Product Introduction:
This is a wafer-type triple eccentric metal hard-seal butterfly valve, employing a triple eccentric wedge-shaped metal hard-seal structure. The valve body has a wafer-type structure, relying on the clamping of the pipe flanges on both sides for installation. The butterfly plate rotates from 0° to 90° to achieve pipeline shut-off and flow regulation.During the opening and closing process, the sealing surface experiences no frictional wear, providing advantages such as bidirectional tight sealing, high temperature and pressure resistance, fire resistance, and wear resistance. The valve body is compact and lightweight, occupying little installation space, and is widely used in high-temperature and high-pressure industrial pipelines for steam,
heat transfer oil, flue gas, oil products, and natural gas. It is a mainstream shut-off and regulating valve in chemical, power plant, metallurgical, and heating systems.
Structural Features:
1. Triple Eccentric Sealing Structure:
The valve shaft features a triple offset design; the butterfly plate immediately disengages from the valve seat upon opening,
eliminating continuous scraping of the sealing surface throughout the entire opening and closing process;
upon closing, a wedge-shaped compression self-sealing is formed, with the seal tightening as the medium pressure increases,
achieving bidirectional Class VI zero leakage and a service life far superior to ordinary butterfly valves.
2. Compact Wafer Body:
No external flanges; secured by flanges at both ends of the pipeline.
Short structural length and light weight save installation space.
Lower cost compared to flanged butterfly valves of the same diameter.
3. Multi-Layer Metal Hard Seal:
The butterfly plate is equipped with multi-layer stainless steel laminated metal sealing rings, which are high-temperature resistant, erosion resistant, and fireproof.
It eliminates the problem of high-temperature aging and failure of rubber seals. Suitable for process media containing trace amounts of dust and particulate matter.
4. High Temperature and Pressure Resistance:
Versatile Applications: Covers high-temperature steam and low-temperature process media.
Multiple options are available for sealing pairs and valve body materials, including those suitable for corrosive media.
Specifications:
Operation type:Manual-Worm Gear
Size: DN50-DN1200
Pressure: PN10/16, Class150,JIS6K/10K
Face to Face Standard: API609,BS5155,DIN3202,ISO5752
Flange Standard:DIN,BS,ISO,ANSI,AS,JIS
Mounting Flange:ISO5211
Materials:
Body :Stainless Steel
Disc: Stainless Steel
Seal : Stainless Steel+Flexible Graphite
Stem : SS410
Worm Gear:WCB
Characteristic:
Applicable Medium: Water, Oil, Gas
Applicable Temperature:-20~425℃
Size (mm) | 50-1200mm |
Flange connection | BS4504 PN10, PN16, PN25 and PN40.
DIN2501 PN10, PN16, PN25 and PN40.
ANSI B16.5, 16.47 / 150LB, 300LB
JIS 10K, 16K & 20K / 30K / 40K
|
Face to Face Dimensions | API609,BS5155,ISO5752,ANSI16.34 |
Material | Body | WCB; CF8; CF8M; Al-bronze;STL |
| Disc | WCB; CF8; CF8M; Al-bronze;STL |
| Stem | SS410/420/416; Monel |
| Seat | CF8; CF8M;STL+Flexible Graphite |
| Packing | Flexible Graphite |
Operating | Wormgear; Electric; Pneumatic ; |
All valves are equipped with professional export protective packaging.
With protective caps on the sealing surfaces, rust-proof treatment, and shock-absorbing material filling to ensure intact transport; the loading is secure and safe.
We can also customize packaging according to customer requirements.
Regarding transportation methods, we can provide appropriate transportation options based on the cargo requirements and the customer's timeliness requirements.
Common transportation methods include: sea freight, air freight, land freight, and express delivery.
