（EN）Pneumatic Shut-Off Valve for Precise Flow Control in Air Slide Conveyor Systems
（ID）Katup Pneumatik untuk Pengendalian Aliran Presisi pada Sistem Air Slide Conveyor
Introduction
The Pneumatic Shut-Off Valve for Air Slide Conveyor is a key flow control device used in cement silos and bulk powder conveying systems.
In modern cement plants and bulk powder handling systems, air slide conveyors are widely used to transport fine materials such as cement, fly ash, limestone powder, and raw meal. However, precise discharge control is impossible without a reliable flow isolation device installed at the silo or hopper outlet.
A pneumatic shut-off valve for air slide conveyor—also known as a pneumatic slide gate valve or pneumatic flow control gate—is designed to start, stop, and regulate material flow while maintaining airtight sealing and stable conveying conditions.
What Is a Pneumatic Shut-Off Valve for Air Slide Conveyor?
A pneumatic shut-off valve is an automatically actuated gate valve installed under silos, bins, or air slide inlets. Driven by a pneumatic cylinder, the slide plate opens and closes quickly to isolate or regulate powder discharge.
These valves are essential components in:
- Air slide conveyor feeding systems
- Silo discharge units
- Pneumatic conveying lines
- Dust collection and material dosing systems
👉 Wikipedia – Pneumatic conveying
Working Principle of Pneumatic Shut-Off Valves in Air Slide Systems
When compressed air is supplied to the pneumatic actuator, the cylinder drives the slide plate to move horizontally or vertically.
- Opening stage: Material flows smoothly from the silo into the air slide trough.
- Closing stage: The valve shuts tightly, preventing backflow, dust leakage, and pressure loss.
This airtight operation ensures stable aeration conditions inside the air slide conveyor, improving conveying efficiency and system reliability.
👉 Wikipedia – Powder flow characteristics
Key Advantages of Pneumatic Shut-Off Valves for Air Slide Conveyors
✔ Fast response and automatic operation
✔ Airtight sealing to prevent dust leakage
✔ Stable feeding for continuous conveying
✔ Suitable for cement, fly ash, lime, and mineral powders
✔ Low maintenance and long service life
✔ Compatible with PLC and remote control systems
👉 CEMA – Bulk Material Handling Equipment Standards
Typical Applications
Pneumatic shut-off valves used with air slide conveyors are widely applied in:
- Cement silo discharge systems
- Fly ash conveying lines
- Raw meal feeding in cement grinding stations
- Dust collector discharge points
- Pneumatic conveying feeding units
👉 Pneumatic Flow Control Gate Valve
How to Select the Right Pneumatic Shut-Off Valve for Air Slide Conveyors
When selecting a pneumatic shut-off valve, consider the following factors:
- Material characteristics (abrasive, fine, sticky, temperature)
- Silo outlet size and air slide inlet dimensions
- Operating pressure and temperature range
- Required sealing performance
- Control mode (manual, pneumatic, PLC automation)
Choosing the correct valve helps prevent silo blockage, unstable feeding, and dust pollution while extending equipment lifespan.
FAQs About Pneumatic Shut-Off Valves for Air Slide Conveyors
Q1: What is the difference between a pneumatic shut-off valve and a flow control gate?
A: A shut-off valve mainly isolates material flow completely, while a flow control gate can both isolate and regulate the discharge rate precisely.
Q2: Can pneumatic shut-off valves handle high-temperature cement materials?
A: Yes. With proper sealing materials and heat-resistant liners, they are suitable for temperatures up to 180–250°C in cement applications.
Q3: Are these valves suitable for continuous operation?
A: Absolutely. They are designed for frequent opening and closing in continuous industrial conveying systems.
Q4: Can the valve be integrated with an automatic control system?
A: Yes. Pneumatic shut-off valves can be connected to PLC systems for automatic level control and interlocking with air slide conveyors.
Indonesian Short Version (Ringkasan Bahasa Indonesia)
Katup pneumatik (pneumatic shut-off valve) merupakan komponen penting pada sistem air slide conveyor untuk mengontrol aliran bubuk semen, fly ash, dan material halus lainnya. Katup ini bekerja dengan silinder pneumatik untuk membuka dan menutup aliran secara cepat dan kedap debu, sehingga menjaga kestabilan pengangkutan dan mencegah kebocoran material.
Pneumatic shut-off valve banyak digunakan pada silo semen, sistem pengumpanan pneumatik, dan jalur pengangkutan bubuk industri. Dengan desain sealing yang baik, katup ini meningkatkan efisiensi kerja, mengurangi polusi debu, dan memperpanjang umur peralatan.
Untuk solusi sistem pengangkutan bubuk yang andal, silakan hubungi LVRUI.
Need a reliable pneumatic shut-off valve for your air slide conveyor system?
Contact LVRUI today for professional bulk material handling solutions.
✔ Get expert quotation and customized solution within 12 hours
✔ Factory direct supply with strict quality control
✔ Professional engineering support from experienced team
✔ Stable delivery for overseas industrial projects
📧 Email: info@lvrui-conveyor.com
🌐 Website: https://www.lvrui-conveyor.com
