Δ. Materials for main parts
S/N | Part Description | Material 1 | Material 2 | Assy Qty |
1 | connecting flange | Q235/A36 | Q235/A36 | 1 |
2 | big bevel gear | 45#/1045 | 45#/1045 | 1 |
3 | sleeve | 45#/1045 | 45#/1045 | 1 |
4 | small bevel gear | 40Cr/5140 | 40Cr/5140 | 1 |
5 | shell | HT200/No.30, | 20#/1020 | 1 |
6 | shaft | 40Cr/5140 | 40Cr/5140 | 1 |
7 | square flange | Q235/A36 | Q235/A36 | 1 |
8 | GB308-84 steel ball | 45#/1045 | 45#/1045 | 46(47) |
9 | handwheel | 45#/1045 | Q235/A36 | 1 |
Δ. Main outer dimensions
Type | φA | φB | C | D | E | φF | G | NPT(60°tapered pipe thread) |
BG107A, BG107B | φ70 | φ88.9 | 14.5 | 120.5 | 274 | 35 | 57 | 3"-8NPT |
BG207A, BG207B | φ106.5 | φ133 | 20.5 | 139 | 303 | 35 | 57 | 4"-8NPT |
BG307A | φ110 | φ136.5 | 22 | 175.5 | 444 | 35 | 57 | 4"-8NPT |
Δ. Technical parameters
Type | Max.torque | Speed ratio | Max.stem dia. | Handwheel dia. | Ref. weight(Kg) |
BG107A, BG107B | 1350 | 3:1 | 65 | 457 | 26.6,30 |
BG207A, BG207B | 2700 | 4.07:1 | 100 | 610 | 46,50.3 |
BG307A | 5400 | 6:1 | 100 | 610 | 86 |
Δ. Product Description and Application
1 This series of 360 ° rotary valve drive (gear box) is applied to gate valve, globe valve and other valves whose plates (discs) move at linear direction.
2 structural features:
3 bevel gear transmission, can be alone with the combination of the valves to form the manual valves; also be equipped with electrical devices to form the electric ones.
4 small size, light weight, the output shaft and the valve connected with the gear.
5 fully closed, fully sealed, filled with grease to extend the service life.
6 output flange in line with IS05210 standard, can also be produced according to user needs.
7 opening instruction device is optional.
Δ Setup Procedure:
1 First, checking the drive sleeve and the shell flange connection size are consistent with the order requirements, and the overhang of the valve shaft and the flange disc as well.
2 Then this device will be fitted with the valve after all the check is correct.
ΔMaintenance:
1 shall not use the device beyond the rated operating conditions.
2 Lubrication of regular inspections every two years.



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