When pressurizing your Spike Conical you'll always want to use a pressure relief valve (PRV). This will prevent the tank from being over pressurized and causing a potential failure to occur. Our PRV was developed with our OEM specifically to work with our new CF series Conical. It will keep your tank below the 15psi max working pressure rating. The PRV also has a handy bleeder pull ring to release built up pressure.
Specs:-15psi release-1/4"npt threads