A73INF Dome type butterfly valve has a logic clear inflating model which supply compressed air to back of seat when the valve close and release compressed air before the valve opening. For abrasive materials like Lithium battery materials, boiler bed sand and limestone, even sticking powder, the inflatable seat can allow solids existing between seat and disc without effecting to sealing. Extra size of solids will be wiped off by the valve construction, sealing are well assured and well protected.
Since there is no friction between the disc and the seat when the valve is operated, meanwhile the valve stem is behind the seating ring instead of go through seating ring like traditional inflatable seat butterfly valve, a A73INF Dome type butterfly valve can reach a life of more than three million cycles, providing contact wear compensation even when the valve seat or ball is severely abraded by material.
For slurry, bulk powder, particles, irregular solids, adhesive powder, gas and gas powder, the A73INF Dome type butterfly valve ensures the reliability of system operation and increases valve life by magnitude, greatly reducing impact of valve stop or replacement on material production.
| Series |
A73INF Dome type butterfly valve |
| Connection |
Wafer |
| Normal diameter |
DN50-DN350 |
| Max.working pressure |
10bar |
| Standard working pressure |
Full vacuum~8bar (according the on-site gas source) |
| Flange standard |
EN1092 PN10/16,ANSI Class150,JIS 10K/16K |
| Structure length |
See drawing |
| Top flange |
ISO 5211 |
| Seal test |
SO 5208 Category 3,API 598 Table 5 |
| Temperature range |
-40°C to + 350°C (Depending on pressure,medium and material) |
| Operation |
Pneumatic actuator(DA,SA) |
| Torque |
the torque varies according to different use of medium |
| Size |
A |
B |
C |
D |
E |
Top work |
L |
| DN |
Inch |
| 50 |
2" |
126 |
79 |
13.5 |
92 |
11 |
F05 |
54 |
| 65 |
2.5" |
126 |
87 |
13.5 |
105 |
11 |
F05 |
56 |
| 80 |
3" |
145 |
100 |
17.5 |
130 |
11 |
F07 |
58 |
| 100 |
4" |
170 |
124 |
17.5 |
157 |
14 |
F07 |
63 |
| 125 |
5" |
185 |
144 |
17.5 |
186 |
14 |
F07 |
65 |
| 150 |
6" |
203 |
150 |
18.5 |
216 |
17 |
F10 |
65 |
| 200 |
8" |
239 |
186 |
24.5 |
269 |
22 |
F10 |
71 |
| 250 |
10" |
275 |
226 |
24.5 |
324 |
22 |
F10 |
77 |
| 300 |
12" |
307 |
251 |
30 |
380 |
27 |
F12 |
83.5 |
Optional materials of main components
| ltem |
Parts |
Material |
Standard |
Corrosion-resistant and Wear-resistant Treatment or Temperature Remarks |
| 1 |
Valve body |
SS304 |
ASTM A351 CF8 |
Pickling Passivation |
| SS304+Tungsten carbide |
ASTM A351 CF8+WC |
Internal Tungsten carbide coating,
external pickling passivation |
| SS304+Ceramic |
ASTM A351 CF8+TC |
Internal Ceramic coating
external pickling passivation |
| SS304+Halar |
ASTM A351 CF8+Halar |
Internal Halar coating
external pickling passivation |
| 2 |
Valve disc |
SS304 |
ASTM A351 CF8 |
Pickling Passivation |
| SS304+Halar |
ASTM A351 CF8+Halar |
Halar coating |
| SS304+Tungsten carbide |
ASTM A351 CF8+WC |
Tungsten carbide coating |
| SS304+Ceramic |
ASTM A351 CF8+TC |
Ceramic coating |
| SS304+Ni60 |
ASTM A351CF8+Ni60 |
Sealing surface with Ni60 weld coating |
| 3 |
Valve seat |
Wear-resistant EPDM |
EPDM-HT |
-20ºC~120ºC |
| H160 |
H160 |
-20ºC~160ºC |
| F260 |
F260 |
-20°ºC~260ºC |
| Diamond carbon coating SS304 |
ASTM A351 CF8+Diamond |
-35°ºC~400ºC |
| 4 |
Valve stem |
431 |
SS431 |
|
| 304 |
SS304 |
|
| 5 |
Packing gland |
304 |
ASTM A351CF8 |
Pickling passivation |
| 6 |
Bottom cover |
316 |
ASTM A351CF8M |
Pickling passivation |
| 7 |
Packing |
RPTFE |
RPTFE with 25%carbon
fiber reinforced |
Temperature to 200ºC |
| P287 |
P287 |
Temperature to 300ºC |
| Graphite |
Graphite |
Temperature to 400ºC |
| 8 |
Bearing |
P287 |
P287 |
|
SS316+high
temperature polymer |
SS316 |
High temperature polymer coating |
| 9 |
Screws |
Stainless steel |
SS304 |
|
Typical applications
Single Cone Dryer
Vibrating dryer
Pressure tank
Sending tank
Lithium battery materials
Semiconductor Materials
Mining Materials
High temperature materials
ABC Valve focuses on Automatic Butterfly valve Control. The manufacturing system and products are certified by ISO9001, BV Marine, CE, ATEX and TS. The cooperative team is knowledgeable in fluid control technology and make sure that ABC valves suppling to worldwide customers with high quality and competitive price.
With unique patent designs, special attention on user' s feedback, ABC valves are widely applied in lithium battery industry, food industry, pharmaceutical, textile dyeing, heating and cooling, municipal, shipbuilding, electronics, nuclear power, petrochemical, paper-making, environmental protection etc.
Mission of ABC Valve-- Make fluid control easier.
ABC Main Products
ABC Team with Clinets
1) Q: Are you a manufacturer or trading company?
A: ABC Valve is a professional valve manufacturer with experienced R&D team.
2) Q: Do you have any agent or representative abroad?
A: Yes, we have agents in some countries, they can offer local service for you.
3) Q: What kinds of valve can you supply?
A: We can supply butterfly valve, ball valve, check valve and so on.
4) Q: Do you have any certificate for the valves?
A: Yes, we have CE, BV, ATEX, TS and so on.
5) Q: What's the delivery time?
A: If all the parts of the valve are ready in stock, the valves can be delivered within 7~10 days.
6) Q: What are the countries or regions you supply valves?
A: ABC valves have been supplied to USA, Europe, Australia, Singapore, South Africa and so on.
Audited Supplier 
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