Dome valve
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Nominal diameter: DN80-DN400mm
Working pressure: ≤0.5 MPa
Operating temperature: ≤150 ℃
Air pressure: 0.4 ~ 0.6 MPa
Air consumption: 1 ~ 3 L / secondary
cylinder output torque: 75 ~ 650N .m / 5bar
working medium: powder granular material
Product description
YDF-A dome valve is our company to introduce advanced foreign special powder valve technology, and in accordance with domestic and foreign thermal power and water glass manufacturing systems and other systems of the actual transmission of powder and professional development, with a number of patented technologies. New product structure, excellent performance and stability, good sealing performance, automatic pressure compensation, protective seat design, erosion resistance, open and close rotary zero friction, long service life. Products with strong automatic control of centralized control with the computer can be combined to meet the automation requirements of modern pipelines, widely used in thermal power, cement manufacturing, glass manufacturing and thermal power transmission systems such as powder control, start Closed off the flow of use.
YDF-A dome valve is widely used in thermal power plants, pneumatic ash, power plant dust, and feeding, discharging system, it has the advantages of simple structure, less wear and tear, small torque.
Structural features
1, the valve adopts inflatable ring, valve opening and closing, no contact between the spool and the seal.
2, when the valve is switched over, the ring inflated to achieve elastic deformation of the seal.
3, the valve is in place switch, and the switch signal can be sent to the PLC for remote control.
4, the valve cylinder drive, easy and quick switching.
5, the structure is simple, directly driven by the cylinder valve to open and close the valve state, easy maintenance.
Technical Parameters
|
project |
unit |
YDF200 |
YDF250 |
|
DN |
mm |
200 |
250 |
|
System pressure |
MPa |
0.35 |
|
|
(Working point) Supply pressure: |
|||
|
The lowest pressure |
MPa |
0.5 |
|
|
The highest pressure |
MPa |
0.8 |
|
|
Pressure switch high pressure |
MPa |
0.5 |
|
|
Cylinder model |
DA-160 |
||
|
System operating voltage |
V |
220VAC / 24VDC |
|
|
Ambient temperature |
℃ |
-20 ~ 55 |
|
|
Rated working temperature |
℃ |
150 |
|
|
Import and Export Flange with Reducing Adapter (Mounting) Dimensions: |
|||
|
DN |
mm |
200 |
250 |
|
Outer diameter |
mm |
340 |
395 |
|
Coupling screw hole center diameter r |
mm |
295 |
350 |
|
Number of bolts and specifications (nd × L): import |
8-M20 × 60 |
12-M20 × 65 |
|
|
Number of bolts and specifications (nd × L): exit |
8-M20 × 85 |
12-M20 × 85 |
|
|
Import and export between the flange surface distance (H) |
mm |
488 |
528 |
|
Import and export flange without reduction of the flange (installation) Size: |
|||
|
Import flange: (with 4.9.14.9.4.1) |
|||
|
Export flange: |
|||
|
DN |
mm |
300 |
350 |
|
Outer diameter |
mm |
445 |
505 |
|
Coupling screw hole center diameter |
mm |
400 |
460 |
|
Number of bolts and specifications (nd × L) |
12-M20 × 85 |
16-M20 × 85 |
|
|
Import and export between the flange surface distance (H) |
mm |
305 |
325 |
|
Overall dimensions (L × W × H) |
mm |
900 × 470 × 305 |
947 × 540 × 325 |
|
Weight (without the extension diameter take over) |
kg |
168 |
231 |
The main connection size
|
Serial number |
Code |
name |
Quantity |
Serial number |
Code |
name |
Quantity |
|||||||
|
1 |
Y-100 |
Body assembly |
1 |
4 |
Y-400 |
Actuator |
1 |
|||||||
|
2 |
Y-202 |
Reducing the takeover |
1 |
5 |
Y-501 |
trachea |
1 |
|||||||
|
3 |
Y-300 |
control box |
1 |
6 |
AC2000 |
filter |
1 |
|||||||
|
model |
D |
D1 |
d1 |
D2 |
d2 |
B |
H |
H1 |
a |
b |
||||
|
YDF200 |
470 |
340 |
295 |
445 |
400 |
900 |
305 |
488 |
8 |
12 |
||||
|
YDF250 |
540 |
395 |
350 |
505 |
460 |
946 |
325 |
528 |
12 |
16 |
||||
