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Active Member


Friday, October 20th 2006, 7:45am

DC Pressure Drop

I am aware that RPZ anti-syphon valves have a pressure drop. Is this also true of the DC type? If so how much?


Supreme Member


Friday, October 20th 2006, 9:22am

Just like control valve, DC have a pressure loss associated with them, but they will usually be much less than RPZ.

For example, if you compare Watts RPZ (009), both the 3/4" and 1" have about 12-15psi pressure loss. But the Watts DC (007) in 3/4" has only about 5psi loss while the 1" has about 3psi loss.

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