The chain star discharge valve is also known as the chain-driven discharge device. It completes the unloading process through a rotating impeller within the housing. The device features an upper feed inlet and a lower discharge outlet.
Under normal conditions, materials enter the rotating impeller through the upper feed inlet. The impeller’s uniformly sized compartments become filled with materials. As the impeller rotates, the materials are discharged through the lower outlet.
In a negative pressure situation, materials are blown back to the upper chamber. This makes it difficult to discharge through the impeller outlet. To address this issue, a pressure equalization pipe is installed on one side of the housing. This pipe balances the air pressure in the impeller compartments with that in the upper chamber. This facilitates material discharge and improves unloading efficiency.
Properties of the chain star discharge valve
The device operates reliably and smoothly, with low noise, few faults, and a long lifespan. The meshing components are made from ductile iron and bearing steel, ensuring excellent performance and high wear resistance.
It employs a planetary rotation principle, with input and output aligned on the same axis, featuring a direct coupling with the motor.
The discharge device has strong overload capacity, low impact inertia torque, and is suitable for frequent starts and reverse operations.
The bearings, gearbox, and valve body are designed to be distant from high temperatures and dust. The front and rear end caps provide good sealing performance to prevent dust leakage, thereby extending the lifespan of moving parts and the lubrication system.
Technical Specification
|
Model |
Nominal diameter (mm) |
Volume of material discharged per revolution L/r |
Discharge capacity m3/h（η=100%） |
Supported motor power (kW) |
Weight （kg） |
||
|
20r.p.m |
30r.p.m |
45r.p.m |
|||||
|
XG100 |
100 |
1.0 |
1.2 |
1.8 |
2.7 |
0.37 |
84 |
|
XG125 |
125 |
1.5 |
1.8 |
2.7 |
4.05 |
0.37 |
96 |
|
XG150 |
150 |
2.5 |
3.0 |
4.5 |
6.75 |
0.55 |
108 |
|
XG200 |
200 |
4.3 |
5.16 |
7.74 |
11.61 |
0.75 |
228 |
|
XG260 |
260 |
8.0 |
9.6 |
14.4 |
21.6 |
1.1 |
342 |
|
XG300 |
300 |
12.0 |
14.4 |
21.6 |
32.4 |
1.5 |
437 |
Drawing & dimension
| Type |
L |
L1 |
L2 |
φD |
φD1 |
φD2 |
H |
H1 |
H2 |
H3 |
n—φd |
|
XG100 |
400 |
430 |
254 |
100 |
215 |
180 |
330 |
105 |
24 |
3 |
8—φ18 |
|
XG125 |
504 |
476 |
280 |
125 |
245 |
210 |
370 |
185 |
26 |
3 |
8—φ18 |
|
XG150 |
558 |
527 |
310 |
150 |
280 |
240 |
420 |
210 |
28 |
3 |
8—φ23 |
|
XG200 |
612 |
578 |
340 |
200 |
335 |
295 |
460 |
230 |
30 |
3 |
12—φ23 |
|
XG260 |
730 |
720 |
406 |
260 |
405 |
355 |
530 |
265 |
31 |
3 |
12—φ25 |
|
XG300 |
876 |
864 |
480 |
300 |
460 |
410 |
620 |
310 |
34 |
4 |
12—φ25 |
What are the differences between Chain Star Discharge Valve and ordinary discharge device?
Operating Conditions
The chain-type discharge device can operate under higher temperatures or other harsh conditions, with less influence from climate variations. In contrast, ordinary discharge devices are limited by temperature and require special materials for harsh operating conditions.
Compact Structure
The chain-type discharge device features a compact design that transmits the same power with a smaller profile. Ordinary discharge devices cannot match its structural efficiency or power capabilities.
Efficiency
The chain-type discharge device has no sliding losses in speed, resulting in higher transmission efficiency compared to ordinary discharge devices.
Transmission Ratio
The chain-type discharge device allows for a larger transmission ratio, which ordinary discharge devices cannot achieve.
Power Transmission at Low Speed
The chain-type discharge device can transmit significant power at low speeds, whereas ordinary discharge devices are unable to transmit power effectively at low speeds.
