It is made from seamless body blank and carbon spiral spring steel wire, using advanced heat sealing technology. It has the characteristics of good suction effect, easy turning, convenient transportation and storage (can be folded) and long service life. As shown in the picture above: Usage: Flexible pipes used in coal mines, tunnels, subway projects and underground to locally guide air flow in a certain direction.
Classification: positive pressure air duct, negative pressure air duct; three ventilation duct
Variety and material: According to the covering material, the hair dryer is divided into rubber coated cloth hair dryer, plastic coated cloth hair dryer and plastic coated cloth hair dryer in rubber-plastic coated fabric. It is antistatic and heat resistant.
Execution standardsproduction: Standard number: MT164-2007 Huai Standard, Standard number: MT165-2007 Huai Standard. "Rubber or plastic coated fabric dryer" specifies the classification, structure, technical requirements, testing methods, inspection rules, packaging, marking, transportation and storage of air ducts. air in fabric coated with rubber or plastic.
Logo packaging, storage and transportation 1. Compress the hair dryer in the axial direction to less than 700mm in length, secure it in 3-4 places with ropes or strips. fabric, then pack it with good quality materials. wear resistance.
2. During transportation, the hair dryer must be protected from mechanical shock and friction, as well as from sun and rain. 3. Products should be stored in a well-ventilated warehouse, and the stacking should not be too high to avoid affecting the quality of use. Air guides uSages should first be rinsed and dried, then folded and stored. damage the quality of rubber and plastics. Contact with substances, avoid direct sunlight and rain. The storage temperature should be between -15℃ and 35℃, the relative temperature should be between 45-75%, and it should be 1m away from the. heat source.
4. Under the specified conditions of transportation and storage, the flame retardant and antistatic properties of the product shall comply with the provisions of this standard within one year from the date of production.
5. The air guide duct must have appropriate specifications according to the tunnel requirements and fan air volume, as well as special shape specifications such as elbows and tees. Pay attention to the direction of the air. flow rate when connected.
6. It must hang in the tunnel straight and straight, tight and suspent firmly, hanging on each turn, repaired when damaged, turned slowly and removed from the water to help reduce resistance. (Repair method: wash the damaged area, dry it and treat it with glue) Usage: Used in kitchen and bathroom, home and small household appliances
Category: Regulation of temperature and speed, induction motor.
Points to note when using the hair dryer:
1 The hair dryer can only be used at home and not for other industrial purposes!
2 Make sure your hands are dry when using! Never immerse the hair dryer in water!
3 Make sure the product is kept away from water. Do not use the hair dryer in the bathroom or near other containers of water!
4 The hair dryer turns off automatically when the overheat protection device operates andcan be reused after a few minutes of cooling!
5 Do not block the air inlet or outlet of the hair dryer. Keep the air intake grille clean and don't let it be blocked by hair!
6 After each use, the power supply should be disconnected immediately. After cooling, store it in a dry and well-ventilated place. Dry, away from sunlight,
Usage: Used for ventilation of pressure guide local in coal mines, tunnels, subway projects and underground Category: Conventional positive pressure air guide, zipper type positive pressure air guide; three-way air guide, special-shaped air guide, automatic switching air guide, reflective air guide.
Variety and material: The air duct is divided into materials of covering fabric covered with rubber. fabric positive pressure air duct, fabric positive pressure air ductpositive pressure plastic coated fabric and positive pressure air duct made of rubber and plastic coated fabric Antistatic and antistatic
Production execution standards: Standard number: 1. MT164-2007 "Coated. Fabric Positive Pressure Air Duct for Coal Mines". 2. GB/T 9900-2008 “Rubber or plastic coated fabric air guides” specifies the classification, structure, technical requirements, test methods, inspection rules, packaging, marking and transporting rubber or plastic-coated fabric air guides. storage etc
Wind pressure resistance: After passing the wind pressure resistance test, the air guide tube should not cause the air duct to detach, tear covering fabric or opening seams. The diameter expansion rate of the hair dryer should not be more than 3.0%. The air guide ductmust have appropriate specifications based on tunnel requirements and fan air volume, as well as special shape specifications such as elbows and tees. Pay attention to the direction of air flow when connecting.
Ventilation performance: The wind resistance value of a 600mm diameter hair dryer per 100 meters is less than 54N·s/M and the air leakage rate is less than 100 meters is less than 5%.
Structure and specifications: 1 - End ring 2 - Lifting ring installation line 3 - Lifting ring 4 - Allowable error of inverted project size (mm) Dryer diameter ( mm) 300 400 450 500 600 800 1000 0~±3 Dryer length (mm) 5 10 20 0~±100 Note: 1. The dryer size or special shape specifications of reducing ducts, elbows, tees and transition joints can be manufactured according to buyer's requirements.
2. If there are any requirementss regarding the specifications of metal accessories such as lifting rings and end rings for hair dryers, the specifications must be agreed by both parties.
3. Add cuffs to both ends of the hair dryer and its length L is 150-200mm.
Air duct ventilation performance test report Air duct diameter, mm Wind resistance per 100 meters (N·S 2 /M 8) Air leakage rate per 100 meters, % 300 ≤1728.0 ≤5.0 400 ≤410.0 ≤5.0 500 ≤134.0 ≤ 5.0 600 ≤54.0 ≤5.0 800 ≤13.0 ≤5.0 Usage: Used for extractable guided ventilation in coal mines, tunnels, subway projects, ships and underground areas
Classification: Conventional negative pressure air guide, negative pressure air guide zipper type Pressure guide air duct
Variety and material: According to the covering material, the air duct is dividedmade of rubber-coated fabric, plastic-coated fabric and rubber-plastic-coated fabric. The barrel blank is processed with carbon spiral spring steel wire. With anti-static and anti-random properties
Production implementation standard: Standard number: MT165-2007 Huai Standard. “Rubber or plastic coated fabric air guides” stipulates the classification, structure, technical requirements, testing methods, inspection rules, packaging, marking, transportation and storage of air guides made of rubber or plastic coated fabric.
Wind pressure resistance: After passing the suction pressure test, the air guide should not cause flattening, disconnection, tearing of the covering fabric or opening of the seams. The negative pressure air guide must have appropriate specifications according to the requirements of the tunnel and the air volume of the fan, and fPay attention to the direction of air flow when connecting.
Ventilation performance: the negative pressure resistance of a hair dryer with a diameter of 600 mm (pa) ≥ 3140. The shrinkage rate of the diameter of the hair dryer is greater than 1%.
Structure and specifications:
Negative pressure resistance performance: When the air duct is subjected to negative pressure resistance test, its value should conform to the following table: Air duct diameter (mm) Steel wire spacing (mm) Negative pressure resistance (pa) 600 150 ≥3140 600 100 ≥4900 Dryer diameter shrinkage greater than 1%