Products

Insulated fan box AirFan ISO-Box 3250 m³/h with foam, equipped with one Ø 250 mm inlet and one Ø 250 mm outlet nozzle for quiet, powerful ventilation.

Detailed features

• Model: AirFan ISO-Box 3250 m³/h, foam-insulated version
• Airflow capacity: 3250 m³/h
• Inlet opening: 250 mm
• Outlet opening: 250 mm
• Housing / insulation material: housing with internal soundproof foam—a thermoplastic panel resistant to moisture and vibration
• Noise level: approximately 34,4 dB(A)
• Power supply: 220-240 V / 50 Hz (standard mains)
• Power: 1089 W 2.4A at peak load
• Operating range (speeds): adjustment between lower and higher values is permitted to adapt to requirements
• Temperature range: from –30 °C to +70 °C
• Protection: class IP44 (splash protection)
• Overall dimensions / housing: approximately 55 × 55 × 55 cm (cubic shape)
• Weight: approximately 18 kg

Recommendations for use

• When connecting to a system, ensure that the inlet and outlet duct diameters match (250 mm inlet, 250 mm outlet).
• Use rubber seals or duct tape to ensure airtight connections and avoid air noise and odours.
• Adjust the speed to the required performance and noise level — for a quieter environment, do not run continuously at maximum speed.
• Mount the box securely, using vibration dampers if necessary, to reduce losses and vibration.
• Check inlet openings periodically for blockage (dust, leaves) and clean them.
• In areas with high humidity or dust, provide filtration before the inlet to keep the fan clean and operating long term.

Benefits

The insulated fan box AirFan ISO-Box 3250 m³/h offers powerful airflow with significantly low noise thanks to its internal foam insulation. It combines capacity with practicality — 250 mm inlet and 250 mm outlet, a wide temperature range, IP44 protection and a durable metal-and-foam design. This makes the model suitable for rooms requiring quiet yet efficient ventilation.

Vermiculite 100l. is a natural, soft and porous material obtained by expanding mica. It has high cation exchange capacity, which helps gradually release nutrients – potassium, calcium, magnesium, iron, silicon and other trace elements.

• Retains up to 4 times more water while protecting roots from rot.
• Absorbs excess fertilisers and additives, then releases them gradually.
• Improves soil aeration and drainage properties.
• Perlite "likes" air, while vermiculite likes water.
• Suitable for seedling substrates.

Vermiculite 1l is a natural, soft and porous material obtained by expanding mica. It has a high cation exchange capacity, which supports the gradual release of nutrients – potassium, calcium, magnesium, iron, silicon and other trace elements.

• Retains up to 4 times more water while protecting roots from rot.
• Absorbs excess fertilisers and additives, then releases them gradually.
• Improves soil aeration and drainage properties.
• Perlite "likes" air, while vermiculite likes water.
• Suitable for seedling substrates.

The VDL 12 L/day dehumidifier is a compact and efficient solution for controlling humidity in spaces such as homes, offices, basements, drying rooms and greenhouses. With an extraction capacity of up to 12 litres of water per day, it maintains an optimal climate by preventing mould, condensation and unpleasant odours.

The device is designed for easy and safe use and uses an environmentally friendly R290 refrigerant, which provides high efficiency with low energy consumption.

The VDL dehumidifier offers intelligent humidity control and is suitable for both everyday use and specific applications such as drying plants or maintaining a stable climate in grow rooms.

Technical specifications:

• dehumidification capacity: 12 L/day
• tank: 1.5 L
• Humidity adjustment: 30% – 80% RH
• power consumption: 260 W
• voltage: 220 - 240 V, 50 Hz
• current: 1.2 A
• noise level: 45 dB
• eco-friendly refrigerant: R290
• dimensions: 34 x 22 x 49.5 cm
• weight: 10.4 kg
• cable length: 150 cm
• Suitable for rooms up to approximately 25–30 m²
• 3 operating modes:
  • Standard (dehumidification)
  • Drying
  • Continuous mode
• Two fan speeds
• Digital display with humidity and mode indicators
• Automatic shut-off when the tank is full
• Option for continuous drainage
• Memory function in the event of a power outage
• Child lock
• warranty: 1 year

? Additional benefits:

• Quiet operation – suitable for living spaces
• Mobile and easy to carry
• Removable and washable filter for easy maintenance
• Overheating protection for safe operation

? Applications:

• Houses and apartments
• Offices and warehouses
• Grow rooms and drying rooms
• Basements, garages and damp spaces

Ideal for creating a stable and healthy environment for both people and plants.

VEAB CWK 315-3-2.5 is a professional duct water cooler for Ø315 mm air ducts, designed to cool air in ventilation and air-conditioning systems using cold water. The heat exchanger has copper tubes and aluminium fins, while the built-in stainless-steel tray collects the resulting condensate. This model is suitable for both central ventilation systems and cooling individual rooms or greenhouses.

