The filter-dehumidifiers are used to remove moisture from the working circuits of refrigeration units. The dehumidifier is installed between the condenser and the capillary tube of the liquid line.

The component filters the refrigerant from particles and dust, thus preventing clogging of the pipes with solid particles and protecting the compressor

Filter-dehumidifiers are used in:

• Refrigerating/freezing chambers
• Refrigerated display cases
• Conditioners
• Household refrigerators

The component prevents the ice formation and penetration of contamination into the cooling circuit, which can cause corrosion of metal components of the system, destruction of the refrigerant, and compressor failure.

The filter-dehumidifiers are available in various diameters. The inlet and outlet openings can be single-way or multi-way.

Copper filter-dehumidifiers are used in refrigeration units with unidirectional movement of the refrigerant. The component removes solid and liquid impurities from the refrigerant.

Models vary in the geometric dimensions of the copper cartridge and the inlet and outlet opening diameters. The copper wall thickness is 0.5mm.

The volume of the loaded sorbent (zeolite) varies depending on the cooling circuit capacity and the refrigerant. The filter-dehumidifier openings are protected with plastic plugs.

• Weight of the zeolite filling (g): 10-50
• Filtration rating: 100μm
• Diameter (mm): 16-30
• Length (mm): 90-170
• Connection type: soldering
• Copper housing thickness (mm): 0.5
• The inlet and outlet openings are protected with plastic plugs
•  Compatible with HCFCs, HFCs, CFCs of refrigeration units
• Temperature (°C): -30…+80
• Pressure (MPa): 4.2

The filter-dehumidifier consists of a copper cartridge (90-170mm long, 16-30mm in diameter) with an inlet and outlet openings.

Inside the cartridge tube, a sorbent is filled in between the filter meshes. The large inlet mesh prevents the zeolite from being carried away and entering the condenser. The fine outlet mesh removes solid particles from the refrigerant. The installation direction is indicated by an arrow on the housing.

The sorbent usually consists of synthetic zeolite (NaA) granules of 1-3mm.

The filter-dehumidifier is not repairable. In case of failure, the component is replaced completely. Capillary tubes may need to be cleaned or replaced as necessary.

The filter-dehumidifier replacement procedure consists of 3 steps:

• Dismantling the old dehumidifier and cleaning the soldering points
• Soldering of the new filter-dehumidifier and air bleeding
• Refrigerant injection and circuit sealing

To select a suitable filter-dehumidifiers, please, leave a request to our specialist.

Axial fans are used in forced ventilation, heating and cooling systems. The equipment is suitable for both removal and delivery of gaseous medium.

The fan directs the airflow along the blades axis of rotation. There is almost no movement in the radial direction

Axial fans are used for:

• Supply and exhaust ventilation
• Air back-up in fire-fighting systems
• Smoke exhaust systems
• Heat guns
• Radiator cooling
• Mine ventilation
• Gas supply systems
• Electronics cooling
• Household fans
• Aircraft engine turbines
• Wind tunnels

Axial fans have the highest efficiency compared to radial and tangential fans.

Motor power and impeller geometry determine the fan performance. Options may include power regulators.

The YWF series fans feature a simple and reliable structure. The blades and body are made of carbon steel with a paint coating. The equipment’s service life is 40,000 hours. Fans do not require additional maintenance.

The impeller is balanced in two planes and provides a minimum noise level. The protective grille prevents objects from falling on the impeller.

The engine has IP44.

The equipment can be easily mounted on a grid or flanges. The fan can be fixed in the opening and mounted in the air duct.

The fan features high efficiency (up to 80-90%) and low energy consumption.

The axial fan works as a suction or discharge device. The air flow is directed along the blades axis of rotation.

The fan consists of an electric motor and an impeller mounted on its axis.

The impeller is a metal or plastic blade mounted on the bushing. The blades are positioned at an angle to the axis of rotation.

The equipment is equipped with a grid that protects the blades from foreign objects. The equipment is installed at the inlet or outlet of the air duct. The electric motor uses mains voltage 220/380V.

The fans are available with round grilles (G-type) and flanges. The fan with a flange is built into the air ducts and wall openings. This connection is tight and reliable when installing ventilation systems. The flange can be square (S-type) or cylindrical (I-type).

