Water pressure switches for pumps — buy PacsEngineering equipment online
PacsEngineering water pressure switches are automatic devices that control the activation and shutdown of pumps, maintaining stable pressure in the water supply system.
These units protect the equipment from overload, overheating, and dry-run operation, extending the service life of the pump station and the entire water system.
How a water pressure switch works
The pressure switch automatically reacts to changes in system pressure:
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When a tap is opened, pressure drops — contacts close, and the pump turns on.
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When the upper pressure limit is reached, contacts open — the pump turns off.
This process maintains optimal water pressure, ensuring continuous and safe operation of the system.
Purpose and application
A pressure switch is used in systems with pressure tanks and pump stations. It:
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Controls pump start and stop
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Protects the pump from overheating and dry-run
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Prevents water hammer and leakage
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Maintains stable pressure in faucets and plumbing fixtures
PacsEngineering pressure switches are used in private houses, cottages, farms, and commercial buildings where a reliable and consistent water supply is required.
Installation and connection
The pressure switch is installed after the pump and pressure tank, but before the filters.
It is connected through a five-way fitting, which also connects the manometer and check valve.
For stable operation, a dedicated grounded power line is recommended.
Types of pressure switches
Mechanical pressure switches
The most popular and reliable models, easy to adjust manually.
Adjustment is made using two nuts:
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Lower limit — pump activation pressure (usually 1.5–1.8 bar)
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Upper limit — pump shutdown pressure (around 5 bar)
Advantages:
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Simple and reliable operation
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Affordable price
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Long service life
Electronic pressure switches
More accurate and sensitive devices with digital settings.
They offer a high level of protection, work fully automatically, and allow precise pressure control.
Recommended for modern pump stations and high-precision systems.
Adjustment and maintenance
PacsEngineering pressure switches come with factory settings, but can be adjusted if necessary.
Adjustment is recommended in cases such as:
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Changes in system parameters
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Installation of a new pump
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Increase in water consumption points
Important: Avoid setting the maximum possible pressure — it may reduce the lifespan of the pump.
Advantages of PacsEngineering pressure switches:
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High triggering accuracy
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Overload and dry-run protection
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Durable and reliable construction
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Easy installation and setup
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Compatibility with most pump systems
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Option to buy wholesale or retail with fast delivery
On the PacsEngineering website, you can buy mechanical and electronic water pressure switches suitable for both domestic and industrial pumps.
The company provides expert consultation, warranty service, and fast nationwide delivery.