Mechanical seal.

摘要

A mechanical seal is provided with a stationary side sliding ring (52) air-tightly mounted on a housing (1), a rotary side sliding ring (56) air-tightly mounted around an outer periphery of a rotary shaft (2) and brought into intimate and sliding contact with an end face of the stationary side sliding ring. A metal plated film layer (57) is formed over a substantially full circumferential surface of the rotary side sliding ring exposed in a liquid to be sealed. <IMAGE>