The flow rate and pressure generated are determined by the area and angle of the blades, as well as the motor power.

To select the suitable model of the axial fan, please, leave a request to our specialist. In the request, describe the task that you need to solve.

The electric motor with split poles is used for assembling compact fans in refrigeration and heating units. The component is suitable for applications that do not require the creation of a large torque.

The fans based on such motors are suitable both for exhaust and delivery of the gaseous medium.

The component is used in the fans of:

• Refrigeration equipment
• Heat guns
• Air conditioning pumps
• Humidifiers
• Air purifiers

The electric motor is additionally equipped with an impeller, a protective grid, and a bracket. Please, refer to the table below to select a suction or discharge impeller.

Fans equipped with a split-pole motor are used for tasks that do not require the creation of a large torque.
The motor can withstand frequent starts and sudden stops. Allows long periods of downtime. In technical terms, corresponds to the long-term operation mode S1.
The electric motor is non-reversible. Clockwise or counterclockwise rotation.
Mounted in a horizontal position. The component is attached with the screws. The YZF-00 series motors do not have special mounting screws. The YZF-18/26 series motors have 2 pairs of mounting screws with fitting distances of 18 and 26 mm. The YZF-18 and YZF-26 series motors have 1 pair of mounting screws with a distance of 18 and 26 mm, respectively.
The YZF-18/26 series motors include the technical features of YZF-18 and YZF-26 series.
The micromotor has a low noise level
The permissible operating temperature is 0-60°C.
The motor has a simple design. No maintenance required.

A split-pole motor is a single-phase asynchronous electric motor. It uses standard AC networks 220/380V.
The electric motor is manufactured with an external or internal rotor. The motor stator contains 2 windings located on opposite poles. The main winding is connected to the supply network. The auxiliary winding is shorted and has 1-3 turns per pole.
The motor rotor is short-circuited. Cooling fins are fixed at the rotor ends.
The main stator winding is positioned symmetrically or asymmetrically relative to the rotor. Asymmetric electric motors are characterized by significant magnetic flux scattering and efficiency not exceeding 15%. Symmetrical engines are technically more difficult to manufacture, but their efficiency reaches 25%.
The fan consists of an electric motor and an impeller mounted on its axis.
The impeller is a metal or plastic blade mounted on the sleeve. The blades are positioned at an angle to the axis of rotation. The flow rate and pressure generated are determined by the area and angle of the blades, as well as the motor power.

Table for selection of the suction impeller

Table for the selection of discharging impeller

The fan can be equipped with a grid that protects the blades from foreign objects

To select a suitable fan model, please, leave a request to our specialist. In the request, describe the task that you need to solve.

Heating of engineering and building structures. The heating cable is flexible and suitable for heating objects of complex geometry. Can be easily wrapped around hard-to-reach areas.

The heating cables are used for heating of:

• Air conditioning systems
• Evaporators and condensate trays
• Doorways of cooling chambers
• Pipes and valves (anti-frosting)
• Electric motors of fans and pumps
• Roofs, drains, ramps (anti-icing and protection from snow accumulation)
• Underfloor heating
• Greenhouses, aquariums, terrariums
• Incubators
• Sterilizers
• Containers for cosmetics, food

The resistive cable is easy to install. Once connected, it can be hidden under finishing and decorative panels.

The standard cable cross-section is 6,5×4,5mm. The cable with a diameter of 3.5mm is available for applications that require increased flexibility.

Before use, the heating cable can be cut into pieces multiple to 500mm. The ends of the pieces must be sealed with shrink wrap. The cable sections are connected to each other by special connectors.

A version with a mono output is available: It is used for condensate drain EHC.

The heating cable is supplied in bobbins.

The heating element of the cable is a resistive wire wound between two conducting cores. The phase and neutral wires are covered with a protective silicone/PVC sheath.

The heating element of the cable is a resistive wire wound between two conducting cores. The phase and neutral wires are covered with a protective silicone/PVC sheath.

The load is uniformly distributed along the cable length. The heat transfer depends on the current flowing and the segment length.
The cable external insulation is protected with a braided metal mesh. It works as a ground connection and improves the heat distribution in the cable.

