Goyen Mecair Threaded Valve VNP220 for Hydraulic Pumps in Industrial Dust Collection Applications

Goyen Mecair 200 Series Threaded Valve – Model VNP220: Detailed Product Introduction

The Goyen Mecair 200 Series VNP220 is a premium, high-capacity diaphragm valve specifically engineered for pulse-jet filter cleaning systems used in industrial dust collectors. Designed and manufactured by Pentair Mecair, this valve represents advanced technology in compressed air pulse systems, ensuring superior efficiency, reliability, and longevity in demanding applications.

As the largest threaded valve in the Mecair 200 Series, the VNP220 features a 2½-inch port size, providing one of the highest airflow rates in its category. It is built to deliver fast, high-energy air pulses required to dislodge dust from filter bags or cartridges, restoring system performance with minimal air consumption. This model combines anodized aluminum construction, stainless steel hardware, and high-quality diaphragms (NBR or Viton), ensuring maximum durability under harsh industrial conditions.

1. Product Overview

The Mecair VNP220 is part of the globally recognized 200 Series, known for its threaded, right-angle diaphragm valves used in reverse pulse-jet dust collector systems. Its 90° body configuration provides a compact layout, while threaded female ports allow easy installation in both new and retrofit systems.

The VNP220 incorporates an integrated solenoid pilot, enabling direct electrical control, while the VEM220 variant can be operated via a remote pneumatic pilot line. Both configurations are designed for rapid response, producing a strong, efficient air pulse that maximizes filter cleaning efficiency.

The VNP220 is suitable for systems operating between 0.5 and 7.5 bar, handling dry, filtered compressed air at temperatures from –20 °C to +80 °C (NBR) or up to +200 °C (Viton). It is ideal for use in environments such as cement plants, steel foundries, chemical processing facilities, and bulk powder handling systems.

2. Key Features of the Mecair VNP220

3. Technical Specifications

4. Construction Details

The VNP220 is designed for performance and serviceability. Its double-diaphragm structure ensures powerful actuation, while high-quality materials provide extended life.

This design ensures durability, corrosion resistance, and reliable operation across millions of cycles in challenging dust collector environments.

5. Functional Characteristics

The VNP220’s functional design provides superior dust collection efficiency:

• Fast Opening Response:
  The valve opens in milliseconds, delivering a powerful pulse that dislodges accumulated dust from filter surfaces.

• High Flow Capacity:
  The 2½-inch port ensures maximum airflow with minimal pressure drop, optimizing air consumption efficiency.

• Compact Configuration:
  The right-angle threaded body allows easy installation in limited spaces, ideal for manifold-mounted or top-tank applications.

• Low Maintenance Design:
  Quick access to diaphragms and pilot assemblies reduces downtime during service operations.

• Energy Efficiency:
  The high-flow geometry ensures effective cleaning with shorter pulses, minimizing compressed air usage and operational costs.

6. Dimensions

| Model | Port Size | A (mm) | B (mm) | C (mm) | D (mm) | E (mm) | Weight (kg) |
|------------|----------------|-------------|-------------|-------------|-------------|----------------|
| VNP220 | 2½″ | 96 | 176 | 35 | 222 | 165 | 3.0 |

These compact dimensions make it compatible with a wide range of filter tank and manifold designs while maintaining excellent flow capacity.

7. Typical Applications

The Mecair VNP220 valve is suitable for a wide range of industrial dust collection systems and air filtration applications, including:

1. Cement Plants – Cleaning of baghouse filters, silos, and conveying systems.

2. Metal & Steel Industry – Filter cleaning in foundries, steelworks, and grinding operations.

3. Power Generation – Dust filtration in coal-fired and biomass plants.

4. Pharmaceutical & Food Processing – Ensuring clean, particle-free air for sensitive production areas.

5. Chemical Processing – Managing powder and catalyst dusts in hazardous environments.

6. Woodworking and Furniture Manufacturing – Removing sawdust and fine particles efficiently.

7. Mining & Quarrying – Cleaning of filters in bulk handling and crushing operations.

Its ability to handle large air volumes and deliver consistent, reliable pulses makes it an essential component in any industrial filtration system.

8. Advantages of the VNP220 Valve

1. Outstanding Flow Rate:
   The large 2½″ port and optimized internal geometry provide maximum cleaning energy with minimal air loss.

2. High Durability:
   Anodized aluminum construction resists corrosion, while stainless-steel fasteners enhance mechanical strength.

3. Rapid Response Time:
   Double diaphragm configuration ensures instantaneous opening and closing, improving pulse efficiency.

4. Low Operating Costs:
   Reduced air consumption translates to energy savings over continuous operation cycles.

5. Versatile Installation:
   Threaded female ports simplify assembly into existing systems without special adapters.

6. Easy Maintenance:
   Service kits allow quick replacement of diaphragms, pilots, and coils without disassembling the valve body.

7. Wide Operating Range:
   Performs efficiently across diverse pressure and temperature conditions, ensuring reliability in all environments.

8. Safety and Compliance:
   Rated IP65 with Class H insulation for electrical safety; optional ATEX-certified versions available for explosive atmospheres.

9. Spare Parts and Maintenance Kits

To support maintenance and ensure longevity, Mecair provides dedicated service kits for the VNP220 model:

Regular servicing with original Mecair parts ensures consistent valve performance and extended service life.

10. Installation and Maintenance Guidelines

• Air Quality:
  Use only filtered, oil-free, dry compressed air to avoid diaphragm damage.

• Orientation:
  Install the valve with the air inlet and outlet aligned as per the system’s flow direction.

• Electrical Connection:
  Ensure proper voltage matching and grounding per the solenoid’s specifications.

• Inspection:
  Regularly check diaphragms and seals for wear or fatigue.

• Replacement:
  Replace diaphragms periodically using Mecair service kits to maintain full performance.

• Safety:
  Always isolate and depressurize the air supply before servicing.

11. Conclusion

The Goyen Mecair VNP220 is a 2½-inch high-flow threaded pulse valve offering exceptional performance, reliability, and efficiency in industrial dust collector systems. Built for demanding environments, it provides fast actuation, superior air delivery, and long service life, ensuring optimal filter cleaning and reduced operating costs.

Whether for cement manufacturing, steel processing, or chemical plants, the VNP220 delivers the performance and dependability expected from Mecair’s advanced engineering. Its combination of robust construction, energy-efficient operation, and ease of maintenance makes it a preferred choice for engineers seeking long-term reliability in pulse-jet cleaning systems.