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XINXIANG KAIRUI REFRIGERATION EQUIPMENT CO., LTD,is a professional manufacturing company integrating scientific research, design,production sales and service that serve the global. Our factory mainly produce all kinds of refrigeration filter and can be used for Carrier YORK, TRANE McQuay Bitzer Refcomp brand refrigeration units such as the supporting filter spot sales (part). We also sell chiller spare parts for these brands.

Professional Team

Our team of proficient experts is dedicated to building long-term partnerships with clients by delivering impeccable and reliable services.

Custom Service

We provide tailored solutions for the customization of various filter types to meet specific customer requirements.

Reasonable Price

We are committed to offering superior service and high-quality products at competitive and cost-effective prices.

Advanced Equipment

We have adopted world-leading technology and equipment from Europe and the United States, and have implemented robust quality control procedures and advanced production lines.

Trane Flow Switch
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York 024-25500-000 OIL LEVEL SWITCH
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Carrier HK02ZA439 Pressure Switch
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Carrier 00ppy000012000 High Voltage-switch
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Carrier HK05PT00121 Pressure Switch
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York Pressure Switch
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Trane Pressure Switch
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Specification

Rated voltage(V)		125V AC	250V AC	24V DC

Non-Inductive Current		20A	10A	10A
Inductive Current	FullLoad Current	15A	8A	8A
	Locked Roter	72A	72A	64A

Types of Switch

The switches produced by our company mainly include the following types:

Pressure Switch

Pressure switch is a device that detects and responds to changes in pressure within a system by either opening or closing an electrical circuit. It acts as a control mechanism, automatically starting or stopping equipment based on preset pressure levels.

Oil Level Switch

Oil level switch is a safety device used in engines and compressors to monitor the oil level within the crankcase. It triggers an alarm or shuts down the engine if the oil level drops below a predetermined level. This prevents damage to the engine or compressor due to low oil.

Features of Switch

Automatic control

It automatically executes the switch action according to the pressure change without manual intervention, improving the system efficiency.

Adjustable setting range

Most pressure switches support custom pressure thresholds (such as on/off pressure) to meet the requirements of different scenarios.

High precision and stability

Precision springs, diaphragms or electronic sensors are adopted to ensure sensitive response and long-term reliability.

Strong durability

The shell is mostly made of metal or high-strength plastic, which can withstand high temperatures, corrosion or vibration environments.

Diverse types

It is divided into mechanical type (pure mechanical structure) and electronic type (with digital display and signal output), meeting different needs.

Safety protection

Some models are equipped with explosion-proof and waterproof (IP rating) functions, making them suitable for hazardous or humid environments.

Applications of Switch

Industrial equipment

Pressure protection for air compressors, overload protection for hydraulic systems.

Refrigeration/air conditioning

Monitor the refrigerant pressure to prevent damage to the compressor.

Water treatment system

Control the start and stop of the water pump to maintain stable water pressure.

Pneumatic control

Adjust the working pressure of the cylinder or valve.

Safety alarm

When the boiler pressure exceeds the limit, it will trigger the shutdown or alarm.

Main Components of Switch

Diaphragm

A diaphragm is used to detect pressure. The material is usually pliable and sensitive to pressure.

Spring

Used in adjusting setpoints or cut-out points.

Lever

Used to activate or deactivate the switch.

Electrical contacts

Permit current to pass through them from an external power source.

Terminals

To connect the external power source to the contacts.

Switch Installation Steps

Select the installation point: Choose a point on the piping system where the pressure switch can be easily accessed for maintenance and where it will accurately measure the system pressure.

Prepare the threaded connection: If the pressure switch has a threaded connection, wrap Teflon tape around the threads in a clockwise direction to ensure a good seal. A

Gasket sealing: Stainless steel and copper gaskets are other common sealing methods for these pressure switches. These seals are available in flat or profile rings.

Install the pressure switch: Thread the pressure switch into the chosen installation point. Hand-tighten the switch and then use an adjustable wrench to secure it in place.

Connect the electrical wiring: Refer to the manufacturer's wiring diagram before wiring a pressure switch. Typically, there will be two or three terminals: one for the power supply, one for the load, and possibly a ground terminal.

Set the pressure limits: Adjust the high and low pressure limits according to the system's requirements. This is usually done by turning adjustment screws on the switch.

Test the pressure switch: Once the pressure switch is installed and wired, slowly re-pressurize the system and check for leaks around the switch.

Secure the pressure switch: If the switch is not already mounted, secure it to a wall or panel to prevent movement, which could lead to wiring damage or inaccurate pressure readings.

Final inspection: Perform a final inspection to ensure that all connections are secure and that there are no leaks. Verify that the electrical connections are properly insulated and that the switch operates as intended.

Document the installation: Record the installation details, including the pressure switch model, settings, and date of installation, for future reference and maintenance.

Packaging and Shipping

Packaging	Wooden cases and cartons and so on
Shipping	UPS, DHL, FeDex, Sea and air freight, etc

Our Factory

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FAQ

Q: What is a pressure switch used for?

A: A pressure switch serves two main purposes. One is to regulate the pressure in the system or to ensure the reservoir level remains stable. Another is to safeguard equipment from damage or running at low efficiency.

Q: What are the two types of pressure switches?

A: There are two main types of pressure switches: mechanical pressure switches and electronic pressure switches.

Q: What is the difference between a pressure switch and a pressure transmitter?

A: Both pressure switches and pressure transmitters are used in pressure measurement applications, but pressure transmitters typically produce a continuous output, which is connected to a controller that monitors and responds to the pressure within a system. Pressure switches are simpler devices that don’t provide continuous outputs. Rather, it is a switch that can be toggled on and off, similar to a light switch.

Q: How pressure switch works?

A: Inside a pressure switch, there’s a small mechanism that can tell when pressure changes. When the pressure hits a certain point, the mechanism triggers a switch, either turning something on or off.

Q: How to adjust a pressure switch?

A: To adjust a pressure switch, you usually turn a screw or knob to change the pressure level at which it triggers. It’s like setting the volume on your radio – you turn it until it’s just right.

Q: How to set a pressure switch?

A: Setting a pressure switch is similar to adjusting it. You turn the knob or screw until it’s at the pressure level you want. It’s important to follow the instructions carefully to make sure you set it correctly and keep everything safe and working as it should.

As one of the leading switch manufacturers and suppliers in China, we warmly welcome you to buy high quality switch for sale here from our factory. Good service and competitive price are available.

original Carrier pressure switch for Carrier, Trane BRD04873, Original Carrier Carlyle Screw Compressor for 30XA Chiller