11/16/2023 0 Comments Air compressor pressure switch![]() ![]() Adjustment springs: You can adjust the cut-in and cut-out points for the air compressor with a spring.The valve is activated when the contacts separate. It can be found on the base of the pressure switch control, where it’s connected to the check valve with a nylon or copper tube. Pressure switch relief valve: This safety valve is designed to relieve pressure trapped between the pump and the check valve.When the desired pressure is reached, it pulls the conductive contact points apart, breaking the circuit. When the pressure increases, the air pushes against this membrane. Diaphragm: Also called a membrane, a diaphragm is a piece of flexible material that moves when the pressure inside the air tank changes.They are made of a conductive metal, and when the contacts are separated, and the circuit is interrupted, the motor of the air compressor will shut off. Contacts: The contacts are two points in the pressure switch which separate and come together to complete or break the circuit.The incoming and outgoing wiring is connected through the terminals to the pressure switch. Terminals: The pressure switch completes or breaks an electric circuit, thus telling the air compressor when to turn on.While there are a few different designs for air compressor switches, the typical switch has six components: Your pressure switch will monitor the air coming from this compressor tank, so you know how much pressure you’re using and can determine if there is an issue.Ĭompressed air will push equally in every direction and on all sides of the switch at the same time, so damage to the housing or the reservoir can cause a problem in getting correct readings. The switch is usually mounted on the reservoir so the air in the air tank can flow freely to the switch. The housing may be plain or have its own switch that allows for multiple positions such as “auto” functions. Pressure switches will often look like a small rectangular housing about the size of your palm. Leaks at any point in your compressor’s pressure switch and nearby casing can stop your work and cause major problems. The cycle is broken when the unit is no longer powered externally or when there is an issue. Your air compressor pressure switch continues this dance as long as your machinery is using compressed air. This movement closes the circuit and starts the motor back up again. ![]() Once this pressure - called cut-in pressure - lightens to a certain level, an internal operator within the diaphragm will deform in an opposite manner. When the air pressure in your tank drops far enough, the membrane will revert back to its normal shape. ![]() When your air compressor pressure switch’s diaphragm is deformed enough, its movement will break contact inside the switch so that power stops flowing to the compressor’s motor circuit, preventing the compressor from further pressurizing the air in your tank.Ĭonstant air pressure at a specific volume will keep the diaphragm deformed. Deformation here will cause movement in the pressure switch. ![]() The most common device is a diaphragm that will deform or compress when exposed to pressurized air.Īir pressure in your compressor tank will increase and eventually build up enough backward pressure - also called cut-out pressure - to change the shape of this diaphragm. All pressure switches have an element that reacts when pressure is applied to it. How Does an Air Compressor Pressure Switch Work?Īir compressor pressure switches use air lines to monitor pressurized air as it moves to and from your air tank. So, let’s discuss what an air compressor pressure switch is and how it works for you. The switch is your best protection against an over-pressurized tank and air lines for your compressor, keeping you safe from ruptures and dangers. You’ll want to keep it properly maintained and fix it, or replace it when any problems arise. This makes your air compressor pressure switch a part that gets used often, and so it may wear down sooner than others. The switch can turn on your compressor when tank air pressure levels drop and more air is needed. The air compressor pressure switch will also help your machinery maintain the proper pressure level as you go about your work. The air compressor pressure switch measures the pressure inside your air tank and shuts off your compressor when it reaches the air pressure you need. ![]()
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