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By certification 
Detachable and integrally forged valve seat, replaceable integrated butterfly plate seal ring design, will not cause the whole machine to report fees due to seal wear problems; the whole machine can be completely disassembled and reassembled on site, that is, every accessory can be on-site Maintenance and replacement can reduce the long-term use cost of the product.Multi-eccentric design makes the sealing surface frictionless, thermal expansion and contraction are more uniform, and the application range is wider.
Design Feature+
In response to the needs of different working conditions, we have developed a quintuple eccentric metal to metal bi-direction butterfly valve on the basis of triple eccentricity.
Four-eccentric butterfly valve with four eccentric structures;
The first one is eccentric; the center of the true circle is eccentric, and every tangent of the sealing ring perpendicular to the centerline of the channel is a true circle, and the center of each facet is eccentric to the centerline of the channel.
The second one is eccentric; the shaft is eccentric, the sealing surface is placed on the side of the valve stem, and the sealing surface is eccentric to the valve stem,
The third is eccentric; the diameter is eccentric, the valve stem is on one side of the center line of the valve channel, and the valve stem is eccentric to the center of the channel.
The fourth eccentric, the top of the elliptical cone is eccentric, and the circumferential line of the perfect circular sealing ring is extended to form an elliptical cone, and the top of the elliptical cone is eccentric to the center of the channel.
The Fifth eccentricity;Quadruple offset bevel section of extended cone from oval circle, positive circle sealing ring.
Design Standard+
· Design: API 609
· Face to face: API609 / ISO5752-20 / ISO5752-13 / DIN F4 /EN558
· Flange end: ASME B16.5 / ASME B16.47 / EN1092-1 / GOST 12815 / Gost 33259 /MSS-SP44
· Butt-welding end: ASME B16.25
· Test: API598
· Fire safe: API607 / API6FA
Technical Specification+
· Size: 2”~104”(DN50~DN2600)
· Class: 150LB ~ 2500LB / PN6 ~ PN420
· Connection: Double flange / Butt weld / Lug / Wafer
· Operation: Worm Gear / Pneumatic actuator / Electric actuator
· Temperature:-196~900℃
· Application: Direct heating / Iron and steel smelting / LNG / Power plants / crystalline particles / powders / mucus ect various harsh working conditions
Material Option+
· Body&Disc: Carbon steel(WCB,LCB)
· Stainless steel(CF8,CF8M,CF3,CF3M) /
· Duplex stainless steel(4A,5A,6A) /
· Hastelloy alloy(N-12MV,CW-12MW,CW-2M) /
· Inconel alloy(CY-40,CW-6MC) /
· Monel alloy(M35-1) /
· Aluminium bronze alloy(C95400,C95500,C95800,AB2C)
· Stem: SS420 / 17-4PH / F51/ F53 / XM-19 / Monel-K500 / Inconel-625 / Hastelloy-276 / Titanium
· Disc Sealing: / F304+ Nitriding / F304+STL / F316+ Nitriding / F316+STL
· Body Seat: / F304+ Nitriding / F304+STL / F316+ Nitriding / F316+STL
Aplication in+
Mucus with granular fluid.
Solid powder.
Crystallization fluid.
Liquid high temperature difference curing fluid.
Fiber size.
High temperature dissolves salt.
Bi-direction heating network butterfly valve.
Cryogenic, LNG butterfly valve.
High pressure 2500lb butterfly valve.
High temperature 1100 ℃ butterfly valve.
Explosion proof, fireproof and antistatic butterfly valve.
Special structure butterfly valve for heat preservation and purging
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