Concentric Butterfly Valve Collection
- Resilient seated design
- Bubble-tight shutoff
- Low torque operation
- Cost-effective solution
- Compact lightweight body
- EPDM/NBR seat options
- Lug/wafer configurations
- ANSI flange standards
- Easy installation
- Wide fluid compatibility
Main functions and technical parameters of the product
MeiDe Valve producesConcentric Butterfly Valve concentric design ensures reliable bi-directional sealing with a flangeless ISO 5211-compliant body. Key benefits:
- Multi-Material Adaptability: EPDM/FKM/PTFE seats + 316SS discs for -40°C~180°C chemical/pneumatic systems.
- Gasket-Free Seal: Wide flange face (ANSI 150LB) eliminates gaskets, reducing 25% installation time.
- Quick 90° Operation: <1s shutoff with low-torque gear (<10Nm) vs heavier ball valves.
- Zero-Leakage Stem: Integral 17-4PH stainless stem with live-loaded packing (≤100ppm per ISO 15848-1).
- Compact & Lightweight: 60% weight reduction vs DN200 ball valves. Ideal for HVAC, water treatment, and food processing pipelines.
| Size Range | 2″-40″(50mm-1000mm) | Body Material | Carbon Steel,Stainless Steel，Nickel Aluminum Bronze,alloy steel,etc |
| Temperature Range | -40Â to 180 degree | Stem Material | Staniless Steel |
| Pressure Ratings | PN6-PN16,150psi | Body Style | Wafer, Lug and Double
Flanged,Butt Welded |
| Design Standard | ASME B16.34, Â API 609 | Flange Standard | ASME B16.5,
EN 1092,GOST 33259 |
| Testing Standard | EN12266-1,API598,
ISO 5208 |
Certifications | CE,EAC,SIL3,API 607,API 609,
ISO 19001 |
| Face to Face | ISO 5752,API 609,
MSSÂ SP-68, ASME B16.10,EN558-1 |
Fugitive Emissions | ISO 158484-1 |
| Operation | Wench,Worm Gear, Electric, Pneumatic,etc | Seat Material | SS+Graphite |