Boiler Preparation, Start-Up and Shutdown
With the boiler pressure at a minimum of 75% of the safety valve set pressure, the safety valve try lever is lifted to wide open position. Steam is discharged for 5 sec to 10 sec. The try lever is released, and the disk should snap to the closed position against the valve seat. Malfunctioning safety valves must be replaced as soon as possible.
Safety Guideline for Boiler Operations in Machinery Spaces
ignated opening in the water heater in place of the factory fur-nished valve. For safe operation of the water heater, the relief valve must not be removed from it's designated opening or plugged. The temperature-pressure relief valve must be installed direct-ly into the fitting of the water heater designated for the relief valve.
Additional water heater safety tips. Keep safe by following these water heater recommendations: Remove paper, dust or other combustibles from the heater enclosure. Extinguish the pilot light before using flammable liquids or setting off aerosol bug bombs. If the device is in the garage, raise it so the pilot light is 18 inches above the floor. This helps prevent ignition of gasoline vapors that collect near …
Basics of hot water heating boilers - Specifying Engineer
Ignition Although boilers have many different specific ignition systems, they all follow the same basic sequence of steps: 1. Pre-purge of the furnace. 2. Reduction of air flow for stable ignition. 3. Pilot burner ignition 4. Main burner ignition. Small boilers often have completely automatic ignition …
Boiler Water Tests and Treatment To reduce corrosion and scale formation in boilers, boiler water must be maintained in slightly alkaline conditions by carefully controlled addition of chemicals. Water in the boilers, steam/steam generators together with samples from their feed water systems is …
Oct 25, 2011 · lowering the boiler water to the minimum safe operating level, qualified personnel should use extreme caution. Never allow the water level to drop out of sight in the water gage glass. Low-water fuel cutoffs should be flushed daily for steam boilers operating at more than 15 psig and weekly for those operating at less than 15 psig.
Boiler Not Igniting? Here's 6 Reasons Why, And What To Do