Asphalt Pump Selection Analysis: KCB3800 Gear Pump Compatibility Assessment and Optimization Recommendations

 

I. Core Parameter Compatibility Analysis

 

Flow and Pressure Requirements

Required parameters: 208 m³/h flow, 0.81 MPa pressure.

KCB3800 parameters: 228 m³/h flow (meets requirements with a margin), 0.6 MPa discharge pressure.

Conclusion: The flow rate is fully matched, but the pressure is lower than the required value (0.6 MPa < 0.81 MPa). Compensation is required through the following methods:

System design adjustments: Reduce pipeline resistance (e.g., shorten pipe length, increase pipe diameter, reduce elbows) to reduce system pressure drop.

Selection Correction: If the pressure cannot be met through system optimization, select a higher pressure model (e.g., KCB6300, 1.45 MPa pressure).

Media Temperature and Viscosity

Required parameters: Media temperature 140–160°C, viscosity 76 cSt.

KCB3800 Parameters: The media temperature range covers the required range, and the viscosity adaptability is strong (the gear pump can handle 5–1500 cSt).

Conclusion: Fully compatible, no additional adjustments required.

Motor and Power Supply

Required Parameters: Three-phase AC 380V 50Hz, IP55 protection level.

KCB3800 Parameters: Explosion-proof motor BT4, 160kW-6P, AC 380V 50Hz 3PH power supply, and a packing seal.

Conclusion: The motor power, voltage, and frequency are all compatible, and the explosion-proof level meets industrial safety requirements.

 

II. Structural and Functional Compatibility

Insulation Design

KCB3800 Configuration: Equipped with a pump head insulation jacket, which allows the use of thermal oil or steam to maintain fluidity.

Requirement Compatibility: Suitable for media temperatures of 140–160°C to prevent asphalt solidification.

Material and Corrosion Resistance

Wetted component material: HT200 (gray cast iron), suitable for non-corrosive asphalt media. Requirements Matching: If the media contains trace amounts of corrosive components, upgrade to stainless steel (such as 304/316L).

Seal Type

KCB3800 Seal: Packing seal, suitable for high-temperature conditions but requiring regular maintenance.

Alternative: If lower leakage rates are required, mechanical seals are available (please confirm whether the supplier offers them).

III. Model Selection Optimization Recommendations

 

Pressure Compensation Solution

System Optimization Priority: Reduce system pressure drop by reducing pipe resistance (e.g., using DN250 pipe and eliminating 90° elbows) so that the KCB3800's 0.6 MPa outlet pressure meets requirements.

Model Upgrade Alternative: If pressure is still insufficient after system optimization, consider the KCB6300 (flow rate 380 m³/h, pressure 1.45 MPa), but consider the cost of excess flow.

Recommended Alternative Models

RCB Series Insulated Pumps: Suitable for high-viscosity media, with a pressure range of 0.8–1.6 MPa and customizable insulation jackets. 3QGB three-screw pump: High-pressure model (pressure up to 6.3 MPa), suitable for long-distance transportation or high-lift applications.

 

IV. Final Selection Conclusion

 

Recommended model: KCB3800 gear pump (system pressure optimization required).

Advantages: Flow matching, strong temperature adaptability, comprehensive insulation design, and low cost.

Risks: Outlet pressure must be compensated through system design, and the supplier must confirm the life of the packing seal at high temperatures.

 

Alternative: KCB6300 gear pump (pressure 1.45 MPa).

Application scenarios: When system pressure drop cannot be optimized, or when a higher pressure margin is required.

 

If you have specific asphalt pump selection and quote requirements, please contact CIXIFM Winny:

Email: sales01@cxflowmeter.com

WhatsApp: 008618049841995