Details

This rotary valve is designed for discharging bulk solid materials, and pellets from hoppers, silos, receivers, and cyclones into pneumatic conveying systems or gravity chutes. It consists of a cylindrical housing with a multi-vane rotor that rotates around a central shaft. As the rotor turns, material fills the pockets between vanes at the inlet and discharges at the outlet while maintaining an airlock seal between different pressure zones. This design prevents system pressure loss and blow back through the inlet, allowing continuous and controlled material flow. The valve is available in drop-through and side-entry configurations and can be constructed from cast iron, stainless steel, or carbon steel to suit various material handling requirements. It is suitable for both dilute phase and dense phase pneumatic conveying applications across multiple industries.

Core Advantages

Maintains pressure seal while transferring material between different pressure zones. Prevents system pressure loss and blow back through the inlet.

Provides consistent and uniform discharge rate.

Reduces material waste and dust emission.

Operates reliably with minimal maintenance.

Suitable for both dilute phase and dense phase pneumatic conveying.

Product Features

The rotor features multiple blades that create individual pockets for metered material transfer. Wear-resistant construction includes hardened tips and replaceable liners for extended service life. Available in drop-through and side-entry configurations. Shaft seals with air purge prevent dust leakage into bearings.

Product Applications

This rotary valve is widely used for discharging dust collectors, feeding pneumatic conveying systems, metering bulk materials from silos and bins, and providing airlock isolation between different process vessels. It is suitable for chemical, food processing, pharmaceutical, plastics, mining, and building material industries handling dry powders or granules.

Precautions

Do not exceed rated rotor speed or pressure. Keep purge air supply connected when handling fine powders. Inspect rotor tips and housing liners regularly. Disconnect power and lock out before opening.

Picture of Factory

Why Choose Us

1. Engineering depth Layouts are checked against your P&ID and hazard study to align interfaces, venting, and access platforms with site standards. 2. Manufacturing traceability Material certificates and weld maps can be bundled for FAT documentation, supporting audit-ready pharmaceutical projects. 3. Lifecycle support Spare parts kits, on-site commissioning, and remote guidance shorten startup time and keep feeding performance stable.

FAQ

Q: What is the difference between drop-through and side-entry configurations?

A: Drop-through valves have the inlet centered above the rotor for gravity flow. Side-entry valves have offset inlet designed for higher pressure differentials and reduced material degradation.

Q: How does the air purge system protect the bearings?

A: The air purge creates positive pressure inside the seal chamber, preventing fine dust from migrating along the shaft and entering the bearing housing.

Q: When should I replace the rotor tips or housing liners?

A: Replace when the gap between rotor tip and housing exceeds manufacturer specification, typically 0.1 to 0.3 millimeters for fine powders or when leakage and air loss become noticeable.