Difference between ED, ET, ES and EZ

Hi there,

To me, the ED and ET are very similar e-body valves, with the only difference I can see is that the ET has a soft seat option as standard, but even then, the ED has up to class V as option.

Also, both the ES and EZ are unbalanced types, so quite similar.

I've looked around, and can't seem to see any guideline on why you would select an Ed over and Et, and the same, why an ES over an EZ.

Any input on why or a link to a document on why, would be great.



1 Reply

  • Hi Gerald,

    The ED and ET valves are both globe/angle valves, with balanced plug type, cage guiding, flow down, 1 to 8 inch, and CL150-CL600. The differentiation between these two are their standard offering of shut off classes and the the optional offering of shut off classes. The ET is also suitable for higher temperatures(up to 316C) and the ED is suitable for high temperatures and high shutoff pressure.

    Both the EZ and ES are unbalanced, flow up, and have CL IV standard shut off. There are quite a bit more differences between the EZ and the ES. The EZ is a globe valve, sizes 0.5 to 4 inch, CL125-CL600, post guiding. The ES is a globe/angle valve, 1 to 8 inch, CL150-CL600, cage guiding. The EZ uses a seat ring retainer in place of a cage and is suitable for controlling viscous, dirty, or hard-to-handle fluids. The ES is suitable for high temperature and clean liquids and gases.

    If you need more specifics, please check the valve bulletins.