NSRH Series Roots Blower: Easy Maintenance and Practical Troubleshooting Guide

The NSRH series Roots blower is known for its strong structure, stable airflow, and long service life. In many factories, it runs 24/7 with very little attention. That’s exactly why industrial users trust it.

But here’s the key point: low maintenance does not mean no checks at all. Most failures don’t happen suddenly. They build up slowly. With a few basic inspections, you can avoid downtime, protect the blower, and keep your system running smoothly.

Low Maintenance, But Not Zero Inspection

The NSRH Roots blower is designed for heavy-duty industrial work. The structure is simple, and the working principle is proven. You don’t need daily adjustments or complex service work.

However, problems usually come from operating conditions, not the blower itself. High pressure, dirty air, or lack of lubrication can shorten its life. That’s why regular checks are still important, even if they are simple.

What You Should Check During Routine Operation

Lubrication and Oil Condition

Always keep an eye on the oil level and oil quality. Low oil or dirty oil is one of the fastest ways to damage bearings and gears in a Roots blower.

Bearing Temperature and Vibration

A normal temperature means the blower is healthy. Rising temperature or vibration often shows early mechanical problems.

Air Filters and System Pressure

Dirty inlet filters reduce airflow and increase load. At the same time, make sure discharge pressure stays within the design range.

Common Problems and Their Real Causes

Overheating

Overheating is usually caused by:

Insufficient lubrication

Discharge pressure too high

Poor cooling or ventilation

The blower works harder than it should, and heat builds up fast.

Abnormal or Loud Noise

Noise often means:

Bearing wear

Gear misalignment

Loose foundation or bolts

If the sound changes, don’t ignore it. Noise is an early warning.

Reduced Airflow

When airflow drops, check for:

Blocked inlet or dirty filters

Internal leakage due to wear

Incorrect clearances after long operation

Many airflow problems are system-related, not design issues.

Simple Troubleshooting Checklist for Operators

Step-by-Step Quick Check

Stop the blower and lock out power

Check oil level, oil color, and leaks

Inspect filters, inlet, and outlet

Measure system pressure and temperature

Restart and listen for abnormal noise

This checklist helps operators find most problems on site, without special tools or long downtime.

Preventive Maintenance Builds Long-Term Trust

The NSRH series Roots blower doesn’t ask for much. Clean air, proper pressure, good lubrication, and simple checks are enough.

By doing basic preventive maintenance, you reduce repair costs, avoid sudden failures, and extend service life. More importantly, you build confidence in the blower and in your production system. That reliability is exactly why Roots blowers remain a top choice in industrial applications.

roots blower product information

Web: http://www.greentechblower.com  (Group Web)  ‖  http://www.zqblower.cn  (Chinese)  ‖ http://www.ringblower.cn/ (Ring blower)  ‖  http://www.china-blower.com  (Roots Blower)