info@welcovalve.com
TEL: 86-577-67279881
FAX: 86-577-67279880
+86-15067717767
Skype: welcovalve
Bi-directional metal sealing triple offset butterfly valve has features of corrosion resistance, high bi-direction sealing performance and long life application.
Characteristics:
1. Reasonal structure design, zero leakage sealing, small volume, light weight and easy operation.
2. Adopting double eccentric sealing structure, over close self-locking performance, quick and complete releasing contact of sealing trims to avoid scratch and elongate life span.
3. The sealing trims adopts acid-proof stainless steel, acid-proof stainless steel or stainless steel +PTFE and have corrosion resistance, high temperature resistance and wide use features.
4. The valve adopts half shaft, bridge style disc to ensure high stiffness, large flow area, small flow resistance and saving energe.
5. The valve may adopts horizantal or vertical installation free of medium direction.
Main part material:
|
Part name |
Material |
|
Valve body |
GGG25,GGG40, 500-7,WCB,316 |
|
Valve shaft |
420,316 |
|
Valve disc |
GGG25,GGG40, 500-7,WCB,316 |
|
Sealing trims |
410, CoCrW, SS321, SS304, PTFE |
Applying standards:
General design complies with: MSS-67-2002, ANSI/AWWA C504, BS EN593-2004, DIN3354
Flange connecting complies with: ASME/ANSI B16.5-2003, ASME B16.47-2006, BS4504, DIN2532, DIN2533
Face to face length complies with: ASME B16.10-2000, BS EN558-2, DIN3202
Pressure testing complies with: API598-2004, EN 12266-1/2, DIN3230
Main technical parameter:
|
Nominal pressure(Mpa) |
0.25 |
0.6 |
1 |
1.6 |
2.5 |
|
Nominal diameter(mm) |
50-3000 |
50-3000 |
50-3000 |
50-3000 |
50-1000 |
|
Connecting style |
Flange connection |
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|
Sealing test (Mpa) |
0.275 |
0.66 |
1.1 |
1.76 |
2.75 |
|
Shell strength test(Mpa) |
0.375 |
0.9 |
1.5 |
2.4 |
3.75 |
|
Applying medium |
Water, oil, gas and corrosive medium |
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|
Applying temperature(0C) |
(NBR)-29-80, (EPDM)-29-130, ( silicon rubber) -29-250 |
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|
Driving style |
Manual, worm gear, electricity, pneumatic, hydraulic |
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