Radial high-pressure ventilators VVD

VVD Radial High-Pressure Fans

Modern industrial fans are increasingly used to ensure stable air supply in complex production processes. VVD units belong to equipment capable of creating high pressure in the system and maintaining a continuous flow of gas mixtures even with significant aerodynamic resistance. Radial centrifugal high-pressure fans stand out for their stability, durability, and ability to operate in various industrial ventilation systems and installations with high efficiency requirements.

What are VVD high-pressure fans and where are they used?

High-pressure fans are units designed for moving air and gas mixtures in industrial, agricultural, and technological processes. The design provides significant pressure, so high-pressure fans are used where it is necessary to overcome high network resistance. VVD fans are used in grain drying units, air conditioning systems, ventilation systems, as well as in various technological workshops where stable air supply is critical.

Fans manufactured by KVZ effectively operate in air conditioning, heating systems, industrial furnaces, and drying lines. They are also used for supplying or exhausting air in centrifugal systems. VVD type fans withstand operation at temperatures from -40 to +80 °C (with dust concentration not exceeding 100 mg/m³). The Ventilator.ua online store offers to buy radial high-pressure fans in Kyiv. For our clients' convenience, we provide a wide range of models, best prices, and delivery across Ukraine and abroad.

Operating Principle of High-Pressure Fans

The operating principle of the VVD radial fan is based on the interaction of the current in the motor windings with a magnetic field. When electrical energy is supplied to the stator, a magnetic field is generated, causing the rotor to rotate, which drives the impeller. Under centrifugal force, air enters the suction inlet, accelerates between the blades, and is discharged into the scroll casing, forming a high-pressure stream.

This operating principle ensures a steady torque, allowing the fan to function effectively even under heavy loads in industrial systems.

VVD Fan Design Features

• Fan type: centrifugal, radial, single-suction;
• Impeller: 12 backward-curved blades balanced on a high-precision stand;
• Material: carbon steel (stainless steel, aluminum, or special alloys available);
• Transmission: directly on the motor shaft or via a belt drive;
• Casing: scroll-type, rotatable up to 270° (45° steps);
• Electric motor: three-phase, 380 V, rotation speed 1000–3000 rpm;
• Air temperature range: from -40 °C to +80 °C;
• Explosion protection available;
• Coating: high-strength powder painting.

This technical design guarantees high efficiency, low noise levels, and minimal vibration load. The impeller undergoes dynamic balancing, ensuring smooth operation even at high speeds.

After manufacturing, every fan undergoes balancing to avoid vibrations. Products made of stainless/carbon steel or dissimilar metals are characterized by wear resistance, while specialized variants provide anti-corrosion properties. VVD models use industrial-class electric motors that guarantee reliable impeller rotation even under high loads. We invite you to buy a high-pressure fan at a competitive price from the Kyiv Ventilation Plant.

Execution Schemes and Casing Orientation

VVD high-pressure fans are produced in two main schemes:

• No. 1 — impeller mounted directly on the motor shaft;
• No. 5 — driven via a V-belt transmission.

The rotation direction of the VVD fan is determined from the suction side:

• Right (RH) — clockwise scroll casing direction;
• Left (LH) — counter-clockwise scroll casing direction.

The fan casing features a rotating mechanism that allows the angle to be fixed from 0° to 270° at 45° intervals. This provides installation flexibility in confined spaces.

Advantages of VVD High-Pressure Fans

• High resistance to dust;
• Simple maintenance and reliable motor cooling;
• Easy adjustment of rotation speed;
• Compact dimensions and ease of installation;
• Long service life without loss of productivity.

VVD fans are adapted for use in air conditioning, heating, and drying lines. With the correct rotation and casing settings, they provide optimal pressure distribution. Thanks to stainless or carbon steel construction, VVD fans operate stably in humid or dusty environments. Explosion-proof motors allow for use in potentially hazardous installations.

Popular VVD Models

High-quality VVD series high-pressure centrifugal fans produced by KVZ are in constant demand. For example, VVD (VR 154-21) No. 5 with an 11 kW 3000 rpm motor (Execution 1) and VC 6-28 (VR 120-28) No. 8 with a 55 kW motor (Execution 5) are powerful industrial units. For less demanding systems, the VVD (VR 154-21) No. 5 with 5.5 kW 3000 rpm motor (Execution 1) is used. Explore the characteristics in the VVD (VR 154-21) carbon steel category. You can buy these models directly from the factory with a warranty and delivery across Ukraine: Kyiv, Lviv, Odesa, Kharkiv, and Dnipro.

How to select a VVD fan for production tasks

Selection is based on operating conditions and technical requirements. Key selection parameters:

• Impeller diameter;
• Capacity in m³/h;
• Generated pressure level;
• Rotation speed;
• Material;
• Transmission scheme;
• Rotatable casing capability.

For complex ventilation systems, it is better to choose a model with higher power, effective in long air ducts. Carbon steel fans withstand mechanical loads, while stainless steel models handle high humidity. Aluminum or special alloys are recommended for corrosive environments.

Buy VVD fans in Kyiv and Ukraine

KVZ plant is a leading manufacturer of industrial high-pressure fans in Ukraine. The Ventilator.ua catalog presents all sizes of the VVD series. Before shipping, every fan undergoes static and dynamic balancing. On Ventilator.ua, you can buy VVD fans directly from the manufacturer with delivery across Ukraine and export options to Europe.