Product Description
Rotary valves (also known asrotary airlocks,rotary feeders, etc.) are pneumatic valves that handle and meter the flow of granular bulk or powders. Material is fed into the valve via a hopper (see Figure 1) or other inlets, handled through the valve rotor, and then deposited onto a conveyor system in discrete packets, all with minimal pressure loss. They are most often used inair conveyor systemsto minimize the loss of pressure across the valve, but rotary valves are also used to meter materials at a controlled feed rate. They work almost exclusively in air systems and function as airlocks, explosion/flame barriers, and process isolators, among other tasks. They can move dry to slightly sticky products, and find many applications in chemical and food, pharmaceutical, plastic, and other manufacturing markets.Versatile Applications Across Multiple IndustriesRotary valves are engineered to serve diverse applications, from dust collection in cement plants to bulk material transfer in chemical and food industries. Their robust construction and compatibility with various mediaincluding gases and liquidsmake them suitable for demanding industrial environments. With options in numerous sizes and colors, these valves can be tailored for almost any project specification.
Fabrication for Precision and ReliabilityManufactured by experienced producers and fabricators in India, rotary valves undergo stringent quality checks to guarantee operational efficiency. Their precise design ensures consistent rotational movement, optimal sealing, and reduced product wastage, making them ideal for continuous bulk material handling and pneumatic conveying tasks.
FAQs of Rotary Valves:
Q: How are rotary valves used in bulk material handling systems?
A: Rotary valves are commonly installed at discharge points in silos, hoppers, and dust collectors to regulate the flow of bulk materials into conveying systems. They provide accurate feed control, minimize air loss, and prevent material backflow.
Q: What media can these rotary valves handle?
A: These rotary valves are compatible with a broad range of media, including gas, water, oil, acid, and base materials, offering versatile solutions for various industrial processes involving both liquids and particulates.
Q: When is it advisable to use rotary valves in pneumatic conveying systems?
A: Rotary valves are essential when consistent feeding of material into a pressurized or vacuum conveying system is required. They maintain system integrity by delivering material at a controlled rate and reducing air leakage.
Q: Where can I purchase rotary valves in India?
A: Rotary valves are available through an extensive network of dealers, distributors, exporters, manufacturers, suppliers, and wholesalers throughout India. Many fabricators also offer custom solutions based on specific requirements.
Q: What is the process for selecting the correct size rotary valve?
A: Selecting the right valve size depends on material characteristics, desired flow rate, and system pressure. Manufacturers and suppliers in India can assist in evaluating these parameters to recommend the most suitable valve.
Q: What are the main benefits of using rotary valves in dust collection systems?
A: Key advantages include reliable dust discharge, reduced air leakage, prevention of material bridging, and improved operational efficiency, ensuring cleaner and safer industrial environments.