A valve is an indispensable central air conditioner terminal accessory in the ventilation, air conditioning and air purification engineering for industrial plants and civil buildings. It is generally used in the pipes of air conditioning and ventilation system to adjust the air volume of branch pipes. It can also be used to adjust mixing fresh air and return air.The company’s products are divided into several categories, such as volume dampers, fire dampers, smoke exhaust valves and smoke exhaust fire dampers.Product features1. Flexible operation, low noise, small and light, easy to disassemble and repair;2. Less leakage. Rubber sealing strips are equipped on both sides of the blade to ensure that the internal leakage requirements of the valve are satisfied;3. Simple and compact structure with flexible operation. Equipped with a locking device, it is convenient to block the reverse air flow under emergency;4. Small opening pressure difference, good adjustment performance with reliable closing.5. A variety of material configurations, suitable for different media.

The vortex fan is a universal gas source for blowing or inhaling. It applies to discharging non-combustible, non-explosive and non-corrosive gas. It is widely used in conveying powder and particles, fiber industry, sanitation industry, electroplating tank stirring, spray dryer, water-treatment pump, injection molding machine automatic feeding dryer, ceramic pneumatic packaging power source, etc. Flow rate: 18~1157m³/hFull pressure: 1300~34000PaMedium temperature: ≤80CThis fan model has 10 specifications: No21.5~No56. Product featuresThe vortex fan is mainly composed of an impeller, a front half casing, a rear half casing, a base, an exhaust muffler group and a motor. It has compact structure and small size, and its impellers are directly mounted on the motor shaft and is directly driven by the motor. The impeller adopts the in-block casing of aluminum alloy, which is light in weight. After static and dynamic balance correction, the fan runs smoothly and reliably.

Product overviewSDF series axial-flow fan (fan) is a kind of high-efficiency, low-noise, long-range axial-flow fan (fan), including impeller, motor, motor leg, air duct, inlet collector, outlet collector.This series of fans is compact in structure. It adopts high-efficiency impeller and inlet collector to realize the efficient operation of impeller. On the air duct of rotating impeller, there is a window to scatter the rotating noise (wind noise) of airflow, so as to avoid the accumulation and accumulation of noise in the air duct. Moreover, due to the high wind speed and negative pressure in the air duct, the air near the through-hole is sucked into the air duct, which further increases the wind Machine efficiency. At the same time, the outlet collector is introduced, aiming at the characteristics of high wind speed in the outer ring of axial-flow fan or fan impeller, the high-speed rotating air flow in the outer ring of the axial-flow fan is concentrated to the inner ring, thus improving the rotating airflow diffused to the outer ring after the outlet of the axial-flow fan, which makes the airflow difficult to scatter, and the static pressure efficiency is significantly improved, and the air volume is concentrated and the scattering is small The range of airflow increases obviously, and the central wind speed can be increased more than 3 times when the distance is more than 1.5m from the outlet. It is especially suitable for various applications requiring high wind speed cooling.Installation, adjustment and commissioningBefore installation, carefully check whether all parts of the fan are complete and in good condition; whether the impeller, air duct or casing are damaged or deformed due to transportation; whether the parts are connected tightly; if any problem is found, timely repair and adjustment can be carried out before installation and use.The direction of the fan should be the same as the direction of the fan and the direction of the fan impeller.The foundation or hanger for installing the fan shall have sufficient strength, stability and durability.After the fan is installed, check whether the impeller rotation is flexible; whether there are abnormal sounds such as collision and friction; whether there are impurities in the fan to avoid damaging the impeller when entering the fan during commissioning; check the lubrication of the motor to ensure that the fan can start up and operate normally at any time.The installation personnel are responsible for the safe and reliable installation of the fan and ensure that the operation of the fan will not cause personal injury. In the process of installation, special attention should be paid to the installation reliability of fasteners, safety protection accessories, etc.When installing the fan, the user should reserve enough space to facilitate the daily inspection and maintenance of the fan, the disassembly of the fan and the replacement of the parts.Safety rules: the selection, connection and grounding of power line of wind power must be consistent with the technical specifications of design requirements. And connect according to the wiring diagram on the junction box or attached with the machine.Product parametersProduct outline drawing and dimension Typical installation diagram of productOperation, maintenance and inspectionRegularly check whether the current, voltage and power of the motor in normal operation exceed its rated value.Regularly check whether the electrical circuit and instrument are correct, whether there is aging or other damage;When the fan (fan) is in normal operation, regularly check whether the bearing temperature is normal, the bearing temperature rise shall not be more than 40 ℃, and the surface temperature shall not be more than 85 ℃. If it is found that the fan has severe vibration, impact, bearing temperature rising rapidly and other abnormal phenomena, emergency shutdown must be carried out to eliminate it.Regularly check whether the installation foundation and other fasteners of the fan (fan) are firm and reliable;Clean the dust, dirt and debris on the fan regularly.Comparison of product characteristics between SDF axial fan and ordinary axial fan

