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Old 04-20-2007, 03:58 PM   #1 (permalink)
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Balanced valves?

Are any spyder valves "balanced"? I have a tinkering idea and it would only work on a balanced valve.

Also, exactly how much force is needed to fire a balanced valve? Only the force of the spring, right?
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Old 04-20-2007, 04:13 PM   #2 (permalink)
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Regular spyder valves are not balanced. It is the pressure itself that holds the poppet closed.
You can remove the valve spring, and it will still work.

This is why when you increase the pressure above a certain point, the FPS will drop because the pressure holding the valve becomes too hard for the hammer to overcome.

So, if you are thinking of using a simple solenoid to control the sheridan-poppet, it won't work.

The new Spyder VS versions are "balanced" though. For those, only spring-pressure holds the valve shut.

nick
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Old 04-20-2007, 10:12 PM   #3 (permalink)
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Quote:
Originally Posted by HP_Lovecraft View Post
Regular spyder valves are not balanced. It is the pressure itself that holds the poppet closed.
You can remove the valve spring, and it will still work.

This is why when you increase the pressure above a certain point, the FPS will drop because the pressure holding the valve becomes too hard for the hammer to overcome.

So, if you are thinking of using a simple solenoid to control the sheridan-poppet, it won't work.

The new Spyder VS versions are "balanced" though. For those, only spring-pressure holds the valve shut.

nick

Hmm... are there any aftermarket balanced spyder valves? Or maybe I could try and find one of them VS valves in the BST somewhere...

If not, they make aftermarket balanced cocker valves, right? I'd have to buy a cocker body as well... but watev.

And yes, you guessed it. I'm going to use a linear solenoid to fire the valve.
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Old 04-20-2007, 11:37 PM   #4 (permalink)
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Is that not what an MQ valve is? A balanced vavle and solenoid all built into the one part?
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Old 04-21-2007, 12:56 AM   #5 (permalink)
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Pretty much.

I can't wait to tinker around with it.
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Old 04-21-2007, 08:51 PM   #6 (permalink)
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New spyders are sporting a balanced valve.

There was also an aftermarket valve called the Newton, or some such.
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