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Is this a Leafield valve?

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  • Is this a Leafield valve?


  • #2
    What inflatable is that? Often the valve types are used as selling points.

    Can't read read what's on the lid. "IN" something.
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    • #3
      It's an "Inmar" (short for "Inland Marine?"). They import out of California. Used to be "JP Marine." I know the pressure release valves they use are Leafield. But that's a mystery too. The pressure release valve says 3.2 psi but the inflatable is rated for 3.6 psi. When I inflate they start to exhaust at 3.8 psi I can hear them. Could be a simple typo whoever was making pressure release valves that day?

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      • #4
        Couldn't find the valve brand on the Inmar site, but with the white cross it looks like a Leafield.
        BOAT SPECS | FORUM HELP | STARCRAFT FORUM | SHOP iBoats
        Please, no PM's (Private Messages) regarding boat/engine problems.
        That is what the forums are for.
        Only forum/moderator issues will be answered in PM's.

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        • #5
          Originally posted by Black Rat View Post
          It's an "Inmar" (short for "Inland Marine?"). They import out of California. Used to be "JP Marine." I know the pressure release valves they use are Leafield. But that's a mystery too. The pressure release valve says 3.2 psi but the inflatable is rated for 3.6 psi. When I inflate they start to exhaust at 3.8 psi I can hear them. Could be a simple typo whoever was making pressure release valves that day?
          None of the valves that have tested opened at the stated pressure written on cap valve, opens at more pressure than stated as you have found already. If I were to install those pressure relief valves would have installed one less size to open at 3.3- 3.5 ish. Any inflatable that maintains 3.0 PSI on water will achieve an oustanding water performance, there's no difference in performance between 3.0 to 3.5 PSI. With 3.0 all tubes will be inflated stone hard.

          Happy Boating


          Sea Rider 320, 380 Sibs, 450 Rib, 2 Strokes Tohatsu 5,18 & 30 HP Proud Smokers

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          • #6
            Yes...the 12.5' 380 I still have never did vent to my knowledge. Found the tubes at 4.6 psi one day in the hot sun.

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            • #7
              Originally posted by Black Rat View Post
              Yes...the 12.5' 380 I still have never did vent to my knowledge. Found the tubes at 4.6 psi one day in the hot sun.
              Personally don't like installing pressure relief valves, if doesn't open up will surely blow any seam, worse if the Sib is old and with already dried glue issues holding seams in place.

              Happy Boating


              Sea Rider 320, 380 Sibs, 450 Rib, 2 Strokes Tohatsu 5,18 & 30 HP Proud Smokers

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              • #8
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                Yes it is. I have an Inmar 470-MIL hypalon I bought from them in San Diego. All their screw on pressure gauges, pumps, etc accessories they sell only have the Leafield fitting.

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