ANSI Standard High Performance Triple Offset Butterfly Valve For
Industry Pipeline Use
Product introduction:
The American standard butterfly valve is a high-performance
butterfly valve designed and manufactured according to the current
American standard API609. The valve adopts a three-dimensional
eccentric conical seat sealing pair, and the butterfly plate seal
uses a new type of metal plate embedded on the butterfly plate to
match the valve seat. By using the butterfly plate to rotate and
compress the seal, the friction resistance of the sealing surface
is small, and it has a function of tightening as it closes. This
ensures reliable sealing performance, and opening ensures that the
seal is completely out of contact, ensuring that the sealing
surface is not damaged. API butterfly valves are divided into
flange type three eccentric structure, clamp type three eccentric
structure, and valve body with protrusions around, designed as a
single flange structure with screw holes.
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” - 40” |
| 6 | Pressure nominal (lb) | Class | 150/300/600 |
| 7 | Test pressure (MPa) | Strength test (water) | 3.0/7.5/16.5 |
| 8 | Sealing test (water) | 2.2/5.5/12.1 |
| 9 | Medium applicable | Water, steam, oil etc. |
| 10 | Working temperature | -29~425℃ |
| 11 | Connection way | Wafer, flange, lug |
| 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.
