Rotary Valves & Airlocks

Product Overview

The Rotary Valves & Airlocks is a precision-cast feeding device designed to meet demanding industrial needs. It is widely used for silo discharging, positive/negative pressure pneumatic conveying, and dust collector discharge systems.

How It Works

Material enters the valve and is transferred smoothly by the rotating rotor, providing precise, uniform, and continuous feeding. Meanwhile, the precision-machined rotor acts as an air seal, preventing pressure leakage between the upper and lower chambers during pneumatic conveying. It also serves as a critical component in dust collection systems.

Main Structure

The Rotary Valves & Airlocks is mainly composed of the housing, end covers, rotor shaft, seal chamber, bearing housing, air purge system, gear reducer, motor, inlet, and outlet. This equipment is designed for quantitative, uniform, and continuous feeding.

Working Principle

Upon startup of the Rotary Valves & Airlocks, material falls by gravity and fills the spaces between the rotor blades, and is then discharged at the lower side as the rotor rotates.

Applicable Materials & Industries

1. Materials: Dry powders and small granular materials.
2. Industries: Ceramics, pharmaceuticals, food processing, plastics, mining, pigments, new energy materials, and more.

Customization

Drive Options: Explosion-proof motors, variable frequency drives (VFD/VFD speed control), and custom gearboxes available upon request.

Material & Coatings: High-temperature resistant alloys, corrosion-resistant materials, stainless steel, nylon, polyurethane lining, or Teflon (PTFE) coating.

Quick-Clean Slide Rail Type: Designed for easy disassembly and rapid cleaning.

Pressure-Balanced Type: Ideal for lightweight materials.

Key Features

Superior air-sealing performance;

Smooth, uniform, and continuous feeding;

Low noise and minimal vibration;

High wear resistance and long service life;

Low maintenance and high reliability;

Specification Table

No.	Model		Power (kW)	Installation Dimensions (mm)							Rotational Speed (r/min)	Drawing No.	Remarks
	Model	Volume (L)		ΦA	ΦB	ΦC	N*ΦG	H	L1	L2
1	DN150 Standard	2L	0.75	150	200	240	8*Φ12	245	240	930	35	A
2	DN200 Standard	6L	0.75	200	260	302	8*Φ14	310	560	630	35	A
3	DN250 Standard	10L	1.5	250	300	350	8*Φ14	360	360	680	35	A
4	DN300 Standard	14L	2.2	300	400	445	12*Φ22	400	780	780	24	B
5	DN150 Reinforced	4L	0.75	150	240	285	8*Φ22	320	580	560	24	B
6	DN200 Reinforced	8L	1.5	200	295	340	8*Φ22	370	680	650	24	B
7	DN250 Reinforced	12L	1.5	250	350	395	12*Φ22	408	720	650	24	B
8	DN300 Reinforced	24L	3	300	400	445	12*Φ22	480	820	890	24	B
Remarks: L1 and L2 shall be subject to actual dimensions due to different motor configurations.