Lever Concentric BV
Lever Operated Double Stem Concentric Butterfly Valve
This concentric butterfly valve adopts a central sealing structure with double upper and lower stems to support the disc. The double stem design ensures balanced stress on the disc, avoiding deflection and leakage during long-term operation. Equipped with a manual locking lever, it can be manually opened/closed and fixed at any opening position without extra power supply.
- Soft rubber seal (EPDM/NBR) achieves bubble-tight shut-off for normal-temperature water, sewage and gas;
- Working pressure: 0.6MPa~1.6MPa, operating temperature: -20℃~120℃;
- Body materials: Ductile iron, carbon steel, stainless steel optional;
- Widely used in municipal water supply, sewage treatment, HVAC and fire protection pipelines.
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