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Main Air Vents

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Garbear
Garbear Member Posts: 19
in THE MAIN WALL
Would like to add more air vents to low pressure steam main pipe supply lines. Been using Vent-Rite #35 with good success. Unable to find out the air removal ratings in cubic feet per minute(CFM)on the #35 air vents. In touch with Swan & they not have capacities. Attempted contacting Vent-Rite in Benton Harbor,MI & got dead phone numbers. There must be someone out there that has tables, charts, capacities of these vents, ... any suggestions ? or just email or post the #35 removal rating for calculations.

1.4 cfm is used in many of the steam instruction books as a "common" or "typical" rating. Would really like the the correct rating for the Vent-Rite #35. Also any suggestions for an equal or better air vents for 2" & 3-1/2" steam mains?

Comments

  • SpeyFitter
    SpeyFitter Member Posts: 422
    Vent-Rite #35

    I would recommend that you download from this site:
    Balancing Steam Systems Using a Venting Capacity Chart.pdf. The values for a Vent-Rite #35 are low compared to a Gorton #1.
    Here's some values for 1oz., 2oz., and 3oz. steam supply pressures:

    Vent-Rite #35 0.110 0.200 0.250

    There was an error rendering this rich post.

  • BAB
    BAB Member Posts: 118
    Vent-Rite #35

    Thanks for the response. I ordered the email printing. Hope it helps. Bromley
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