Reliable Pressure Protection for Side Channel Blowers: The 2BX Relief Valve

1. What the 2BX Relief Valve Is All About

The 2BX series relief valve is a simple but very important part used with side channel blowers. Its main job is to keep the system safe by releasing extra pressure when things get too high. Because it works with both pressure and vacuum systems, it fits many different types of equipment.

1.1 Strong and Durable Design

The 2BX valve is made with a full-metal structure. The valve stem, spring, and adjusting nut are all made of steel, which helps the valve stay stable during long-term use. The rest of the body is made of aluminum alloy, giving it good strength without adding too much weight.
The 2BX4 model also offers a repeat accuracy of around 5%, meaning it can release pressure at almost the same level every time.

2. How the Valve Works

When installed on the inlet or outlet of a side channel blower, the valve stands by until the system pressure goes beyond what the blower can safely handle.

2.1 Quick Action When Pressure Rises

If pressure suddenly increases, the valve opens within 0.2 minutes. It quickly releases the extra pressure to prevent overload or damage to the blower.

2.2 Smooth Closing for Stable Operation

Once the pressure drops back to a safe level, the valve closes slowly. This avoids sudden changes that could cause the system to shake or rise again.
Because it works with both positive pressure and vacuum, it is useful in many different industrial setups.

3. Where the 2BX Relief Valve Is Used

The 2BX series is widely used across different industries that rely on clean, steady airflow. Here are some of the most common places you’ll find it:

3.1 Industrial Manufacturing

Pneumatic conveying

Dust collection systems

Air-powered machines that need stable pressure

3.2 Environmental and Water Treatment 

Aeration blowers in wastewater treatment

Air flotation systems

Blowers used for oxygen supply

3.3 Electronics and Precision Work

Vacuum holding equipment

CNC machines that require pressure control

3.4 Printing and Packaging

Blowers used for suction and lifting

Air systems that must avoid over-pressure

3.5 Lab and Medical Devices

Small vacuum pumps

Safety systems in lab ventilation equipment

4. Why People Choose the 2BX Valve

High reliability and long life

Quick response to pressure changes

Stable performance with repeated use

Works with many kinds of blowers and setups

5. Tips for Choosing and Installing

To get the best results, make sure the valve matches the blower’s rated pressure. It can be installed on either the inlet or the outlet. Adjust the spring pressure so the valve opens at the right moment for your system.