Pipe network stacked water supply equipmentAdvanced products, reliable quality, high standardization, and good universality

Adjust the operating status of the equipment until it stops and is ready for standby, ensuring that the pressure in the inlet pipe network no longer decreases and does not have adverse effects on the tap water pipe network; When the water supply capacity of the tap water network is restored and the pressure of the inlet network is above the protection pressure, the equipment will automatically start and resume normal water supply; When the remaining pressure in the water supply network meets the user's water supply requirements, the equipment automatically enters a sleep state and is supplied directly to the user by the water supply network. When the water supply is insufficient, the equipment automatically resumes operation; When the user does not use water or uses very little water, the equipment automatically enters a shutdown sleep state. The small flow stabilizing and pressure maintaining tank located on the outlet side of the equipment maintains the user's water usage and pipe network leakage. When the user's water stabilizing and pressure maintaining tank cannot maintain the required pressure of the water supply pipe network, the equipment automatically wakes up and resumes normal operation. During the operation of the equipment, the remaining pressure of the tap water pipeline network is fully utilized, which always does not have any adverse effects on the tap water pipeline network and maximizes the satisfaction of user needs

Pipe network stacked water supply equipment

1. There are many links in the water supply system, such as float valves, pump bottom valves, etc., which are prone to failure, resulting in poor stability, high failure rate, heavy maintenance workload, short service life, and difficult management of Shanghai's non negative pressure water supply equipment.

2. The equipment operates with loud noise and causes environmental pollution. In short, the use of reservoir type secondary pressurized water supply can no longer meet the needs of society, whether from the perspectives of energy conservation, water conservation, land conservation, hygiene, or environmental pollution

With the development and progress of socio-economic technology, the water quality standards of municipal water supply systems are gradually improving, and the water supply capacity is constantly increasing.

model selection

1. Installation conditions: A concrete platform with sufficient load-bearing capacity or a flat ground that can ensure normal working requirements
2. Power supply: TN-S system, 3-phase 5-wire, 380V (+10%, -15%), 50Hz (± 5%), grounding resistance less than 4 ohms
3. Environment: Indoor installation and use, 0-40 ℃ non freezing, no condensation below 90% RH, no corrosion, flammable and explosive gases
4. Below 1000m altitude and 5.9m/s (0.6g)

Performance characteristics:

1. No need to build high-level water tanks, ground (underground) water tanks - clean, hygienic, efficient, energy-saving, and cost-effective
The HDL-WG series direct connected non negative pressure water supply equipment is economical and hygienic, fully utilizes the pressure potential energy of municipal water sources, and maximizes the energy-saving effect of variable frequency speed regulation. Practice has proven that using direct connected non negative pressure water supply equipment can save more than 50% of the construction cost of water tanks, and compared with other water supply equipment, can save 20% -40% of electricity.
2. Low operating noise
Adopting variable frequency speed regulation operation, especially using a full frequency control system, most of the time, especially at night, it operates at low speed and low noise.
3. The use of fully enclosed diaphragm tanks with buffering and dynamic compensation functions is more practical than ordinary non negative pressure water supply equipment currently on the market. And simplify the control system.