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Posted by mark on March 14, 2011 at 13:20:34:
In Reply to: Re: Feewd water controller posted by Joe Lambert on March 14, 2011 at 07:07:46:
: Fisher Rep here:
: The 667 is actually the model number of a spring to close pneumatic actuator. To actually select a valve we will need the pressure, temperature and flow rate of the feedwater, and some other information. If this is a low pressure boiler, maybe the Fisher valves will be a bit of an overkill.
The boiler is rated at 50k/hr, 3 drum water tube. Operating pressure is set at 100-120. Feedwater psi set at 150, FW temp at 220, feed water piping is 1 1/2" threaded. For the last 20 years wwe had the copes-vulcan FW control. Just looking for other brands in order for rplacement. Trying to stay away from electronic control due to temps and dust enviroment.