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![Metal flange hard seal butterfly valve D343H-10/16/25/40C [hard seal butterfly valve]](http://img79.mtnets.com/5/20210113/637461431834166387807.png)
Metal flange hard seal butterfly valve D343H-10/16/25/40C [hard seal butterfly valve]
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Product details
D343H-10/16/25/40C Metal Hard Seal Butterfly Valve Introduction
D343H-10/16/25/40CThe nominal pressure range of metal hard sealed butterfly valve isPN10~PN40.D43HManual multi-level metal hard sealed butterfly valve adopts precisionJShape elastic sealing ring and three eccentric multi-level metal hard sealing structure are widely used for medium temperature≤425℃Used for regulating flow and carrying fluids in industrial pipelines such as metallurgy, electricity, petrochemicals, water supply and drainage, and municipal construction.
D343H-10/16/25/40C Metal Hard Seal Butterfly Valve Structure Diagram
Characteristics of D343H-10/16/25/40C metal hard seal butterfly valve
1. The metal hard sealed butterfly valve adopts a three eccentric sealing structure, with almost no wear on the valve seat and butterfly plate, and has a sealing function that becomes tighter as viewed.
2. The sealing ring is made of stainless steel, which has the dual advantages of metal hard sealing and elastic sealing. It has excellent sealing performance in both low and high temperatures, corrosion resistance, and long service life.
3. The sealing surface of the butterfly plate is made of welded cobalt based hard alloy, which is wear-resistant and has a long service life.
4. The large-sized butterfly plate adopts a frame structure with high strength, large overcurrent area, and low flow resistance.
5. Metal hard sealed butterfly valves have bidirectional sealing function, and are not limited by the flow direction of the medium or the spatial position during installation. They can be installed in any direction.
6. The drive device can be installed in multiple stations (rotated 90 ° or 180 °) for easy user use.
D343H-10/16/25/40C metal hard seal butterfly valve parts material
|
Part name |
material |
|
valve body |
Cast iron, stainless steel, chromium molybdenum steel, alloy steel |
|
Disc |
Cast steel, alloy steel, stainless steel, chromium molybdenum steel |
|
sealing ring |
Combination of stainless steel and high-temperature resistant asbestos board into multiple layers |
|
valve stem |
2Cr13, 1Cr13 stainless steel, chromium molybdenum steel |
|
filler |
Flexible graphite |
D343H-10/16/25/40C metal hard seal butterfly valve performance parameters
|
Nominal Diameter |
DN/mm |
50-150 |
||
|
nominal pressure |
PN/MPa |
1.0 |
1.6 |
2.5 |
|
Test pressure PsMPa |
strength test |
1.5 |
2.4 |
3.75 |
|
Sealing test |
1.1 |
1.76 |
2.75 |
|
|
Airtight seal test |
0.5-0.7MPa |
|||
|
Applicable Medium |
Water, oil, steam, acid, etc |
|||
|
Temperature |
-40℃-570℃ |
|||
D343H-10/16/25/40C metal hard seal butterfly valve external dimensions
|
Nominal diameter DN |
External dimensions |
Connection size |
|||||||||||||
|
L |
H |
D343H |
D643H |
D943H |
PN4.0MPa |
||||||||||
|
short |
long |
H1 |
A1 |
B1 |
H2 |
A2 |
B2 |
H3 |
A3 |
B3 |
D |
D1 |
Z-d |
||
|
50 |
108 |
150 |
112 |
350 |
180 |
200 |
625 |
250 |
170 |
530 |
250 |
255 |
165 |
125 |
4-18 |
|
65 |
112 |
170 |
115 |
370 |
270 |
280 |
625 |
250 |
170 |
530 |
250 |
255 |
185 |
145 |
8-18 |
|
80 |
114 |
180 |
120 |
380 |
270 |
280 |
645 |
250 |
170 |
565 |
250 |
255 |
200 |
160 |
8-18 |
|
100 |
127 |
190 |
138 |
420 |
270 |
280 |
675 |
250 |
170 |
600 |
250 |
255 |
235 |
190 |
8-22 |
|
125 |
140 |
200 |
164 |
460 |
380 |
420 |
715 |
450 |
220 |
640 |
250 |
255 |
270 |
220 |
8-26 |
|
150 |
140 |
210 |
175 |
555 |
380 |
420 |
800 |
450 |
220 |
705 |
300 |
315 |
300 |
250 |
8-26 |
|
200 |
152 |
230 |
200 |
760 |
400 |
425 |
850 |
450 |
220 |
775 |
300 |
315 |
375 |
320 |
12-30 |
|
250 |
165 |
250 |
243 |
830 |
400 |
425 |
925 |
450 |
280 |
945 |
300 |
315 |
450 |
385 |
12-33 |
|
300 |
178 |
270 |
250 |
895 |
450 |
560 |
1035 |
650 |
280 |
1070 |
300 |
315 |
515 |
450 |
16-33 |
|
350 |
190 |
290 |
280 |
950 |
450 |
560 |
1070 |
650 |
280 |
1140 |
300 |
315 |
580 |
510 |
16-36 |
|
400 |
216 |
310 |
305 |
1190 |
535 |
580 |
1190 |
650 |
280 |
1210 |
300 |
315 |
660 |
585 |
16-39 |
|
450 |
222 |
330 |
350 |
1255 |
535 |
580 |
|
|
|
1335 |
575 |
714 |
685 |
610 |
20-39 |
|
500 |
229 |
350 |
380 |
1305 |
535 |
580 |
|
|
|
1415 |
575 |
714 |
755 |
670 |
20-42 |
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