Electronically controlled ball valve
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Posted by: themonkey ®

11/02/2005, 13:50:08

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looking for some help... i don't know what products may be available for my need, and i thought someone could point me in the right direction...

my truck has a supplemental propane injection system. there is a 1/2" npt ball valve under the hood (to control LPG vapor into intake). i would like to control the ball valve dynamically (not just open/closed) from inside the cab. is there a valve & controller that i can install that will work on 12v?

thanks for any ideas. if you have any suggestions, a link to any products would be helpful.






Modified by themonkey at Wed, Nov 02, 2005, 13:51:05

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Re: Electronically controlled ball valve
Re: Electronically controlled ball valve -- themonkey Post Reply Top of thread Forum
Posted by: randykimball ®
Barney
11/02/2005, 19:49:45

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Yes.
One quick way is to go to a motion/bearing supply and ask for a catalog. They may even be willing to help you select one. They may lean towards the higher priced versions, so use logic. Some of these vendors even have gas/liquid/hydraulic specialist in-house to help you. Also, one of the supply houses that carry a bundle of commercial gaggets (not mentioning a name)will have a choice to pick from. Many proportional or metering valves operate on small voltages. 12VDC should not be a problem. Often you purchase the valve and the correct coil or actuator for the voltage you are providing.

If you want to select a various amount of flow according to how the engine is performing (for example), you will need a product in the cab that will vary the voltage to the valve in order to achieve this. This could be as simple as a wire wound resistor "pot" to divide the voltage and thus adjust the current flow to the coil making the valve adjustment. Be sure the "pot" will handle the current the coil or actuator is rated at. (And remember that leaning out an engine can cause it to get mighty hot at the top of the pistons. You can melt the piston domes.)

-randy-




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