I need to replace a solenoid valve, and I need help in identifying the specifications that I should check for an equivalent replacement.
This is a picture of the valve itself:
If it matters, the valve is used to control water flow with a whole house humidifier. The required inlet and outlet pipe sizes are understandably constrained by the existing piping.
This site provides a good overview of the terminology involved, but also mentions a few terms that aren't listed on the label. Their review is echoed by this site, which covers many of the same terms.
My online searching has yielded a couple of suggested equivalent parts, as well as a different version of the value offered by the OEM of the humidifier. Some of the suggested equivalent parts are roughly half the price of the OEM replacement part. But I would like to make sure that I'm truly buying an equivalent part.
What specifications do I need to verify before purchasing a replacement solenoid valve?