20/40 Pressure Switch (Model PS2040)

The PS2040 20/40 Pressure Switch is a dependable mechanical control device designed to automatically regulate pump operation in residential and light commercial water systems. Preset to activate the pump at 20 PSI and shut it off at 40 PSI, this switch helps maintain consistent water pressure while protecting pumps from excessive cycling and premature wear.

Commonly used in shallow well systems, booster pumps, and pressure tank installations, the PS2040 offers reliable performance, simple installation, and long service life. Its compact, durable design makes it a trusted solution for maintaining stable, controlled water delivery.

Key Features

• 20/40 PSI Factory Preset
  Turns the pump on at 20 PSI and off at 40 PSI for controlled pressure regulation.

• Automatic Pump Control
  Cycles the pump based on real‑time system pressure without manual operation.

• Durable Mechanical Design
  Built to withstand repeated pressure changes in everyday water system use.

• Adjustable Pressure Settings
  Allows limited adjustment of cut‑in and cut‑out pressures within design limits.

• Standard System Compatibility
  Designed to integrate with common pressure tanks and residential pump systems.

• Protective Enclosure
  Enclosed housing helps protect internal components from dust and incidental contact.

Product Description

The PS2040 Pressure Switch plays a critical role in maintaining proper water pressure within a pumping system. As system pressure drops to the 20 PSI cut‑in point, the switch automatically activates the pump to restore pressure. Once pressure reaches the 40 PSI cut‑out level, the switch shuts the pump off, helping conserve energy and extend pump life.

Its mechanical operation provides dependable response to pressure changes, ensuring smooth system performance and reliable water delivery. The PS2040 is particularly well suited for applications requiring lower pressure ranges, such as shallow well or low‑demand water systems.

Designed for straightforward installation and dependable long‑term operation, this pressure switch is ideal for both new installations and replacement of existing 20/40 pressure switches.

Manufacturer Specifications

• Product Type: Pressure switch
• Model Number: PS2040
• Pressure Setting: 20 PSI cut‑in / 40 PSI cut‑out
• Operation Type: Automatic mechanical switch
• Function: Pump on/off control based on system pressure
• Adjustment: Adjustable within manufacturer limits
• Installation Location: Pressure tank or pump system
• Use Environment: Residential and light commercial water systems
• Housing: Enclosed for component protection

Recommended Applications

• Shallow well pump systems
• Residential pressure tank installations
• Booster pump systems
• Low‑pressure water supply systems
• Replacement of existing 20/40 pressure switches
• Light commercial water control applications

Why Choose Model PS2040

The PS2040 20/40 Pressure Switch provides reliable, automatic pressure regulation for systems requiring lower operating pressure. Its durable construction, proven mechanical operation, and compatibility with standard water systems make it a practical choice for maintaining consistent water delivery while supporting pump longevity.