Auto Double-Hammer Counterweight Flap Ash Valve
HSX Auto Double-Hammer Flap Ash Valves utilize dual counterweighted balanced flaps arranged in series. Relying entirely on material gravity and adjustable counterweights, the dual flaps open and seal alternately, delivering non-powered zero-airlock continuous ash discharge from negative pressure baghouses and cyclones.
Model Series & Engineering Parameters Zero-Power Airlock
| Model Series | Flange Size (mm) | Discharge Cap (m3/h) | Working Temp (°C) | Counterweight Qty | Flap Seal Type |
|---|---|---|---|---|---|
| DHF-200 | 200 x 200 mm | 3 – 6 m3/h | 200°C | 2x Cast Iron Hammers | Fluororubber / Silicone |
| DHF-300 | 300 x 300 mm | 8 – 15 m3/h | 250°C | 2x Adjustable Hammers | High-Temp Flexible Alloy |
| DHF-400 | 400 x 400 mm | 18 – 30 m3/h | 300°C | 4x Dual Lever Arms | Heat-Resistant Graphite |
| DHF-600 | 600 x 600 mm | 35 – 65 m3/h | 300°C | 4x Heavy Counterweights | Metal-to-Metal Hardened |
| DHF-800+ | 800 x 800 mm | Up to 120 m3/h | 350°C | Custom Multi-Hammer | Hard Alloy Stellite Seat |
Ordering Nomenclature Guide: DHF - [Flange mm] - [Temp Code] - [Body: Cast Iron/Steel] - [Counterweight Spec].
Zero-Power Gravitational Airlock Operation
Continuous self-sealing discharge without electrical motors or wiring.
100% Zero-Energy Operation
Operates entirely on material gravity column weight, saving 100% electrical drive power and wiring.
Alternating Air-Lock Sealing
Top and bottom flaps open alternately, preventing ambient air ingress into negative pressure baghouses.
Field-Adjustable Counterweight Levers
Lever arm hammer positions adjust easily to match various ash bulk densities and vacuum levels.
Wear-Resistant Hardened Valve Seat
Chrome-moly alloy valve seats resist high-velocity abrasive fly ash erosion.
Proven in Severe Plant Environments
Delivering high thrust and zero-drift actuation across critical heavy industrial facilities.
Baghouse Dust Collectors
Fabric filter hopper bottom continuous dry fly ash discharge.
Cyclone Separators
Preheater cyclone downpipe ash discharge without false air intake.
Coal Mill Pulverizers
Pyrite trap ash box gravity discharge.
Biomass Boiler Economizers
Flue gas fly ash hopper bottom airlock cutoff.
Request Technical Quotation & Sizing Proposal
Submit your required parameters, operating duty, or project drawings for Auto Double-Hammer Counterweight Flap Ash Valve. Our export engineering team will review your specifications and provide an official quotation within 24 hours.