Kelly Paffel and the Swagelok Energy Team are worldwide authorities in steam and condensate systems.

Archive for June 2009

 
 

Steam distribution

As part of our cost savings efforts in our company, we are being asked to measure steam usage in  different units of the plant.  We currently  estimate a percentage of the cost to generate the steam  for each unit .  We would like to measure the steam usage so we can be charged for what we actually  used by each unit.   
 
Do you have any experience with measuring steam flow?  We were originally going to use orifice plates to measure the condensate sent back to the boilers but we can not find a place to install the orifice plates.  We are now looking at putting the orifice plates in the steam mains.  Is this a good idea?  I’ve used orifice plates in water but never in steam.  Are there any concerns with using them with steam?
 
We are looking at meters from Rosemount.   
 
 Is there a better type of meter with comparable cost than an orifice plate? 

Steam Safety Installation “Best Practices”

One of the most critical automatic safety devices in a steam system is the safety valve. The safety valve provides a protective measure for lives, equipment, and property from potentially dangerous levels of temperature and forces caused by excessive steam pressure in a system.

Safety valves are a requirement by code and insurance requirements.

Installation

· The steam system must be clean and free of any dirt or sediment before commissioning the steam system with a safety valve.

· The safety valve must be mounted vertically with the valve’s spindle in an upright vertical position.

· The inlet steam piping to the safety valve must be equal to or larger than the safety valve inlet connection.

Read the full Best Practices at:

http://www.plantsupport.com/download/no17.pdf