electric metal hard sealing butterfly valve
nominal diameter: dn50 ~ 2000mm
nominal pressure: pn0.6 ~ 2.5mpa
suitable temperature: carbon steel: -29 ℃ ~ 425 ℃ stainless steel: -40 ℃ ~ 650 ℃
applicable medium: water, air, natural gas, oil products and weak corrosive fluid
drive: worm gear, electric, pneumatic, hydraulic
manufacturing standards: jb / t8527-97
flange standard: gb9113-2000
structure standard length: gb12221-89
inspection standards: gb / t13927-92
first, the electric hard seal butterfly valve product overview
d973h metal hard-sealed electric butterfly valve for food, medicine, petroleum, chemical, power plants, steel mills, industrial water treatment and high-rise building environmental protection, water supply and drainage pipe for regulating flow and cut off the best fluid device.
the introduction of advanced foreign technology can be based on the use of sophisticated j-shaped elastic ring and three eccentric multi-layer metal hard seal structure, is widely used in medium temperature ≤ 425 ℃ metallurgy, electricity, petrochemicals, as well as water supply and drainage and municipal construction and other industrial pipes, for regulating the flow and breaking the use of fluids. the valve adopts three eccentric structure, the valve seat and the disc sealing surface are made of different hardness and stainless steel, has good corrosion resistance, long service life, the valve jun mail two-way sealing function, the product complies with national gb / t13927-92 valve pressure test standard.
second, the characteristics of electric hard seal butterfly
1, the valve adopts three eccentric sealing structure, the valve seat and disc almost no wear, with the more the more tight sealing function.
2, the ring made of stainless steel, with the advantages of both metal seal and flexible seal, both in the case of low temperature and high temperature, have excellent sealing performance, with corrosion resistance, long service life and so on.
3, the sealing surface of the plate is cladded with cobalt-based hard alloy, the sealing surface is resistant to abrasion and long service life.
4, large-format butterfly plate frame structure, high strength, large flow area, small flow resistance.
5, the valve has a two-way sealing function, the installation is not subject to restrictions on the flow of media, but also the location of space, can be installed in any direction.
6, the drive can be multi-station (rotated 90 ° or 180 °) installation, user-friendly.
d973h metal hard-sealed electric butterfly valve main performance characteristics are:
unique structure, small and lightweight, flexible operation, labor-saving and convenient;
sealed, reliable, can be sealed without leakage;
flow characteristics tend to have the best linear adjustment;
using three eccentric principle , so that almost zero loss of the sealing surface extends the service life of the valve;
wide range of applications. such as: can be used for water, steam, oil, air, gas and other media.
applicable to different temperatures and pressure levels below 6.4mpa, corrosion-resistant and other media pipeline.
third, the electric hard seal butterfly valve main technical parameters
|
nominal diameter dn (mm) |
50 ~ 2000 |
|||
|
nominal pressure pn (mpa) |
0.6 |
1.0 |
1.6 |
2.5 |
|
seal test (mpa) |
0.66 |
1.1 |
1.76 |
2.75 |
|
strength test (mpa) |
0.9 |
1.5 |
2.4 |
3.75 |
|
proper temperature |
carbon steel: -29 ℃ ~ 425 ℃ stainless steel: -40 ℃ ~ 650 ℃ |
|||
|
suitable media |
water, air, natural gas, oil and weak corrosive fluids |
|||
|
leak rate |
in line with gb / t13927-92 standards |
|||
|
drive mode |
worm gear, electric, pneumatic, hydraulic |
|||
fourth, the main components of electric hard seal butterfly valve material
|
part name |
material |
|
body |
wcb, alloy steel, stainless steel, qt450-10 |
|
butterfly plate |
wcb, alloy steel, stainless steel, qt450-10 |
|
valve shaft |
2cr13 stainless steel, alloy steel |
|
sealing ring |
stainless steel ring |
|
filler |
flexible graphite |
five, electric hard seal butterfly valve using the standard
|
manufacturing standards |
jb / t8527-97 |
|
flange standard |
gb9113-2000 |
|
structure length standard |
gb12221-89 |
|
inspection standards |
gb / t13927-92 |
sixth, d973h-10/16/25 / electric clamp-type hard-sealed butterfly valve main dimensions of connection (unit: mm)
|
nominal diameter (dn) |
main dimensions |
flange size and bolt size |
|||||||
|
1.0mpa |
1.6mpa |
2.5mpa |
|||||||
|
l |
h |
h1 |
d1 |
4-ф-m |
d1 |
4-ф-m |
d1 |
4-ф-m |
|
|
50 |
43 |
530 |
112 |
125 |
ф18 |
125 |
ф18 |
125 |
ф18 |
|
65 |
46 |
530 |
115 |
145 |
ф18 |
145 |
ф18 |
145 |
ф18 |
|
80 |
49 |
565 |
120 |
160 |
ф18 |
160 |
ф18 |
160 |
ф18 |
|
100 |
56 |
600 |
138 |
180 |
ф18 |
180 |
ф18 |
190 |
ф23 |
|
125 |
64 |
640 |
164 |
210 |
ф18 |
210 |
ф18 |
220 |
ф27 |
|
150 |
70 |
705 |
175 |
240 |
ф23 |
240 |
ф23 |
250 |
ф27 |
|
200 |
71 |
775 |
208 |
295 |
m20 |
295 |
m20 |
310 |
m24 |
|
250 |
76 |
945 |
243 |
350 |
m20 |
355 |
m24 |
370 |
m27 |
|
300 |
83 |
1070 |
283 |
400 |
m20 |
410 |
m24 |
430 |
m27 |
|
350 |
92 |
1140 |
310 |
460 |
m20 |
470 |
m24 |
490 |
m30 |
|
400 |
102 |
1210 |
340 |
515 |
m24 |
525 |
m27 |
550 |
m33 |
|
450 |
114 |
1335 |
380 |
565 |
m24 |
585 |
m27 |
600 |
m33 |
|
500 |
127 |
1415 |
410 |
620 |
m24 |
650 |
m30 |
660 |
m33 |
|
600 |
154 |
1605 |
470 |
725 |
m27 |
770 |
m33 |
770 |
m36 |
|
700 |
165 |
1844 |
550 |
840 |
m27 |
840 |
m33 |
875 |
m39 |
|
800 |
190 |
2040 |
640 |
950 |
m30 |
950 |
m36 |
990 |
m45 |
|
900 |
203 |
2255 |
710 |
1050 |
m30 |
1050 |
m36 |
1090 |
m45 |
|
1000 |
216 |
2380 |
770 |
1160 |
m33 |
1170 |
m39 |
1210 |
m52 |
|
1200 |
254 |
2640 |
890 |
1380 |
m36 |
1390 |
m45 |
1420 |
m52 |