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American standard flange hard seal butterfly valve D43H-150LB
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Product details
Introduction to D43H-150LB American standard flange hard seal butterfly valve
D43H-150LB American standard flange hard seal butterfly valve manual flange hard seal butterfly valve, with a nominal pressure range of PN10~PN40. The D43H manual multi-level metal hard seal butterfly valve adopts a precision J-shaped elastic seal ring and a three eccentric multi-level metal hard seal structure. It is widely used in industrial pipelines such as metallurgy, power, petrochemicals, water supply and drainage, and municipal construction where the medium temperature is ≤ 425 ℃, for regulating flow and carrying and breaking fluids.
Characteristics of D43H-150LB American standard flange 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.
Structural diagram of D43H-150LB American standard flange hard seal butterfly valve
D43H-150LB American standard flange 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 |
D43H-150LB American standard flange hard seal butterfly valve performance parameters
|
Nominal Diameter |
DNmm |
50-150 |
||
|
nominal pressure |
PNMPa |
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℃ |
|||
D43H-150LB American standard flange 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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