Electric track ball valve
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Electric track ball valve
ZSLQO/ZDSQO series electric track ball valve is a combination of gate valve, ball valve, globe valve, plug valve advantages, to achieve a mechanical wedge tight closing characteristics.
Features of electric track ball valve:
1, open, close no wear: the ball deviates from the valve seat in the rotation, eliminating the wear of the seal, to solve the traditional ball valve seat and ball wear problem.
2, low torque operation: because the valve seat, the ball is not worn, so the valve stem rotation easily, without the need to increase the torque of the gear box and other institutions.
3. Single seat design: The static single seat setting of the valve guarantees the two-way zero leakage of the fluid medium and avoids the problem of increased pressure in the inner cavity of the double seat valve.
4. Hard sealing surface of anti-wear sphere: The valve core sphere is surfacing with a layer of hard polished sealing surface, which can meet the sealing performance in very harsh occasions.
5. Self-cleaning: when the valve core ball is tilted away from the valve seat, the fluid flows along the sealing surface 360 ° to flush the impurities.
6, flow characteristics: all through the standard diameter, no pressure loss, enhance the system efficiency, and make the corrosion down to very low.
7, long life: due to the opening and closing of no wear, low torque, so the failure of low efficiency and long life.
Due to the above characteristics, the electric track ball valve is suitable for venting and discharging of oil and natural gas. Emergency shutdown and bypass on fluid pipeline; Isolation of inlet and outlet of flow meter or pump; Normal operation under many occasions such as zero leakage or frequent operation is required.
Working principle and structure type
1. Opening of electric track ball valve
In the closed state, when the actuator drives the valve stem to move upward, the angular plane at the bottom of the valve stem causes the ball sealing surface to tilt away from the valve seat, and the valve stem continues to lift and interacts with the guide pin in the spiral groove of the valve stem, so that the ball starts to rotate 90 ° without friction until the valve stem is lifted, and the ball through hole is aligned with the valve channel.
2. Closing of electric track ball valve
When closing, when the actuator drives the valve stem to move down, the valve stem moves down, and the ball starts to rotate, the valve stem continues to move down, the valve stem is affected by the guide pin embedded in the spiral groove, so that the valve stem and the ball rotate 90 ° at the same time, when it is about to close, the ball has rotated 90 ° without contact with the valve seat, the valve stem continues to move down, the ball swings, and is pressed tightly on the valve seat by the mechanical wedge, the valve seat sealing surface produces elastic deformation, and the ball sealing surface closely match, so as to ensure safe and reliable zero leakage.
3. Schematic diagram of electric track ball valve
4. Types of electric track ball valves
Electric track ball valve is mainly divided into ZSLQO type pneumatic piston track ball valve and ZDSQO type electric track ball valve.
Main parts material
| Part Name |
Materials |
||
| Valve body, bonnet |
carbon cast steel |
chromium nickel titanium cast steel |
chromium-nickel-molybdenum cast steel |
| Sphere |
cast steel surfacing alloy steel |
Stainless steel surfacing cobalt base carbide |
Stainless steel surfacing cobalt base carbide |
| Stem |
Chrome stainless steel |
Special stainless steel |
|
| Valve seat |
Stainless Steel |
||
| Sealing ring, packing |
asbestos graphite |
Teflon |
|
| Applicable media |
Steam, oil, natural gas |
Nitric acid |
Acetic acid |
Outline and Size of ZSLQO Pneumatic Piston Orbital Ball Valve
| Nominal diameter DN(mm) |
25 |
32 |
40 |
50 |
65 |
80 |
100 |
150 |
200 |
| D |
115 |
135 |
145 |
160 |
180 |
195 |
215 |
280 |
335 |
| D1 |
85 |
100 |
110 |
125 |
145 |
160 |
180 |
240 |
295 |
| L |
160 |
180 |
200 |
130 |
190 |
310 |
350 |
480 |
600 |
| ØA |
180 |
180 |
240 |
240 |
270 |
270 |
270 |
325 |
325 |
| H |
560 |
580 |
650 |
730 |
800 |
870 |
930 |
1030 |
1150 |
| N-dd |
4-14 |
4-14 |
4-18 |
4-18 |
4-18 |
8-18 |
8-18 |
8-23 |
12-23 |
| Signal connector |
M10 × 1 |
||||||||
Note: All data in this table are based on PN16
If you have any special requirements, please put forward at the time of order.
Outline, Size and Weight of ZDSQO Electric Track Ball Valve
| Nominal diameter DN(mm) |
50 |
65 |
80 |
100 |
150 |
200 |
250 |
300 |
350 |
400 |
500 |
600 |
700 |
| D |
195 |
220 |
230 |
215 |
280 |
335 |
405 |
460 |
520 |
580 |
705 |
840 |
910 |
| D1 |
145 |
170 |
180 |
180 |
240 |
295 |
355 |
410 |
470 |
525 |
650 |
770 |
840 |
| b |
28 |
32 |
34 |
20 |
24 |
26 |
30 |
30 |
34 |
36 |
44 |
48 |
50 |
| Z-d |
4-25 |
8-25 |
8-25 |
8-18 |
8-23 |
12-23 |
12-25 |
12-25 |
16-25 |
16-30 |
20-34 |
20-41 |
24-41 |
| L |
292 |
330 |
356 |
350 |
480 |
600 |
730 |
850 |
980 |
1100 |
1250 |
1450 |
1650 |
| A |
640 |
640 |
640 |
640 |
640 |
640 |
640 |
640 |
640 |
820 |
820 |
820 |
940 |
| H |
610 |
670 |
730 |
750 |
860 |
920 |
990 |
1050 |
1100 |
1320 |
1520 |
1850 |
2050 |
| Weight |
40 |
45 |
43 |
82 |
175 |
236 |
426 |
884 |
890 |
890 |
1138 |
1273 |
1512 |
Note: All data in this table are based on PN16
If you have any special requirements, please put forward at the time of order.
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