DN15-DN80 Cast Iron Pneumatic Diaphragm Pump QBK
Head Range：0-70 m
Inlet/Outlet Range：DN15-DN80
Product Features: Side exit, top exit
Core Advantages of the Diaphragm Water Pump
Dual Diaphragm Isolation Technology
PTFE/Nitrile diaphragms completely isolate the medium from the pneumatic system, eliminating leakage risks for toxic chemicals .
Dry-Run Protection
Automatically stops operation when fluid supply is interrupted, preventing diaphragm damage and extending service life.
High Self-Priming Capacity
Draws liquids from underground tanks or long pipelines without priming.
Corrosion Resistance
Fluoroplastic-lined components withstand strong acids and alkalis .
How Does a Diaphragm Pump Work?
Compressed Air Distribution
Discharge Phase: Compressed air presses one diaphragm, forcing fluid through the outlet valve.
Suction Phase: The opposing diaphragm retracts, creating a vacuum to draw in new fluid.
Unidirectional Flow Control
Ball or plate check valves ensure continuous one-way fluid transfer.
Adjustable Flow Rate
Regulate flow by controlling air pressure to meet varying process demands.
Key Applications of the Pneumatic Diaphragm Pump
Oil & Gas
Safe transfer of crude oil, diesel, and refinery waste (e.g., toluene, solvent oil).
Mining & Underground
Drainage of coal slurry and methane-laden wastewater in mining tunnels.
Nuclear & Natural Gas
Coolant circulation in nuclear facilities and condensate transfer in natural gas fields.
Emergency Scenarios
Functions as a Diaphragm Water Pump for urban flood control or industrial sewage emergencies.
Service & Support
Precision Demand Matching
Free on-site analysis for customized flow, pressure, and piping solutions.
Rapid Delivery
Modular design reduces lead time by 30%, with expedited processing for urgent projects.
Flexible Warranty
1-year full machine warranty, 2-year extended coverage for non-standard parts, and 2-hour fault response.
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