The precise selection of rotary pumps directly determines the reliability and efficiency of industrial processes, requiring systematic consideration of these core dimensions:
（Bonve Pump Industry Rotor Pump Selection Guide）
I. Fluid Properties
• Media Attributes: Clarify the physical state (liquid/paste/solid-mixture), viscosity, temperature range, corrosiveness, and sanitary grade of conveyed materials. High-viscosity media (e.g., resins, syrups) prioritize positive displacement rotary pumps; corrosive fluids require special alloy materials.
• Purity Requirements: For particle-containing fluids, assess solid particle size and hardness to avoid jamming risks; hygienic dead-zone-free designs are mandatory in food/pharmaceutical fields.
II. Process Parameters
• Flow Rate: Base selection on peak process flow while accommodating regular transfer volumes, ensuring pump capacity covers extreme conditions.
• System Pressure: Calculate total pipeline resistance (including vertical lift, fitting losses, terminal pressure), reserving reasonable pressure margins during selection to handle fluctuations.
III. Operational Environment
• Installation Conditions: Determine pump configuration (horizontal/vertical/in-line) based on spatial layout (fixed/mobile), suction lift, and inlet/outlet orientation.
• Operating Modes: Continuous or intermittent operation dictates mechanical seal cooling solutions; explosion-proof sites require certified motors.
• Environmental Factors: Altitude and temperature affect NPSH; high-temperature media need specialized cooling designs.
IV. Special Scenario Adaptation
• Sanitary Industries: Utilize polished stainless steel flow paths and non-toxic seals to meet CIP/SIP cleaning requirements.
• High-Viscosity Applications: Prioritize self-priming capability and shear sensitivity—cam-type and trilobe rotary pumps excel here.
• Gas-Liquid-Solid Mixtures: Employ flexible rotors or large-chamber designs to prevent airlock and wear. (Bonve provides custom solutions for specific conditions.)
V. Four-Step Implementation Path
Preliminary Type Screening: Exclude non-positive-displacement pumps based on media properties; confirm rotary pump subtype (gear/screw/cam-type, etc.).
Parameter Calibration: Screen pump series covering performance curves using peak flow and system pressure.
In-Depth Verification: Check NPSH, material compatibility, and seal type (single/double mechanical seal).
Scenario Optimization: Finalize model selection for additional requirements like explosion-proofing, sanitary certification, or VFD control.
Selection essence lies in precise demand-technology alignment: Rotary pumps excel in flow rigidity, media adaptability, and sanitary safety but require vigilance against dry-running and particle sensitivity. Professional selection balances theoretical parameters with actual conditions, utilizing virtual simulations or small-scale tests when necessary. If unfamiliar with selection, provide specific parameters for our expert pump selection and quotation services!
Bonve remains committed to the philosophy of "Wholeheartedly Crafting Excellent Rotary Pumps," dedicated to providing global clients with customized transfer and mixing solutions. For technical inquiries, selection support, case references, or collaboration opportunities regarding Bonve rotary pumps, contact us anytime.
Service Hotline: 0574-87588986 13586591794
Official Website: www.bvpumps.com
Business Email: market@bonvepumps.com
We look forward to partnering with you to drive efficiency and innovation in industrial fluid transfer through precision engineering.
