The D371X series worm gear flanged butterfly valve is available in cast iron, cast steel, or stainless steel bodies, combined with a wide selection of disc, stem, and seat materials. It is ideal for water treatment, chemical processing, power generation, marine, and general industrial piping systems.
With a flanged connection and worm gear drive, the valve offers effortless operation, self-locking capability, and smooth 90° quarter-turn control. Sizes range from DN50 to DN600, with pressure ratings PN10-PN16, and customizable configurations are available to meet diverse application requirements.
The D371X worm gear flanged butterfly valve is a high-performance industrial valve designed for medium to large pipeline systems. Its flanged connection ensures structural integrity and reliable sealing under pressure. The worm gear mechanism enables smooth 90° opening and closing, requiring minimal effort while providing self-locking functionality for stable positioning at any angle. This valve is widely used for on-off and throttling service across water, oil, gas, and corrosive media.
Flanged connection for high strength and stability in large-diameter pipelines
Worm gear operation with self-locking capability for effortless and precise control
Wide range of body, disc, stem, and seat materials to suit various media and conditions
Suitable for water, oil, gas, mild corrosives, and highly corrosive applications
Pressure rating PN10-PN16, size range DN50-DN600
| Parameter | Details |
|---|---|
| Model Series | D371X-16Q / D371X-16C / D371X-16P etc. |
| Size Range | DN50 – DN600 |
| Pressure Rating | PN10 – PN16 (10 bar – 16 bar) |
| Connection | Flanged |
| Operation | Worm gear drive |
| Component | Available Materials |
|---|---|
| Body | Cast Iron (16Q), Cast Steel (16C), Stainless Steel 304/316 (16P/16R), etc. |
| Disc | SS304, SS316, PTFE lined, 2507 Duplex, 1.4529, etc. |
| Stem | 45# Carbon Steel, SS304, SS316, etc. |
| Seat / Liner | EPDM, NBR, PTFE, etc. |
Water, oil, gas
Mild corrosive media
Acids, alkalis, and highly corrosive media (depending on material selection)
Water treatment and municipal water supply
Chemical and petrochemical industries
Power generation and energy sector
Marine and offshore engineering
HVAC and industrial cooling systems
Environmental engineering and wastewater treatment
Material combinations can be tailored to specific operating conditions, including body, disc, stem, and seat options. For special requirements such as high corrosion resistance, extreme temperatures, or abrasive media, please contact us for professional selection assistance.
