valve on A/C compressor. What's it called?

[Periculum]

I was trying to look up the valve that is on the side of the A/C compressor. It's the valve that's designed to blow before anything else in the A/C does. Is this something I can order from a parts shop and if so, what would it be called?

My mechanic mentioned "high pressure valve" but I got nothing from that.

 

[caboose]

If it's a safety valve, it's probably called a pressure release valve

 

[nootrac22]

Honda Parts Store *The Honda Store > Discount Honda Car Parts Superstore

can find anything you need here.