Steam trap troubleshooting method

Fault conditions

cause of issue

Method of exclusion

Undrained

Filter, launch duct, semi-float vent or drain nozzle blocked

Cleaning

Undrained

Working pressure difference is exceeded, the float does not sink

Change to the appropriate model

Poor drainage

Filter, radiator or drain nozzle blocked

Cleaning

Poor drainage

Insufficient drain valve

Change to the appropriate model

Poor drainage

Does not meet the trap pressure difference

Change to the appropriate model

leakage

Bonnet gasket damage

Tighten the bolt or replace the gasket

leakage

Semi-floating ball and drain nozzle are not sealed

Remove the half float, apply the abrasive sand, and grind it against the nozzle until it fits well.

Spray

Nozzle is not sealed

Grinding nozzle

Spray

The working pressure difference fluctuates too much and too fast, destroying the water seal inside the valve body

Close the shut-off valve in front of the trap for 1-2 minutes, then slowly open it to resume normal operation.

Spray

Bypass valve failure

Replace the bypass valve