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Chemical Membrane Pump Metering Dosing Pump Acid Metering Pump Model: 00508

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  • Shipping Timeframes: All orders are processed within 2-5 business days (excluding weekends and holidays). After your order has been processed, the estimated delivery time is before 20 Dec, 2025, depending on customs, Please note that due to high demand, some items may experience longer shipping times, which will be communicated at order confirmation email.
  • Order Processing Time: Please allow 2-5 business days for us to process your order before it is shipped . Orders placed after 16:00 on Fridays, or during weekends and public holidays, will begin processing on the next business day. Processing times may be extended during peak seasons or sales events.
  • Manufacturing Time: Some products needs manufacturing time, the manufacturing process will take approximately 10-30 business days depending on the product. This timeframe may vary depending on the complexity of the product and current demand. but this will be communicated with you during order confirmation.
  • Returns and Exchanges: We offer a 30-day return policy for most items. If you are not completely satisfied with your purchase, you may return it within 30 days of receipt for a refund or exchange. Items must be unused, in their original packaging, and accompanied by proof of purchase. Return shipping costs are the responsibility of the customer, unless the item was damaged or defective upon arrival.
1. What is the flow rate range of this Chemical Membrane Metering/Dosing Pump?

The Aldous metering pump specified here has a flow rate range of 0.48–20.00 L/H according to the product specification. If you require higher flow rates, please contact the supplier — other models in the product line may support larger capacities.

2. What is the maximum discharge pressure of the pump?

The pump's pressure range is listed as 1.0–8.2 bar, with 8.2 bar being the maximum discharge pressure for the specified model.

3. What type of pump head does it use and why is that important?

It uses a high-performance 'PH type' pump head designed for durability in chemical dosing applications. This design helps improve resistance and longevity when handling aggressive liquids such as acids, but compatibility should still be confirmed for each chemical.

4. Can this pump be used for acid dosing and other corrosive chemicals?

Yes — the pump is described as an acid metering pump and is intended for chemical liquids. However, always verify chemical compatibility with the pump head and wetted materials for your specific chemical and concentration before use.

5. What are the physical size and weight of the pump and packaging?

The single package size is 40 x 30 x 20 cm. The pump weight is approximately 4 kg, and the single gross weight (packaged) is listed as 8.000 kg.

6. What applications is this pump suitable for?

Typical applications include water treatment, chemical transfer, accurate dosing of acids and other chemical liquids, laboratory and research dosing, and industrial cleaning/maintenance tasks.

7. Is this a diaphragm (membrane) style metering pump?

Yes. This is a chemical membrane (diaphragm) metering/dosing pump, which uses a membrane to isolate the drive mechanism from the process fluid.

8. How accurate is the dosing? What is the metering precision?

A specific numerical accuracy is not provided in the supplied specification. Dosing precision depends on the model and operating conditions; please contact the supplier for calibration/accuracy data for the exact model you plan to use.

9. What maintenance is required and are spare parts available?

Routine maintenance typically includes inspecting and replacing the diaphragm, check valves, and tubing as needed and checking for leaks. Spare parts availability (diaphragms, seals, valves) should be confirmed with the supplier or authorized service center.

10. Does the product come with quality assurance documentation?

Yes. The product listing indicates it includes a video outgoing inspection and a machinery test report for quality assurance.

11. What electrical power or control options are available?

Electrical requirements and control options are not specified in the provided data. These details (voltage, frequency, motor type, speed control, remote control/interfaces) vary by model — contact the manufacturer or supplier for model-specific electrical and control information.

12. How should I select the correct model for my application?

Select a model based on required flow rate (L/H), discharge pressure (bar), chemical compatibility, and any control or installation needs. Provide the supplier with application details (fluid type/concentration, temperature, required flow/pressure, and duty cycle) for assistance.

13. What accessories are included with the pump?

The specification does not list standard accessories. Typical deliveries may include the pump unit and test documentation; fittings, tubing, foot valves, or mounting hardware may be optional. Confirm included accessories with the seller before purchase.

14. Is installation complicated? Are there mounting recommendations?

Installation requirements depend on the site and model. General recommendations: mount on a stable surface, secure fittings and tubing to avoid strain, ensure venting/drain provisions as needed, and follow the manufacturer's installation manual. For critical applications, have a qualified technician perform installation.

15. What warranty and after-sales service are available?

Warranty and after-sales service terms are not provided in the supplied specifications. Contact the supplier or Huamo (brand) for warranty duration, service agreements, and authorized service centers in your region.

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