Metal hard seal butterfly valve adopts J elastic sealing ring and three eccentric multilevel metal hard sealing structure. Metal hard seal butterfly is widely utilized for pipe lines to regulate flow or cut off medium in metallurgy, electricity, petroleum, etc.
Working temperature: ≤425℃
Characteristics:
1. Metal hard seal butterfly valve adopts three eccentric sealing structure. Abrasion does not exist between base and disc. For that, the valve has good sealing.
2. Sealing ring is made of stainless steel, having the advantages of metal hard sealing and elastic sealing. It has excellent sealing, corrosion resistance and long service life under high or low temperature.
3. Sealing face of disc adopts cemented carbide, having wearing resistance and long service life.
4. Large size disc adopts lattice structure, having high strength, large flow area and low fluid resistance.
5. Metal hard seal butterfly valve has two-way sealing. Valve can be installed at any positions without the limitation of medium flow direction or space.
6. Actuator can be installed on any position on the valve for convenient utilization.
Standards
Design: GB/T 12238
Length: GB/T 12221
Flange: GB/T 9113
Testing & inspection: GB/T 13927
Identification: GB/ 12220
Parameter
|
Model |
D343H-10 |
D343H-10P |
D343H-10R |
|
|
Working Pressure(MPa) |
1.0-4.0 |
|||
|
Working Temperature(℃) |
≤425 |
≤200 |
||
|
Applicable Medium |
Water, oil, non corrosive medium |
Nitric acid |
Acetic acid |
|
|
Materials |
Body/disc |
WCB |
CF8/304 |
CF3M/316L |
|
Stem |
2Cr13 |
304 |
316L |
|
|
Body sealing face |
Bead welding 507 |
－ |
－ |
|
|
Disc sealing face |
304＋flexible graphite |
304＋PTFE |
304＋PTFE |
|
|
Packing |
flexible graphite |
PTFE |
PTFE |
|
Dimensions
|
Nominal Diameter(DN) |
Length |
Dimensions(reference value) |
Face to face(standard value) |
|||||||||||||
|
L |
H |
Dt343H |
Dt643H |
Dt943H |
PN4.0MPa |
|||||||||||
|
mm |
inch |
S |
L |
H1 |
A1 |
B1 |
H2 |
A2 |
B2 |
H3 |
A3 |
B3 |
D |
D1 |
Z-d |
|
|
50 |
2 |
108 |
150 |
112 |
350 |
180 |
200 |
|
|
|
530 |
250 |
255 |
165 |
125 |
4-18 |
|
65 |
2 1/2 |
112 |
170 |
115 |
370 |
180 |
200 |
625 |
355 |
92 |
550 |
250 |
255 |
185 |
145 |
8-18 |
|
80 |
3 |
114 |
180 |
120 |
380 |
180 |
200 |
625 |
355 |
92 |
565 |
250 |
255 |
200 |
160 |
8-18 |
|
100 |
4 |
127 |
190 |
138 |
420 |
180 |
200 |
645 |
355 |
92 |
600 |
250 |
255 |
235 |
190 |
8-22 |
|
125 |
5 |
140 |
200 |
164 |
460 |
180 |
200 |
675 |
550 |
138 |
640 |
250 |
255 |
270 |
220 |
8-26 |
|
150 |
6 |
140 |
210 |
175 |
555 |
270 |
280 |
715 |
550 |
138 |
705 |
300 |
315 |
300 |
250 |
8-26 |
|
200 |
8 |
152 |
230 |
208 |
605 |
270 |
280 |
800 |
550 |
138 |
775 |
300 |
315 |
375 |
320 |
12-30 |
|
250 |
10 |
165 |
250 |
243 |
680 |
270 |
280 |
850 |
550 |
138 |
945 |
300 |
315 |
450 |
385 |
12-33 |
|
300 |
12 |
178 |
270 |
283 |
800 |
380 |
420 |
925 |
450 |
220 |
1070 |
300 |
315 |
515 |
450 |
16-33 |
|
350 |
14 |
190 |
290 |
310 |
830 |
380 |
420 |
1035 |
450 |
220 |
1140 |
300 |
315 |
580 |
510 |
16-36 |
|
400 |
6 |
216 |
310 |
350 |
915 |
450 |
470 |
1070 |
650 |
280 |
1210 |
300 |
315 |
660 |
585 |
16-39 |
|
450 |
8 |
222 |
330 |
380 |
960 |
480 |
490 |
1190 |
650 |
280 |
1335 |
575 |
714 |
685 |
610 |
20-39 |
|
500 |
20 |
229 |
350 |
410 |
1020 |
480 |
490 |
|
|
|
1415 |
575 |
714 |
755 |
670 |
|
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