PC-9 – pressure switch
The IBO PC-9 is a mechanical pressure switch for controlling the operation of a single-phase pump. It starts the pump when system pressure drops to the set value and switches it off when the upper pressure is reached. The operating thresholds are set using two adjustment screws, allowing the device to be adapted to a specific pressure-boosting system.
Who is it for
- Installers and plumbers – simple adjustment with two screws allows the pressure thresholds to be quickly set to suit the system.
- Homeowners with their own water supply – the switch maintains pressure within the set range, automating pump operation.
- Users of pressure-boosting sets – the device controls a pump operating with a pressure tank.
- Allotment gardeners and households – an affordable, durable solution for the pump's daily operation during water use.
Applications
The PC-9 is suitable for domestic and garden water systems with a single-phase pump operating with a pressure tank. The switch maintains water pressure between the set lower and upper thresholds, switching the pump on and off as water is drawn. This allows water to be used without manually controlling the pump.
The device responds to system pressure and is suitable for use with surface and submersible pumps. In a domestic pressure-boosting water system, the PC-9 230 V pressure switch keeps the pump operating within a pressure range set to match the system's requirements.
PC-9 pressure switch features
The PC-9 has two pressure settings—the pump start-up threshold and shut-off threshold. They are factory-set to 1.4 bar for start-up and 2.8 bar for shut-off, and the user can adjust them using two adjustment screws.
The switch operates within a pressure range of 1.2 to 5 bar, with a minimum start-up pressure of 1 bar and a maximum shut-off pressure of 5 bar. The device is compatible with single-phase pumps drawing up to 8 A. It connects to the system via a ¼" thread.
- Brand: IBO
- Type: mechanical pressure switch for single-phase pumps
- Power supply: 230 V, 50 Hz
- Pressure range: 1.2–5 bar
- Maximum current: 8 A
- Minimum threshold difference: 1 bar
- Adjustment: two adjustment screws
- Connection: ¼" female thread
IBO – 24-month (2-year) manufacturer's warranty.
Dambat – a trusted manufacturer of pumps and hydrotechnical equipment with quality certifications.
Frequently Asked Questions (FAQ) – PC-9 pressure switch
What is the PC-9 pressure switch used for?
The PC-9 is a mechanical pressure switch that automatically turns the pump on and off depending on the water pressure in the system. It maintains pressure between the set lower and upper thresholds, allowing the pump to operate without manual control.
How do I set the operating pressure on the PC-9?
The thresholds are adjusted using two screws. The first changes both the cut-in and cut-out pressure, while the second adjusts only the cut-out pressure. First set the cut-in threshold, and then set the cut-out threshold. The difference between the thresholds should not be less than 1 bar.
Which pumps is the PC-9 compatible with?
The pressure switch is designed for single-phase pumps drawing up to 8 A, with a 230 V power supply. It works with surface and submersible pumps in pressurized water systems equipped with a tank.
Does the PC-9 require a pressure tank?
Yes. The PC-9 is designed for operation in pressurized water systems with a tank. The tank stores water under pressure and reduces how often the pump starts between the lower and upper thresholds.
What is the difference between the PC-9 and the PC-2 model?
The PC-9 is a basic pressure switch with a ¼" connection, while the PC-2 has a built-in pressure gauge, a five-way discharge outlet, and a 1" connection, making it a ready-made accessory for a pressure booster set. You can find both of these models, as well as many more, in the controllers section of our website.
Where can I buy the PC-9 pressure switch?
As the manufacturer, we do not sell directly. The IBO PC-9 pressure switch can be purchased from our trade partners, plumbing wholesalers, and authorized online distributors.
What is the warranty on the PC-9 pressure switch?
IBO – 24-month (2-year) manufacturer's warranty.
