As a century-old brand originating in Germany, Wilo enjoys a prestigious global reputation in the pump industry, thanks to its exquisite craftsmanship and reliable quality. The Jet WJ series—a line of stainless steel self-priming jet pumps—is designed specifically to meet the needs of modern households, offering a blend of high efficiency and durability. By ingeniously combining self-priming capabilities with jet-based pressure boosting technology, these pumps are suitable for a wide range of domestic applications, significantly enhancing the quality and convenience of household water usage.
I. Core Performance: Powerful Output and Efficient Self-Priming
The Jet WJ pump’s primary strengths lie in its exceptional self-priming ability and powerful head performance. It can rapidly complete the suction process without the need for manual priming, greatly simplifying operation. Whether drawing water from deep wells or boosting mains water pressure for multi-story homes, it handles the task with ease, ensuring a strong, steady flow and eliminating the frustration of weak water pressure. Its efficient hydraulic design maximizes operational efficiency while minimizing power consumption, making it an ideal energy-saving pump for home use.
II. Superior Materials: Durability and Reliability
The pump body is constructed from high-quality 304 stainless steel. This not only gives the product an elegant metallic luster and a premium feel but, more importantly, provides exceptional corrosion resistance. Compared to standard materials, the stainless steel body better withstands erosion from water impurities, effectively extending the product's lifespan while ensuring the cleanliness and safety of the water supply. Additionally, flow-contact components and machined surfaces undergo special anti-corrosion treatments, further enhancing adaptability to various water quality conditions.
III. User-Centric Design: Quiet Operation and Smart Convenience
1. Quiet Operation: The pump features an advanced low-noise design, incorporating a quiet motor and an optimized internal structure to minimize operational noise. This is crucial for maintaining a peaceful home environment; even when installed near the kitchen or bathroom, the pump does not disturb the family's rest or daily activities.
2. Fully Automatic Operation: The Jet WJ pump offers smart, fully automatic functionality, equipped with a built-in, precision pressure switch. The pump starts automatically when it detects a change in flow upon the opening of a tap and stops automatically when the tap is closed. This "start-on-demand, stop-on-closure" mode offers convenience and ease of use while ensuring high efficiency and energy savings.
3. Compact Design and Easy Installation: Featuring a compact and lightweight design, the product not only saves installation space but also simplifies the installation process, allowing users to complete the setup themselves by following the instructions.
IV. Wide Range of Applications
The versatile Wilo-Jet WJ stainless steel self-priming jet pump is well-suited for a variety of domestic water supply tasks, including:
Domestic Water Supply: Drawing water for household use from wells or storage tanks.
Mains Water Boosting: Resolving issues with weak water flow during showering or hand-washing caused by insufficient pressure.
Garden Irrigation and Courtyard Cleaning: Providing a stable and ample water supply for outdoor use.
Solar Water Heater and Hot Water System Supply: Ensuring stable water pressure for hot water systems to enhance the user experience.
Construction
Self-priming centrifugal pump
Lightweight, compact design; practical carrying handle for easy operation
Hydraulic output; self-priming capability up to 8 m (unaffected even at low flow rates); highly reliable supply
Robust, durable stainless steel construction; impeller, shaft, and housing made of AISI 304
IE3-IEC three-phase AC motor (≥ 0.75 kW)
Applications
Pumping water from wells and cisterns
Filling, emptying, circulation, irrigation, and sprinkling
Emergency backup pump for handling flooding
Equipment/Functions
Available with or without handle, depending on model
For single-phase motors (1~230 V):
Connection cable with plug
On/Off switch
Thermal motor protection switch
Model Code
|
Example: |
WJ-203-X-EM |
|
WJ |
Wilo Jet Pump |
|
2 |
Nominal flow rate Q at peak efficiency, m³/h |
|
03 |
Water pump pressure rating: Model 03 delivers higher pressure than Model 02 (number of impellers not specified). |
|
X |
Models without a mounting base |
|
[Space] |
Portable model with a mounting base |
|
EM |
Single-phase AC, 1~230 V, 50 Hz |
|
DM |
Three-phase AC, 3~230/400 V, 50 Hz |
Technical Data
Mains connection 1~230 V, 50 Hz or 3~400 V, 50 Hz
Max. inlet pressure 2 bar
Fluid temperature range +5 °C to +35 °C
Max. operating pressure 6 bar
Protection class IP44
Suction and discharge connections G 1
Materials
Pump housing made of stainless steel 1.4301
Impeller made of stainless steel 1.4301
Shaft made of 1.4005 Made of stainless steel
Mechanical seal made of ceramic/carbon
Guide vanes/ejector made of modified PPO
NBR seals
As-supplied condition
Depending on the model, the pump may be supplied with or without a mounting bracket
Installation and operating instructions
Accessories
Automatic pressure switch: Fluidcontrol
Suction/discharge hose 1" (lengths 1.5 to 15 m)
Foot valve