What you meant by this question is uncertain. If you are asking about the definition then Boiler steam pressure is the pressure developed by a water steam boiler, else if you are asking about the Rated boiler steam pressure then it is the safe operating pressure a boiler can operate, else if you are asking about Maximum boiler steam pressure then it is the maximum pressure that a boiler can produce with out failure.

Well over 2,000 DEG F super heated steam like ships and power plants use

For boiler info try gasboilerspareparts.com

form_title=Have a Boiler Installed form_header=Set up a new heating system in your home by using steam generated by a boiler. What is the square footage of the space to be heated?=_ What kind of HVAC system is currently installed?=_ Is this boiler for a residence or commercial facility?= () Residence () Commerical () Other

171 deg C

chemical is used in sub critical boiler that is tri sodium phosphate added in durm.

The main purpose is raise in pH value , salt is converted in to sludge form