● Standardized actuation flange
● Permanent torque
● No friction between seat and disc
● Profiled disc
● 3-pin stuffing box
● Two pieced shaft
● Treated bearing with protectors
● Streamlined disc shape
● Fire-safe design
● Easy actuator automation
● Ensures bi-directional seating
● Low operating torque
● Reduced pressure drop
● Optimized Cv for regulating purposes
● Perfect seal to outside
● Guaranteed reliability and increased lifespan
● Excellent sealing properties
Triple Eccentric butterfly valve add a third angular eccentric based on double eccentric structure.
The three offsets below:
The first offset is that the valve shaft is behind the disc shaft so that the seal can completely close the entire valve seat.
The second offset is that the center-line of the valve shaft is offset from the pipe and valve center-line to avoid interference from valve opening and closing.
The third offset is that the seat cone axis deviates from the center-line of the valve shaft, it ensure the sealing ring of the disc can be separated or touched with seat rapidly so that friction and squeeze between seat and sealing ring will be eliminated.and Achieves a uniform compression seal around the entire seat.
The traditional hard seal butterfly valve sealing performance is not guaranteed, and the leakage amount is large. In order to change this situation, the hard seal butterfly valve has been through many iterations, and a triple eccentric butterfly valve (also known as triple offset butterfly valve) has been invented.
Triple eccentric butterfly valves are characterized in that the high temperature and corrosion resistant alloy material is welded on the sealing surface layer of the valve seat, and the multi-layer soft sealing ring is fixed on the butterfly plate. This process makes the triple eccentric butterfly valve more resistant to high temperature, high pressure and corrosion compared with traditional butterfly valves.ensure perfect tightness in steam, gas, chemical, petrochemical and cryogenic applications.
Specifically, the benefits of using a triple eccentric structure for a hard-seal butterfly valve are:
The unique design of the triple eccentricity makes the metal hard seal start more easily. When the valve is opened and closed, there is no friction between the disc and the valve body during the rotation process. When the valve is closed, the torque of the transmission mechanism can increase to provide compensation. This greatly improves the sealing performance of the triple eccentric butterfly valve and prolongs the service life of it.
These valves are available in wafer type, lug type and double flanged execution.
Payment Term | L/C, T/T, Western Union,Paypal |
Delivery Time | 15 - 30 days after payment |
Seaport | Shanghai Or Ningbo China |
The 3rd Inspection | Available |
Sample | Available for Triple Eccentric butterfly valve |
Warranty Period | 18 months after shipments and 12 months after installed |
Valve Test | 100% quantity tested before delivery |
Packing | Plywood Case for Triple Eccentric butterfly valve |
MOQ | 1 Pc for Triple Eccentric butterfly valve |
Nameplate | According to customer for Triple Eccentric butterfly valve |
Color | According to customer for Triple Eccentric butterfly valve |
Shipment | By sea,By Air ,By Express,and door to door available |
OEM/ODM Service | Available |
For almost 10 years, RXVAL has continually committed itself to offer the best Triple Eccentric butterfly valve products to meet a wide range of applications and requirements.
As an valve manufacturer, RXVAL has your perfect Triple Eccentric butterfly valve solution. Our success in the valves industry is attributed to our customer-centric team of sales personnel, engineers, workers and after-service staff that are collectively committed to providing quality products at a price you would come to expect.