Lever valve - piping

[Jupiter01]

I’ve got a 25mm MDPE pipe going to my garden room and I will terminate this into a lever valve as it enters the building.
After the lever valve, I will be using Hep20 pipe. Should I use a short section of copper to and from the valve or can I use hep20 here too? I thought the copper pipe will give me a more solid structure around the lever valve.

 

[Exedon]

When we were doing newbuild and all plastic systems. We would always have a short piece of copper out of stop tap to give sparks something to put a bonding clip on!

 

[Jupiter01]

When we were doing newbuild and all plastic systems. We would always have a short piece of copper out of stop tap to give sparks something to put a bonding clip on!

would you recommend a copper pipe on both sides of the lever valve? On the incoming side, we have a 25mm MDPE coming in.

 

[Exedon]

Whatever works for you no reason not to both sides of valve.

 

[blup]

Properly inserted Hep woks with both. I prefer Speed fit and copper pipe.