ANSI Standard Stainless steel CF8 CF8M Lug Type Wafer Triple Offset
Butterfly Valve
Product introduction:
API butterfly valve is according to the current standard API609
design and manufacture a kind of high performance butterfly valve,
using three-dimensional eccentric oblique cone valve seat seal,
butterfly plate sealing adopts new type metal embedded put on the
butterfly plate and valve seat, using disc rotating pressure tight
seal, so the sealing surface friction small, closed with functions
of closed more and more tightly, sealing performance and reliable,
so open to ensure sealing completely out of contact, to ensure the
sealing surface is not damaged, 815W, 830W, 360W series of
butterfly valve of the main structure characteristics of wafer and
flange three eccentric structure, and 815L series butterfly valve
around the main structure characteristics of the valve body will
lugs design into a single flange with screw hole structure.
The triple offset metal seal butterfly valve series is a long-life
and energy-saving butterfly valve. Its structure is designed based
on the three-dimensional eccentricity principle, and the valve seat
adopts a multi-level structure compatible with hard and soft seals
or an all metal sealing structure. It is a high-performance
butterfly valve product that can be used at higher temperatures and
pressures. This product is widely used in pipelines for metallurgy,
steel, electricity, petroleum, chemical, heating, air, gas,
combustible gas, municipal water supply, and drainage, as a load
stop or regulating medium flow. The three eccentric butterfly valve
can correspond to various structural lengths, and due to its
diverse material selection, it can correspond freely in high
temperature, low temperature, and various corrosive media such as
acid. Especially in terms of large diameter, its advantage of zero
leakage is constantly replacing other shut-off valves.
Product specification:
| 1 | Technical standard | Design and manufacturing | API609 |
| 2 | Length structure | ASME B16.10 |
| 3 | Flange connection | ASME B16.5, ASME B16.47 |
| 4 | Test and inspection | API598 |
| 5 | Port size | Inch | 2” - 32” |
| 6 | Pressure nominal (lb) | Class | 150 |
| 7 | Test pressure (MPa) | Strength test (water) | 3.0 |
| 8 | Sealing test (water) | 2.2 |
| 9 | Medium applicable | Water, steam, oil and corrosive fluids |
| 10 | Working temperature | 200℃ |
| 11 | Connection way | Flange |
| 12 | Driven method | Worm gear, electric and pneumatic actuator |
Product features:
1. Simple external structure, small volume, light weight, low cost,
and wide application range
2. The structural characteristics of this butterfly valve eliminate
the disadvantage of other types of butterfly valves being over
opened and unable to seal, and it can be used normally at high
temperatures, overcoming the defect of easy leakage due to thermal
expansion when used under high temperature conditions.
3. The valve selects different sealing surface materials according
to the requirements of the medium used to ensure that the sealing
surface is resistant to wear, erosion, and has a long service life.
