I think I see now what is going on.
Looks like there are several different Original Sources, just like Moroso for the Original Accusump Oil Accumalator.
None in my opion except Canton is the original but who knows.
Here is thier links and some information about their diferrent valves.
Ed
http://www.accusump.com/
http://www.accusump.com/acc_products/acc_units.html
http://www.accusump.com/acc_products/acc_valves.html
Our E.P.C. valving is ideal for those looking for the convenience of an electric valve and the fast refill rate required in racing applications. The pressure control system keeps the electric valve in the off position during times of normal oil pressure. With the valve in the off position the Accusump is able to quickly regain oil pressure after discharge, thus being ready for the next oil surge. When the engine's oil pressure drops below a predetermined level the valve opens and releases the stored oil in to the system.
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NOTE:
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Electric Pressure Control Valving
E.P.C. Valving (#24-271, 24-273, 24-275)
Our E.P.C. valving has the convenience of an electric valve and the rapid refill rate of a manual valve. The E.P.C. valving allows the Accusump to quickly charge with oil when the engine's oil pressure is above a predetermined level and discharge when the engine's oil pressure drops below that level.
Comes with an electric valve, regulator, toggle switch, wire, terminals, and a pipe nipple.
Part #:'s
24-271 E.P.C. valve kit for a discharge of 20-25 PSI
24-271K to refit a standard #24-270 to a #24-271
24-273 E.P.C. valve kit for a discharge of 35-40 PSI
24-273K to refit a standard #24-270 to a #24-273
24-275 E.P.C. valve kit for a discharge of 55-60 PSI
24-273K to refit a standard #24-270 to a #24-275
Click Here To Purchase A Valve !
Concerned about which EPC Valve to use?
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What E.P.C. Valve Pressure Setting Do I Need?
The Accusump E.P.C Valve is offered at three different pressure settings. Each valve is designed to allow the Accusump to recharge when the engine's pressure is above the pressure setting and to discharge when it is below.
When choosing the pressure setting that is right for your application it is important to consider you engine's oil pressure during normal conditions. You will want to choose an E.P.C valve setting that is below that normal engine pressure. This way when your engine is running normally the valve will allow your Accusump to accumulate oil pressure. Then when you engine drops below its normal pressure and the valve's pressure setting it will discharge its accumulated oil in the Accusump. If unsure of your engine's pressure it is best to choose the E.P.C valve with the lowest rating, the 20-25 psi valve.
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For other applications an electric valve can simplify it's use. They are ideal when used in applications where it is difficult to access a manual valve lever or to plumb the Accusump remotely like in a 'daily driver', boat, or an RV. This electric valve can be opened and closed from a remote dash-mounted switch or it can be wired directly into the ignition so it will open and close automatically when the ignition is in the 'on' or the 'off' position.
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