Working medium of FRP flap door: industrial temperature, acid and alkali, domestic sewage, sea water, etc. Working temperature: 60 ℃ or below, according to the application requirements, it can be designed to withstand 100 ℃ working pressure: sealing ring mode from atmospheric pressure to 0.25MPa: lip seal, opening angle of hollow tube sealing cover: > 60 ℃, Barthel hardness: 30-40 specific gravity: 1.8-1.9 service life: more than 10 years.
Composites such as FRP are treated through superstition. It has the advantages of light weight and strong initial strength. It is an alternative to traditional cast iron doors, stainless steel flap doors and steel tapping doors.
Structure and working principle of FRP door: cylindrical FRP door is composed of valve seat, valve plate, dense soil sealing ring and hinge. Cylindrical FRP valves are only used for cylindrical and square outlets with unidirectional flow. It has compact structure, reliable operation, and no manual opening and closing force is required for the pressure from the water source. When the water pressure in the door is greater than the pressure outside the glass fiber reinforced plastic door, the shell is closed and the shell is closed.
FRP door installation requirements: flange connection FRP door is divided into wing ring pipe flange connection, embedded bolt flange connection and shrinkage bolt flange connection.
Disadvantages and development of FRP materials: FRP has a strong design, can be combined with a variety of metals or nonmetals; it can also be called FRP composite data, and FRP products are also considered as products, process molds, environmental solutions, equipment and personnel skills, which indirectly affect the success or failure of FRP products. In the FRP industry, there is a saying that it is difficult to learn and control. As a result, many people have a stereotype that FRP has one or another. Achievements can only be used as subordinates of industrial products. In fact, after years of development, glass fiber reinforced plastic industry has a high level of technology, the process is very mature, and the quality has been greatly improved. Nowadays, many complicated crafts are made of FRP. Beautiful shape, smooth lines, the market is very active.
Comparison between traditional cast iron door and glass fiber reinforced plastic door:
Traditional cast iron doors are made of cast iron. It has high strength and strong rigidity. Because of the traditional cast iron door, therefore uses the cast iron data, the density is higher than the weight, the weight is higher than the weight. The price of cast iron door is high and its function is poor. Door, other metal door bullet, its anti-theft performance is poor, but also to the drainage task brings hidden trouble. FRP door, no recycling value, is processing this result. Cast iron doors cause heavy information of the original. Although the unit price of the original is low, it is far higher than the data of FRP. Therefore, the price of cast iron door is certainly the price of glass fiber reinforced plastic, there is no obvious disadvantage. However, the function of FRP is much better than that of cast iron. Shooting door. Due to the large number of cast iron doors, it is difficult to open them and there is a large head loss. However, the original FRP shot had no result.
There are several disadvantages of the traditional gate clapper
1. It is more energy-saving (for example, manual external force is not required to open and close the door)
2. Long life expectancy (complex mechanical structure, easy maintenance)
3. Easy to use (the switch does not need manual operation)
Later, with the development of new data technology, composite data appeared, such as FRP, HDPE. Composite data capture goalkeeper is the development direction of future shooting. The composite data capture gate itself takes advantage of the formability of the new data technology, that is, high strength and low density, which is the disadvantage of traditional film gate data. The new material has the advantages of light weight, quick opening, small head loss, low price and no recycling value, so it has good anti-theft function. FRP door consists of seat, valve plate, tight soil seal and hinge.