For stainless steel elbows that have not been used for a long time, they need maintenance.

Some common valves such as globe valves in stainless steel elbows should be fully opened or fully closed during use.
Stainless steel elbows cannot be used as flow regulation, so as to avoid the cover from being corroded and worn occur.

Stainless steel elbows must be placed in a dry, ventilated place. Also ensure that the stainless steel elbow is clean.