What are the signs of mechanical seal failure?

2025-10-20

The core signs of mechanical seal failure are visible leaks and abnormal equipment performance.

Key Failure Signs

1. Leakage
- Obvious dripping or streaming of fluid from the seal area (exceeds the normal acceptable rate, usually >5 droplets per minute).
- Accumulation of fluid or stains around the seal and adjacent components.
2. Abnormal Sounds/Vibrations
- Unusual grinding, squealing, or rattling noises from the seal region, indicating worn or misaligned seal faces.
- Increased equipment vibration, often caused by seal damage leading to unstable operation.
3. Elevated Temperature
- Higher-than-normal temperature at the seal housing, resulting from insufficient lubrication, dry running, or excessive friction between seal faces.
4. Reduced Equipment Efficiency
- Drop in pump pressure, flow rate, or compressor output, as seal leakage affects system performance.
- Increased energy consumption due to the seal’s increased resistance.
5. Visual Damage
- Visible wear, scratches, or cracks on the seal faces when inspected after disassembly.
- Deterioration (swelling, hardening, or tearing) of elastomeric components like O-rings or gaskets.

Jiaxing Burgmann Mechanical Seal Co., Ltd

Email: doris@mechanicalseal.com.cn

Skype: kathysunlin

Fax: 86-573-84072317

Mob: 86-15381220188

WhatsApp: 8615958372402

Website: www.industrial-mechanicalseals.com

Add: A-5 Wanyangzhongchuangcheng, Ganyao Town, Jiashan county, Jiaxing, Zhejiang, China. 314107

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86-0573-84133388

No. 28 route de no. 28 Chengxi, le comté de Jiashan, Jiaxing, Zhejiang, Chine 314100

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