Pressure valve
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Pressure valve

  1. #1
    Senior Member Widetrack's Avatar
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    Default Pressure valve

    I have a Watts pressure valve on my inlet side from the pump to motor. Where would the best place be to gauge the pressure from the valve or the thermostat housing or?

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    Super Moderator HammerDown's Avatar
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    I have my pressure gauge in the port right next to the thermostate housing, seemed like a good place to me.
    <img src=http://www.performanceboats.com/gallery/data/500/medium/06-30-11_1234.jpg border=0 alt= />

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    Senior Member Brendellajet's Avatar
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    I've got a thermostat block off plate(easy to make) and drilled & tapped for the 1/8th NPT:-4 fitting. Works bitchen.

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    Senior Member Widetrack's Avatar
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    Do you run a gauge all the time or just to check pressure!

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    TJS
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    I have a block off plate as well. To me it seemed kind of thin and my gauge uses a 1/4 NPT. I made an alum. 1/4 NPT "bung" and welded it on from the back side. The gauge is always there. I set my watts so I see about 14 psi on the gauge at WOT.
    T.J.

    Here is a pic.

  8. #6
    Super Moderator HammerDown's Avatar
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    Quote Originally Posted by Widetrack View Post
    Do you run a gauge all the time or just to check pressure!
    I run the Rex Marine Thermostat (bypass system) for years now and it works GREAT! So there is a thermostat in the special housing. I keep the water pressure guage right mounted next to it on a port in the intake mamafold. I never see any readings less than 8 psi or more than 12 psi > perfect!
    <img src=http://www.performanceboats.com/gallery/data/500/medium/06-30-11_1234.jpg border=0 alt= />

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    Senior Member JetBoatCop's Avatar
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    Where can you get the Watts valve, and does it go inline on the hose coming from the pump? Also, is there still a lot of volume?
    '78 Taylor SS 460 BBF, Under Construction
    '03 Glastron SF 185 18', 4.3 Volvo Penta
    '95 Dodge Cummins 3500 4x4 Single Cab, Dually, Triple Gauges, and some pump work!

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    Senior Member Widetrack's Avatar
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    Quote Originally Posted by JetBoatCop View Post
    Where can you get the Watts valve, and does it go inline on the hose coming from the pump? Also, is there still a lot of volume?
    If you are running log manifolds you don't need one. The watts valve can be bought at a plumbing supply or a pump supply source. It is mainly used for regulating water for homes and industrial apps. The pressure coming in is regulated to a set point from 15# to 75#. I think that you are building a Taylor SS and a ball valve on the JE pump pipe before the hose will work fine and cheaper! IMO. I will get the part no. if you need one!

  11. #9
    Senior Member JetBoatCop's Avatar
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    Ok, I have the ball valve. Do the logs dissapate the pressure? I was just worried about blowin through head gaskets.
    '78 Taylor SS 460 BBF, Under Construction
    '03 Glastron SF 185 18', 4.3 Volvo Penta
    '95 Dodge Cummins 3500 4x4 Single Cab, Dually, Triple Gauges, and some pump work!

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    Senior Member Brendellajet's Avatar
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    my gauge is full tie in the dash. Hi Compression pump gas. Water pressure plays a critical role in fighting detonation. WOT Im seeing 23 lbs pressure, water temp is around 130 or so.

  13. #11
    Senior Member Widetrack's Avatar
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    Quote Originally Posted by Brendellajet View Post
    my gauge is full tie in the dash. Hi Compression pump gas. Water pressure plays a critical role in fighting detonation. WOT Im seeing 23 lbs pressure, water temp is around 130 or so.
    All good info. guys first time with this setup just learning the ropes!!

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    Default watts valve

    I installed watts valves on two different boats[jets]. Both malfunctioned,And yes ikept the screen clean. ......i recomend a pressure bypass valve set to blow extra water out the transom. Htp sells them with a install kit but I didn't like the install kit. Somebody on here can probably give you the part # and you can pick it up locally.

  15. #13
    No Sandbar To Far sanger rat's Avatar
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    TSC sells this nice aluminum one.
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    Quote Originally Posted by One More Year View Post
    The only blab's I will even be a part of is just when it is me they are talking about. Aaaah yes I can see a few good looking shiny tall deck motors on the beach, with barely enough fuel to get back to the launch saying, "Holy crap how fast you think that Daytona was going man? That's like the 20th time he's gone by today?"

  16. #14
    Senior Member Brendellajet's Avatar
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    Quote Originally Posted by Wicked Performance Boats View Post
    I installed watts valves on two different boats[jets]. Both malfunctioned,And yes ikept the screen clean. ......i recomend a pressure bypass valve set to blow extra water out the transom. Htp sells them with a install kit but I didn't like the install kit. Somebody on here can probably give you the part # and you can pick it up locally.
    pay attention, take the screen out!

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