CWK 315-3-2.5 is installed directly in a round air duct and uses chilled water as the energy carrier. This allows the air passing through the ventilation system to be cooled without the need for a direct evaporative refrigerant heat exchanger.

The construction is designed for easy maintenance – the casing has an opening cover for inspection and cleaning, while condensate is drained via a stainless-steel tray and G½" drain connection.

Technical specifications

• Manufacturer: VEAB
• Model: CWK 315-3-2.5
• Type: Duct water cooler
• Purpose: Ventilation-air cooling
• Heat-transfer medium: Cold / chilled water
• Air-duct diameter: Ø315 mm
• Number of heat exchanger rows: 3
• Fin spacing: 2.5 mm
• Pipe connections: Ø22 mm
• Condensate drain: G½"
• Internal heat exchanger volume: 1.61 l
• Maximum working pressure: 1.0 MPa / 10 bar
• Installation: In a horizontal air duct
• Heat exchanger: Copper pipes with aluminium fins
• Condensate tray: Stainless steel
• Air-duct connections: With rubber seals.

📐 Dimensions

According to the current VEAB technical documentation for CWK 315-3-2.5:

💨 Cooling capacity

Cooling capacity is not a fixed value. It depends on airflow and air temperature, humidity, as well as the temperature and flow rate of the chilled water.

For example, with water at 6/12°C, the VEAB table gives the following indicative results for CWK 315-3-2.5:

These values are example design points, not a constant product output. For a specific system, VEAB recommends calculation according to the actual air and water parameters.

💧 Control and automation

The CWK itself is a water-to-air heat exchanger. For automatic temperature control, the system can be supplemented with:

temperature controller → sensor → control valve → actuator → frost protection.

For example, VEAB specifies for the CWK 315-3-2.5 a two-way valve ZTV15-1.6 (Kvs 1.6) as a suitable option in its selection table.

This is important for the product page – control components must not be presented as included as standard, unless the specific offer explicitly states this.

💦 Condensate drainage

When warm, humid air is cooled, the heat exchanger temperature may fall below the dew point and condensation may form.

For this reason, the CWK is equipped with a stainless-steel tray that collects the water and allows it to drain through a G½" drain connection.

🛠️ Construction and maintenance

The heat exchanger uses copper tubes and aluminium fins, while the casing is made of protected sheet metal. The opening cover provides access to the interior for periodic cleaning and inspection.

Rubber seals on the round connections make integration into the ventilation system easier.

You can view the manual

🏭 Suitable for

VEAB CWK 315-3-2.5 is suitable for:

• ventilation and air-conditioning systems;
• cooling of supply fresh air;
• air-conditioning of individual rooms and zones;
• greenhouses and controlled environments;
• production and technical premises;
• systems with a chiller or another source of cold water.

The manufacturer explicitly states use both for cooling ventilation air and for individual cooling of specific rooms or zones.

📦 Product information

Model: CWK 315-3-2.5
Manufacturer: VEAB Heat Tech AB
Diameter: Ø315 mm
Warranty: 24 months

⭐ Key benefits

✔️ Professional water cooler for Ø315 mm air ducts
✔️ Operates with cold water
✔️ 3-row heat exchanger
✔️ Copper tubes and aluminium fins
✔️ Integrated stainless-steel condensate tray
✔️ Drain connection G½"
✔️ Maximum working pressure 10 bar
✔️ Openable housing for easy cleaning
✔️ Option for automatic temperature control
✔️ Manufactured by VEAB.

Compact and efficient submersible pump Hailea HX-4500 with a flow rate of up to 2 000 l/h and a head of up to 2,8 m — suitable for ponds, fountains, feeding and circulation systems. Includes a mixer for aerating the solution; designed for long-term use; works well with a low water level in the reservoir; features a built-in flow regulator; suitable for NFT and Flood-and-Drain systems; includes suction cups for secure attachment in the reservoir.

Detailed features

• Flow rate (maximum): 2 000 L/h.
• Maximum head: 2,8 m.
• Power: 36 W.
• Power supply: 220-240 V / 50 Hz.
• Outlet diameter: 20 mm.
• Construction: housing made of ABS plastic, stainless-steel shaft, resistant to fertiliser solutions

Features:

• Rotary flow-control dial
• Built-in mixing port / air-intake accessory on some versions
• Suction cups for securing to surfaces
• Ability to operate at low water level

Recommendations for use

• Secure the pump to a smooth surface with the rubber suction feet to avoid vibration and movement.
• Use a Ø 20 mm hose to avoid a reduction in flow rate.
• Adjust the flow rate according to your needs, especially at different water-column heights.
• Clean the intake cover / filter regularly to prevent clogging and loss of performance.
• Never allow the pump to run dry — it must always be at least partly submerged or supplied with water contact.
• When used in nutrient-solution systems (hydroponics), check the material's compatibility with fertiliser solutions.

Benefits

Hailea HX-4500 is a reliable compact pump offering a flow rate of up to 2 000 L/h, adjustable flow and robust construction. It provides good head for small to medium systems and is suitable for fountains, ponds and hydroponic installations.