special solenoid valve

Hello,

I have a nitrous oxide system that I am adding an emergency shutoff valve system to. The valve does not require any constant current to keep it ON or OFF. Just a momentary 12v to either the ON circuit wire or OFF circuit wire. It has a 3rd wire which is the valve solenoid ground. I want to set it up so that the existing switched ON 12v arming circuit also produces a momentary 12v pulse that will activate the emergency valve to the ON position circuit wire and when the arming switch is turned OFF, another momentary 12v pulse is sent to the emergency valve OFF position circuit wire. The emergency shutoff valve is supplied with a momentary 2 way switch that I don't want to use to keep the installation clean.  Per the mfg there is no need for a relay due to low current is used just to activate the valve from one state to the other. Anyone have any suggestions on how to accomplish this?

Thanks!

A diagram of your existing circuit would help.

You may be able to use this circuit twice.

Thanks for the reply.

That configuration would work for when the main arming switch is turned ON. It would produce the needed momentary voltage pulse to the valve solenoid ON circuit. The problem is when the main arming switch is turned OFF, I would need to produce a momentary voltage pulse to the valve solenoid OFF circuit. The valve has 3 wires: one for a momentary voltage to turn the valve ON, one for a momentary voltage to turn the valve OFF, and a ground.

I don't understand your Question I guess???

If we are dealing wit just pulses try this circuit,

The ON circuit and the OFF circuit of the valve needs to be connected to the momentary 12v circuits. The arming switch currently is used just to turn the entire system ON and OFF. It is just that, an On and OFF switch. The valve is a completely separate component that I want to activate with the same switch. What I need is a separate momentary 12v pulse to activate the valve to the ON  position when the arming switch is turned ON (main power ON) and a separate momentary 12v pulse to activate the valve to the OFF position when the arming switch is turned OFF (main power OFF). Arming the system and activating the valve are two totally different independent operations to be perfomed hopefully with the same switch. Unfortunately I am not familiar enough with this site to provide a schematic of the current setup but I hope this clears things up.

Thanks

I did not post those relay diagrams. Hotwaterwizard posted those and based on what I see it was a nice try but does not do what I need it to do and is not a accurate representation of the component functionalities.

If you read my circuit description carefully you should understand exactly what I'm looking for. I need a momentary 12v pulse when my ON/OFF switch is turned ON for one circuit and another momentary 12v pulse when the ON/OFF switch is turned OFF for another circuit. The trick here is to get a momentary 12v pulse to the solenoid valve OFF circuit when the power is turned OFF at the switch.

Thanks