A2VK Metering Pump
2 week ago
Product details
I. Product Overview
The A2VK Metering Pump is ahigh-pressure axial piston variable-displacement pumpspecifically designed for the conveyance and metering of polyurethane (PU) liquids. It belongs to the category of specialized positive displacement pumps. Its core function is to achievehigh-precision flow regulationthrough mechanical or hydraulic control, ensuring that media such as isocyanates and polyols are delivered in specific proportions. It is widely used in polyurethane foaming equipment, chemical processing, hydraulic systems, and other fields.
II. Key Features
1. High-Precision Metering
• Flow regulation accuracy can reachwithin ±1%, enabling stepless adjustment via manual knobs or frequency converters to meet stringent process requirements.
• Equipped with a precision measurement dial for intuitive operation, ensuring consistent delivery volumes.
2. High-Pressure and Viscosity-Resistant Design
• Rated operating pressure of25 MPa (250 bar), with a maximum pressure capability of up to 315 bar, suitable for high-pressure applications.
• Specifically engineered for high-viscosity media (e.g., polyurethane raw materials), featuring low inlet pressure for smooth conveyance.
3. Reliability and Durability
• Critical components (such as pistons and seals) are paired with special materials compatible with polyurethane raw materials, reducing corrosion risks.
• Dual shaft seal design with buffer fluid interfaces to prevent leaks, ensuring safety and environmental protection.
4. Low Noise and High Efficiency
• Optimized structural design reduces operational noise, enhancing operator comfort.
• High volumetric efficiency ensures efficient energy conversion and reduced power consumption.
III. Technical Specifications
【表格】
Parameter Details
Model Examples A2VK12, A2VK28, A2VK55, A2VK107
Displacement Range 5, 12, 28, 55, 107, 225 cm³/rev
Weight 18–240 kg (varies by model)
Drive Method Hydraulically driven reciprocating
Control Modes Manual knob adjustment, frequency conversion control, automatic signal input (e.g., 4-20 mA)
Applicable Media Polyurethane raw materials (isocyanates, polyols), high-viscosity liquids
Temperature Range -30°C to 450°C (varies by material)
IV. Applications
1. Polyurethane Foaming Equipment
• Used in automotive interiors, insulation materials, home appliance casings, and other foaming processes to precisely control raw material ratios and ensure product quality.
2. Chemical and Hydraulic Systems
• Conveying corrosive or high-viscosity chemical additives, such as corrosion inhibitors, filter aids, and disinfectants.
3. Industrial Mixing Processes
• Multiple pumps operate in tandem to mix various media in specific proportions, meeting complex process requirements.
V. Advantages Summary
• Precise Control: Flow adjustment range of 0–100%, adaptable to diverse process needs.
• High-Pressure and Viscosity Resistance: Breaks through traditional pump pressure limits for stable conveyance of high-viscosity media.
• Safety and Environmental Protection: Dual shaft seal design prevents leaks, protecting operators and the environment.
• Flexible Adaptability: Supports manual, automatic, and remote control with strong integration capabilities.
VI. Selection Recommendations
• Choose a model based ondisplacement requirements(e.g., 12 cm³/rev or 55 cm³/rev).
• Confirm that theoperating pressurematches the application conditions (e.g., 250 bar or higher).
• Prioritize suppliers withISO 9001 certificationto ensure quality and after-sales service.
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Ningbo Hengnuo Hydraulic Drive Co.,Ltd
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