• Specific power: 10-60W/m
• Operating voltage: 12-230V
• Operating temperature: -50..200⁰C
• Cable diameter: 6, 5×4, 5/3.5mm
• Bending radius: >15mm
• Metal braid: on request

To select a suitable heating cable model, please, leave a request to our specialist. In the request, describe the task that you need to solve

A rotary type electromechanical device is used for switching and manual selection of the operating mode of electrical equipment.
Rotary switches are used in household and industrial AC and DC devices at a voltage of up to 600 Volts. The component does not have its own power consumption.
Four/five-position switches are used in the production of:

• Heat curtains
• Fan heaters
• Heat guns
• Electric stoves
• Gas stoves

The switches have a compact size. The wear-resistant mechanism is assembled in a dielectric housing made of fire-resistant polyamide/bakelite.

• Each position is switched by a metal axis in steps: 90° – 4-position switch / 72° – 5-position switch
• Rated current and voltage: 16A-250VAC / 10A-400VAC
• Operating life: 10,000 cycles
• Dielectric housing made of polyamide/bakelite
• Shaft length: 19mm
• The gap between the open contacts of one pole is 3mm
• Current-carrying elements: copper alloy
• Contacts: silver-containing alloy
• Operating temperature: <150 °C
• Humidity: up to 85%
  

To select a suitable model, please, leave a request to our specialist. Describe the task you need to solve and specify the required batch size.

The switch is used to turn on/off the power supply. The light indicator located in the key provides visual information on the operating mode of the equipment.
The switches are used in the production of equipment and household appliances:

• Refrigerators
• Heat curtains
• Ovens
• Electric stoves
• Microwaves
• Dishwashers
• Vacuum cleaners
• Heaters

• Rated voltage and current: 6A-250VAC / 9A — 125VAC / 16A-250VAC / 21A — 125VAC
• Operating life: 10,000 cycles
• Resistance <20 MΩ
• IP protection
• Polyamide dielectric housing
• Polycarbonate key
• Current-carrying elements: brass
• Contact material: silver-containing alloy
• Fire protection class UL94 V-2. Can withstand 350 ⁰C for a short time
• Operating temperature: -60 — +85 °C
• Humidity up to 85%

The key switch can be manufactured in a water-proof housing. Explosion-proof design is available.

To select a suitable model, please, leave a request to our specialist. Describe the task you need to solve and specify the required batch size.

Fans for domestic and industrial ventilation systems. The air in tangential fans moves in a plane perpendicular to the impeller axis of rotation.
A tangential fan creates a flat and uniform air flow. They are used in equipment for air exchange, drying, cooling, removal of air and gas media.
Tangential fans are used in production of:

• Heat and air curtains
• Conditioners
• Fancoils
• Drying equipment
• Ovens
• Projectors
• Solariums

Tangential fans have various capacities and impeller geometries. The characteristics of the electric motor and impeller determine the direction and speed of air flow.
There are fans in which two impellers are installed on a single electric motor. The tangential fans can be installed horizontally or vertically.

Tangential fans are characterized by high air flow and low pressure (head). The equipment creates uniform airflow. Due to the low flow pressure, a dust filter can be installed at the inlet.
Due to compact flat geometry, mounting depth is small. Therefore, the fan can be installed in various equipment or in a protective casing.
The fan is watertight and is suitable for air conditioners and refrigeration equipment. The equipment can operate at a temperature of 40..+60 °C.
The fans feature high efficiency (up to 70%) and low energy consumption.
The tangential fans are characterized by a low noise level at a high air flow rate.
Tangential fans with a DC motor have a higher speed compared to AC models and create a higher maximum pressure.

The tangential fan consists of a motor and an impeller assembled in a single housing.
Motor is located at the fan butt end. The fan can use both alternating and direct current (AC/DC). Fan motors can be brushed or brushless. The motors have various power and operate at a voltage of 12V / 24V / 110V / 220V.
The impeller is an oblong cylinder with blades made of aluminum, steel, or plastic.
The diameter, the wheels length, and the blades inclination angle determine the air flow speed and the pressure created.
The airflow direction is set by the impeller orientation (R/L). During rotation, the air is taken by the blades along the entire length of the wheel, and its flow is accelerated towards the diffuser.
The air baffle (diffuser) is a slot located along the fan body for the airflow to exit.
Air enters through the outer surface of the impeller. The directed flow is blown in a plane perpendicular to the cylinder axis of rotation.
The tangential fan is equipped with protection against pole reversing and rotor blocking. Thermistor protects the equipment from overload.