Product overviewHtfc-v series box type centrifugal fan is a box type centrifugal fan with backward inclined blades. The product is composed of low-noise backward inclined blade centrifugal fan, motor, bearing, transmission parts, silencing box, etc. According to the different installation positions, 12 different angles of inlet and outlet positions are provided to meet the different installation needs of users.Applicable placeHtfc-v series backward inclined double suction centrifugal fans are mainly used for ventilation system of large shopping malls, subways, gymnasiums, exhibition centers and hotels, as well as central air conditioning units, air purification units, fan coil units and other supporting requirements.Fan featuresThis series of fans have the characteristics of excellent performance, low noise, light weight, beautiful appearance and convenient installation. Especially in the large flow area, its effective volume flow is 1-2 times larger than the traditional fan.Fan structureThe air volume of htfc-v series fan ranges from 500m3 / h to 220000m3 / h, and the total pressure can reach 3200pa; there are 19 kinds of impeller specifications with diameters ranging from 180mm to 1400mm, corresponding to No. 1.8, No. 2, No. 2.25, No. 2.5, No. 2.8, No. 3.15, No. 3.55, No. 4, No. 4.5, No. 5, No. 5.6, No. 6.3, No. 7.1, No. 8, No. 9, No. 10, No. 11.2, No. 12.5 and No. 14. The fan is driven by belt, which can meet the wide range of performance requirements by using different belts and motors.Htfc-v series fan has three types: single machine, whole machine and box type.The single machine is mainly composed of casing, impeller, frame, main shaft and bearing, but does not include motor, belt, pulley, underframe and anechoic box; the whole machine includes single machine and motor, belt, pulley and underframe, but does not include noise reduction box; box type includes complete machine and sound elimination box body.Product installation and air outlet positionFan outlet location diagram

Product overviewHIFC series box type centrifugal fans are divided into ventilation type and fire smoke exhaust type. They have the advantages of high efficiency, low noise, high temperature resistance, excellent performance, novel structure, small vibration, light weight and convenient installation. It is widely used in hotels, restaurants, auditoriums, basements, workshops of factories and mines, office buildings and other occasions that need fire protection and ventilation.This series of fans have 11 models from No9 to no36, with air volume of 1500-100000m3 / h and wind pressure of 200-1800pa. When the temperature of flue gas medium transported by nxtc series products is 280 ℃, it can ensure continuous operation for more than 1 hour; when the ambient medium temperature is 80 ℃ ~ 100 ℃, it can ensure long-term continuous operation. It is not allowed to carry viscous substances in the gas conveying, and the content of dust and hard particles is not more than 150mg / m³.Classification and use of fansHIFC series box type centrifugal fans are divided into type A and type B. The motor installed outside the box is type A, and the motor installed in the box is type B. Type A is used for fire control and smoke exhaust, and type B is used for ventilation.HIFC series products can choose different motor installation types and matching different motors according to different purposes of users: they can be divided into two types: type I and type II, of which type I is single speed type, type II is double speed motor, equipped with double speed motor, to realize two speed speed speed regulation, which can meet the user's requirements for adjustable performance of different operating points. The fan can also be equipped with variable frequency motor and variable frequency controller to realize variable frequency speed regulation. It is suggested that the regulating frequency should be locked in the range of 25Hz ~ 50Hz.Product features1. The box structure adopts aluminum alloy assembled structure, and the frame and its connectors are specially designed. The appearance is beautiful, smooth and steady.2. Large size inspection door is adopted for easy access of maintenance personnel. The inspection door and the frame are fixed by movable lock, which is very convenient for assembly and disassembly.3. The sandwich panel is adopted for the box panel, and the middle layer is made of noise reducing material.Product outline drawing and dimensionProduct outline drawing         Table of product dimensionsNote: 1. The height of A-type fan is not included in the motor height, and the width is not included in the belt cover width.2. The weight in the table is the weight of double deck panel, and the unit is included in the weight of motor.3. If the motor specification selected exceeds the scope of this sample, or the outlet position type other than this sample is selected, its external dimension may change, which can be determined according to the actual needs of users.Product installation and air outlet positionFan installation diagram      Fan outlet location diagram

