Double Sealing Easy Cleaning Stainless Steel Rotary Valve for Powder Conveying

The Doebritz Double Sealing Rotary Valve (Star Valve) is a highly engineered material handling equipment tailored for ultra-fine bulk materials. It functions as a robust rotary airlock, achieving consistent feeding and absolute gas sealing within demanding dense phase pneumatic conveying systems.

Fine mineral powders like talcum and calcium carbonate are notorious for being highly penetrative and prone to packing. Built to survive these harsh conditions under high pressure, our specialized rotary valve is widely deployed in mineral processing lines, chemical powder handling, plastics compounding, and heavy-duty dust collection systems.

• Double Sealing: Ultra-fine powders like calcium carbonate easily seep into standard mechanical gaps under dense phase pressure, destroying bearings. Our advanced double sealing system isolates the internal chamber from the bearing shafts, completely preventing fine powder leakage and protecting internal components.
• Easy Cleaning: Mineral powders can cake or build up inside the rotor over time. The innovative quick-access structure allows operators to open the unit rapidly for thorough washing and interior inspection without unbolting the main line, slashing maintenance downtime.
• Stainless Steel Build: Constructed entirely from premium stainless steel, the internal surfaces resist wear and ensure exceptional long-term structural integrity even under high-pressure conveying conditions.

To guarantee stable and reliable operations under aggressive industrial stress, our equipment operates flawlessly within verified engineering parameters:

• Pressure Resistance: Safely maintains perfect sealing performance in dense phase pneumatic lines operating under pressures from -0.5 to 2 bar.
• Thermal Adaptability: Resists thermal deformation and functions securely across a wide working temperature range of -10 to 150 °C.
• Processing Capacity: Engineered for industrial-scale efficiency, delivering highly accurate volumetric throughput with a maximum capacity of up to 634 L/min.

Integrating this Doebritz rotary valve provides immediate, tangible value to your processing plant. It actively reduces material leakage of fine mineral powders, dramatically improves conveying stability across your high-pressure dense phase line, and significantly lowers maintenance costs and equipment replacement frequency through its accessible, well-protected design.

A: Yes, the heavy-duty stainless steel construction combined with our specialized double sealing technology makes it highly resistant to internal leakage and bearing damage caused by ultra-fine, penetrative powders.

A: Absolutely. With precise internal clearances and excellent pressure isolation capabilities, it acts as a highly reliable airlock specifically suited for the high-pressure demands (-0.5 to 2 bar) of dense phase conveying.

A: Maintenance is straightforward and efficient. The "Easy Cleaning" mechanism allows operators to rapidly access the internal housing to inspect rotor clearances, wash away caked powder, and resume operations with minimal downtime.