Product Description
S18 Water Pump Pressure Controller Adjustable Pressure Automatic Switch Pipeline Booster Pump DN25 Thread Auto Start Stop
S18 Water Pump Pressure Controller Adjustable Pressure Automatic Switch Pipeline Booster Pump DN25 Thread Auto Start StopProduct Specifications
Thread Size: 1 inch
Rated Voltage: 220V–240V
Starting Pressure Options:
1–2.5KG
1–2.8KG
0.3–7.9KG
1.5KG
Working Temperature Range:
60℃–70℃ or 60℃–100℃, depending on the model
Pump Lift Height:
≥15m
≥25m
≥28m
≥79m
The pump lift height varies by model.
Rated Current: 16A
Power Options:
1.1KW
2.2KW
Power Cord:
Included or not included, depending on the model
Connection Cable:
Included or not included, depending on the model
Pressure Gauge:
Included or not included, depending on the model
Important Notes
Pressure adjustment is used only to set the starting pressure or delay time. It does not control the stopping pressure or the water flow rate.
Wiring Instructions
Use 0.75–1.5mm² copper wire.
If your pump has only two wires, a ground wire may not be required.
Make sure all copper wires are fully inserted into the terminals and all screws are firmly tightened.
Loose wiring may cause a short circuit and damage the control board.
For any questions or assistance, please contact us.
2. Parameters
Parameter | Specification |
Port Size / Thread | 1 inch |
Rated Voltage | 220V–240V |
Start Pressure Range | 1–2.5KG / 1–2.8KG / 0.3–7.9KG / 1.5KG |
Working Temperature | 60℃–70℃ / 60℃–100℃ |
Pump Head (Lift) | ≥15m / ≥25m / ≥28m / ≥79m |
Current | 16A |
Power | 1.1KW / 2.2KW |
Power Cord | With / Without |
Connection Cable | With / Without |
Pressure Gauge | With / Without |
Features
Automatic Start & Stop
The pump automatically starts and stops according to water demand, helping reduce energy consumption and minimize system wear for more efficient operation.
Adjustable Start Pressure
The top-mounted adjustment screw allows you to easily customize the starting pressure to match different water usage requirements.
Dry-run Protection
The controller automatically shuts off the pump when no water supply is detected, effectively protecting the pump from dry-running damage.
Fault Indicator
Equipped with a built-in LED indicator that quickly displays system faults, making maintenance and troubleshooting faster and easier.
Industrial-grade PCB
Built with high-quality electronic components and reinforced terminals to ensure stable performance, improved durability, and extended service life.
Copper-core Relay
Designed with a copper coil and silver oxide tin contacts for excellent conductivity, reliable switching, and long-term performance.
Upgraded Diaphragm
The thickened rubber diaphragm is highly durable and can withstand pressures up to 15KG, offering excellent resistance to bursting.
High-Temperature Check Valve
Features a heat-resistant ABS triangle valve and sealing ring that can withstand temperatures up to 120°C while effectively preventing backflow and leakage.
Heavy-duty Spring
Made from quenched manganese steel, the reinforced spring resists deformation and provides stable, accurate pressure control over extended use.
Applications
Suitable for use with pipeline pumps, booster pumps, self-priming pumps, and circulation pumps, making it ideal for a wide range of household and industrial water supply systems.
Important Note
This controller is designed only for automatic pump start and stop control. It does not increase, regulate, or boost water pressure.












FAQs
Q1: Does this controller increase water pressure?
A1: No. This controller only manages the pump’s automatic start and stop functions. The actual water pressure depends on the performance of your pump.
Q2: Can I adjust the startup pressure manually?
A2: Yes. The controller is equipped with a top-mounted adjustment screw, allowing you to easily customize the startup pressure according to your needs.
Q3: How should I wire the controller correctly?
A3: Please use 0.75–1.5mm² copper wire for installation. If your pump only has two wires, the ground wire is optional. Ensure all copper wires are fully inserted and all screws are securely tightened to prevent arcing, poor contact, or damage to the control board.
About Prime Living
Prime Living is a Canadian online store offering a carefully selected range of quality products for home, automotive, tools, outdoor living, electronics and more.
We are committed to fast order processing, secure packaging and reliable tracked shipping to provide an excellent shopping experience.
Shipping policy
We carefully handle each order to ensure your package arrives quickly and safely. Please note that factors such as weather, postal traffic, or carrier performance may occasionally cause delays beyond our control.
We provide free shipping and dispatch all orders within 2 business days of payment, often sooner. All shipments are sent via international express air shipping, with a tracking number provided so you can follow your order every step of the way.
. Please provide a physical address, as we do not ship to P.O. Boxes.
Returns
Your satisfaction is important to us. Hexlight offers a 14-day Free return policy: if you are not fully satisfied with your purchase, you may request either a full refund or an exchange. All return shipping costs are fully covered by us.
Condition
Brand New
Shipping
This item is shipped directly from our supplier in China with tracking.