Axial fans are divided into fire-protection smoke-discharge axial fans, general axial fans and roof fans.Fire-protection smoke-discharge axial fans have the advantages of excellent high temperature resistance, wide application range, high efficiency and convenient installation, which is widely used in high-rise buildings, tunnels, underground buildings and other occasions for ventilation or fire-protection smoke exhaust.General axial fans have outstanding characteristics such as high efficiency, low noise, stable performance and simple structure. It is widely used in wall-type air supply and exhaust, pipeline air supply and exhaust and post air supply in industrial and mining enterprises and civil buildings.Roof fans are mainly used for the regular air exhaust of factory buildings, with the function providing a suitable and satisfactory air environment for the equipment and personnel in the service area.Product features1. Various installation methods can be customized according to customer requirements;2. Fan impeller types can be customized: steel impellers, cast aluminum impellers (explosion-proof). Product specificationsThere are 15 specifications in this series of fans, No2.8~No18.

Axial fans are divided into fire-protection smoke-discharge axial fans, general axial fans and roof fans.Fire-protection smoke-discharge axial fans have the advantages of excellent high temperature resistance, wide application range, high efficiency and convenient installation, which is widely used in high-rise buildings, tunnels, underground buildings and other occasions for ventilation or fire-protection smoke exhaust.General axial fans have outstanding characteristics such as high efficiency, low noise, stable performance and simple structure. It is widely used in wall-type air supply and exhaust, pipeline air supply and exhaust and post air supply in industrial and mining enterprises and civil buildings.Roof fans are mainly used for the regular air exhaust of factory buildings, with the function providing a suitable and satisfactory air environment for the equipment and personnel in the service area.Product features1. Various installation methods can be customized according to customer requirements;2. Fan impeller types can be customized: steel impellers, cast aluminum impellers (explosion-proof). Product specificationsThere are 15 specifications in this series of fans, No2.8~No18.

The centrifugal fan comprehensively takes into account the high-pressure coefficient of the high-pressure fan and the characteristics of medium-and-small flow selection section of the medium-pressure fan, so it can keep the selected fan always within the optimal working condition range, achieving the ideal state of high efficiency, energy saving, compact structure and convenient installation and maintenance and being widely applied to the ventilation in industrial and mining, steel, petrochemical, environmental protection, nuclear power and other enterprises.The structure of the fan driving mode are eqipped with Type A, Type C and Type D; There are altogether 16 machine numbers for the fan specifications from No.3.2, No.4, No.4.5, No.5, No.5.6, No.6.3, No.7.1, No.8, No.9, No.10, No.11.2, No.12.5 , No.14, No.16, No.18 to No.20; There are altogether seven standard angles of 0°, 45°, 90°, 135°, 180°, 225° and 270° made for the air outlet of the fan: Coupling driveIts transmission efficiency is high, safe and reliable. It adopts the direct connection of shaft with the coupler, so the motor does not need to be in a high temperature area, and it can avoid the excessive starting torque, protecting the motor. Belt driveBy changing the size of the pulley diameter and the different transmission ratios of the driving wheel and the driven wheel, the speed and flow of the fan can be adjusted, and the motor installation position is flexible.Motor direct-connection driveThe fan has high transmission power, high mechanical efficiency and reliable performance. Direct connection is generally applied to fans with relatively small air volume and pressure.

The centrifugal fan comprehensively takes into account the high-pressure coefficient of the high-pressure fan and the characteristics of medium-and-small flow selection section of the medium-pressure fan, so it can keep the selected fan always within the optimal working condition range, achieving the ideal state of high efficiency, energy saving, compact structure and convenient installation and maintenance and being widely applied to the ventilation in industrial and mining, steel, petrochemical, environmental protection, nuclear power and other enterprises.The structure of the fan driving mode are eqipped with Type A, Type C and Type D; There are altogether 16 machine numbers for the fan specifications from No.3.2, No.4, No.4.5, No.5, No.5.6, No.6.3, No.7.1, No.8, No.9, No.10, No.11.2, No.12.5 , No.14, No.16, No.18 to No.20; There are altogether seven standard angles of 0°, 45°, 90°, 135°, 180°, 225° and 270° made for the air outlet of the fan: Coupling driveIts transmission efficiency is high, safe and reliable. It adopts the direct connection of shaft with the coupler, so the motor does not need to be in a high temperature area, and it can avoid the excessive starting torque, protecting the motor. Belt driveBy changing the size of the pulley diameter and the different transmission ratios of the driving wheel and the driven wheel, the speed and flow of the fan can be adjusted, and the motor installation position is flexible.Motor direct-connection driveThe fan has high transmission power, high mechanical efficiency and reliable performance. Direct connection is generally applied to fans with relatively small air volume and pressure.