what PSI are you firing your horn at ?

Main Train Horns
1

I fire at 200psi.

I have read conflicting information on this forum about horn damage when firing at 200psi.

Is there actual truth to this?

What does a damaged diaphram look and sound like anyway?

Should diaphrams be replaced every so often?

Thanks and Happy New Year!

2

I use 150psi.

3

200 for a year. I definately like the sound of the canadian k5 better than the american at 200psi.

My horns are out now. My diaphrams were brand new, so I should pull a back cap and inspect just for kicks.

4

diaphragms should be smooth and no dents or creases. When I had a damaged diaphragm with my shockers, it squeals when fired at full tank pressure.

5

If you have a K5LA, 150 is enough… i think… through experience…

6

like the tool man says, MORE POWA!

7

200 psi for 8 years…still just as loud as day 1

Sent from my DROIDX using Tapatalk

8

I used 200 psi for 2.5 years with no problem on my K5s. Now I use 170 on the K5s and 120 for the P3s. I never had any problem or noticed any undue wear on the diaphrams.

9

Thanks, just curious, why did you drop the pressure down to 170 psi ?

10

I wanted to have longer Blasts, and so much pressure seems to change the note to A higher pitch so I put A pressure regulator in at 170 psi but my system still charges to 200 psi. I do have A little bit longer blast time now and my system works well. BTW Very good Idea using the K5s on your boat. I like IT !

                                             Rex..........
11

I’m firing both my k3 and shockers @ 150 psi. My compressors are rated for 200 psi but to get more life out of them i run 3/4 of the max.

Plus, i think the k3’s especially sound better at a lower psi. Its a deeper tone compared to the high pitch 200 psi provides.

12

I use 200 Psi for my shockers and a pressure flow regulator on my truck horns which is already built into the valve for them. I would recommend using 150 max for Nathans and if your gonna go with some Leslie’s Go for 145 Psi.

13

I bought a pressure regulator for my air doors, so I guess next season (100 days away:mad:) I will hook it up to the horns and compare how they sound at different PSI.

1 question though, does the pressure regulator get installed between the tank and the valve or between the valve and the horns???

Its a mcmaster carr…

Thanks!!!

14

First, running your horns at 200 PSI might distort their sound. Some say they aren’t that much louder than 150 or 175 PSI.

Second, I’d put the regulator between the tank and valve which should extend the valve’s life.

Third, the diaphrams may need to be replaced occasionally but I think only when they go bad.

15

Thank you for the information!!!