f 8 | 50 | 5 | 27.0 | 10 x 8 x 50 |
Choice of the servomotor: values in Nm
| DN | Nominal torque | Setting the torque switch valve closing | |
| mm | Nm | Initial torque in factory | Maxi torque |
65 | 40 | 50 | 60 |
80 | 40 | 50 | 60 |
| 100 | 60 | 80 | 100 |
| 125 | 60 | 80 | 100 |
| 150 | 70 | 95 | 120 |
200 | 170 | 200 | 250 |
250 | 200 | 250 | 300 |
300 | 250 | 300 | 400 |
The nominal torque of the motor must be equal or greater than the maximum setting of the torque switch.
Closing the valve: motor stops through torque switch. Limit switch on security.
Opening the valve: motor stops through limit switch. Torque switch on security.
Assembly of the motor
| 1) Put the 4 bolts H 2) Assemble the adaptor on the motor with the 4 CHC bolts 3) Assemble the motor/adaptor on top of the operating stem of the valve. 4) Tighten the bolts. |
