Technical Specifications
| Size Range NPS 2"-96" / DN50-2400mm | Main Material Carbon steel, Stainless Steel, Aluminum Bronze, Duplex steel etc.
(Other materials are available under request.) |
| Temperature Rating -196 ~ +550°C | Stem Material Stainless steel |
| Pressure Rating I.0Mpa ~ 25.0Mpa 150LB ~ 1500LB | Leakage Level Zero Leakage |
| Disc Material Carbon Steel, Stainless steel, Duplex steel etc. | Flange Drilling ASME B16.5, EN1092, GOST 33259, BS etc. |
| Seat Material Soft Seat: PTFE, EPDM, NBR etc. Metal Seat: SS+Graphite | Body Style Double Flanged, Wafer, Lugged, BW |
| Design Standard ASME B16.34, API 609 | Test Standard API 598, EN12266-1, ISO 5208 |
| Face to Face API 609,ISO 5752,MSS SP-68,ASME B16.10, EN558-1 | Operation Wrench, Worm Gear, Electric, Pneumatic,etc |
| Application Bulk liquid storage, oil & gas, LNG storage & transportation, steam distribution systems, power generation, geothermal steam, sugar & ethanol, pulp & paper liquor, refining, chemical processing, water & wastewater, air separation, cryogenic services. |
| Other The carefully selected materials and contemporary design make our butterfly valve highly recognized. If our butterfly valve cannot meet your choice, we can provide you with special made. |
Chief Features
The replaceable seat and seal ring system extends the overall service life of each Lixin valve, thus minimizing downtime without expensive field maintenance or full replacement
Two way zero leakage seal
The unique three eccentric structure makes our valve stable, reliable and easy to maintain
Compared with gate, stop or ball valves of the same size and pressure class, Lixin butterfly valve saves space and weight, and reduces the installation and maintenance cost to the greatest extent.
High strength material stem, anti fly out stem and integrated stem design make the valve more stable and suitable for more operation modes
Live-loading of packing and low leakage packing (meet ISO 15848-1) makes the stem seal safer and suitable for more working conditions
The Triple-offset Geometry
Offset 1:
The centerline of rotation axis/stem and seat deviate from each other for a certain distance to ensure the integrity of the sealing surface;
Offset 2:
The centerline of rotation axis/stem and body deviate from each other for a certain distance to reduce the friction between the sealing components when open and close the valve.
Offset 3:
The centerline of valve body and conical seat sealing face deviate from each other for a certain angle to ensure the sealing ring of the disc can be separated or touched with seat rapidly so that friction and squeeze will not exist between the sealing components.
To understand how geometric configurations alter flow reliability, read our technical analysis on double offset vs triple offset butterfly valves.
Product Benefits
Friction-Free Sealing Geometry: The innovative 3 offset butterfly valve design eliminates contact friction between the seat and ring to extend service life.
High-Security Anti-Blowout Stem: Built with an integrated, high-strength stainless steel stem that prevents blowout accidents under extreme pressure surges.
ISO-Compliant Low Emissions: Features a live-loaded, low-leakage packing layout certified to ISO 15848-1 standards for ultimate environmental safety.
Field Replaceable Components: Incorporates a replaceable seat and sealing system, which minimizes active production downtime without full body replacements.
Why Choose Lixin Triple Eccentric Butterfly Valve?
Advanced Lean Manufacturing: As specialized triple eccentric butterfly valve manufacturers, we optimize accuracy using modern CNC machines and machining centers.
Extensive Size Ranges: Provides versatile structural styles (Wafer, Lugged, Flanged, BW) spanning across dimensions from NPS 2" to 96".
Broad Media Compatibility: Offered in premium materials like Aluminum Bronze, Duplex steel, and carbon steel to resist severe wash-resistant wear.
FAQs
1. What defines a high-performance triple eccentric butterfly valve?
A triple eccentric butterfly valve incorporates three distinct offsets. These angles eliminate seating friction during cycling, allowing for reliable bi-directional shutoff within highly corrosive or extreme-temperature processing media pipelines.
2. How does a triple offset butterfly valve achieve zero leakage?
The advanced geometry of a triple offset butterfly valve ensures that the sealing ring contacts the conical seat uniformly only at absolute closure, creating an immediate, bubble-tight seal without squeezing.
3. What makes the 3 offset butterfly valve design friction-free?
An angular third eccentric offset in the 3 offset butterfly valve shifts the contact profile. This arrangement lets the seat ring disengage instantaneously upon rotation, preventing premature component rubbing.
4. Why are structural offsets critical in a triple eccentric butterfly valve design?
The precise triple eccentric butterfly valve design uses offset axes to shift the disc centerline away from the sealing plane. This protects seal surface integrity during fast automated actions.
5. How do procurement teams evaluate high-quality triple eccentric butterfly valve manufacturers?
Industrial buyers select premium triple eccentric butterfly valve manufacturers by verifying advanced CNC manufacturing centers, lean production certifications, low-emissions tracking, and pressure test logs matching API 598 standards.
6. What standard sizing ranges apply to this triple eccentric butterfly valve?
This heavy-duty triple eccentric butterfly valve supports system pipelines ranging from NPS 2" up to 96" (DN50 to DN2400mm), ensuring adaptable flow management across vast infrastructural networks.
7. Can a triple offset butterfly valve handle intense cryogenic temperatures?
Yes, our specialized triple offset butterfly valve models feature high-grade structural alloys capable of maintaining tight physical containment across volatile working environments ranging from -196℃ to +550℃.
8. How does the triple eccentric butterfly valve design minimize operational costs?
The triple eccentric butterfly valve design allows facilities to source smaller, economical actuators while reducing physical wear on internal parts, limiting expensive field replacements and unexpected downtimes.
9. Why is an integrated stem utilized in the 3 offset butterfly valve?
The 3 offset butterfly valve employs an integrated, high-strength stainless steel stem with an anti-flyout safety mechanism. This delivers rigid structural stability across manual, pneumatic, or electric operation modes.
10. What emission standards does the triple eccentric butterfly valve design satisfy?
Our premium triple eccentric butterfly valve design uses a live-loaded packing layout that actively meets strict ISO 15848-1 low-leakage specifications, protecting personnel from volatile fugitive compound releases.
Request a Quote
