The Loose-Liner Butterfly Valve is a high-performance industrial flow control solution engineered for versatility and durability. Designed to handle a wide range of media including water, oil, and gas, this valve combines a robust structural design with a flexible liner system to ensure leak-proof sealing and exceptional operational reliability across various industrial environments.
Compliant with stringent international standards such as API 609 and ASME B16.34, our butterfly valves are manufactured using premium materials to withstand extreme temperatures from -29℃ to 150℃. With a wide size range from 2" to 48", these valves provide a scalable and efficient solution for complex piping systems, ensuring optimal flow regulation and minimal pressure drop.
| Size Range | 2" ~ 48" | Pressure Rating | PN6, PN10, PN16, PN20, 200WOG, 125LB, 150LB, JIS 5K-20K |
|---|---|---|---|
| Temperature | -29℃ ~ 150℃ | Design Standard | API 609, ASME B16.34 |
| F-to-F Dim. | API 609, ASME B16.10, BS EN 558 | Connection | ASME B16.5, EN 1092, JIS 5K-20K, BW, RTJ |
| Body Material | ASTM A126, A536, A216 WCB, A395 | Disc Material | ASTM A536, A395, CF8, CF8M, Al-Bronze, DSS F51/F53/F55 |
| Stem Material | 13CR, SS304, SS316, DSS F51-F55, XM-19, 17-4PH, Inconel 718 | Seat Material | EPDM, NPR, VITON |
Equipped with an anti-blow out stem design to prevent accidental ejection and ensure operator safety.
High-grade alloys and specialized coatings minimize wear and tear, reducing the frequency of replacements.
Wide range of customizable materials including Duplex Steel and Inconel for corrosive environments.
Strict adherence to API 598 and API 6D inspection norms ensures zero-leakage performance.
Available with lever or gear unit operators to suit different manual or automated control needs.
100% hydraulic shell and seal tests, plus DPT/RT testing to guarantee structural integrity.
100% chemical and mechanical testing for every heat number of raw material used.
Full DPT testing on all castings, with optional MT, UT, and RT for critical components.
100% hydraulic shell/seal tests and low-pressure air tests for absolute reliability.
Strict adherence to API 598 and API 6D inspection and approval standards.
Efficient shipping and detailed documentation for seamless global delivery.
Comprehensive after-sales service including spare parts and maintenance manuals.
| Feature | Standard Valves | Savvy Valves Solution |
|---|---|---|
| Service Life | Short-term operational | Minimum 12 months guaranteed |
| Maintenance Cost | High due to frequent failure | Low with discounted spare parts |
| Material Grade | Basic carbon steel | Premium alloys (Inconel, DSS, etc.) |
| Installation Risk | High leakage probability | Zero-leakage via 100% hydraulic test |
| After-Sales Support | Limited or no support | Free parts & tech support in warranty |
We offer a comprehensive range of materials including ASTM A216 WCB for bodies, and CF8/CF8M or Duplex Steel (F51-F55) for discs and stems to ensure compatibility with various corrosive media.
Our valves are designed based on API 609 and ASME B16.34, with face-to-face dimensions following API 609, ASME B16.10, or BS EN 558 depending on the order.
Every casting undergoes 100% DPT testing. Additionally, we provide MT or UT testing, and RT is available upon request to ensure no internal defects exist.
The valves are suitable for temperatures ranging from -29℃ to 150℃ and support various pressure ratings including PN6 to PN20, 200WOG, and 125LB to 150LB.
We provide a minimum 12-month service life guarantee. During this period, non-human induced damages are replaced free of charge, and we provide free spare parts and maintenance instructions.
Yes, we offer both Lever and Gear Unit operators to ensure the valve can be operated easily and precisely according to your specific application requirements.
English