TYPICAL APPLICATIONS
- Chemical dosing and transfer
- Paints and coatings
- Wastewater treatment
- Viscous liquid handling
Request a quote ↗← Industrial Diaphragm Pumps
DBY
Electric Diaphragm Pump
Motor-driven diaphragm arrangement where compressed air is unavailable.
Inquire about this model ↗MODEL / DBY
SELECTION OVERVIEW
Confirm the duty before confirming the model.
Shanghai Shangcheng Pump & Valve Manufacturing Co., Ltd. supplies DBY electric diaphragm pumps with a motor and reduction drive to move the diaphragms. Select the configuration around the required liquid flow, discharge pressure and actual power supply, not simply because compressed air is unavailable. Confirm body, diaphragm and valve-material compatibility with the liquid, concentration and operating temperature.
For an electric diaphragm pump quotation, specify voltage, frequency and phase together with continuous or intermittent operation, starts and stops, and the required control method. Ask for confirmation of the proposed motor and reducer arrangement. Variable-speed operation, hazardous-area suitability and protective devices are configuration requirements to verify, not default features of every DBY pump.
Review normal and maximum discharge pressure, including valve positions and changes in downstream resistance. Do not apply air-pressure adjustment instructions from a pneumatic diaphragm pump to a motor-driven DBY unit. Confirm the permitted operating envelope and suitable overload and system-pressure protection before operation; do not assume the pump can safely run against a closed discharge.
INFORMATION REQUIRED
- Liquid name, concentration, temperature, viscosity and specific gravity
- Solids content, maximum particle size, fibers and abrasive characteristics
- Minimum, normal and maximum required flow; normal and maximum discharge pressure
- Tank levels, suction lift or inlet pressure, and suction-pipe arrangement
- Body, diaphragm, ball and seat material requirements for the actual medium
- Voltage, frequency, phase, control requirements and motor-drive arrangement
- Operating hours, starts and stops, connection requirements, quantity and destination
OPERATING NOTES
- Motor, reducer and overload protection must match the operating duty.
- Body, ball, seat and diaphragm materials must all match the liquid.
- Actual flow falls as discharge pressure and viscosity increase.
KEY DESIGN POINTS
Built around the duty, installation and medium.
Electric drive
Self-priming capability
Motor and speed options
Multiple material combinations
TECHNICAL DOCUMENT
Diaphragm pump series catalog.
Review the QBY, DBY, QBK and related diaphragm-pump range, performance data, material options, dimensions, installation guidance and selection notes.
View or download PDF →Official Shangcheng document · PDF · 10 pagesMODEL INQUIRY
Let us verify the operating point.
Request DBY selection support with the liquid and concentration, temperature, viscosity, solids and particle details, required flow and discharge pressure. Include suction conditions, piping and connection requirements, electrical supply, operating hours, control method, quantity and destination. Before purchase, confirm the proposed motor and reducer, exact wetted materials, permitted operating conditions and any required protection. Use the selected model documentation rather than transferring QBY or QBK pneumatic-pump limits to DBY.
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