Product use
Rotolock valve is a special refrigeration valve with a teflon ring seated against a machined surface enclosed by a threaded fitting; this valve allows the technician to remove all refrigerant from the compressor without requiring removal of the system charge.
![](https://afakd.com/wp-content/uploads/2023/01/rotolock-valve.png)
![](https://afakd.com/wp-content/uploads/2023/01/rotolock-valve2.png)