As a high performance lug butterfly valve manufacturer and integrated supplier, Waits was founded in the US in 1994, with production bases in Tianjin and Wenzhou, China. With rich industry experience, we can provide you with high-quality products and services. Our high performance lug butterfly valve can be used in the air separation system of petrochemical projects, especially popular in Russia and the Middle East.
Double Eccentric Structure Design
When the valve opens, the eccentric disc quickly moves away from the seat sealing surface, resulting in only short contact between the disc and the seat sealing surface. This design prolongs the lifespan of the valve.
Implementation Standards
Design Standard | API 609, EN 593, GOST |
End Standard |
ANSI B16.5 CL. 150LB AS 2129 Table D and E BS 10 Table D and E ? MSS SP44 CL. 150LB AWWA C207 150LB ISO 2531 PN10 and PN16 ISO 7005 , PN10 and PN16 |
|
LUG |
Inspection & Test | API 598, EN 12266-1, GOST |
Face to Face | API 609, EN 558, ASME B16.10, GOST |
Top Flange | ISO 5211 |
Application
Size | 3"-80", DN80-DN2000 |
Pressure Rating | Class 150-600, PN16-PN40 |
Operating Temperature | Soft Seat: -29~200℃, Metal Seat: -29~450℃ |
Drive mode | Turbine, pneumatic, electric |
Operating Environment |
Ballast and bilge system Chemical processing Desalination plants,Drilling rigs,Drinking water Dry powder,Food and beverage,VPSA Gas plants HAVC Mining industry,Paper industry,Sand handling,Seawater,Sugar industry Thermo technical water treatment Waste water |
Operator | Lever, Gear, Electric, Pneumatic, etc. |
Body Material |
Carbon Steel, Stainless Steel, Duplex Stainless Steel, Alloy Steel, Monel, AI Bronze, etc. |
DISC | Stainless Steel AL-Bronze |
STEM | 17-4PH XM-19 Monel K500 |
SEAT | VITON PTFE/RPTFE/PPL/PEEK |
Performance Advantages
1. Long service life: Special design can effectively protect the valve seat ring from wear and erosion.
2. Reliability: Double eccentric design ensures efficient sealing performance and low torque.
3. Easy replacement: Just use the repair kit and follow the correct steps to quickly replace the valve seat and packing in a few minutes.
4. Easy maintenance: Made of corrosion-resistant materials, no downtime, lubrication and maintenance are required.
5. Bidirectional pressure seal, no flow direction restrictions during installation.