To select a suitable model of the tangential fan, please, leave a request to our specialist. In the request, describe the task that you need to solve.

Impellers are used to create a uniform directional air flow in tangential fans. http://importfay.com/ru/product/tangentsialnyiy-ventilyator/ Used in cooling/heating and ventilation equipment

Impellers are suitable for the fans installed in:

• Heat and air curtains
• Conditioners
• Fancoils
• Drying equipment
• Ovens
• Projectors
• Solariums

The component is made in standard sizes, articles of custom geometries can be made to order.

The light-weighing wheel is made of aluminum or plastic. Provides high efficiency of tangential fans.

The impeller is balanced. Creates minimal noise when rotating.

The wheel material is resistant to moisture and most gas environments. The operation temperature is ‑40..+60°C. The component is hygienic and can be removed and washed.

The wheel blades can be straight or asymmetrical. The length of the blades and wheels can be made according to the terms of reference

Universal mounting on the shaft allows the impellers to be installed on tangential fans of most types.

The impeller is made in a form of an oblong cylinder with blades. The wheel is driven by an electric motor.

The blades capture air along the entire impeller length and accelerate it towards the exit slot in the plane perpendicular to the axis of rotation.

The impellers have a range of diameters and lengths.

• Material: plastic / aluminum
• Rotation direction: right (R) / left (L)
• Type: single wheel / double wheel

To select a suitable model of the impeller, please, leave a request to our specialist. In the request, describe the task that you need to solve.

Soldering is a widely used method for installing cooling systems and gas/liquid transport systems assembled of copper pipes. A special type of solder must be used for reliable soldering of pipes and fittings.

Solder is filled into the mounting gap and heated with a burner until it melts. If the technology is strictly followed, a wide soldering belt is formed, which guarantees the connection tightness. The joints withstand tensile tests without breaking and are stronger elements than the copper pipes themselves.

The strength and corrosion resistance of the joint depends on the correct choice of the solder.

Depending on the purpose of communications and the operation temperature (-50..250°C) of copper pipes, the following types of solder are used:

• Low-melting (soft) solder is used for pipelines for drinking and hot/cold water supply and heating with an operating temperature of up to 110°C
• Refractory (hard) solder features higher temperature resistance and shear resistance and is used in heating systems

The solder is a tetrahedral rod with a length of 500mm and a cross section 1,5 / 2 / 3mm. The bars are packed in boxes of 1.0 kg. The minimum package contains 25 boxes.

The solder can also be supplied in the form of rings

• Copper solder is recommended for soldering with a gap of 0.5-1.5mm
• Silver content: 0, 2, 5, 15%
• Phosphorus content: 5-7%
• Strip size: 1x30x500mm
• Number of pieces per pack: 28

To select suitable grades of copper solder, please, leave a request to our specialist.

Copper fittings are used to connect pipes for soldering. Soldered connections are extremely reliable and provide the maximum speed of installation of copper pipes.

Special fittings are used for threaded connections and pipe pressuring.

For solder joints, copper or bronze fittings and solder are used. We produce fittings of high-purity copper (C12200) according to BS 864, ANSI B16.22. The fittings are compatible with the copper pipes.

Copper pipes are often installed in complicated technical conditions. Communications need to be directed at the required angles and bypass existing structures. Pipes can intersect and branch, or have blind ends

A range of fittings has been developed to solve various installation tasks.

Range

• Bends
• Couplings
• Adapters
• Elbows
• Tees
• Arc elbows
• Fittings
• Crosspieces
• Plugs

Specification

• Material: C12200 copper alloy (>99.9% Cu)
• Quenching degree: H58
• Tensile strength at break: 290MPa
• Compatible with copper pipes
• Soldered with special solders

Copper fittings are delivered in plastic bags, packed in boxes.

To select the suitable grades of copper fittings, please, leave a request to our specialist.