The primary reason mechanical seals are used in rotating equipment is to reduce what?

The primary reason mechanical seals are used in rotating equipment is to reduce what?

• A. Lower maintenance costs
• B. Increased friction
• C. Higher thermal resistance
• D. Faster startup

Answer: (A)

Mechanical seals prevent fluid from leaking along the shaft in rotating equipment. By providing a tight, leak‑proof interface, they reduce the need for frequent packing adjustments and replacements, cutting maintenance requirements and costs. They’re mainly about containment and reliability, not about creating more friction, increasing thermal resistance, or speeding up startups.

Mechanical seals prevent fluid from leaking along the shaft in rotating equipment. By providing a tight, leak‑proof interface, they reduce the need for frequent packing adjustments and replacements, cutting maintenance requirements and costs. They’re mainly about containment and reliability, not about creating more friction, increasing thermal resistance, or speeding up startups.