Overview
The VANVEO Glass Lined Paddle Agitator is specifically designed for gentle mixing duties involving low-viscosity fluids and shear-sensitive materials. Unlike high-shear turbine types, the paddle structure promotes a stable radial flow pattern under laminar flow regimes, ensuring uniform blending without damaging delicate molecular structures or crystal formations.
The agitator features a premium high-silica glass lining that is fused to the steel core at high temperatures, creating an ultra-smooth, non-stick surface. This specialized finish is critical for paddle-type operations, as it minimizes fluid friction and prevents material adhesion during sensitive crystallization or thermal stabilization processes.
It is a standard component for reactor stirring systems, ideally suited for glass lined vessels with capacities from 50L to 40,000L and operating temperatures ranging from -20°C to 200°C.
Key Features
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Low Viscosity Mixing Excellence: Optimized for handling thin fluids and light mediums with a maximum viscosity of < 2,000 mPa.s, providing consistent homogenization at speeds of 70–125 rpm.
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Gentle Laminar Flow Pattern: The dual-blade paddle design facilitates a radial, laminar flow regime that minimizes shear stress, making it the premier choice for processes where material integrity is paramount.
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Effective Heat Transfer & Crystallization: Maintains constant fluid movement across the vessel walls to ensure uniform thermal distribution, which is critical for precise crystallization.
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Premium Corrosion Resistance: The 0.8–2.0 mm glass lining offers excellent resistance to acids, alkalis, and organic solvents across the entire temperature range.
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Optimized Tip Speed for Longevity: Operates at a controlled tip speed of ≤ 7 m/s, reducing abrasive wear on the enamel coating while maintaining sufficient kinetic energy.
Typical Applications
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Crystallization Operations: Providing the gentle agitation required for consistent crystal growth and preventing particle breakage.
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Low Viscosity Fluid Blending: Efficient homogenization of light chemical solutions, solvents, and aqueous mixtures.
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Thermal Stabilization: Ensuring uniform temperature distribution in reactors during heating or cooling cycles.
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Sensitive Chemical Synthesis: Managing reactions where high shear forces could negatively impact product quality or yield.
Technical Specifications
| Parameter | Specification |
| Agitator Type | Paddle Agitator (Dual-Blade) |
| Standard | HG/T2051.4-2019 |
| Flow Pattern | Radial / Laminar |
| Max. Viscosity | < 2,000 CPS/mPa.s |
| Speed Range | 70 – 125 rpm |
| Tip Speed | ≤ 7 m/s |
| Nominal Volume | 50L – 40,000L |
| Lining Material | High-Silica Enamel (Cobalt-Blue) |
| Spark Test | 20kV High-Voltage Inspection |
| VN of GLR
（L） |
DN of GLR
（mm） |
dN of Agitator
（mm） |
S
(mm) |
t2×t4
(mm) |
B
(mm) |
H
(mm) |
H1
(mm) |
H2
(mm) |
H3
(mm) |
| 50 | 500 | 40 | 5 | 48×25 | 300 | 920 | 80 | 80 | – |
| 100 | 600 | 50 | 60×30 | 985 | |||||
| 200 | 700 | 400 | 1205 | 150 | |||||
| 300 | 800 | 65 | 86×43 | 500 | 1350 | 100 | 100 | 200 | |
| 500 | 900 | 1565 | 220 | ||||||
| 800 | 1000 | 1770 | 250 | ||||||
| 1000 | 1100 | 80 | 6 | 97×50 | 600 | A-1955 B-2165 C-2195 | A-150
B-345 C-350 |
120 | 300 |
| 1200 | 680 | A-1850 B-2060 C-2090 | |||||||
| 1500 | 1200 | A-2200 B-2410 C-2440 | 340 | ||||||
| 1300 | A-2075 B-2285 C-2315 | ||||||||
| 2000 | 1300 | A-2425 B-2635 C-2665 | |||||||
| 1450 | 720 | A-2135 B-2345 C-2375 | 360 | ||||||
| 3000 | 1450 | 95 | 8 | 115×65 | A-2715 B-2980 C-2995 D-3400 | A-150 B-400 C-390 D-800 | 135 | ||
| 1600 | A-2550 B-2815 C-2830 D-3235 | ||||||||
| 4000 | 1600 | A-3030 B-3285 C-3300 D-3705 | |||||||
| 1750 | A-2680 B-2955 C-2970 D-3375 | B-400
C-390 D-800 |
|||||||
| 5000 | 1750 | B-3415 C-3430 D-3835 | |||||||
| 1900 | 820 | B-2935 C-2950 D-3355 | 410 | ||||||
| 6300 | 1750 | 10 | 720 | B-3770 C-3785 D-4190 | 360 | ||||
| 1900 | 820 | B-3335 C-3350 D-3755 | 410 | ||||||
| 8000 | 2000 | 880 | B-3805 C-3820 D-4225 | 440 | |||||
| 2200 | 980 | B-3285 C-3300 D-3705 |
FAQ
Q1: When should I choose a Paddle agitator over a Turbine agitator?
A1: Choose the Paddle Agitator for low-viscosity fluids (< 2,000 mPa.s) and applications requiring gentle mixing like crystallization. For gas-liquid dispersion or high-shear needs, the Turbine type is required.
Q2: Is the paddle agitator suitable for gas-liquid dispersion?
A2: No, the paddle type is specifically not suitable for gas-liquid dispersion as it generates a laminar flow that cannot effectively break down gas bubbles.
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