DIAPHRAGM PUMP SOLUTIONS
What is a Diaphragm Pump?
A diaphragm pump moves liquid by flexing a diaphragm to change the volume of a pumping chamber, with valves directing inlet and outlet flow. HENVO lists QBY air-operated, pneumatic, double-diaphragm, slurry and stainless-steel products, alongside DBY listings including an explicitly electric model. The buyer must confirm the drive and exact configuration before comparing pressure, suction conditions or site utilities. Liquid compatibility depends on all wetted components, including the diaphragm and valves, rather than the casing description alone.
QBY air-operated and DBY electric listings provide different drive options for transfer enquiries. Specify the required flow, discharge conditions and available site utilities.
QBY Series Diaphragm Slurry Pumps identifies a slurry application. Solids size, concentration and abrasiveness require confirmation for the actual valves and diaphragm arrangement.
The QBY stainless-steel listing supports enquiries where wetted construction matters. Check the diaphragm and valve materials as well as the casing against the liquid and temperature.
Selection depends on the following operating conditions. Keep the units and pressure reference explicit when sending your requirement.
Distinguish explicitly air-operated QBY products from the DBY Electric Diaphragm Pump. Confirm any listing whose drive information is incomplete or inconsistent before specifying utilities.
State required flow, inlet conditions and discharge head or pressure. A maximum air-pressure field is not a liquid-duty performance curve.
For an air-operated proposal, provide available air pressure and capacity. For an electric proposal, state supply voltage, frequency, control needs and operating schedule.
Identify liquid composition, concentration and temperature. Request confirmation of the casing, diaphragm, valves and seals for that medium.
For slurry or thick liquids, provide viscosity, solids concentration and particle size. Do not extend a slurry-labelled product’s intended use to every diaphragm listing.
For continuous chemical-liquid transfer, compare Chemical Pump configurations when their materials and duty are suitable. If suction arrangement is the main selection issue, review Self-Priming Pump options separately.
Prepare liquid identity, concentration, temperature, viscosity and any solids, with required flow and discharge conditions. Include minimum source-liquid level.
Name the product and confirm electric or pneumatic drive. Provide the relevant utility supply; query any air-pressure entry attached to a DBY listing before using it as a specification.
Send wetted-material requirements, pipe connections, installation layout and operating hours. Ask for the proposed configuration’s performance information rather than extrapolating across QBY and DBY.
No: the range includes explicitly pneumatic QBY products and a DBY Electric Diaphragm Pump. Confirm the exact listing’s drive; a shared diaphragm-pump category does not establish its energy source.
An air-pressure value describes a drive-side condition and does not define the delivered flow at your discharge pressure. Request the selected configuration’s performance data and provide the required liquid operating point.
Begin with the QBY slurry listing and provide solids size, concentration, abrasiveness and viscosity. Confirm the valve passages, diaphragm and wetted materials before accepting that configuration.
No. The diaphragm, valves, seals and other wetted components must also be suitable for the liquid, concentration and temperature.
Confirm the drive and the meaning of that field for the quoted model before specifying utilities. Use the actual product record as a reference for the enquiry, not a basis for assuming all DBY and QBY configurations are equivalent.
Send your liquid properties, required flow and pressure, installation details and available drive supply.