Direct Connected Water Supply System

Direct Connected (Cabinet Integrated) Water Supply Equipment mainly consists of outdoor cabinet, water pumps, pressure stabilization tank, full variable frequency control system, control instruments, pipelines and valves.It connects to municipal pipe networks or other pressurized water supply networks. Equipped with high-performance full variable frequency water supply units and integrated variable pressure & constant pressure intelligent control system, it makes full use of residual pipeline pressure to supply water by compensating pressure according to actual demand, delivering high efficiency and energy saving.The Direct Connected (Cabinet Integrated) Water Supply Equipment is systematically developed with full consideration of outdoor operating requirements including rainproof, thermal insulation, noise reduction and security. Supported by IoT technology, it realizes remote monitoring and intelligent operation & maintenance.This product is widely used in water supply renovation of old multi-story residential communities and rural urbanization construction. It features no need for new pump houses, short construction period, low investment and low O&M costs.

Flow Range	3~30 L/s
Pressure Range	15~50 MPa
Stabilization Time	≤5 s
Vibration Level	≤5.9 m/s (0.6 g)
Boost Range	40% - 100% of Pump Head
Constant Pressure Accuracy	≤1 m
Altitude	Below 1000 m
Ambient Temperature	-10°C ~ 40°C

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Product Advantages

Environmentally Friendly & Stable

Built-in integrated DC reactor and EMC filter, effectively mitigating harmonic pollution to power grid generated by variable frequency equipment.
Wide voltage design with grid adaptability fluctuation of ±20%, avoiding unstable water supply caused by power grid fluctuation.
Intelligent System

Designed with IP55 outdoor protection rating, adaptable to various water supply scenarios.
Unattended operation via automatic PLC control; real-time water quality and fault monitoring. It supports HMI and remote monitoring without on-site operators.
Cost Saving

Low investment, no secondary construction required for embedded installation. No stagnant water inside the equipment, enabling instant water supply without disinfection treatment.
Full variable frequency control equipped with high-efficiency dedicated Siemens inverters. It keeps pumps operating under optimal working conditions for low power consumption and low operation costs.

Detailed Description

Product Overview

This integrated cabinet-type water supply unit connects directly to municipal water pipelines. Leveraging residual pressure from the pipe network, it adopts full variable-frequency intelligent constant pressure control to make up pressure shortages efficiently. Supported by IoT remote monitoring, it features IP55 outdoor protection, stable operation with low harmonic interference, and requires no water tank. Ideal for municipal water transformation, residential buildings, industrial and agricultural water supply projects.

Performance parameter

No.	Model	Flow (m³/h)	Rated Head (m)	Connection Size (DN)	Motor Power (kW)
1	CDLF2-20	2	15	25	0.37
2	CDLF2-30	2	22	25	0.37
3	CDLF2-40	2	30	25	0.55
4	CDLF2-50	2	37	25	0.55
5	CDLF2-60	2	45	25	0.75
6	CDLF2-70	2	52	25	0.75
7	CDLF2-80	2	60	25	1.1
8	CDLF2-90	2	67	25	1.1
9	CDLF2-100	2	75	25	1.1
10	CDLF2-110	2	82	25	1.1

Structural Characteristics

This structural drawing displays the internal layout of the cabinet-type direct connected water supply system. The complete set consists of vertical multistage pumps, inlet and outlet pipeline assemblies, isolating valves, pressure measuring components and an integrated frequency conversion control module. The equipment directly connects to municipal water pipelines and utilizes residual pressure of the pipe network. With variable-frequency constant pressure control, it supplements insufficient water pressure efficiently. The compact integrated cabinet structure realizes embedded installation without secondary civil construction. Supported by PLC automatic control and IoT remote monitoring, it features low vibration, stable operation and outstanding energy-saving performance, widely used in municipal water supply renovation, residential, industrial and agricultural water supply projects.

Operating Pressure-Temperature Range

Working flow range: 3~30 L/s; boosting scope covers 40%–100% pump head. Operating pressure ranges from 1.5–5.0 MPa, with constant pressure precision ≤ 1 m water column. The system stabilizes pressure within ≤5 seconds. It works reliably at altitudes below 1000 m, ambient temperatures between -10°C and 40°C, and vibration controlled under 5.9 m/s (0.6 g).

Application Scope

FAQs：

1
Can this Direct Connected Water Supply System be connected directly to the municipal water pipeline?

Yes. The unit links directly to municipal pressurized pipe networks. It utilizes the existing residual pipeline pressure and supplements insufficient pressure intelligently. No secondary water tank is needed, avoiding stagnant water pollution.
2
What working environments is the equipment suitable for?

Its enclosure reaches IP55 outdoor protection grade. It works stably within ambient temperature from -10°C to 40°C, below altitude 1000m. It fits residential water supply, municipal projects, agricultural water delivery and industrial water systems, ideal for old community water supply renovation.
3
Does the system support automatic operation and remote monitoring?

Yes. It adopts PLC automatic control. Unattended operation is available, the system monitors water conditions and faults in real time. It supports human-machine interface operation and remote monitoring for convenient daily management.

Tags:

Vertical centrifugal pump

Direct Connected Water Supply System

Direct Connected Water Supply System

Product Advantages

Environmentally Friendly & Stable

Built-in integrated DC reactor and EMC filter, effectively mitigating harmonic pollution to power grid generated by variable frequency equipment. Wide voltage design with grid adaptability fluctuation of ±20%, avoiding unstable water supply caused by power grid fluctuation.

Intelligent System

Designed with IP55 outdoor protection rating, adaptable to various water supply scenarios. Unattended operation via automatic PLC control; real-time water quality and fault monitoring. It supports HMI and remote monitoring without on-site operators.

Cost Saving

FAQs：

Built-in integrated DC reactor and EMC filter, effectively mitigating harmonic pollution to power grid generated by variable frequency equipment.
Wide voltage design with grid adaptability fluctuation of ±20%, avoiding unstable water supply caused by power grid fluctuation.

Designed with IP55 outdoor protection rating, adaptable to various water supply scenarios.
Unattended operation via automatic PLC control; real-time water quality and fault monitoring. It supports HMI and remote monitoring without on-site operators.