Triple Offset Butterfly Valve
Features
● Friction free design
The use of triple eccentric structure reducing the friction during switching between the sealing surface of the disc and valve body, so that the disc can quickly disengage the valve seat when the triple eccentric butterfly valve is opened or closed.
● Low opening torque
This serial uses the Radial Dynamically Balanced Sealing System,by means of optimized design, the forces undertaken on both sides for the butterfly disc inlet and outlet become approximately balanced so as to effectively lower the valve opening torque.
● Seal ring material
Seal ring can be made of stainless steel plate with graphite/ carbon fiber/ PTFE etc. The main sealing is stainless steel plate, non-metal inter-layer as the assistant one. This structure makes the valve more reliably sealed and the leakage of sealing reach VI class to ANSI B16.104 or A class to ISO 5208. Compare to the rubber asbestos plate material, our adopting material is more wearable, anti-flush, reliable and better for environmental.
● Packing-combined sealing system
RXVAL adopt this structure to ensure valve leakage could meet ≤20ppm at maximum. The dynamic sealing structure is available if necessary, which make the packing sealing under good condition and prolong the free maintenance period of packing.
● Evenly Fixed Structure
Butterfly valve’s sealing ring is fixed with evenly distributed bolts/nuts. Every bolt is precisely located and endure force evenly. This structure eliminates the problems of leakage or loose sealing ring due to uneven force of bolts and nuts.
Advantage
With the triple offset butterfly valve there are three offsets.
Two are placed in a similar position to the double offset butterfly valve, while the third offset is the geometry of the seating surface, creating a type of cone shape of the disc and seat.
This cone angle, along with the two eccentric shaft offsets, allows the disc to seal against the seat with no friction.
This seat design also allows for uniform sealing, and thus a tight shutoff in a metal seat design.
This design is a lower cost, lower torque option (easier to automate), than alternative style metal seated valves.
Triple offsets are generally used in applications similar to gate valves, where a metal seat is required, and tight shutoff and/or quarter turn actuation is desired. Applications like high pressure steam (over 150 PSI), superheated- steam, high temperature gases and oils, high temperature applications are good for this type of valve because a metal seat is required over a soft seat.
The triple offset valve is used in similar industries as the double offset butterfly valve, but in more demanding applications.
More Information
| 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 offset 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 offset butterfly valve |
| MOQ | 1 Pc for triple offset butterfly valve |
| Nameplate | According to customer for triple offset butterfly valve |
| Color | According to customer for triple offset butterfly valve |
| Shipment | By sea,By Air ,By Express,and door to door available |
| OEM/ODM Service | Available |
RXVALcan manufacture the triple offset butterfly valve in accordance with API609. Just feel free to contact us now to get best prices. 10 years of experience. High quality. Big stock. Fast delivery.
