Positively seals conveying air and material to atmosphere
The maintenance gate from K-Tron ensures precise control of gravity flow discharge from storage bins and surge hoppers, while positively sealing conveying air and materials from escaping into the atmosphere. Built for durability and hygiene, it provides reliable operation in high-temperature and demanding bulk handling applications.
Benefits:
- Self-cleaning action on closure eliminates material build-up
- Unobstructed opening
- Serviceable while in-line
- Material construction options available
- Horizontal or vertical valve orientation

This valve is compatible with plastics, chemicals, and mineral processing applications. For more details, please visit the maintenance gate page on the Coperion performance material website.
- Overview
- Features
- Gallery
The maintenance gate is designed to control the flow of powders, pellets, and granular materials while maintaining a positive air and material seal up to 1.03 Bar [15 PSIG]. With options for square or round inlets, a self-cleaning blade action, and serviceable components while in-line, it ensures efficient, safe, and low-maintenance operation.
- Aluminum channel frame with AISI 304 stainless steel blade
- Nylon inner gate liner and blade guides for durable, smooth operation
- Manual hand crank actuator for precise control
- Standard sizes from 150–450 mm [6–18 in]
- Compatible with horizontal or vertical orientations

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