In pneumatic conveying and dust collection systems, the Rotary Airlock Valve is the most critical link. Its job is dual-purpose: to continuously discharge bulk solids while acting as a high-efficiency “air seal” to maintain the pressure or vacuum integrity of your system.
At Pyramid (Shree Techno Engineers), we specialize in high-performance airlock solutions that act as the critical seal in your pneumatic conveying system. Our airlocks are designed to maintain a perfect pressure boundary while ensuring a consistent, controlled flow of bulk solids.
Choosing Pyramid Airlocks means investing in engineering that prioritizes system efficiency and long-term reliability. Our commitment to Airtight Precision starts with our rotors, which are CNC-machined to a strict 0.1mm clearance. This ultra-tight tolerance drastically reduces air leakage (blow-back), ensuring your pneumatic system maintains peak pressure while significantly lowering your operational energy costs.
Beyond precision, we protect your equipment with advanced Sealing Technology. By offering versatile sealing options—including Air-Purge Seals and high-grade Gland Packing—we create an impenetrable barrier that ensures fine dust never reaches your bearings, preventing premature wear and costly downtime. To guarantee performance before it ever reaches your site, every unit is Tested for Reliability at our Ahmedabad facility, where it undergoes a rigorous 4-hour dry-run and a comprehensive pressure-leak test. With Pyramid, you aren’t just buying a valve; you are securing a tested, high-performance solution built to last.

The Gold Standard for Hygiene and Durability
Our SS 304 and 316L airlocks are meticulously crafted for industries where purity is non-negotiable.

The Rugged Workhorse for Industrial Bulk Handling
For large-scale industrial applications, our fabricated Mild Steel airlocks offer unparalleled strength and cost-efficiency.

The Space-Saving Solution for Lean-Phase Conveying
Unlike standard drop-through models, the Blow Through airlock is designed for installations with limited vertical headroom.
A Rotary Valve is a general term for metering material. A Rotary Airlock is specifically designed with tighter clearances to prevent air leakage between two different pressure zones.
Yes. For abrasive applications (like cement or minerals), we provide Hardened Rotor Tips and Ni-Hard Liners to significantly extend the valve's lifespan.
We offer Gland Packing, Mechanical Seals, and Air-Purge Sealing to protect the bearings from fine-particle ingress.
Founded in 2002, SHREE TECHNO ENGINEERS (Pyramid Rotary Valves) is a trusted manufacturer and exporter of rotary valves, coal handling systems, ash handling systems, and conveyors.
i /13/ b, Nr. Vinzol Railway Crossing, B/h Satyam Gas Godown, Gidc Phase-2, Vatva, Ahmedabad – 382445 (Gujarat, India).
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