Water supply refers to the application system that provides domestic water and direct drinking water to buildings or other facilities. This system requires a series of pipes, fittings, pumping stations, water tanks, and controls to ensure that water is conveyed, stored, and distributed to where it is needed, such as residential buildings, commercial buildings, and industrial facilities. In addition, the design and operation of water supply systems need to take into account factors such as water resource sustainability, environmental protection, energy consumption, and safety. Safe and environmentally friendly pipes and fittings are necessary to meet users' long-term needs for water quality and quantity.

The chemical industry involves the industrial sector that utilizes chemical processes and equipment to produce chemicals, petroleum products, pharmaceuticals, food, and other products. In the chemical industry, piping systems are vital components used to transport fluids such as liquids, gases and solid particles. These piping systems must be able to withstand corrosion from chemicals, withstand high pressures and temperatures, maintain stable operation over long periods of time, and maintain a high degree of operational safety. Therefore, when selecting and designing a pipeline system, factors such as the nature of the medium, working conditions (temperature, pressure, etc.), pipeline layout, safety requirements, and economy need to be comprehensively considered to ensure the performance and reliability of the pipeline system.

HVAC applications refer to heating, ventilation, and air conditioning systems used in construction projects to provide a comfortable indoor environment. These systems involve networks of pipes that carry heat, air, and water, as well as various fittings and devices that regulate indoor temperature, humidity, and air quality. Pipe and fitting selection is based on specific application needs and system design requirements. For example, in the heating system, the high-temperature resistance and thermal conductivity of the pipes need to be considered; in the cooling system, the corrosion resistance and thermal insulation performance of the pipes need to be considered. In addition, the design of the pipeline system must also consider factors such as fluid flow, pressure loss, safety, and system reliability to ensure that the system operates stably, efficiently, and safely.

Irrigation refers to the supply of water to farmland, gardening areas, or other vegetated areas through artificial means to meet the water needs for plant growth. Irrigation systems include water supply equipment, pipe networks, and sprinkler systems used to efficiently distribute water and achieve plant growth needs. The selection of pipes and fittings needs to take into account factors such as the area of ​​the irrigation area, plant species, soil type, water supply, and the operating efficiency and cost of the system. A reasonable irrigation system can improve the production efficiency of farmland or vegetation areas, save water resources, and help maintain the ecological environment and promote agricultural development.

The fire protection system is a series of facilities and equipment used to prevent, control, and extinguish fires, including fire water sources, pipeline networks, sprinklers and fire fighting equipment. Pipes and fittings in fire protection systems play a key role in ensuring water transportation, fire extinguishing efficiency and safety. The selection of pipes and fittings needs to take into account the flow rate, pressure requirements, fire resistance of the fire water source, and the operational safety and reliability of the system. These pipes and fittings must comply with relevant fire protection standards and regulatory requirements when designed and installed to ensure that the fire protection system can operate effectively and reliably in a fire event and protect the safety of people's lives and property.

Power communication systems involve equipment and facilities that transmit power and communication signals, including power transmission lines, communication lines, and related equipment. In the field of application, pipeline systems are often used to protect and arrange power cables, communication optical cables and other facilities to ensure their safe and reliable operation. The selection of pipes and fittings needs to consider factors such as the environment in which the pipeline system will be used, the type and specification of cables/lines, and the safety and reliability requirements of the system. Reasonable selection and arrangement of pipeline systems can ensure the stable operation of power communication facilities and improve the efficiency and safety of the system.

Drainage systems are systems used to remove rainwater, sewage, and wastewater from buildings, roads, and urban and industrial areas. These systems transport water from the target area to a suitable drainage facility or treatment site through a network of pipes. The selection of pipes and fittings in the drainage system needs to consider the flow, pressure, water quality, environmental conditions (such as soil, terrain, etc.), and system of the drainage system. factors such as safety and durability to ensure that the drainage system can operate effectively and stably and effectively prevent flooding and environmental pollution.