NY30 Series Pressure Switch

The NY30 Series Pressure Switch is a compact mechanical pressure switch designed for automatic pressure monitoring and control in hydraulic, pneumatic, water, oil, and gas systems.

Its proven bellows-operated mechanism provides dependable switching performance, adjustable hysteresis, and long service life, making it suitable for industrial machinery, compressors, pumps, and process automation equipment.

What Is a Mechanical Pressure Switch?

A mechanical pressure switch automatically opens or closes an electrical circuit when system pressure reaches a preset value.

Unlike electronic pressure switches, the NY30 uses a purely mechanical sensing mechanism, making it ideal for applications requiring simple, reliable, and cost-effective pressure control.

Typical control functions include:

• Pump start and stop

• Compressor pressure control

• Hydraulic system protection

• Pneumatic system monitoring

• Pressure alarm activation

Working Principle

The NY30 Series operates using an integrated bellows and spring mechanism.

As system pressure changes:

1. Pressure acts on the bellows.

2. The bellows expands or contracts.

3. The movement compresses or releases the adjustment spring.

4. A mechanical lever actuates the internal electrical contacts.

5. The control circuit opens or closes when the preset switching pressure is reached.

This purely mechanical design provides stable switching without requiring electronic sensing components.

Key Features

Compact Industrial Design

The NY30 features a compact construction that allows installation in equipment with limited mounting space while maintaining reliable switching performance.

Adjustable Hysteresis

The differential between switch-on and switch-off pressure can be adjusted to suit various control applications.

Benefits include:

• Stable equipment operation

• Reduced switching frequency

• Longer contact life

• Improved system reliability

Silver-Plated Electrical Contacts

High-quality silver-plated contacts provide:

• Excellent electrical conductivity

• Reliable switching

• Reduced contact resistance

• Long electrical service life

Standard contact configuration:

• 1 Normally Open (NO)

• 1 Normally Closed (NC)

Wide Media Compatibility

Suitable for pressure control of:

• Water

• Hydraulic Oil

• Lubricating Oil

• Air

• Non-corrosive Gases

Technical Specifications

Material Specifications

The NY30 is manufactured using durable industrial materials.

These materials provide good resistance to water, oil, and many industrial fluids.

Typical Applications

The NY30 Series Pressure Switch is widely used in:

• Hydraulic Systems

• Pneumatic Systems

• Water Pumps

• Air Compressors

• Industrial Machinery

• Lubrication Systems

• Process Automation

• Oil Circulation Systems

• Gas Pressure Monitoring

• OEM Equipment

Installation Recommendations

Before Installation

Always verify:

• Product packaging is intact.

• The model and pressure range match the application.

• There is no visible transportation damage.

Electrical Installation

Before energizing the system:

• Confirm that the power supply matches the electrical ratings.

• Follow the wiring diagram carefully.

• Incorrect wiring may damage the switch and void the warranty.

Mechanical Installation

For safe installation:

• Tighten only the hexagonal mounting section using a suitable wrench.

• Do not apply excessive torque.

• Avoid twisting or loading the housing directly.

• Protect threaded connections from mechanical damage.

Troubleshooting

If abnormal operation occurs:

• Stop using the pressure switch immediately.

• Inspect wiring and installation conditions.

• Contact qualified service personnel.

• Do not disassemble or adjust internal components without authorization.

Why Choose the NY30 Pressure Switch?

Compared with conventional mechanical pressure switches, the NY30 offers:

• Compact design

• Adjustable hysteresis

• Reliable mechanical operation

• Silver-plated contacts for longer service life

• Wide media compatibility

• Easy installation

• Low maintenance requirements

• Cost-effective industrial pressure control

These features make the NY30 an excellent choice for industrial pressure switching applications where simplicity and reliability are essential.