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Nicholson Hi Capacity Thermostatic Trap

Dave in QCA
Dave in QCA Member Posts: 1,788
in Buy, Sell, Barter
Here is a Nicholson high Capacity Trap.  Pipe size is 3/4".  Not sure what it is rated.  Never used.



Best Offer plus actual shipping.
Dave in Quad Cities, America
Weil-McLain 680 with Riello 2-stage burner, December 2012. Firing rate=375MBH Low, 690MBH Hi.
System = Early Dunham 2-pipe Vacuo-Vapor (inlet and outlet both at bottom of radiators) Traps are Dunham #2 rebuilt w. Barnes-Jones Cage Units, Dunham-Bush 1E, Mepco 1E, and Armstrong TS-2. All valves haveTunstall orifices sized at 8 oz.
Current connected load EDR= 1,259 sq ft, Original system EDR = 2,100 sq ft Vaporstat, 13 oz cutout, 4 oz cutin - Temp. control Tekmar 279.
http://grandviewdavenport.com

Comments

  • Steamhead
    Steamhead Member Posts: 17,364
    Can't seem to find specs on that

    are there any more numbers on it? Do you know the seat orifice diameter? 
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Consulting
  • Dave in QCA
    Dave in QCA Member Posts: 1,788
    I Will Open it and Check

    Frank, I will see if I can get this opened up and measure the orifice.  I also just corrected the original post.  The pipe size is NOT 2/3", it is 3/4"!  Ha!
    Dave in Quad Cities, America
    Weil-McLain 680 with Riello 2-stage burner, December 2012. Firing rate=375MBH Low, 690MBH Hi.
    System = Early Dunham 2-pipe Vacuo-Vapor (inlet and outlet both at bottom of radiators) Traps are Dunham #2 rebuilt w. Barnes-Jones Cage Units, Dunham-Bush 1E, Mepco 1E, and Armstrong TS-2. All valves haveTunstall orifices sized at 8 oz.
    Current connected load EDR= 1,259 sq ft, Original system EDR = 2,100 sq ft Vaporstat, 13 oz cutout, 4 oz cutin - Temp. control Tekmar 279.
    http://grandviewdavenport.com
  • Dave in QCA
    Dave in QCA Member Posts: 1,788
    the dimension is....

    Sorry for taking so long on this.  I tried to measure it and then forgot to get back to you.

    I took the top off of the trap and then used drill bits to try to determine the size of the opening.  1/4" bit was loose and sloppy in the hole.  3/8" would not fit.  I seem to be missing my 5/16" bit, but I'm guessing that is probably the size.  I also opened up a Dunham 1E and the orifice in that looked about the same size.  So, while it is a pretty nice size, it is not as big as I thought it would be.
    Dave in Quad Cities, America
    Weil-McLain 680 with Riello 2-stage burner, December 2012. Firing rate=375MBH Low, 690MBH Hi.
    System = Early Dunham 2-pipe Vacuo-Vapor (inlet and outlet both at bottom of radiators) Traps are Dunham #2 rebuilt w. Barnes-Jones Cage Units, Dunham-Bush 1E, Mepco 1E, and Armstrong TS-2. All valves haveTunstall orifices sized at 8 oz.
    Current connected load EDR= 1,259 sq ft, Original system EDR = 2,100 sq ft Vaporstat, 13 oz cutout, 4 oz cutin - Temp. control Tekmar 279.
    http://grandviewdavenport.com
  • Steamhead
    Steamhead Member Posts: 17,364
    OK, thanks

    it's not one of their high-capacity traps, then. 
    All Steamed Up, Inc.
    Towson, MD, USA
    Steam, Vapor & Hot-Water Heating Specialists
    Oil & Gas Burner Service
    Consulting
This discussion has been closed.

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